/* Subroutines used for code generation on IBM S/390 and zSeries
- Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004
+ Free Software Foundation, Inc.
Contributed by Hartmut Penner (hpenner@de.ibm.com) and
Ulrich Weigand (uweigand@de.ibm.com).
#define SYMBOL_FLAG_ALIGN1 (SYMBOL_FLAG_MACH_DEP << 0)
-static bool s390_assemble_integer PARAMS ((rtx, unsigned int, int));
-static void s390_select_rtx_section PARAMS ((enum machine_mode, rtx,
- unsigned HOST_WIDE_INT));
-static void s390_encode_section_info PARAMS ((tree, rtx, int));
-static bool s390_cannot_force_const_mem PARAMS ((rtx));
-static rtx s390_delegitimize_address PARAMS ((rtx));
-static void s390_init_builtins PARAMS ((void));
-static rtx s390_expand_builtin PARAMS ((tree, rtx, rtx,
- enum machine_mode, int));
-static void s390_output_mi_thunk PARAMS ((FILE *, tree, HOST_WIDE_INT,
- HOST_WIDE_INT, tree));
-static enum attr_type s390_safe_attr_type PARAMS ((rtx));
-
-static int s390_adjust_cost PARAMS ((rtx, rtx, rtx, int));
-static int s390_adjust_priority PARAMS ((rtx, int));
-static int s390_issue_rate PARAMS ((void));
-static int s390_use_dfa_pipeline_interface PARAMS ((void));
-static int s390_first_cycle_multipass_dfa_lookahead PARAMS ((void));
-static int s390_sched_reorder2 PARAMS ((FILE *, int, rtx *, int *, int));
-static bool s390_rtx_costs PARAMS ((rtx, int, int, int *));
-static int s390_address_cost PARAMS ((rtx));
-static void s390_reorg PARAMS ((void));
-static bool s390_valid_pointer_mode PARAMS ((enum machine_mode));
+static bool s390_assemble_integer (rtx, unsigned int, int);
+static void s390_select_rtx_section (enum machine_mode, rtx,
+ unsigned HOST_WIDE_INT);
+static void s390_encode_section_info (tree, rtx, int);
+static bool s390_cannot_force_const_mem (rtx);
+static rtx s390_delegitimize_address (rtx);
+static bool s390_return_in_memory (tree, tree);
+static void s390_init_builtins (void);
+static rtx s390_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
+static void s390_output_mi_thunk (FILE *, tree, HOST_WIDE_INT,
+ HOST_WIDE_INT, tree);
+static enum attr_type s390_safe_attr_type (rtx);
+
+static int s390_adjust_cost (rtx, rtx, rtx, int);
+static int s390_adjust_priority (rtx, int);
+static int s390_issue_rate (void);
+static int s390_use_dfa_pipeline_interface (void);
+static int s390_first_cycle_multipass_dfa_lookahead (void);
+static bool s390_rtx_costs (rtx, int, int, int *);
+static int s390_address_cost (rtx);
+static void s390_reorg (void);
+static bool s390_valid_pointer_mode (enum machine_mode);
+static tree s390_build_builtin_va_list (void);
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.word\t"
#undef TARGET_DELEGITIMIZE_ADDRESS
#define TARGET_DELEGITIMIZE_ADDRESS s390_delegitimize_address
+#undef TARGET_RETURN_IN_MEMORY
+#define TARGET_RETURN_IN_MEMORY s390_return_in_memory
+
#undef TARGET_INIT_BUILTINS
#define TARGET_INIT_BUILTINS s390_init_builtins
#undef TARGET_EXPAND_BUILTIN
#define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE s390_use_dfa_pipeline_interface
#undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD
#define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD s390_first_cycle_multipass_dfa_lookahead
-#undef TARGET_SCHED_REORDER2
-#define TARGET_SCHED_REORDER2 s390_sched_reorder2
#undef TARGET_RTX_COSTS
#define TARGET_RTX_COSTS s390_rtx_costs
#undef TARGET_VALID_POINTER_MODE
#define TARGET_VALID_POINTER_MODE s390_valid_pointer_mode
+#undef TARGET_BUILD_BUILTIN_VA_LIST
+#define TARGET_BUILD_BUILTIN_VA_LIST s390_build_builtin_va_list
+
+#undef TARGET_PROMOTE_FUNCTION_ARGS
+#define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_true
+#undef TARGET_PROMOTE_FUNCTION_RETURN
+#define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_true
+
struct gcc_target targetm = TARGET_INITIALIZER;
extern int reload_completed;
struct machine_function GTY(())
{
- /* Label of start of initial literal pool. */
- rtx literal_pool_label;
-
/* Set, if some of the fprs 8-15 need to be saved (64 bit abi). */
int save_fprs_p;
+ /* Set if return address needs to be saved. */
+ bool save_return_addr_p;
+
/* Number of first and last gpr to be saved, restored. */
int first_save_gpr;
int first_restore_gpr;
const char *some_ld_name;
};
-static int s390_match_ccmode_set PARAMS ((rtx, enum machine_mode));
-static int s390_branch_condition_mask PARAMS ((rtx));
-static const char *s390_branch_condition_mnemonic PARAMS ((rtx, int));
-static int check_mode PARAMS ((rtx, enum machine_mode *));
-static int general_s_operand PARAMS ((rtx, enum machine_mode, int));
-static int s390_short_displacement PARAMS ((rtx));
-static int s390_decompose_address PARAMS ((rtx, struct s390_address *));
-static rtx get_thread_pointer PARAMS ((void));
-static rtx legitimize_tls_address PARAMS ((rtx, rtx));
-static const char *get_some_local_dynamic_name PARAMS ((void));
-static int get_some_local_dynamic_name_1 PARAMS ((rtx *, void *));
-static int reg_used_in_mem_p PARAMS ((int, rtx));
-static int addr_generation_dependency_p PARAMS ((rtx, rtx));
-static int s390_split_branches PARAMS ((rtx, bool *));
-static void find_constant_pool_ref PARAMS ((rtx, rtx *));
-static void replace_constant_pool_ref PARAMS ((rtx *, rtx, rtx));
-static rtx find_ltrel_base PARAMS ((rtx));
-static void replace_ltrel_base PARAMS ((rtx *, rtx));
-static void s390_optimize_prolog PARAMS ((int));
-static bool s390_fixup_clobbered_return_reg PARAMS ((rtx));
-static int find_unused_clobbered_reg PARAMS ((void));
-static void s390_frame_info PARAMS ((void));
-static rtx save_fpr PARAMS ((rtx, int, int));
-static rtx restore_fpr PARAMS ((rtx, int, int));
-static rtx save_gprs PARAMS ((rtx, int, int, int));
-static rtx restore_gprs PARAMS ((rtx, int, int, int));
-static int s390_function_arg_size PARAMS ((enum machine_mode, tree));
-static bool s390_function_arg_float PARAMS ((enum machine_mode, tree));
-static struct machine_function * s390_init_machine_status PARAMS ((void));
+static int s390_match_ccmode_set (rtx, enum machine_mode);
+static int s390_branch_condition_mask (rtx);
+static const char *s390_branch_condition_mnemonic (rtx, int);
+static int check_mode (rtx, enum machine_mode *);
+static int general_s_operand (rtx, enum machine_mode, int);
+static int s390_short_displacement (rtx);
+static int s390_decompose_address (rtx, struct s390_address *);
+static rtx get_thread_pointer (void);
+static rtx legitimize_tls_address (rtx, rtx);
+static void print_shift_count_operand (FILE *, rtx);
+static const char *get_some_local_dynamic_name (void);
+static int get_some_local_dynamic_name_1 (rtx *, void *);
+static int reg_used_in_mem_p (int, rtx);
+static int addr_generation_dependency_p (rtx, rtx);
+static int s390_split_branches (void);
+static void find_constant_pool_ref (rtx, rtx *);
+static void replace_constant_pool_ref (rtx *, rtx, rtx);
+static rtx find_ltrel_base (rtx);
+static void replace_ltrel_base (rtx *, rtx);
+static void s390_optimize_prolog (bool);
+static int find_unused_clobbered_reg (void);
+static void s390_frame_info (void);
+static rtx save_fpr (rtx, int, int);
+static rtx restore_fpr (rtx, int, int);
+static rtx save_gprs (rtx, int, int, int);
+static rtx restore_gprs (rtx, int, int, int);
+static int s390_function_arg_size (enum machine_mode, tree);
+static bool s390_function_arg_float (enum machine_mode, tree);
+static struct machine_function * s390_init_machine_status (void);
/* Check whether integer displacement is in range. */
#define DISP_IN_RANGE(d) \
CC mode is at least as constrained as REQ_MODE. */
static int
-s390_match_ccmode_set (set, req_mode)
- rtx set;
- enum machine_mode req_mode;
+s390_match_ccmode_set (rtx set, enum machine_mode req_mode)
{
enum machine_mode set_mode;
If REQ_MODE is VOIDmode, always return false. */
int
-s390_match_ccmode (insn, req_mode)
- rtx insn;
- enum machine_mode req_mode;
+s390_match_ccmode (rtx insn, enum machine_mode req_mode)
{
int i;
if the instruction cannot (TM). */
enum machine_mode
-s390_tm_ccmode (op1, op2, mixed)
- rtx op1;
- rtx op2;
- int mixed;
+s390_tm_ccmode (rtx op1, rtx op2, int mixed)
{
int bit0, bit1;
comparison. */
enum machine_mode
-s390_select_ccmode (code, op0, op1)
- enum rtx_code code;
- rtx op0;
- rtx op1;
+s390_select_ccmode (enum rtx_code code, rtx op0, rtx op1)
{
switch (code)
{
case EQ:
case NE:
if (GET_CODE (op0) == PLUS && GET_CODE (XEXP (op0, 1)) == CONST_INT
- && CONST_OK_FOR_LETTER_P (INTVAL (XEXP (op0, 1)), 'K'))
+ && CONST_OK_FOR_CONSTRAINT_P (INTVAL (XEXP (op0, 1)), 'K', "K"))
return CCAPmode;
if ((GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS
|| GET_CODE (op1) == NEG)
case GE:
case GT:
if (GET_CODE (op0) == PLUS && GET_CODE (XEXP (op0, 1)) == CONST_INT
- && CONST_OK_FOR_LETTER_P (INTVAL (XEXP (op0, 1)), 'K'))
+ && CONST_OK_FOR_CONSTRAINT_P (INTVAL (XEXP (op0, 1)), 'K', "K"))
{
if (INTVAL (XEXP((op0), 1)) < 0)
return CCANmode;
}
}
+/* Return nonzero if OP is a valid comparison operator
+ for an ALC condition in mode MODE. */
+
+int
+s390_alc_comparison (rtx op, enum machine_mode mode)
+{
+ if (mode != VOIDmode && mode != GET_MODE (op))
+ return 0;
+
+ if (!COMPARISON_P (op))
+ return 0;
+
+ if (GET_CODE (XEXP (op, 0)) != REG
+ || REGNO (XEXP (op, 0)) != CC_REGNUM
+ || XEXP (op, 1) != const0_rtx)
+ return 0;
+
+ switch (GET_MODE (XEXP (op, 0)))
+ {
+ case CCL1mode:
+ return GET_CODE (op) == LTU;
+
+ case CCL2mode:
+ return GET_CODE (op) == LEU;
+
+ case CCUmode:
+ return GET_CODE (op) == GTU;
+
+ case CCURmode:
+ return GET_CODE (op) == LTU;
+
+ case CCSmode:
+ return GET_CODE (op) == UNGT;
+
+ case CCSRmode:
+ return GET_CODE (op) == UNLT;
+
+ default:
+ return 0;
+ }
+}
+
+/* Return nonzero if OP is a valid comparison operator
+ for an SLB condition in mode MODE. */
+
+int
+s390_slb_comparison (rtx op, enum machine_mode mode)
+{
+ if (mode != VOIDmode && mode != GET_MODE (op))
+ return 0;
+
+ if (!COMPARISON_P (op))
+ return 0;
+
+ if (GET_CODE (XEXP (op, 0)) != REG
+ || REGNO (XEXP (op, 0)) != CC_REGNUM
+ || XEXP (op, 1) != const0_rtx)
+ return 0;
+
+ switch (GET_MODE (XEXP (op, 0)))
+ {
+ case CCL1mode:
+ return GET_CODE (op) == GEU;
+
+ case CCL2mode:
+ return GET_CODE (op) == GTU;
+
+ case CCUmode:
+ return GET_CODE (op) == LEU;
+
+ case CCURmode:
+ return GET_CODE (op) == GEU;
+
+ case CCSmode:
+ return GET_CODE (op) == LE;
+
+ case CCSRmode:
+ return GET_CODE (op) == GE;
+
+ default:
+ return 0;
+ }
+}
+
/* Return branch condition mask to implement a branch
specified by CODE. */
static int
-s390_branch_condition_mask (code)
- rtx code;
+s390_branch_condition_mask (rtx code)
{
const int CC0 = 1 << 3;
const int CC1 = 1 << 2;
for the corresponding inverted branch. */
static const char *
-s390_branch_condition_mnemonic (code, inv)
- rtx code;
- int inv;
+s390_branch_condition_mnemonic (rtx code, int inv)
{
static const char *const mnemonic[16] =
{
return mnemonic[mask];
}
-/* If OP is an integer constant of mode MODE with exactly one
- HImode subpart unequal to DEF, return the number of that
- subpart. As a special case, all HImode subparts of OP are
- equal to DEF, return zero. Otherwise, return -1. */
+/* Return the part of op which has a value different from def.
+ The size of the part is determined by mode.
+ Use this function only if you already know that op really
+ contains such a part. */
-int
-s390_single_hi (op, mode, def)
- rtx op;
- enum machine_mode mode;
- int def;
+unsigned HOST_WIDE_INT
+s390_extract_part (rtx op, enum machine_mode mode, int def)
{
- if (GET_CODE (op) == CONST_INT)
- {
- unsigned HOST_WIDE_INT value = 0;
- int n_parts = GET_MODE_SIZE (mode) / 2;
- int i, part = -1;
-
- for (i = 0; i < n_parts; i++)
- {
- if (i == 0)
- value = (unsigned HOST_WIDE_INT) INTVAL (op);
- else
- value >>= 16;
-
- if ((value & 0xffff) != (unsigned)(def & 0xffff))
- {
- if (part != -1)
- return -1;
- else
- part = i;
- }
- }
-
- return part == -1 ? 0 : (n_parts - 1 - part);
- }
-
- else if (GET_CODE (op) == CONST_DOUBLE
- && GET_MODE (op) == VOIDmode)
- {
- unsigned HOST_WIDE_INT value = 0;
- int n_parts = GET_MODE_SIZE (mode) / 2;
- int i, part = -1;
-
- for (i = 0; i < n_parts; i++)
- {
- if (i == 0)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (op);
- else if (i == HOST_BITS_PER_WIDE_INT / 16)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (op);
- else
- value >>= 16;
-
- if ((value & 0xffff) != (unsigned)(def & 0xffff))
- {
- if (part != -1)
- return -1;
- else
- part = i;
- }
- }
-
- return part == -1 ? 0 : (n_parts - 1 - part);
- }
-
- return -1;
-}
-
-/* Extract the HImode part number PART from integer
- constant OP of mode MODE. */
-
-int
-s390_extract_hi (op, mode, part)
- rtx op;
- enum machine_mode mode;
- int part;
-{
- int n_parts = GET_MODE_SIZE (mode) / 2;
- if (part < 0 || part >= n_parts)
- abort();
- else
- part = n_parts - 1 - part;
-
- if (GET_CODE (op) == CONST_INT)
- {
- unsigned HOST_WIDE_INT value = (unsigned HOST_WIDE_INT) INTVAL (op);
- return ((value >> (16 * part)) & 0xffff);
- }
- else if (GET_CODE (op) == CONST_DOUBLE
- && GET_MODE (op) == VOIDmode)
+ unsigned HOST_WIDE_INT value = 0;
+ int max_parts = HOST_BITS_PER_WIDE_INT / GET_MODE_BITSIZE (mode);
+ int part_bits = GET_MODE_BITSIZE (mode);
+ unsigned HOST_WIDE_INT part_mask = (1 << part_bits) - 1;
+ int i;
+
+ for (i = 0; i < max_parts; i++)
{
- unsigned HOST_WIDE_INT value;
- if (part < HOST_BITS_PER_WIDE_INT / 16)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (op);
+ if (i == 0)
+ value = (unsigned HOST_WIDE_INT) INTVAL (op);
else
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (op),
- part -= HOST_BITS_PER_WIDE_INT / 16;
-
- return ((value >> (16 * part)) & 0xffff);
+ value >>= part_bits;
+
+ if ((value & part_mask) != (def & part_mask))
+ return value & part_mask;
}
-
+
abort ();
}
/* If OP is an integer constant of mode MODE with exactly one
- QImode subpart unequal to DEF, return the number of that
- subpart. As a special case, all QImode subparts of OP are
- equal to DEF, return zero. Otherwise, return -1. */
-
-int
-s390_single_qi (op, mode, def)
- rtx op;
- enum machine_mode mode;
- int def;
-{
- if (GET_CODE (op) == CONST_INT)
- {
- unsigned HOST_WIDE_INT value = 0;
- int n_parts = GET_MODE_SIZE (mode);
- int i, part = -1;
-
- for (i = 0; i < n_parts; i++)
- {
- if (i == 0)
- value = (unsigned HOST_WIDE_INT) INTVAL (op);
- else
- value >>= 8;
-
- if ((value & 0xff) != (unsigned)(def & 0xff))
- {
- if (part != -1)
- return -1;
- else
- part = i;
- }
- }
-
- return part == -1 ? 0 : (n_parts - 1 - part);
- }
-
- else if (GET_CODE (op) == CONST_DOUBLE
- && GET_MODE (op) == VOIDmode)
- {
- unsigned HOST_WIDE_INT value = 0;
- int n_parts = GET_MODE_SIZE (mode);
- int i, part = -1;
-
- for (i = 0; i < n_parts; i++)
- {
- if (i == 0)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (op);
- else if (i == HOST_BITS_PER_WIDE_INT / 8)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (op);
- else
- value >>= 8;
-
- if ((value & 0xff) != (unsigned)(def & 0xff))
- {
- if (part != -1)
- return -1;
- else
- part = i;
- }
- }
-
- return part == -1 ? 0 : (n_parts - 1 - part);
- }
-
- return -1;
-}
-
-/* Extract the QImode part number PART from integer
- constant OP of mode MODE. */
+ part of mode PART_MODE unequal to DEF, return the number of that
+ part. Otherwise, return -1. */
int
-s390_extract_qi (op, mode, part)
- rtx op;
- enum machine_mode mode;
- int part;
-{
- int n_parts = GET_MODE_SIZE (mode);
- if (part < 0 || part >= n_parts)
- abort();
- else
- part = n_parts - 1 - part;
-
- if (GET_CODE (op) == CONST_INT)
- {
- unsigned HOST_WIDE_INT value = (unsigned HOST_WIDE_INT) INTVAL (op);
- return ((value >> (8 * part)) & 0xff);
- }
- else if (GET_CODE (op) == CONST_DOUBLE
- && GET_MODE (op) == VOIDmode)
- {
- unsigned HOST_WIDE_INT value;
- if (part < HOST_BITS_PER_WIDE_INT / 8)
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (op);
+s390_single_part (rtx op,
+ enum machine_mode mode,
+ enum machine_mode part_mode,
+ int def)
+{
+ unsigned HOST_WIDE_INT value = 0;
+ int n_parts = GET_MODE_SIZE (mode) / GET_MODE_SIZE (part_mode);
+ unsigned HOST_WIDE_INT part_mask = (1 << GET_MODE_BITSIZE (part_mode)) - 1;
+ int i, part = -1;
+
+ if (GET_CODE (op) != CONST_INT)
+ return -1;
+
+ for (i = 0; i < n_parts; i++)
+ {
+ if (i == 0)
+ value = (unsigned HOST_WIDE_INT) INTVAL (op);
else
- value = (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (op),
- part -= HOST_BITS_PER_WIDE_INT / 8;
-
- return ((value >> (8 * part)) & 0xff);
+ value >>= GET_MODE_BITSIZE (part_mode);
+
+ if ((value & part_mask) != (def & part_mask))
+ {
+ if (part != -1)
+ return -1;
+ else
+ part = i;
+ }
}
-
- abort ();
+ return part == -1 ? -1 : n_parts - 1 - part;
}
/* Check whether we can (and want to) split a double-word
moves, moving the subword FIRST_SUBWORD first. */
bool
-s390_split_ok_p (dst, src, mode, first_subword)
- rtx dst;
- rtx src;
- enum machine_mode mode;
- int first_subword;
+s390_split_ok_p (rtx dst, rtx src, enum machine_mode mode, int first_subword)
{
/* Floating point registers cannot be split. */
if (FP_REG_P (src) || FP_REG_P (dst))
SIZE is nonzero if `-Os' is specified and zero otherwise. */
void
-optimization_options (level, size)
- int level ATTRIBUTE_UNUSED;
- int size ATTRIBUTE_UNUSED;
+optimization_options (int level ATTRIBUTE_UNUSED, int size ATTRIBUTE_UNUSED)
{
/* ??? There are apparently still problems with -fcaller-saves. */
flag_caller_saves = 0;
}
void
-override_options ()
+override_options (void)
{
int i;
static struct pta
/* Return attribute type of insn. */
static enum attr_type
-s390_safe_attr_type (insn)
- rtx insn;
+s390_safe_attr_type (rtx insn)
{
if (recog_memoized (insn) >= 0)
return get_attr_type (insn);
MODE is the current operation mode. */
int
-const0_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+const0_operand (register rtx op, enum machine_mode mode)
{
return op == CONST0_RTX (mode);
}
MODE is the current operation mode. */
int
-consttable_operand (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+consttable_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return CONSTANT_P (op);
}
If MODE is set to VOIDmode, set it to the mode of OP. */
static int
-check_mode (op, mode)
- register rtx op;
- enum machine_mode *mode;
+check_mode (register rtx op, enum machine_mode *mode)
{
if (*mode == VOIDmode)
*mode = GET_MODE (op);
MODE is the current operation mode. */
int
-larl_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+larl_operand (register rtx op, enum machine_mode mode)
{
if (! check_mode (op, &mode))
return 0;
be accepted or not. */
static int
-general_s_operand (op, mode, allow_immediate)
- register rtx op;
- enum machine_mode mode;
- int allow_immediate;
+general_s_operand (register rtx op, enum machine_mode mode,
+ int allow_immediate)
{
struct s390_address addr;
switch (GET_CODE (op))
{
- /* Constants that we are sure will be forced to the
- literal pool in reload are OK as s-operand. Note
- that we cannot call s390_preferred_reload_class here
- because it might not be known yet at this point
- whether the current function is a leaf or not. */
+ /* Constants are OK as s-operand if ALLOW_IMMEDIATE
+ is true and we are still before reload. */
case CONST_INT:
case CONST_DOUBLE:
if (!allow_immediate || reload_completed)
- break;
- if (!legitimate_reload_constant_p (op))
- return 1;
- if (!TARGET_64BIT)
- return 1;
- break;
+ return 0;
+ return 1;
/* Memory operands are OK unless they already use an
index register. */
case MEM:
if (GET_CODE (XEXP (op, 0)) == ADDRESSOF)
return 1;
- if (s390_decompose_address (XEXP (op, 0), &addr)
- && !addr.indx)
- return 1;
- break;
+ if (!s390_decompose_address (XEXP (op, 0), &addr))
+ return 0;
+ if (addr.indx)
+ return 0;
+ /* Do not allow literal pool references unless ALLOW_IMMEDIATE
+ is true. This prevents compares between two literal pool
+ entries from being accepted. */
+ if (!allow_immediate
+ && addr.base && REGNO (addr.base) == BASE_REGISTER)
+ return 0;
+ return 1;
default:
break;
MODE is the current operation mode. */
int
-s_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+s_operand (register rtx op, enum machine_mode mode)
{
return general_s_operand (op, mode, 0);
}
MODE is the current operation mode. */
int
-s_imm_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+s_imm_operand (register rtx op, enum machine_mode mode)
{
return general_s_operand (op, mode, 1);
}
+/* Return true if OP a valid shift count operand.
+ OP is the current operation.
+ MODE is the current operation mode. */
+
+int
+shift_count_operand (rtx op, enum machine_mode mode)
+{
+ HOST_WIDE_INT offset = 0;
+
+ if (! check_mode (op, &mode))
+ return 0;
+
+ /* We can have an integer constant, an address register,
+ or a sum of the two. Note that reload already checks
+ that any register present is an address register, so
+ we just check for any register here. */
+ if (GET_CODE (op) == CONST_INT)
+ {
+ offset = INTVAL (op);
+ op = NULL_RTX;
+ }
+ if (op && GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT)
+ {
+ offset = INTVAL (XEXP (op, 1));
+ op = XEXP (op, 0);
+ }
+ while (op && GET_CODE (op) == SUBREG)
+ op = SUBREG_REG (op);
+ if (op && GET_CODE (op) != REG)
+ return 0;
+
+ /* Unfortunately we have to reject constants that are invalid
+ for an address, or else reload will get confused. */
+ if (!DISP_IN_RANGE (offset))
+ return 0;
+
+ return 1;
+}
+
/* Return true if DISP is a valid short displacement. */
static int
-s390_short_displacement (disp)
- rtx disp;
+s390_short_displacement (rtx disp)
{
/* No displacement is OK. */
if (!disp)
/* Return true if OP is a valid operand for a C constraint. */
int
-s390_extra_constraint (op, c)
- rtx op;
- int c;
+s390_extra_constraint_str (rtx op, int c, const char * str)
{
struct s390_address addr;
+ if (c != str[0])
+ abort ();
+
switch (c)
{
case 'Q':
return 0;
break;
+ case 'Y':
+ return shift_count_operand (op, VOIDmode);
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Return true if VALUE matches the constraint STR. */
+
+int
+s390_const_ok_for_constraint_p (HOST_WIDE_INT value,
+ int c,
+ const char * str)
+{
+ enum machine_mode mode, part_mode;
+ int def;
+ unsigned char part;
+
+ if (c != str[0])
+ abort ();
+
+ switch (str[0])
+ {
+ case 'I':
+ return (unsigned int)value < 256;
+
+ case 'J':
+ return (unsigned int)value < 4096;
+
+ case 'K':
+ return value >= -32768 && value < 32768;
+
+ case 'L':
+ return (TARGET_LONG_DISPLACEMENT ?
+ (value >= -524288 && value <= 524287)
+ : (value >= 0 && value <= 4095));
+ case 'M':
+ return value == 2147483647;
+
+ case 'N':
+ part = str[1] - '0';
+
+ switch (str[2])
+ {
+ case 'H': part_mode = HImode; break;
+ case 'Q': part_mode = QImode; break;
+ default: return 0;
+ }
+
+ switch (str[3])
+ {
+ case 'H': mode = HImode; break;
+ case 'S': mode = SImode; break;
+ case 'D': mode = DImode; break;
+ default: return 0;
+ }
+
+ switch (str[4])
+ {
+ case '0': def = 0; break;
+ case 'F': def = -1; break;
+ default: return 0;
+ }
+
+ if (GET_MODE_SIZE (mode) <= GET_MODE_SIZE (part_mode))
+ return 0;
+
+ if (s390_single_part (GEN_INT (value), mode, part_mode, def) != part)
+ return 0;
+
+ break;
+
default:
return 0;
}
scanned. In either case, *TOTAL contains the cost result. */
static bool
-s390_rtx_costs (x, code, outer_code, total)
- rtx x;
- int code, outer_code;
- int *total;
+s390_rtx_costs (rtx x, int code, int outer_code, int *total)
{
switch (code)
{
/* Return the cost of an address rtx ADDR. */
static int
-s390_address_cost (addr)
- rtx addr;
+s390_address_cost (rtx addr)
{
struct s390_address ad;
if (!s390_decompose_address (addr, &ad))
MODE is the current operation mode. */
int
-bras_sym_operand (op, mode)
- register rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+bras_sym_operand (register rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
register enum rtx_code code = GET_CODE (op);
otherwise return 0. */
int
-tls_symbolic_operand (op)
- register rtx op;
+tls_symbolic_operand (register rtx op)
{
if (GET_CODE (op) != SYMBOL_REF)
return 0;
MODE is the current operation mode. */
int
-load_multiple_operation (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+load_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
+ enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int dest_regno;
rtx src_addr;
dest_regno = REGNO (SET_DEST (XVECEXP (op, 0, 0)));
src_addr = XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0);
+ elt_mode = GET_MODE (SET_DEST (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (elt) != SET
|| GET_CODE (SET_DEST (elt)) != REG
- || GET_MODE (SET_DEST (elt)) != Pmode
+ || GET_MODE (SET_DEST (elt)) != elt_mode
|| REGNO (SET_DEST (elt)) != dest_regno + i
|| GET_CODE (SET_SRC (elt)) != MEM
- || GET_MODE (SET_SRC (elt)) != Pmode
+ || GET_MODE (SET_SRC (elt)) != elt_mode
|| GET_CODE (XEXP (SET_SRC (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_SRC (elt), 0), 0), src_addr)
|| GET_CODE (XEXP (XEXP (SET_SRC (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_SRC (elt), 0), 1))
- != off + i * UNITS_PER_WORD)
+ != off + i * GET_MODE_SIZE (elt_mode))
return 0;
}
MODE is the current operation mode. */
int
-store_multiple_operation (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+store_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
+ enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int src_regno;
rtx dest_addr;
src_regno = REGNO (SET_SRC (XVECEXP (op, 0, 0)));
dest_addr = XEXP (SET_DEST (XVECEXP (op, 0, 0)), 0);
+ elt_mode = GET_MODE (SET_SRC (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (elt) != SET
|| GET_CODE (SET_SRC (elt)) != REG
- || GET_MODE (SET_SRC (elt)) != Pmode
+ || GET_MODE (SET_SRC (elt)) != elt_mode
|| REGNO (SET_SRC (elt)) != src_regno + i
|| GET_CODE (SET_DEST (elt)) != MEM
- || GET_MODE (SET_DEST (elt)) != Pmode
+ || GET_MODE (SET_DEST (elt)) != elt_mode
|| GET_CODE (XEXP (SET_DEST (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_DEST (elt), 0), 0), dest_addr)
|| GET_CODE (XEXP (XEXP (SET_DEST (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_DEST (elt), 0), 1))
- != off + i * UNITS_PER_WORD)
+ != off + i * GET_MODE_SIZE (elt_mode))
return 0;
}
return 1;
/* Return true if OP contains a symbol reference */
int
-symbolic_reference_mentioned_p (op)
- rtx op;
+symbolic_reference_mentioned_p (rtx op)
{
register const char *fmt;
register int i;
/* Return true if OP contains a reference to a thread-local symbol. */
int
-tls_symbolic_reference_mentioned_p (op)
- rtx op;
+tls_symbolic_reference_mentioned_p (rtx op)
{
register const char *fmt;
register int i;
and that OP satisfies CONSTANT_P or is a CONST_DOUBLE. */
int
-legitimate_pic_operand_p (op)
- register rtx op;
+legitimate_pic_operand_p (register rtx op)
{
/* Accept all non-symbolic constants. */
if (!SYMBOLIC_CONST (op))
It is given that OP satisfies CONSTANT_P or is a CONST_DOUBLE. */
int
-legitimate_constant_p (op)
- register rtx op;
+legitimate_constant_p (register rtx op)
{
/* Accept all non-symbolic constants. */
if (!SYMBOLIC_CONST (op))
return 1;
/* Accept immediate LARL operands. */
- if (TARGET_64BIT && larl_operand (op, VOIDmode))
+ if (TARGET_CPU_ZARCH && larl_operand (op, VOIDmode))
return 1;
/* Thread-local symbols are never legal constants. This is
not constant (TLS) or not known at final link time (PIC). */
static bool
-s390_cannot_force_const_mem (x)
- rtx x;
+s390_cannot_force_const_mem (rtx x)
{
switch (GET_CODE (x))
{
before it can be used as operand. */
int
-legitimate_reload_constant_p (op)
- register rtx op;
+legitimate_reload_constant_p (register rtx op)
{
/* Accept la(y) operands. */
if (GET_CODE (op) == CONST_INT
/* Accept l(g)hi operands. */
if (GET_CODE (op) == CONST_INT
- && CONST_OK_FOR_LETTER_P (INTVAL (op), 'K'))
+ && CONST_OK_FOR_CONSTRAINT_P (INTVAL (op), 'K', "K"))
return 1;
/* Accept lliXX operands. */
- if (TARGET_64BIT
- && s390_single_hi (op, DImode, 0) >= 0)
+ if (TARGET_ZARCH
+ && s390_single_part (op, DImode, HImode, 0) >= 0)
return 1;
/* Accept larl operands. */
- if (TARGET_64BIT
+ if (TARGET_CPU_ZARCH
&& larl_operand (op, VOIDmode))
return 1;
return the class of reg to actually use. */
enum reg_class
-s390_preferred_reload_class (op, class)
- rtx op;
- enum reg_class class;
+s390_preferred_reload_class (rtx op, enum reg_class class)
{
/* This can happen if a floating point constant is being
reloaded into an integer register. Leave well alone. */
is not a legitimate operand of the LOAD ADDRESS instruction. */
enum reg_class
-s390_secondary_input_reload_class (class, mode, in)
- enum reg_class class ATTRIBUTE_UNUSED;
- enum machine_mode mode;
- rtx in;
+s390_secondary_input_reload_class (enum reg_class class ATTRIBUTE_UNUSED,
+ enum machine_mode mode, rtx in)
{
if (s390_plus_operand (in, mode))
return ADDR_REGS;
non-offsettable memory address. */
enum reg_class
-s390_secondary_output_reload_class (class, mode, out)
- enum reg_class class;
- enum machine_mode mode;
- rtx out;
+s390_secondary_output_reload_class (enum reg_class class,
+ enum machine_mode mode, rtx out)
{
if ((TARGET_64BIT ? mode == TImode
: (mode == DImode || mode == DFmode))
MODE is the current operation mode. */
int
-s390_plus_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+s390_plus_operand (register rtx op, enum machine_mode mode)
{
if (!check_mode (op, &mode) || mode != Pmode)
return FALSE;
SCRATCH may be used as scratch register. */
void
-s390_expand_plus_operand (target, src, scratch)
- register rtx target;
- register rtx src;
- register rtx scratch;
+s390_expand_plus_operand (register rtx target, register rtx src,
+ register rtx scratch)
{
rtx sum1, sum2;
struct s390_address ad;
canonical form so that they will be recognized. */
static int
-s390_decompose_address (addr, out)
- register rtx addr;
- struct s390_address *out;
+s390_decompose_address (register rtx addr, struct s390_address *out)
{
rtx base = NULL_RTX;
rtx indx = NULL_RTX;
&& frame_pointer_needed
&& REGNO (base) == HARD_FRAME_POINTER_REGNUM)
|| REGNO (base) == ARG_POINTER_REGNUM
- || (REGNO (base) >= FIRST_VIRTUAL_REGISTER
- && REGNO (base) <= LAST_VIRTUAL_REGISTER)
|| (flag_pic
&& REGNO (base) == PIC_OFFSET_TABLE_REGNUM))
pointer = base_ptr = TRUE;
&& frame_pointer_needed
&& REGNO (indx) == HARD_FRAME_POINTER_REGNUM)
|| REGNO (indx) == ARG_POINTER_REGNUM
- || (REGNO (indx) >= FIRST_VIRTUAL_REGISTER
- && REGNO (indx) <= LAST_VIRTUAL_REGISTER)
|| (flag_pic
&& REGNO (indx) == PIC_OFFSET_TABLE_REGNUM))
pointer = indx_ptr = TRUE;
STRICT specifies whether strict register checking applies. */
int
-legitimate_address_p (mode, addr, strict)
- enum machine_mode mode ATTRIBUTE_UNUSED;
- register rtx addr;
- int strict;
+legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
+ register rtx addr, int strict)
{
struct s390_address ad;
if (!s390_decompose_address (addr, &ad))
address, as LA performs only a 31-bit addition. */
int
-legitimate_la_operand_p (op)
- register rtx op;
+legitimate_la_operand_p (register rtx op)
{
struct s390_address addr;
if (!s390_decompose_address (op, &addr))
and we prefer to use LA over addition to compute it. */
int
-preferred_la_operand_p (op)
- register rtx op;
+preferred_la_operand_p (register rtx op)
{
struct s390_address addr;
if (!s390_decompose_address (op, &addr))
where legitimate_la_operand_p (SRC) returns false. */
void
-s390_load_address (dst, src)
- rtx dst;
- rtx src;
+s390_load_address (rtx dst, rtx src)
{
if (TARGET_64BIT)
emit_move_insn (dst, src);
reg also appears in the address. */
rtx
-legitimize_pic_address (orig, reg)
- rtx orig;
- rtx reg;
+legitimize_pic_address (rtx orig, rtx reg)
{
rtx addr = orig;
rtx new = orig;
|| (GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (addr)))
{
/* This is a local symbol. */
- if (TARGET_64BIT && larl_operand (addr, VOIDmode))
+ if (TARGET_CPU_ZARCH && larl_operand (addr, VOIDmode))
{
/* Access local symbols PC-relative via LARL.
This is the same as in the non-PIC case, so it is
emit_move_insn (reg, new);
new = reg;
}
- else if (TARGET_64BIT)
+ else if (TARGET_CPU_ZARCH)
{
/* If the GOT offset might be >= 4k, we determine the position
of the GOT entry via a PC-relative LARL (@GOTENT). */
/* @PLT is OK as is on 64-bit, must be converted to
GOT-relative @PLTOFF on 31-bit. */
case UNSPEC_PLT:
- if (!TARGET_64BIT)
+ if (!TARGET_CPU_ZARCH)
{
rtx temp = reg? reg : gen_reg_rtx (Pmode);
|| (GET_CODE (op0) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (op0)))
&& GET_CODE (op1) == CONST_INT)
{
- if (TARGET_64BIT && larl_operand (op0, VOIDmode))
+ if (TARGET_CPU_ZARCH && larl_operand (op0, VOIDmode))
{
if (INTVAL (op1) & 1)
{
int even = INTVAL (op1) - 1;
op0 = gen_rtx_PLUS (Pmode, op0, GEN_INT (even));
op0 = gen_rtx_CONST (Pmode, op0);
- op1 = GEN_INT (1);
+ op1 = const1_rtx;
}
emit_move_insn (temp, op0);
addr = gen_rtx_PLUS (Pmode, addr, op1);
addr = gen_rtx_CONST (Pmode, addr);
addr = force_const_mem (Pmode, addr);
- emit_move_insn (temp, addr);
+ emit_move_insn (temp, addr);
new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, temp);
if (reg != 0)
/* Load the thread pointer into a register. */
static rtx
-get_thread_pointer ()
+get_thread_pointer (void)
{
rtx tp;
static GTY(()) rtx s390_tls_symbol;
rtx
-s390_tls_get_offset ()
+s390_tls_get_offset (void)
{
if (!s390_tls_symbol)
s390_tls_symbol = gen_rtx_SYMBOL_REF (Pmode, "__tls_get_offset");
this (thread-local) address. REG may be used as temporary. */
static rtx
-legitimize_tls_address (addr, reg)
- rtx addr;
- rtx reg;
+legitimize_tls_address (rtx addr, rtx reg)
{
rtx new, tls_call, temp, base, r2, insn;
temp = gen_reg_rtx (Pmode);
emit_move_insn (temp, new);
}
- else if (TARGET_64BIT)
+ else if (TARGET_CPU_ZARCH)
{
/* If the GOT offset might be >= 4k, we determine the position
of the GOT entry via a PC-relative LARL. */
switch (XINT (XEXP (addr, 0), 1))
{
case UNSPEC_INDNTPOFF:
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
new = addr;
else
abort ();
/* Emit insns to move operands[1] into operands[0]. */
void
-emit_symbolic_move (operands)
- rtx *operands;
+emit_symbolic_move (rtx *operands)
{
rtx temp = no_new_pseudos ? operands[0] : gen_reg_rtx (Pmode);
See comments by legitimize_pic_address for details. */
rtx
-legitimize_address (x, oldx, mode)
- register rtx x;
- register rtx oldx ATTRIBUTE_UNUSED;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+legitimize_address (register rtx x, register rtx oldx ATTRIBUTE_UNUSED,
+ enum machine_mode mode ATTRIBUTE_UNUSED)
{
rtx constant_term = const0_rtx;
/* Emit code to move LEN bytes from DST to SRC. */
void
-s390_expand_movstr (dst, src, len)
- rtx dst;
- rtx src;
- rtx len;
+s390_expand_movstr (rtx dst, rtx src, rtx len)
{
- rtx (*gen_short) PARAMS ((rtx, rtx, rtx)) =
- TARGET_64BIT ? gen_movstr_short_64 : gen_movstr_short_31;
- rtx (*gen_long) PARAMS ((rtx, rtx, rtx, rtx)) =
- TARGET_64BIT ? gen_movstr_long_64 : gen_movstr_long_31;
-
-
if (GET_CODE (len) == CONST_INT && INTVAL (len) >= 0 && INTVAL (len) <= 256)
{
if (INTVAL (len) > 0)
- emit_insn ((*gen_short) (dst, src, GEN_INT (INTVAL (len) - 1)));
+ emit_insn (gen_movstr_short (dst, src, GEN_INT (INTVAL (len) - 1)));
}
else if (TARGET_MVCLE)
{
- enum machine_mode double_mode = TARGET_64BIT ? TImode : DImode;
- enum machine_mode single_mode = TARGET_64BIT ? DImode : SImode;
- rtx reg0 = gen_reg_rtx (double_mode);
- rtx reg1 = gen_reg_rtx (double_mode);
-
- emit_move_insn (gen_highpart (single_mode, reg0),
- force_operand (XEXP (dst, 0), NULL_RTX));
- emit_move_insn (gen_highpart (single_mode, reg1),
- force_operand (XEXP (src, 0), NULL_RTX));
-
- convert_move (gen_lowpart (single_mode, reg0), len, 1);
- convert_move (gen_lowpart (single_mode, reg1), len, 1);
-
- emit_insn ((*gen_long) (reg0, reg1, reg0, reg1));
+ emit_insn (gen_movstr_long (dst, src, convert_to_mode (Pmode, len, 1)));
}
else
mode = GET_MODE (len);
if (mode == VOIDmode)
- mode = word_mode;
+ mode = Pmode;
- type = (*lang_hooks.types.type_for_mode) (mode, 1);
+ type = lang_hooks.types.type_for_mode (mode, 1);
if (!type)
abort ();
make_tree (type, blocks),
make_tree (type, const0_rtx)));
- emit_insn ((*gen_short) (dst, src, GEN_INT (255)));
+ emit_insn (gen_movstr_short (dst, src, GEN_INT (255)));
s390_load_address (dst_addr,
gen_rtx_PLUS (Pmode, dst_addr, GEN_INT (256)));
s390_load_address (src_addr,
expand_end_loop ();
- emit_insn ((*gen_short) (dst, src, convert_to_mode (word_mode, count, 1)));
+ emit_insn (gen_movstr_short (dst, src,
+ convert_to_mode (Pmode, count, 1)));
emit_label (end_label);
}
}
/* Emit code to clear LEN bytes at DST. */
void
-s390_expand_clrstr (dst, len)
- rtx dst;
- rtx len;
+s390_expand_clrstr (rtx dst, rtx len)
{
- rtx (*gen_short) PARAMS ((rtx, rtx)) =
- TARGET_64BIT ? gen_clrstr_short_64 : gen_clrstr_short_31;
- rtx (*gen_long) PARAMS ((rtx, rtx, rtx)) =
- TARGET_64BIT ? gen_clrstr_long_64 : gen_clrstr_long_31;
-
-
if (GET_CODE (len) == CONST_INT && INTVAL (len) >= 0 && INTVAL (len) <= 256)
{
if (INTVAL (len) > 0)
- emit_insn ((*gen_short) (dst, GEN_INT (INTVAL (len) - 1)));
+ emit_insn (gen_clrstr_short (dst, GEN_INT (INTVAL (len) - 1)));
}
else if (TARGET_MVCLE)
{
- enum machine_mode double_mode = TARGET_64BIT ? TImode : DImode;
- enum machine_mode single_mode = TARGET_64BIT ? DImode : SImode;
- rtx reg0 = gen_reg_rtx (double_mode);
- rtx reg1 = gen_reg_rtx (double_mode);
-
- emit_move_insn (gen_highpart (single_mode, reg0),
- force_operand (XEXP (dst, 0), NULL_RTX));
- convert_move (gen_lowpart (single_mode, reg0), len, 1);
-
- emit_move_insn (gen_highpart (single_mode, reg1), const0_rtx);
- emit_move_insn (gen_lowpart (single_mode, reg1), const0_rtx);
-
- emit_insn ((*gen_long) (reg0, reg1, reg0));
+ emit_insn (gen_clrstr_long (dst, convert_to_mode (Pmode, len, 1)));
}
else
mode = GET_MODE (len);
if (mode == VOIDmode)
- mode = word_mode;
+ mode = Pmode;
- type = (*lang_hooks.types.type_for_mode) (mode, 1);
+ type = lang_hooks.types.type_for_mode (mode, 1);
if (!type)
abort ();
make_tree (type, blocks),
make_tree (type, const0_rtx)));
- emit_insn ((*gen_short) (dst, GEN_INT (255)));
+ emit_insn (gen_clrstr_short (dst, GEN_INT (255)));
s390_load_address (dst_addr,
gen_rtx_PLUS (Pmode, dst_addr, GEN_INT (256)));
expand_end_loop ();
- emit_insn ((*gen_short) (dst, convert_to_mode (word_mode, count, 1)));
+ emit_insn (gen_clrstr_short (dst, convert_to_mode (Pmode, count, 1)));
emit_label (end_label);
}
}
and return the result in TARGET. */
void
-s390_expand_cmpmem (target, op0, op1, len)
- rtx target;
- rtx op0;
- rtx op1;
- rtx len;
-{
- rtx (*gen_short) PARAMS ((rtx, rtx, rtx)) =
- TARGET_64BIT ? gen_cmpmem_short_64 : gen_cmpmem_short_31;
- rtx (*gen_long) PARAMS ((rtx, rtx, rtx, rtx)) =
- TARGET_64BIT ? gen_cmpmem_long_64 : gen_cmpmem_long_31;
- rtx (*gen_result) PARAMS ((rtx)) =
+s390_expand_cmpmem (rtx target, rtx op0, rtx op1, rtx len)
+{
+ rtx (*gen_result) (rtx) =
GET_MODE (target) == DImode ? gen_cmpint_di : gen_cmpint_si;
op0 = protect_from_queue (op0, 0);
{
if (INTVAL (len) > 0)
{
- emit_insn ((*gen_short) (op0, op1, GEN_INT (INTVAL (len) - 1)));
- emit_insn ((*gen_result) (target));
+ emit_insn (gen_cmpmem_short (op0, op1, GEN_INT (INTVAL (len) - 1)));
+ emit_insn (gen_result (target));
}
else
emit_move_insn (target, const0_rtx);
else /* if (TARGET_MVCLE) */
{
- enum machine_mode double_mode = TARGET_64BIT ? TImode : DImode;
- enum machine_mode single_mode = TARGET_64BIT ? DImode : SImode;
- rtx reg0 = gen_reg_rtx (double_mode);
- rtx reg1 = gen_reg_rtx (double_mode);
-
- emit_move_insn (gen_highpart (single_mode, reg0),
- force_operand (XEXP (op0, 0), NULL_RTX));
- emit_move_insn (gen_highpart (single_mode, reg1),
- force_operand (XEXP (op1, 0), NULL_RTX));
-
- convert_move (gen_lowpart (single_mode, reg0), len, 1);
- convert_move (gen_lowpart (single_mode, reg1), len, 1);
-
- emit_insn ((*gen_long) (reg0, reg1, reg0, reg1));
- emit_insn ((*gen_result) (target));
+ emit_insn (gen_cmpmem_long (op0, op1, convert_to_mode (Pmode, len, 1)));
+ emit_insn (gen_result (target));
}
#if 0
mode = GET_MODE (len);
if (mode == VOIDmode)
- mode = word_mode;
+ mode = Pmode;
- type = (*lang_hooks.types.type_for_mode) (mode, 1);
+ type = lang_hooks.types.type_for_mode (mode, 1);
if (!type)
abort ();
make_tree (type, blocks),
make_tree (type, const0_rtx)));
- emit_insn ((*gen_short) (op0, op1, GEN_INT (255)));
+ emit_insn (gen_cmpmem_short (op0, op1, GEN_INT (255)));
temp = gen_rtx_NE (VOIDmode, gen_rtx_REG (CCSmode, 33), const0_rtx);
temp = gen_rtx_IF_THEN_ELSE (VOIDmode, temp,
gen_rtx_LABEL_REF (VOIDmode, end_label), pc_rtx);
expand_end_loop ();
- emit_insn ((*gen_short) (op0, op1, convert_to_mode (word_mode, count, 1)));
+ emit_insn (gen_cmpmem_short (op0, op1,
+ convert_to_mode (Pmode, count, 1)));
emit_label (end_label);
- emit_insn ((*gen_result) (target));
+ emit_insn (gen_result (target));
}
#endif
}
We need to emit DTP-relative relocations. */
void
-s390_output_dwarf_dtprel (file, size, x)
- FILE *file;
- int size;
- rtx x;
+s390_output_dwarf_dtprel (FILE *file, int size, rtx x)
{
switch (size)
{
and turn them back into a direct symbol reference. */
static rtx
-s390_delegitimize_address (orig_x)
- rtx orig_x;
+s390_delegitimize_address (rtx orig_x)
{
rtx x = orig_x, y;
return orig_x;
}
+/* Output shift count operand OP to stdio stream FILE. */
+
+static void
+print_shift_count_operand (FILE *file, rtx op)
+{
+ HOST_WIDE_INT offset = 0;
+
+ /* We can have an integer constant, an address register,
+ or a sum of the two. */
+ if (GET_CODE (op) == CONST_INT)
+ {
+ offset = INTVAL (op);
+ op = NULL_RTX;
+ }
+ if (op && GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT)
+ {
+ offset = INTVAL (XEXP (op, 1));
+ op = XEXP (op, 0);
+ }
+ while (op && GET_CODE (op) == SUBREG)
+ op = SUBREG_REG (op);
+
+ /* Sanity check. */
+ if (op && (GET_CODE (op) != REG
+ || REGNO (op) >= FIRST_PSEUDO_REGISTER
+ || REGNO_REG_CLASS (REGNO (op)) != ADDR_REGS))
+ abort ();
+
+ /* Shift counts are truncated to the low six bits anyway. */
+ fprintf (file, HOST_WIDE_INT_PRINT_DEC, offset & 63);
+ if (op)
+ fprintf (file, "(%s)", reg_names[REGNO (op)]);
+}
+
/* Locate some local-dynamic symbol still in use by this function
so that we can print its name in local-dynamic base patterns. */
static const char *
-get_some_local_dynamic_name ()
+get_some_local_dynamic_name (void)
{
rtx insn;
}
static int
-get_some_local_dynamic_name_1 (px, data)
- rtx *px;
- void *data ATTRIBUTE_UNUSED;
+get_some_local_dynamic_name_1 (rtx *px, void *data ATTRIBUTE_UNUSED)
{
rtx x = *px;
return 0;
}
-/* Output symbolic constant X in assembler syntax to
- stdio stream FILE. */
+/* Output machine-dependent UNSPECs occurring in address constant X
+ in assembler syntax to stdio stream FILE. Returns true if the
+ constant X could be recognized, false otherwise. */
-void
-s390_output_symbolic_const (file, x)
- FILE *file;
- rtx x;
+bool
+s390_output_addr_const_extra (FILE *file, rtx x)
{
- switch (GET_CODE (x))
- {
- case CONST:
- case ZERO_EXTEND:
- case SIGN_EXTEND:
- s390_output_symbolic_const (file, XEXP (x, 0));
- break;
-
- case PLUS:
- s390_output_symbolic_const (file, XEXP (x, 0));
- fprintf (file, "+");
- s390_output_symbolic_const (file, XEXP (x, 1));
- break;
-
- case MINUS:
- s390_output_symbolic_const (file, XEXP (x, 0));
- fprintf (file, "-");
- s390_output_symbolic_const (file, XEXP (x, 1));
- break;
-
- case CONST_INT:
- case LABEL_REF:
- case CODE_LABEL:
- case SYMBOL_REF:
- output_addr_const (file, x);
- break;
-
- case UNSPEC:
- if (XVECLEN (x, 0) != 1)
- output_operand_lossage ("invalid UNSPEC as operand (1)");
- switch (XINT (x, 1))
- {
- case UNSPEC_LTREL_OFFSET:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "-");
- s390_output_symbolic_const (file, cfun->machine->literal_pool_label);
- break;
- case UNSPEC_GOTENT:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@GOTENT");
- break;
- case UNSPEC_GOT:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@GOT");
- break;
- case UNSPEC_GOTOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@GOTOFF");
- break;
- case UNSPEC_PLT:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@PLT");
- break;
- case UNSPEC_PLTOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@PLTOFF");
- break;
- case UNSPEC_TLSGD:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@TLSGD");
- break;
- case UNSPEC_TLSLDM:
- assemble_name (file, get_some_local_dynamic_name ());
- fprintf (file, "@TLSLDM");
- break;
- case UNSPEC_DTPOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@DTPOFF");
- break;
- case UNSPEC_NTPOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@NTPOFF");
- break;
- case UNSPEC_GOTNTPOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@GOTNTPOFF");
- break;
- case UNSPEC_INDNTPOFF:
- s390_output_symbolic_const (file, XVECEXP (x, 0, 0));
- fprintf (file, "@INDNTPOFF");
- break;
- default:
- output_operand_lossage ("invalid UNSPEC as operand (2)");
- break;
- }
- break;
+ if (GET_CODE (x) == UNSPEC && XVECLEN (x, 0) == 1)
+ switch (XINT (x, 1))
+ {
+ case UNSPEC_GOTENT:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@GOTENT");
+ return true;
+ case UNSPEC_GOT:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@GOT");
+ return true;
+ case UNSPEC_GOTOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@GOTOFF");
+ return true;
+ case UNSPEC_PLT:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@PLT");
+ return true;
+ case UNSPEC_PLTOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@PLTOFF");
+ return true;
+ case UNSPEC_TLSGD:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@TLSGD");
+ return true;
+ case UNSPEC_TLSLDM:
+ assemble_name (file, get_some_local_dynamic_name ());
+ fprintf (file, "@TLSLDM");
+ return true;
+ case UNSPEC_DTPOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@DTPOFF");
+ return true;
+ case UNSPEC_NTPOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@NTPOFF");
+ return true;
+ case UNSPEC_GOTNTPOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@GOTNTPOFF");
+ return true;
+ case UNSPEC_INDNTPOFF:
+ output_addr_const (file, XVECEXP (x, 0, 0));
+ fprintf (file, "@INDNTPOFF");
+ return true;
+ }
- default:
- fatal_insn ("UNKNOWN in s390_output_symbolic_const !?", x);
- break;
- }
+ return false;
}
/* Output address operand ADDR in assembler syntax to
stdio stream FILE. */
void
-print_operand_address (file, addr)
- FILE *file;
- rtx addr;
+print_operand_address (FILE *file, rtx addr)
{
struct s390_address ad;
output_operand_lossage ("Cannot decompose address.");
if (ad.disp)
- s390_output_symbolic_const (file, ad.disp);
+ output_addr_const (file, ad.disp);
else
fprintf (file, "0");
'R': print only the base register of a memory reference.
'N': print the second word of a DImode operand.
'M': print the second word of a TImode operand.
+ 'Y': print shift count operand.
'b': print integer X as if it's an unsigned byte.
'x': print integer X as if it's an unsigned word.
- 'h': print integer X as if it's a signed word. */
+ 'h': print integer X as if it's a signed word.
+ 'i': print the first nonzero HImode part of X.
+ 'j': print the first HImode part unequal to 0xffff of X. */
void
-print_operand (file, x, code)
- FILE *file;
- rtx x;
- int code;
+print_operand (FILE *file, rtx x, int code)
{
switch (code)
{
abort ();
if (ad.disp)
- s390_output_symbolic_const (file, ad.disp);
+ output_addr_const (file, ad.disp);
else
fprintf (file, "0");
}
else
abort ();
break;
+
+ case 'Y':
+ print_shift_count_operand (file, x);
+ return;
}
switch (GET_CODE (x))
case CODE_LABEL:
case LABEL_REF:
case SYMBOL_REF:
- s390_output_symbolic_const (file, x);
+ output_addr_const (file, x);
break;
case CONST_INT:
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x) & 0xffff);
else if (code == 'h')
fprintf (file, HOST_WIDE_INT_PRINT_DEC, ((INTVAL (x) & 0xffff) ^ 0x8000) - 0x8000);
+ else if (code == 'i')
+ fprintf (file, HOST_WIDE_INT_PRINT_DEC,
+ s390_extract_part (x, HImode, 0));
+ else if (code == 'j')
+ fprintf (file, HOST_WIDE_INT_PRINT_DEC,
+ s390_extract_part (x, HImode, -1));
else
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x));
break;
handle values smaller than INT_MIN when printed in decimal. */
static bool
-s390_assemble_integer (x, size, aligned_p)
- rtx x;
- unsigned int size;
- int aligned_p;
+s390_assemble_integer (rtx x, unsigned int size, int aligned_p)
{
if (size == 8 && aligned_p
&& GET_CODE (x) == CONST_INT && INTVAL (x) < INT_MIN)
a memory address in expression X. */
static int
-reg_used_in_mem_p (regno, x)
- int regno;
- rtx x;
+reg_used_in_mem_p (int regno, rtx x)
{
enum rtx_code code = GET_CODE (x);
int i, j;
used by instruction INSN to address memory. */
static int
-addr_generation_dependency_p (dep_rtx, insn)
- rtx dep_rtx;
- rtx insn;
+addr_generation_dependency_p (rtx dep_rtx, rtx insn)
{
rtx target, pat;
/* Return 1, if dep_insn sets register used in insn in the agen unit. */
int
-s390_agen_dep_p(dep_insn, insn)
- rtx dep_insn;
- rtx insn;
+s390_agen_dep_p (rtx dep_insn, rtx insn)
{
rtx dep_rtx = PATTERN (dep_insn);
int i;
be used by introducing only a one cycle stall on the pipeline. */
static int
-s390_adjust_cost (insn, link, dep_insn, cost)
- rtx insn;
- rtx link;
- rtx dep_insn;
- int cost;
+s390_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost)
{
rtx dep_rtx;
int i;
in order to use the bypass. */
static int
-s390_adjust_priority (insn, priority)
- rtx insn ATTRIBUTE_UNUSED;
- int priority;
+s390_adjust_priority (rtx insn ATTRIBUTE_UNUSED, int priority)
{
if (! INSN_P (insn))
return priority;
/* The number of instructions that can be issued per cycle. */
static int
-s390_issue_rate ()
+s390_issue_rate (void)
{
if (s390_tune == PROCESSOR_2084_Z990)
return 3;
insn scheduler. */
static int
-s390_use_dfa_pipeline_interface ()
+s390_use_dfa_pipeline_interface (void)
{
if (s390_tune == PROCESSOR_2064_Z900
|| s390_tune == PROCESSOR_2084_Z990)
}
static int
-s390_first_cycle_multipass_dfa_lookahead ()
+s390_first_cycle_multipass_dfa_lookahead (void)
{
return s390_use_dfa_pipeline_interface () ? 4 : 0;
}
-/* Called after issuing each insn.
- Triggers default sort algorithm to better slot instructions. */
-
-static int
-s390_sched_reorder2 (dump, sched_verbose, ready, pn_ready, clock_var)
- FILE *dump ATTRIBUTE_UNUSED;
- int sched_verbose ATTRIBUTE_UNUSED;
- rtx *ready ATTRIBUTE_UNUSED;
- int *pn_ready ATTRIBUTE_UNUSED;
- int clock_var ATTRIBUTE_UNUSED;
-{
- return s390_issue_rate();
-}
-
/* Split all branches that exceed the maximum distance.
- Returns true if this created a new literal pool entry.
-
- Code generated by this routine is allowed to use
- TEMP_REG as temporary scratch register. If this is
- done, TEMP_USED is set to true. */
+ Returns true if this created a new literal pool entry. */
static int
-s390_split_branches (temp_reg, temp_used)
- rtx temp_reg;
- bool *temp_used;
+s390_split_branches (void)
{
+ rtx temp_reg = gen_rtx_REG (Pmode, RETURN_REGNUM);
int new_literal = 0;
rtx insn, pat, tmp, target;
rtx *label;
else
continue;
- if (get_attr_length (insn) <= (TARGET_64BIT ? 6 : 4))
+ if (get_attr_length (insn) <= 4)
continue;
- *temp_used = 1;
-
- if (TARGET_64BIT)
- {
- tmp = emit_insn_before (gen_rtx_SET (Pmode, temp_reg, *label), insn);
- INSN_ADDRESSES_NEW (tmp, -1);
+ /* We are going to use the return register as scratch register,
+ make sure it will be saved/restored by the prologue/epilogue. */
+ cfun->machine->save_return_addr_p = 1;
- target = temp_reg;
- }
- else if (!flag_pic)
+ if (!flag_pic)
{
new_literal = 1;
tmp = force_const_mem (Pmode, *label);
by the caller before calling this routine. */
static void
-find_constant_pool_ref (x, ref)
- rtx x;
- rtx *ref;
+find_constant_pool_ref (rtx x, rtx *ref)
{
int i, j;
const char *fmt;
if (GET_CODE (x) == UNSPEC
&& XINT (x, 1) == UNSPEC_LTREL_BASE)
return;
+ /* Likewise POOL_ENTRY insns. */
+ if (GET_CODE (x) == UNSPEC_VOLATILE
+ && XINT (x, 1) == UNSPECV_POOL_ENTRY)
+ return;
if (GET_CODE (x) == SYMBOL_REF
&& CONSTANT_POOL_ADDRESS_P (x))
in X by the address ADDR. Fix up MEMs as required. */
static void
-replace_constant_pool_ref (x, ref, addr)
- rtx *x;
- rtx ref;
- rtx addr;
+replace_constant_pool_ref (rtx *x, rtx ref, rtx addr)
{
int i, j;
const char *fmt;
Return its constant pool symbol if found, NULL_RTX otherwise. */
static rtx
-find_ltrel_base (x)
- rtx x;
+find_ltrel_base (rtx x)
{
int i, j;
const char *fmt;
/* Replace any occurrence of UNSPEC_LTREL_BASE in X with BASE. */
static void
-replace_ltrel_base (x, base)
- rtx *x;
- rtx base;
+replace_ltrel_base (rtx *x, rtx base)
{
int i, j;
const char *fmt;
QImode
};
-rtx (*gen_consttable[NR_C_MODES])(rtx) =
-{
- gen_consttable_ti,
- gen_consttable_df, gen_consttable_di,
- gen_consttable_sf, gen_consttable_si,
- gen_consttable_hi,
- gen_consttable_qi
-};
-
struct constant
{
struct constant *next;
int size;
};
-static struct constant_pool * s390_chunkify_start PARAMS ((void));
-static void s390_chunkify_finish PARAMS ((struct constant_pool *));
-static void s390_chunkify_cancel PARAMS ((struct constant_pool *));
+static struct constant_pool * s390_mainpool_start (void);
+static void s390_mainpool_finish (struct constant_pool *, rtx base_reg);
+static void s390_mainpool_cancel (struct constant_pool *);
-static struct constant_pool *s390_start_pool PARAMS ((struct constant_pool **, rtx));
-static void s390_end_pool PARAMS ((struct constant_pool *, rtx));
-static void s390_add_pool_insn PARAMS ((struct constant_pool *, rtx));
-static struct constant_pool *s390_find_pool PARAMS ((struct constant_pool *, rtx));
-static void s390_add_constant PARAMS ((struct constant_pool *, rtx, enum machine_mode));
-static rtx s390_find_constant PARAMS ((struct constant_pool *, rtx, enum machine_mode));
-static rtx s390_dump_pool PARAMS ((struct constant_pool *));
-static void s390_free_pool PARAMS ((struct constant_pool *));
+static struct constant_pool * s390_chunkify_start (rtx base_reg);
+static void s390_chunkify_finish (struct constant_pool *, rtx base_reg);
+static void s390_chunkify_cancel (struct constant_pool *);
+
+static struct constant_pool *s390_start_pool (struct constant_pool **, rtx);
+static void s390_end_pool (struct constant_pool *, rtx);
+static void s390_add_pool_insn (struct constant_pool *, rtx);
+static struct constant_pool *s390_find_pool (struct constant_pool *, rtx);
+static void s390_add_constant (struct constant_pool *, rtx, enum machine_mode);
+static rtx s390_find_constant (struct constant_pool *, rtx, enum machine_mode);
+static rtx s390_dump_pool (struct constant_pool *, bool);
+static struct constant_pool *s390_alloc_pool (void);
+static void s390_free_pool (struct constant_pool *);
/* Create new constant pool covering instructions starting at INSN
and chain it to the end of POOL_LIST. */
static struct constant_pool *
-s390_start_pool (pool_list, insn)
- struct constant_pool **pool_list;
- rtx insn;
+s390_start_pool (struct constant_pool **pool_list, rtx insn)
{
struct constant_pool *pool, **prev;
- int i;
- pool = (struct constant_pool *) xmalloc (sizeof *pool);
- pool->next = NULL;
- for (i = 0; i < NR_C_MODES; i++)
- pool->constants[i] = NULL;
-
- pool->label = gen_label_rtx ();
+ pool = s390_alloc_pool ();
pool->first_insn = insn;
- pool->pool_insn = NULL_RTX;
- pool->insns = BITMAP_XMALLOC ();
- pool->size = 0;
for (prev = pool_list; *prev; prev = &(*prev)->next)
;
placeholder insn representing the pool. */
static void
-s390_end_pool (pool, insn)
- struct constant_pool *pool;
- rtx insn;
+s390_end_pool (struct constant_pool *pool, rtx insn)
{
rtx pool_size = GEN_INT (pool->size + 8 /* alignment slop */);
/* Add INSN to the list of insns covered by POOL. */
static void
-s390_add_pool_insn (pool, insn)
- struct constant_pool *pool;
- rtx insn;
+s390_add_pool_insn (struct constant_pool *pool, rtx insn)
{
bitmap_set_bit (pool->insns, INSN_UID (insn));
}
/* Return pool out of POOL_LIST that covers INSN. */
static struct constant_pool *
-s390_find_pool (pool_list, insn)
- struct constant_pool *pool_list;
- rtx insn;
+s390_find_pool (struct constant_pool *pool_list, rtx insn)
{
struct constant_pool *pool;
/* Add constant VAL of mode MODE to the constant pool POOL. */
static void
-s390_add_constant (pool, val, mode)
- struct constant_pool *pool;
- rtx val;
- enum machine_mode mode;
+s390_add_constant (struct constant_pool *pool, rtx val, enum machine_mode mode)
{
struct constant *c;
int i;
the pool to the location of the new constant. */
static rtx
-s390_find_constant (pool, val, mode)
- struct constant_pool *pool;
- rtx val;
- enum machine_mode mode;
+s390_find_constant (struct constant_pool *pool, rtx val,
+ enum machine_mode mode)
{
struct constant *c;
rtx offset;
return offset;
}
-/* Dump out the constants in POOL. */
+/* Dump out the constants in POOL. If REMOTE_LABEL is true,
+ do not emit the pool base label. */
static rtx
-s390_dump_pool (pool)
- struct constant_pool *pool;
+s390_dump_pool (struct constant_pool *pool, bool remote_label)
{
struct constant *c;
rtx insn;
/* Pool start insn switches to proper section
and guarantees necessary alignment. */
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
insn = emit_insn_after (gen_pool_start_64 (), pool->pool_insn);
else
insn = emit_insn_after (gen_pool_start_31 (), pool->pool_insn);
INSN_ADDRESSES_NEW (insn, -1);
- insn = emit_label_after (pool->label, insn);
- INSN_ADDRESSES_NEW (insn, -1);
+ if (!remote_label)
+ {
+ insn = emit_label_after (pool->label, insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+ }
/* Dump constants in descending alignment requirement order,
ensuring proper alignment for every constant. */
&& XVECLEN (XEXP (value, 0), 0) == 1)
{
value = gen_rtx_MINUS (Pmode, XVECEXP (XEXP (value, 0), 0, 0),
- gen_rtx_LABEL_REF (VOIDmode, pool->label));
+ gen_rtx_LABEL_REF (VOIDmode, pool->label));
value = gen_rtx_CONST (VOIDmode, value);
}
insn = emit_label_after (c->label, insn);
INSN_ADDRESSES_NEW (insn, -1);
- insn = emit_insn_after (gen_consttable[i] (value), insn);
+
+ value = gen_rtx_UNSPEC_VOLATILE (constant_modes[i],
+ gen_rtvec (1, value),
+ UNSPECV_POOL_ENTRY);
+ insn = emit_insn_after (value, insn);
INSN_ADDRESSES_NEW (insn, -1);
}
/* Pool end insn switches back to previous section
and guarantees necessary alignment. */
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
insn = emit_insn_after (gen_pool_end_64 (), insn);
else
insn = emit_insn_after (gen_pool_end_31 (), insn);
return insn;
}
+/* Allocate new constant_pool structure. */
+
+static struct constant_pool *
+s390_alloc_pool (void)
+{
+ struct constant_pool *pool;
+ int i;
+
+ pool = (struct constant_pool *) xmalloc (sizeof *pool);
+ pool->next = NULL;
+ for (i = 0; i < NR_C_MODES; i++)
+ pool->constants[i] = NULL;
+
+ pool->label = gen_label_rtx ();
+ pool->first_insn = NULL_RTX;
+ pool->pool_insn = NULL_RTX;
+ pool->insns = BITMAP_XMALLOC ();
+ pool->size = 0;
+
+ return pool;
+}
+
/* Free all memory used by POOL. */
static void
-s390_free_pool (pool)
- struct constant_pool *pool;
+s390_free_pool (struct constant_pool *pool)
{
int i;
}
-/* Chunkify the literal pool if required. */
+/* Collect main literal pool. Return NULL on overflow. */
+
+static struct constant_pool *
+s390_mainpool_start (void)
+{
+ struct constant_pool *pool;
+ rtx insn;
+
+ pool = s390_alloc_pool ();
+
+ for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
+ {
+ if (GET_CODE (insn) == INSN
+ && GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
+ && XINT (PATTERN (insn), 1) == UNSPECV_MAIN_POOL)
+ {
+ if (pool->pool_insn)
+ abort ();
+ pool->pool_insn = insn;
+ }
+
+ if (GET_CODE (insn) == INSN || GET_CODE (insn) == CALL_INSN)
+ {
+ rtx pool_ref = NULL_RTX;
+ find_constant_pool_ref (PATTERN (insn), &pool_ref);
+ if (pool_ref)
+ {
+ rtx constant = get_pool_constant (pool_ref);
+ enum machine_mode mode = get_pool_mode (pool_ref);
+ s390_add_constant (pool, constant, mode);
+ }
+ }
+ }
+
+ if (!pool->pool_insn)
+ abort ();
+
+ if (pool->size >= 4096)
+ {
+ /* We're going to chunkify the pool, so remove the main
+ pool placeholder insn. */
+ remove_insn (pool->pool_insn);
+
+ s390_free_pool (pool);
+ pool = NULL;
+ }
+
+ return pool;
+}
+
+/* POOL holds the main literal pool as collected by s390_mainpool_start.
+ Modify the current function to output the pool constants as well as
+ the pool register setup instruction. BASE_REG is the register to
+ be used as pool base register. */
+
+static void
+s390_mainpool_finish (struct constant_pool *pool, rtx base_reg)
+{
+ rtx insn;
+
+ /* If the pool is empty, we're done. */
+ if (pool->size == 0)
+ {
+ remove_insn (pool->pool_insn);
+ s390_free_pool (pool);
+ return;
+ }
+
+ /* We need correct insn addresses. */
+ shorten_branches (get_insns ());
+
+ /* On zSeries, we use a LARL to load the pool register. The pool is
+ located in the .rodata section, so we emit it after the function. */
+ if (TARGET_CPU_ZARCH)
+ {
+ insn = gen_main_base_64 (base_reg, pool->label);
+ insn = emit_insn_after (insn, pool->pool_insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+ remove_insn (pool->pool_insn);
+
+ insn = get_last_insn ();
+ pool->pool_insn = emit_insn_after (gen_pool (const0_rtx), insn);
+ INSN_ADDRESSES_NEW (pool->pool_insn, -1);
+
+ s390_dump_pool (pool, 0);
+ }
+
+ /* On S/390, if the total size of the function's code plus literal pool
+ does not exceed 4096 bytes, we use BASR to set up a function base
+ pointer, and emit the literal pool at the end of the function. */
+ else if (INSN_ADDRESSES (INSN_UID (get_last_insn ()))
+ + pool->size + 8 /* alignment slop */ < 4096)
+ {
+ insn = gen_main_base_31_small (base_reg, pool->label);
+ insn = emit_insn_after (insn, pool->pool_insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+ remove_insn (pool->pool_insn);
+
+ insn = emit_label_after (pool->label, insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+
+ insn = get_last_insn ();
+ pool->pool_insn = emit_insn_after (gen_pool (const0_rtx), insn);
+ INSN_ADDRESSES_NEW (pool->pool_insn, -1);
+
+ s390_dump_pool (pool, 1);
+ }
+
+ /* Otherwise, we emit an inline literal pool and use BASR to branch
+ over it, setting up the pool register at the same time. */
+ else
+ {
+ rtx pool_end = gen_label_rtx ();
+
+ insn = gen_main_base_31_large (base_reg, pool->label, pool_end);
+ insn = emit_insn_after (insn, pool->pool_insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+ remove_insn (pool->pool_insn);
+
+ insn = emit_label_after (pool->label, insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+
+ pool->pool_insn = emit_insn_after (gen_pool (const0_rtx), insn);
+ INSN_ADDRESSES_NEW (pool->pool_insn, -1);
+
+ insn = emit_label_after (pool_end, pool->pool_insn);
+ INSN_ADDRESSES_NEW (insn, -1);
+
+ s390_dump_pool (pool, 1);
+ }
+
+
+ /* Replace all literal pool references. */
+
+ for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
+ {
+ if (INSN_P (insn))
+ replace_ltrel_base (&PATTERN (insn), base_reg);
+
+ if (GET_CODE (insn) == INSN || GET_CODE (insn) == CALL_INSN)
+ {
+ rtx addr, pool_ref = NULL_RTX;
+ find_constant_pool_ref (PATTERN (insn), &pool_ref);
+ if (pool_ref)
+ {
+ addr = s390_find_constant (pool, get_pool_constant (pool_ref),
+ get_pool_mode (pool_ref));
+ addr = gen_rtx_PLUS (Pmode, base_reg, addr);
+ replace_constant_pool_ref (&PATTERN (insn), pool_ref, addr);
+ INSN_CODE (insn) = -1;
+ }
+ }
+ }
+
+
+ /* Free the pool. */
+ s390_free_pool (pool);
+}
+
+/* POOL holds the main literal pool as collected by s390_mainpool_start.
+ We have decided we cannot use this pool, so revert all changes
+ to the current function that were done by s390_mainpool_start. */
+static void
+s390_mainpool_cancel (struct constant_pool *pool)
+{
+ /* We didn't actually change the instruction stream, so simply
+ free the pool memory. */
+ s390_free_pool (pool);
+}
+
+
+/* Chunkify the literal pool. BASE_REG is to be used as pool
+ register. */
#define S390_POOL_CHUNK_MIN 0xc00
#define S390_POOL_CHUNK_MAX 0xe00
static struct constant_pool *
-s390_chunkify_start (void)
+s390_chunkify_start (rtx base_reg)
{
- rtx base_reg = gen_rtx_REG (Pmode, BASE_REGISTER);
-
struct constant_pool *curr_pool = NULL, *pool_list = NULL;
int extra_size = 0;
bitmap far_labels;
rtx pending_ltrel = NULL_RTX;
rtx insn;
- rtx (*gen_reload_base) PARAMS ((rtx, rtx)) =
- TARGET_64BIT? gen_reload_base_64 : gen_reload_base_31;
+ rtx (*gen_reload_base) (rtx, rtx) =
+ TARGET_CPU_ZARCH? gen_reload_base_64 : gen_reload_base_31;
- /* Do we need to chunkify the literal pool? */
-
- if (get_pool_size () < S390_POOL_CHUNK_MAX)
- return NULL;
-
/* We need correct insn addresses. */
shorten_branches (get_insns ());
|| INSN_ADDRESSES (INSN_UID (insn)) == -1)
continue;
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
{
if (curr_pool->size < S390_POOL_CHUNK_MAX)
continue;
else
{
int chunk_size = INSN_ADDRESSES (INSN_UID (insn))
- - INSN_ADDRESSES (INSN_UID (curr_pool->first_insn))
+ - INSN_ADDRESSES (INSN_UID (curr_pool->first_insn))
+ extra_size;
/* We will later have to insert base register reload insns.
if (pending_ltrel)
continue;
- label = gen_label_rtx ();
+ label = gen_label_rtx ();
jump = emit_jump_insn_after (gen_jump (label), insn);
barrier = emit_barrier_after (jump);
insn = emit_label_after (label, barrier);
/* POOL_LIST is a chunk list as prepared by s390_chunkify_start.
After we have decided to use this list, finish implementing
- all changes to the current function as required. */
+ all changes to the current function as required. BASE_REG is
+ to be used as pool base register. */
static void
-s390_chunkify_finish (pool_list)
- struct constant_pool *pool_list;
+s390_chunkify_finish (struct constant_pool *pool_list, rtx base_reg)
{
- rtx base_reg = gen_rtx_REG (Pmode, BASE_REGISTER);
struct constant_pool *curr_pool = NULL;
rtx insn;
/* Dump out all literal pools. */
for (curr_pool = pool_list; curr_pool; curr_pool = curr_pool->next)
- s390_dump_pool (curr_pool);
+ s390_dump_pool (curr_pool, 0);
/* Free pool list. */
to the current function that were done by s390_chunkify_start. */
static void
-s390_chunkify_cancel (pool_list)
- struct constant_pool *pool_list;
+s390_chunkify_cancel (struct constant_pool *pool_list)
{
struct constant_pool *curr_pool = NULL;
rtx insn;
}
-/* Index of constant pool chunk that is currently being processed.
- Set to -1 before function output has started. */
-int s390_pool_count = -1;
-
-/* Number of elements of current constant pool. */
-int s390_nr_constants;
-
-/* Output main constant pool to stdio stream FILE. */
+/* Output the constant pool entry EXP in mode MODE with alignment ALIGN. */
void
-s390_output_constant_pool (start_label, end_label)
- rtx start_label;
- rtx end_label;
+s390_output_pool_entry (rtx exp, enum machine_mode mode, unsigned int align)
{
- if (TARGET_64BIT)
- {
- readonly_data_section ();
- ASM_OUTPUT_ALIGN (asm_out_file, 3);
- (*targetm.asm_out.internal_label) (asm_out_file, "L",
- CODE_LABEL_NUMBER (start_label));
- }
- else
- {
- (*targetm.asm_out.internal_label) (asm_out_file, "L",
- CODE_LABEL_NUMBER (start_label));
- ASM_OUTPUT_ALIGN (asm_out_file, 2);
- }
+ REAL_VALUE_TYPE r;
- s390_pool_count = 0;
- output_constant_pool (current_function_name, current_function_decl);
- s390_pool_count = -1;
- if (TARGET_64BIT)
- function_section (current_function_decl);
- else
+ switch (GET_MODE_CLASS (mode))
{
- ASM_OUTPUT_ALIGN (asm_out_file, 1);
- (*targetm.asm_out.internal_label) (asm_out_file, "L",
- CODE_LABEL_NUMBER (end_label));
+ case MODE_FLOAT:
+ if (GET_CODE (exp) != CONST_DOUBLE)
+ abort ();
+
+ REAL_VALUE_FROM_CONST_DOUBLE (r, exp);
+ assemble_real (r, mode, align);
+ break;
+
+ case MODE_INT:
+ assemble_integer (exp, GET_MODE_SIZE (mode), align, 1);
+ break;
+
+ default:
+ abort ();
}
}
+
/* Rework the prolog/epilog to avoid saving/restoring
- registers unnecessarily. If TEMP_REGNO is nonnegative,
- it specifies the number of a caller-saved register used
- as temporary scratch register by code emitted during
- machine dependent reorg. */
+ registers unnecessarily. BASE_USED specifies whether
+ the literal pool base register needs to be saved. */
static void
-s390_optimize_prolog (temp_regno)
- int temp_regno;
+s390_optimize_prolog (bool base_used)
{
int save_first, save_last, restore_first, restore_last;
int i, j;
rtx insn, new_insn, next_insn;
/* Recompute regs_ever_live data for special registers. */
- regs_ever_live[BASE_REGISTER] = 0;
- regs_ever_live[RETURN_REGNUM] = 0;
+ regs_ever_live[BASE_REGISTER] = base_used;
+ regs_ever_live[RETURN_REGNUM] = cfun->machine->save_return_addr_p;
regs_ever_live[STACK_POINTER_REGNUM] = cfun->machine->frame_size > 0;
- /* If there is (possibly) any pool entry, we need to
- load the base register.
- ??? FIXME: this should be more precise. */
- if (get_pool_size ())
- regs_ever_live[BASE_REGISTER] = 1;
-
- /* In non-leaf functions, the prolog/epilog code relies
- on RETURN_REGNUM being saved in any case. */
- if (!current_function_is_leaf)
- regs_ever_live[RETURN_REGNUM] = 1;
-
- /* We need to save/restore the temporary register. */
- if (temp_regno >= 0)
- regs_ever_live[temp_regno] = 1;
-
/* Find first and last gpr to be saved. */
/* If all special registers are in fact used, there's nothing we
can do, so no point in walking the insn list. */
if (i <= BASE_REGISTER && j >= BASE_REGISTER
- && i <= RETURN_REGNUM && j >= RETURN_REGNUM)
+ && (TARGET_CPU_ZARCH || (i <= RETURN_REGNUM && j >= RETURN_REGNUM)))
return;
if (GET_CODE (insn) != INSN)
continue;
- if (GET_CODE (PATTERN (insn)) != PARALLEL)
- continue;
- if (store_multiple_operation (PATTERN (insn), VOIDmode))
+ if (GET_CODE (PATTERN (insn)) == PARALLEL
+ && store_multiple_operation (PATTERN (insn), VOIDmode))
{
set = XVECEXP (PATTERN (insn), 0, 0);
first = REGNO (SET_SRC (set));
if (GET_CODE (base) != REG || off < 0)
continue;
- if (first > BASE_REGISTER && first > RETURN_REGNUM)
+ if (first > BASE_REGISTER || last < BASE_REGISTER)
continue;
- if (last < BASE_REGISTER && last < RETURN_REGNUM)
+
+ if (save_first != -1)
+ {
+ new_insn = save_gprs (base, off, save_first, save_last);
+ new_insn = emit_insn_before (new_insn, insn);
+ INSN_ADDRESSES_NEW (new_insn, -1);
+ }
+
+ remove_insn (insn);
+ continue;
+ }
+
+ if (GET_CODE (PATTERN (insn)) == SET
+ && GET_CODE (SET_SRC (PATTERN (insn))) == REG
+ && REGNO (SET_SRC (PATTERN (insn))) == BASE_REGISTER
+ && GET_CODE (SET_DEST (PATTERN (insn))) == MEM)
+ {
+ set = PATTERN (insn);
+ offset = const0_rtx;
+ base = eliminate_constant_term (XEXP (SET_DEST (set), 0), &offset);
+ off = INTVAL (offset) - BASE_REGISTER * UNITS_PER_WORD;
+
+ if (GET_CODE (base) != REG || off < 0)
continue;
if (save_first != -1)
}
remove_insn (insn);
+ continue;
}
- if (load_multiple_operation (PATTERN (insn), VOIDmode))
+ if (GET_CODE (PATTERN (insn)) == PARALLEL
+ && load_multiple_operation (PATTERN (insn), VOIDmode))
{
set = XVECEXP (PATTERN (insn), 0, 0);
first = REGNO (SET_DEST (set));
if (GET_CODE (base) != REG || off < 0)
continue;
- if (first > BASE_REGISTER && first > RETURN_REGNUM)
- continue;
- if (last < BASE_REGISTER && last < RETURN_REGNUM)
+ if (first > BASE_REGISTER || last < BASE_REGISTER)
continue;
if (restore_first != -1)
}
remove_insn (insn);
+ continue;
}
- }
-}
-
-/* Check whether any insn in the function makes use of the original
- value of RETURN_REG (e.g. for __builtin_return_address).
- If so, insert an insn reloading that value.
- Return true if any such insn was found. */
-
-static bool
-s390_fixup_clobbered_return_reg (return_reg)
- rtx return_reg;
-{
- bool replacement_done = 0;
- rtx insn;
-
- /* If we never called __builtin_return_address, register 14
- might have been used as temp during the prolog; we do
- not want to touch those uses. */
- if (!has_hard_reg_initial_val (Pmode, REGNO (return_reg)))
- return false;
-
- for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
- {
- rtx reg, off, new_insn;
+ if (GET_CODE (PATTERN (insn)) == SET
+ && GET_CODE (SET_DEST (PATTERN (insn))) == REG
+ && REGNO (SET_DEST (PATTERN (insn))) == BASE_REGISTER
+ && GET_CODE (SET_SRC (PATTERN (insn))) == MEM)
+ {
+ set = PATTERN (insn);
+ offset = const0_rtx;
+ base = eliminate_constant_term (XEXP (SET_SRC (set), 0), &offset);
+ off = INTVAL (offset) - BASE_REGISTER * UNITS_PER_WORD;
- if (GET_CODE (insn) != INSN)
- continue;
- if (!reg_referenced_p (return_reg, PATTERN (insn)))
- continue;
- if (GET_CODE (PATTERN (insn)) == PARALLEL
- && store_multiple_operation (PATTERN (insn), VOIDmode))
- continue;
+ if (GET_CODE (base) != REG || off < 0)
+ continue;
- if (frame_pointer_needed)
- reg = hard_frame_pointer_rtx;
- else
- reg = stack_pointer_rtx;
+ if (restore_first != -1)
+ {
+ new_insn = restore_gprs (base, off, restore_first, restore_last);
+ new_insn = emit_insn_before (new_insn, insn);
+ INSN_ADDRESSES_NEW (new_insn, -1);
+ }
- off = GEN_INT (cfun->machine->frame_size + REGNO (return_reg) * UNITS_PER_WORD);
- if (!DISP_IN_RANGE (INTVAL (off)))
- {
- off = force_const_mem (Pmode, off);
- new_insn = gen_rtx_SET (Pmode, return_reg, off);
- new_insn = emit_insn_before (new_insn, insn);
- INSN_ADDRESSES_NEW (new_insn, -1);
- off = return_reg;
+ remove_insn (insn);
+ continue;
}
-
- new_insn = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, reg, off));
- new_insn = gen_rtx_SET (Pmode, return_reg, new_insn);
- new_insn = emit_insn_before (new_insn, insn);
- INSN_ADDRESSES_NEW (new_insn, -1);
-
- replacement_done = 1;
}
-
- return replacement_done;
}
/* Perform machine-dependent processing. */
static void
-s390_reorg ()
+s390_reorg (void)
{
- bool fixed_up_clobbered_return_reg = 0;
- rtx temp_reg = gen_rtx_REG (Pmode, RETURN_REGNUM);
- bool temp_used = 0;
+ rtx base_reg = gen_rtx_REG (Pmode, BASE_REGISTER);
+ bool base_used = false;
+ bool pool_overflow = false;
/* Make sure all splits have been performed; splits after
machine_dependent_reorg might confuse insn length counts. */
split_all_insns_noflow ();
- /* There are two problematic situations we need to correct:
+ /* In small leaf functions, try to use an unused call-clobbered
+ register as base register to avoid save/restore overhead. */
+ if (current_function_is_leaf && !regs_ever_live[5])
+ base_reg = gen_rtx_REG (Pmode, 5);
+
+
+ /* Install the main literal pool and the associated base
+ register load insns.
+
+ In addition, there are two problematic situations we need
+ to correct:
- the literal pool might be > 4096 bytes in size, so that
some of its elements cannot be directly accessed
for (;;)
{
- struct constant_pool *pool_list;
+ struct constant_pool *pool = NULL;
+
+ /* Collect the literal pool. */
+ if (!pool_overflow)
+ {
+ pool = s390_mainpool_start ();
+ if (!pool)
+ pool_overflow = true;
+ }
- /* Try to chunkify the literal pool. */
- pool_list = s390_chunkify_start ();
+ /* If literal pool overflowed, start to chunkify it. */
+ if (pool_overflow)
+ pool = s390_chunkify_start (base_reg);
/* Split out-of-range branches. If this has created new
literal pool entries, cancel current chunk list and
- recompute it. */
- if (s390_split_branches (temp_reg, &temp_used))
+ recompute it. zSeries machines have large branch
+ instructions, so we never need to split a branch. */
+ if (!TARGET_CPU_ZARCH && s390_split_branches ())
{
- if (pool_list)
- s390_chunkify_cancel (pool_list);
+ if (pool_overflow)
+ s390_chunkify_cancel (pool);
+ else
+ s390_mainpool_cancel (pool);
continue;
}
- /* Check whether we have clobbered a use of the return
- register (e.g. for __builtin_return_address). If so,
- add insns reloading the register where necessary. */
- if (temp_used && !fixed_up_clobbered_return_reg
- && s390_fixup_clobbered_return_reg (temp_reg))
- {
- fixed_up_clobbered_return_reg = 1;
-
- /* The fixup insns might have caused a jump to overflow. */
- if (pool_list)
- s390_chunkify_cancel (pool_list);
-
- continue;
- }
-
/* If we made it up to here, both conditions are satisfied.
- Finish up pool chunkification if required. */
- if (pool_list)
- s390_chunkify_finish (pool_list);
+ Finish up literal pool related changes. */
+ if ((pool_overflow || pool->size > 0)
+ && REGNO (base_reg) == BASE_REGISTER)
+ base_used = true;
+
+ if (pool_overflow)
+ s390_chunkify_finish (pool, base_reg);
+ else
+ s390_mainpool_finish (pool, base_reg);
break;
}
- s390_optimize_prolog (temp_used? RETURN_REGNUM : -1);
+ s390_optimize_prolog (base_used);
}
frame pointer of that frame. */
rtx
-s390_return_addr_rtx (count, frame)
- int count;
- rtx frame;
+s390_return_addr_rtx (int count, rtx frame)
{
rtx addr;
- /* For the current frame, we use the initial value of RETURN_REGNUM.
- This works both in leaf and non-leaf functions. */
+ /* Without backchain, we fail for all but the current frame. */
+
+ if (!TARGET_BACKCHAIN && count > 0)
+ return NULL_RTX;
+
+ /* For the current frame, we need to make sure the initial
+ value of RETURN_REGNUM is actually saved. */
if (count == 0)
- return get_hard_reg_initial_val (Pmode, RETURN_REGNUM);
+ cfun->machine->save_return_addr_p = true;
- /* For frames farther back, we read the stack slot where the
+ /* To retrieve the return address we read the stack slot where the
corresponding RETURN_REGNUM value was saved. */
addr = plus_constant (frame, RETURN_REGNUM * UNITS_PER_WORD);
or for holding the return address before epilogue. */
static int
-find_unused_clobbered_reg ()
+find_unused_clobbered_reg (void)
{
int i;
for (i = 0; i < 6; i++)
/* Fill FRAME with info about frame of current function. */
static void
-s390_frame_info ()
+s390_frame_info (void)
{
- char gprs_ever_live[16];
int i, j;
HOST_WIDE_INT fsize = get_frame_size ();
- if (fsize > 0x7fff0000)
+ if (!TARGET_64BIT && fsize > 0x7fff0000)
fatal_error ("Total size of local variables exceeds architecture limit.");
/* fprs 8 - 15 are caller saved for 64 Bit ABI. */
|| current_function_stdarg)
cfun->machine->frame_size += STARTING_FRAME_OFFSET;
+ /* If we use the return register, we'll need to make sure
+ it is going to be saved/restored. */
+
+ if (!current_function_is_leaf
+ || regs_ever_live[RETURN_REGNUM])
+ cfun->machine->save_return_addr_p = 1;
+
/* Find first and last gpr to be saved. Note that at this point,
- we assume the return register and the base register always
- need to be saved. This is done because the usage of these
+ we assume the base register and -on S/390- the return register
+ always need to be saved. This is done because the usage of these
register might change even after the prolog was emitted.
If it turns out later that we really don't need them, the
prolog/epilog code is modified again. */
- for (i = 0; i < 16; i++)
- gprs_ever_live[i] = regs_ever_live[i] && !global_regs[i];
-
- if (flag_pic)
- gprs_ever_live[PIC_OFFSET_TABLE_REGNUM] =
- regs_ever_live[PIC_OFFSET_TABLE_REGNUM];
- gprs_ever_live[BASE_REGISTER] = 1;
- gprs_ever_live[RETURN_REGNUM] = 1;
- gprs_ever_live[STACK_POINTER_REGNUM] = cfun->machine->frame_size > 0;
+ regs_ever_live[BASE_REGISTER] = 1;
+ if (!TARGET_CPU_ZARCH || cfun->machine->save_return_addr_p)
+ regs_ever_live[RETURN_REGNUM] = 1;
+ regs_ever_live[STACK_POINTER_REGNUM] = cfun->machine->frame_size > 0;
for (i = 6; i < 16; i++)
- if (gprs_ever_live[i])
- break;
+ if (regs_ever_live[i])
+ if (!global_regs[i]
+ || i == STACK_POINTER_REGNUM
+ || i == RETURN_REGNUM
+ || i == BASE_REGISTER
+ || (flag_pic && i == (int)PIC_OFFSET_TABLE_REGNUM))
+ break;
for (j = 15; j > i; j--)
- if (gprs_ever_live[j])
- break;
-
+ if (regs_ever_live[j])
+ if (!global_regs[j]
+ || j == STACK_POINTER_REGNUM
+ || j == RETURN_REGNUM
+ || j == BASE_REGISTER
+ || (flag_pic && j == (int)PIC_OFFSET_TABLE_REGNUM))
+ break;
/* Save / Restore from gpr i to j. */
cfun->machine->first_save_gpr = i;
/* Return offset between argument pointer and frame pointer
initially after prologue. */
-int
-s390_arg_frame_offset ()
+HOST_WIDE_INT
+s390_arg_frame_offset (void)
{
HOST_WIDE_INT fsize = get_frame_size ();
int save_fprs_p, i;
to register BASE. Return generated insn. */
static rtx
-save_fpr (base, offset, regnum)
- rtx base;
- int offset;
- int regnum;
+save_fpr (rtx base, int offset, int regnum)
{
rtx addr;
addr = gen_rtx_MEM (DFmode, plus_constant (base, offset));
to register BASE. Return generated insn. */
static rtx
-restore_fpr (base, offset, regnum)
- rtx base;
- int offset;
- int regnum;
+restore_fpr (rtx base, int offset, int regnum)
{
rtx addr;
addr = gen_rtx_MEM (DFmode, plus_constant (base, offset));
relative to register BASE. */
static rtx
-save_gprs (base, offset, first, last)
- rtx base;
- int offset;
- int first;
- int last;
+save_gprs (rtx base, int offset, int first, int last)
{
rtx addr, insn, note;
int i;
relative to register BASE. */
static rtx
-restore_gprs (base, offset, first, last)
- rtx base;
- int offset;
- int first;
- int last;
+restore_gprs (rtx base, int offset, int first, int last)
{
rtx addr, insn;
static GTY(()) rtx got_symbol;
void
-s390_load_got (maybe_dead)
- int maybe_dead;
+s390_load_got (int maybe_dead)
{
if (!got_symbol)
{
SYMBOL_REF_FLAGS (got_symbol) = SYMBOL_FLAG_LOCAL;
}
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
{
rtx insn = emit_move_insn (pic_offset_table_rtx, got_symbol);
if (maybe_dead)
/* Expand the prologue into a bunch of separate insns. */
void
-s390_emit_prologue ()
+s390_emit_prologue (void)
{
rtx insn, addr;
rtx temp_reg;
- rtx pool_start_label, pool_end_label;
int i;
/* Compute frame_info. */
See below for why TPF must use the register 1. */
if (!current_function_is_leaf
- && !has_hard_reg_initial_val (Pmode, RETURN_REGNUM)
- && get_pool_size () < S390_POOL_CHUNK_MAX / 2
&& !TARGET_TPF)
temp_reg = gen_rtx_REG (Pmode, RETURN_REGNUM);
else
cfun->machine->first_save_gpr, cfun->machine->last_save_gpr);
emit_insn (insn);
- /* Dump constant pool and set constant pool register. */
+ /* Dummy insn to mark literal pool slot. */
- pool_start_label = gen_label_rtx();
- pool_end_label = gen_label_rtx();
- cfun->machine->literal_pool_label = pool_start_label;
-
- if (TARGET_64BIT)
- insn = emit_insn (gen_literal_pool_64 (gen_rtx_REG (Pmode, BASE_REGISTER),
- pool_start_label, pool_end_label));
- else
- insn = emit_insn (gen_literal_pool_31 (gen_rtx_REG (Pmode, BASE_REGISTER),
- pool_start_label, pool_end_label));
+ emit_insn (gen_main_pool ());
/* Save fprs for variable args. */
if (current_function_stdarg)
- {
- /* Save fpr 0 and 2. */
-
- save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 32, 16);
- save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 24, 17);
-
- if (TARGET_64BIT)
- {
- /* Save fpr 4 and 6. */
-
- save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 16, 18);
- save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 8, 19);
- }
- }
+ for (i = 16; i < (TARGET_64BIT ? 20 : 18); i++)
+ save_fpr (stack_pointer_rtx, 16*UNITS_PER_WORD + 8*(i-16), i);
/* Save fprs 4 and 6 if used (31 bit ABI). */
if (!TARGET_64BIT)
- {
- /* Save fpr 4 and 6. */
- if (regs_ever_live[18] && !global_regs[18])
- {
- insn = save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 16, 18);
- RTX_FRAME_RELATED_P (insn) = 1;
- }
- if (regs_ever_live[19] && !global_regs[19])
+ for (i = 18; i < 20; i++)
+ if (regs_ever_live[i] && !global_regs[i])
{
- insn = save_fpr (stack_pointer_rtx, STACK_POINTER_OFFSET - 8, 19);
+ insn = save_fpr (stack_pointer_rtx, 16*UNITS_PER_WORD + 8*(i-16), i);
RTX_FRAME_RELATED_P (insn) = 1;
}
- }
/* Decrement stack pointer. */
{
insn = gen_rtx_SET (VOIDmode, stack_pointer_rtx,
gen_rtx_PLUS (Pmode, stack_pointer_rtx,
- frame_off));
+ frame_off));
insn = emit_insn (insn);
}
else
{
- if (!CONST_OK_FOR_LETTER_P (INTVAL (frame_off), 'K'))
+ if (!CONST_OK_FOR_CONSTRAINT_P (INTVAL (frame_off), 'K', "K"))
frame_off = force_const_mem (Pmode, frame_off);
insn = emit_insn (gen_add2_insn (stack_pointer_rtx, frame_off));
/* Expand the epilogue into a bunch of separate insns. */
void
-s390_emit_epilogue ()
+s390_emit_epilogue (void)
{
rtx frame_pointer, return_reg;
int area_bottom, area_top, offset = 0;
rtvec p;
+ int i;
if (TARGET_TPF)
{
}
else
{
- if (regs_ever_live[18] && !global_regs[18])
- {
- if (area_bottom > STACK_POINTER_OFFSET - 16)
- area_bottom = STACK_POINTER_OFFSET - 16;
- if (area_top < STACK_POINTER_OFFSET - 8)
- area_top = STACK_POINTER_OFFSET - 8;
- }
- if (regs_ever_live[19] && !global_regs[19])
- {
- if (area_bottom > STACK_POINTER_OFFSET - 8)
- area_bottom = STACK_POINTER_OFFSET - 8;
- if (area_top < STACK_POINTER_OFFSET)
- area_top = STACK_POINTER_OFFSET;
- }
+ for (i = 18; i < 20; i++)
+ if (regs_ever_live[i] && !global_regs[i])
+ {
+ if (area_bottom > 16*UNITS_PER_WORD + 8*(i-16))
+ area_bottom = 16*UNITS_PER_WORD + 8*(i-16);
+ if (area_top < 16*UNITS_PER_WORD + 8*(i-16) + 8)
+ area_top = 16*UNITS_PER_WORD + 8*(i-16) + 8;
+ }
}
/* Check whether we can access the register save area.
}
else
{
- if (!CONST_OK_FOR_LETTER_P (INTVAL (frame_off), 'K'))
+ if (!CONST_OK_FOR_CONSTRAINT_P (INTVAL (frame_off), 'K', "K"))
frame_off = force_const_mem (Pmode, frame_off);
insn = emit_insn (gen_add2_insn (frame_pointer, frame_off));
if (TARGET_64BIT)
{
- int i;
-
if (cfun->machine->save_fprs_p)
for (i = 24; i < 32; i++)
if (regs_ever_live[i] && !global_regs[i])
}
else
{
- if (regs_ever_live[18] && !global_regs[18])
- restore_fpr (frame_pointer, offset + STACK_POINTER_OFFSET - 16, 18);
- if (regs_ever_live[19] && !global_regs[19])
- restore_fpr (frame_pointer, offset + STACK_POINTER_OFFSET - 8, 19);
+ for (i = 18; i < 20; i++)
+ if (regs_ever_live[i] && !global_regs[i])
+ restore_fpr (frame_pointer,
+ offset + 16*UNITS_PER_WORD + 8*(i-16), i);
}
/* Return register. */
/* Fetch return address from stack before load multiple,
this will do good for scheduling. */
- if (!current_function_is_leaf)
+ if (cfun->machine->save_return_addr_p
+ || (cfun->machine->first_restore_gpr < BASE_REGISTER
+ && cfun->machine->last_save_gpr > RETURN_REGNUM))
{
int return_regnum = find_unused_clobbered_reg();
if (!return_regnum)
MODE must be specified. */
static int
-s390_function_arg_size (mode, type)
- enum machine_mode mode;
- tree type;
+s390_function_arg_size (enum machine_mode mode, tree type)
{
if (type)
return int_size_in_bytes (type);
is to be passed in a floating-point register, if available. */
static bool
-s390_function_arg_float (mode, type)
- enum machine_mode mode;
- tree type;
+s390_function_arg_float (enum machine_mode mode, tree type)
{
+ int size = s390_function_arg_size (mode, type);
+ if (size > 8)
+ return false;
+
/* Soft-float changes the ABI: no floating-point registers are used. */
if (TARGET_SOFT_FLOAT)
return false;
return TREE_CODE (type) == REAL_TYPE;
}
+/* Return true if a function argument of type TYPE and mode MODE
+ is to be passed in an integer register, or a pair of integer
+ registers, if available. */
+
+static bool
+s390_function_arg_integer (enum machine_mode mode, tree type)
+{
+ int size = s390_function_arg_size (mode, type);
+ if (size > 8)
+ return false;
+
+ /* No type info available for some library calls ... */
+ if (!type)
+ return GET_MODE_CLASS (mode) == MODE_INT
+ || (TARGET_SOFT_FLOAT && GET_MODE_CLASS (mode) == MODE_FLOAT);
+
+ /* We accept small integral (and similar) types. */
+ if (INTEGRAL_TYPE_P (type)
+ || POINTER_TYPE_P (type)
+ || TREE_CODE (type) == OFFSET_TYPE
+ || (TARGET_SOFT_FLOAT && TREE_CODE (type) == REAL_TYPE))
+ return true;
+
+ /* We also accept structs of size 1, 2, 4, 8 that are not
+ passed in floating-point registers. */
+ if (AGGREGATE_TYPE_P (type)
+ && exact_log2 (size) >= 0
+ && !s390_function_arg_float (mode, type))
+ return true;
+
+ return false;
+}
+
/* Return 1 if a function argument of type TYPE and mode MODE
is to be passed by reference. The ABI specifies that only
structures of size 1, 2, 4, or 8 bytes are passed by value,
reference. */
int
-s390_function_arg_pass_by_reference (mode, type)
- enum machine_mode mode;
- tree type;
+s390_function_arg_pass_by_reference (enum machine_mode mode, tree type)
{
int size = s390_function_arg_size (mode, type);
+ if (size > 8)
+ return true;
if (type)
{
- if (AGGREGATE_TYPE_P (type) &&
- size != 1 && size != 2 && size != 4 && size != 8
- && !s390_function_arg_float (mode, type))
+ if (AGGREGATE_TYPE_P (type) && exact_log2 (size) < 0)
return 1;
- if (TREE_CODE (type) == COMPLEX_TYPE)
+ if (TREE_CODE (type) == COMPLEX_TYPE
+ || TREE_CODE (type) == VECTOR_TYPE)
return 1;
}
matching an ellipsis). */
void
-s390_function_arg_advance (cum, mode, type, named)
- CUMULATIVE_ARGS *cum;
- enum machine_mode mode;
- tree type;
- int named ATTRIBUTE_UNUSED;
+s390_function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
+ tree type, int named ATTRIBUTE_UNUSED)
{
if (s390_function_arg_pass_by_reference (mode, type))
{
{
cum->fprs += 1;
}
- else
+ else if (s390_function_arg_integer (mode, type))
{
int size = s390_function_arg_size (mode, type);
cum->gprs += ((size + UNITS_PER_WORD-1) / UNITS_PER_WORD);
}
+ else
+ abort ();
}
/* Define where to put the arguments to a function.
are pushed to the stack. */
rtx
-s390_function_arg (cum, mode, type, named)
- CUMULATIVE_ARGS *cum;
- enum machine_mode mode;
- tree type;
- int named ATTRIBUTE_UNUSED;
+s390_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type,
+ int named ATTRIBUTE_UNUSED)
{
if (s390_function_arg_pass_by_reference (mode, type))
return 0;
if (cum->fprs + 1 > (TARGET_64BIT? 4 : 2))
return 0;
else
- return gen_rtx (REG, mode, cum->fprs + 16);
+ return gen_rtx_REG (mode, cum->fprs + 16);
}
- else
+ else if (s390_function_arg_integer (mode, type))
{
int size = s390_function_arg_size (mode, type);
int n_gprs = (size + UNITS_PER_WORD-1) / UNITS_PER_WORD;
if (cum->gprs + n_gprs > 5)
return 0;
else
- return gen_rtx (REG, mode, cum->gprs + 2);
+ return gen_rtx_REG (mode, cum->gprs + 2);
}
+
+ /* After the real arguments, expand_call calls us once again
+ with a void_type_node type. Whatever we return here is
+ passed as operand 2 to the call expanders.
+
+ We don't need this feature ... */
+ else if (type == void_type_node)
+ return const0_rtx;
+
+ abort ();
+}
+
+/* Return true if return values of type TYPE should be returned
+ in a memory buffer whose address is passed by the caller as
+ hidden first argument. */
+
+static bool
+s390_return_in_memory (tree type, tree fundecl ATTRIBUTE_UNUSED)
+{
+ /* We accept small integral (and similar) types. */
+ if (INTEGRAL_TYPE_P (type)
+ || POINTER_TYPE_P (type)
+ || TREE_CODE (type) == OFFSET_TYPE
+ || TREE_CODE (type) == REAL_TYPE)
+ return int_size_in_bytes (type) > 8;
+
+ /* Aggregates and similar constructs are always returned
+ in memory. */
+ if (AGGREGATE_TYPE_P (type)
+ || TREE_CODE (type) == COMPLEX_TYPE
+ || TREE_CODE (type) == VECTOR_TYPE)
+ return true;
+
+ /* ??? We get called on all sorts of random stuff from
+ aggregate_value_p. We can't abort, but it's not clear
+ what's safe to return. Pretend it's a struct I guess. */
+ return true;
+}
+
+/* Define where to return a (scalar) value of type TYPE.
+ If TYPE is null, define where to return a (scalar)
+ value of mode MODE from a libcall. */
+
+rtx
+s390_function_value (tree type, enum machine_mode mode)
+{
+ if (type)
+ {
+ int unsignedp = TREE_UNSIGNED (type);
+ mode = promote_mode (type, TYPE_MODE (type), &unsignedp, 1);
+ }
+
+ if (GET_MODE_CLASS (mode) != MODE_INT
+ && GET_MODE_CLASS (mode) != MODE_FLOAT)
+ abort ();
+ if (GET_MODE_SIZE (mode) > 8)
+ abort ();
+
+ if (TARGET_HARD_FLOAT && GET_MODE_CLASS (mode) == MODE_FLOAT)
+ return gen_rtx_REG (mode, 16);
+ else
+ return gen_rtx_REG (mode, 2);
}
long __fpr;
void *__overflow_arg_area;
void *__reg_save_area;
-
} va_list[1];
where __gpr and __fpr hold the number of general purpose
saves all registers used for argument passing into this
area if the function uses variable arguments. */
-tree
-s390_build_va_list ()
+static tree
+s390_build_builtin_va_list (void)
{
tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl;
- record = (*lang_hooks.types.make_type) (RECORD_TYPE);
+ record = lang_hooks.types.make_type (RECORD_TYPE);
type_decl =
build_decl (TYPE_DECL, get_identifier ("__va_list_tag"), record);
(relative to the virtual arg pointer). */
void
-s390_va_start (valist, nextarg)
- tree valist;
- rtx nextarg ATTRIBUTE_UNUSED;
+s390_va_start (tree valist, rtx nextarg ATTRIBUTE_UNUSED)
{
HOST_WIDE_INT n_gpr, n_fpr;
int off;
} */
rtx
-s390_va_arg (valist, type)
- tree valist;
- tree type;
+s390_va_arg (tree valist, tree type)
{
tree f_gpr, f_fpr, f_ovf, f_sav;
tree gpr, fpr, ovf, sav, reg, t, u;
};
static void
-s390_init_builtins ()
+s390_init_builtins (void)
{
tree ftype;
IGNORE is nonzero if the value is to be ignored. */
static rtx
-s390_expand_builtin (exp, target, subtarget, mode, ignore)
- tree exp;
- rtx target;
- rtx subtarget ATTRIBUTE_UNUSED;
- enum machine_mode mode ATTRIBUTE_UNUSED;
- int ignore ATTRIBUTE_UNUSED;
+s390_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
+ enum machine_mode mode ATTRIBUTE_UNUSED,
+ int ignore ATTRIBUTE_UNUSED)
{
#define MAX_ARGS 2
gpr 0 is used to hold the static chain. */
void
-s390_trampoline_template (file)
- FILE *file;
+s390_trampoline_template (FILE *file)
{
if (TARGET_64BIT)
{
CXT is an RTX for the static chain value for the function. */
void
-s390_initialize_trampoline (addr, fnaddr, cxt)
- rtx addr;
- rtx fnaddr;
- rtx cxt;
+s390_initialize_trampoline (rtx addr, rtx fnaddr, rtx cxt)
{
- emit_move_insn (gen_rtx
- (MEM, Pmode,
+ emit_move_insn (gen_rtx_MEM (Pmode,
memory_address (Pmode,
plus_constant (addr, (TARGET_64BIT ? 20 : 12) ))), cxt);
- emit_move_insn (gen_rtx
- (MEM, Pmode,
+ emit_move_insn (gen_rtx_MEM (Pmode,
memory_address (Pmode,
plus_constant (addr, (TARGET_64BIT ? 28 : 16) ))), fnaddr);
}
LOW and HIGH, independent of the host word size. */
rtx
-s390_gen_rtx_const_DI (high, low)
- int high;
- int low;
+s390_gen_rtx_const_DI (int high, int low)
{
#if HOST_BITS_PER_WIDE_INT >= 64
HOST_WIDE_INT val;
for profiling a function entry. */
void
-s390_function_profiler (file, labelno)
- FILE *file;
- int labelno;
+s390_function_profiler (FILE *file, int labelno)
{
rtx op[7];
output_asm_insn ("bras\t%2,%l6", op);
output_asm_insn (".long\t%4", op);
output_asm_insn (".long\t%3", op);
- (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (op[6]));
+ targetm.asm_out.internal_label (file, "L", CODE_LABEL_NUMBER (op[6]));
output_asm_insn ("l\t%0,0(%2)", op);
output_asm_insn ("l\t%2,4(%2)", op);
output_asm_insn ("basr\t%0,%0", op);
output_asm_insn ("st\t%0,%1", op);
output_asm_insn ("bras\t%2,%l6", op);
- (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (op[5]));
+ targetm.asm_out.internal_label (file, "L", CODE_LABEL_NUMBER (op[5]));
output_asm_insn (".long\t%4-%l5", op);
output_asm_insn (".long\t%3-%l5", op);
- (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (op[6]));
+ targetm.asm_out.internal_label (file, "L", CODE_LABEL_NUMBER (op[6]));
output_asm_insn ("lr\t%0,%2", op);
output_asm_insn ("a\t%0,0(%2)", op);
output_asm_insn ("a\t%2,4(%2)", op);
constants go in the function section; in 64-bit mode in .rodata. */
static void
-s390_select_rtx_section (mode, x, align)
- enum machine_mode mode ATTRIBUTE_UNUSED;
- rtx x ATTRIBUTE_UNUSED;
- unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED;
+s390_select_rtx_section (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx x ATTRIBUTE_UNUSED,
+ unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED)
{
- if (TARGET_64BIT)
+ if (TARGET_CPU_ZARCH)
readonly_data_section ();
else
function_section (current_function_decl);
into its SYMBOL_REF_FLAGS. */
static void
-s390_encode_section_info (decl, rtl, first)
- tree decl;
- rtx rtl;
- int first;
+s390_encode_section_info (tree decl, rtx rtl, int first)
{
default_encode_section_info (decl, rtl, first);
relative to the resulting this pointer. */
static void
-s390_output_mi_thunk (file, thunk, delta, vcall_offset, function)
- FILE *file;
- tree thunk ATTRIBUTE_UNUSED;
- HOST_WIDE_INT delta;
- HOST_WIDE_INT vcall_offset;
- tree function;
+s390_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset,
+ tree function)
{
rtx op[10];
int nonlocal = 0;
}
/* Operand 1 is the 'this' pointer. */
- if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function))))
+ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
op[1] = gen_rtx_REG (Pmode, 3);
else
op[1] = gen_rtx_REG (Pmode, 2);
{
/* Setup literal pool pointer if required. */
if ((!DISP_IN_RANGE (delta)
- && !CONST_OK_FOR_LETTER_P (delta, 'K'))
+ && !CONST_OK_FOR_CONSTRAINT_P (delta, 'K', "K"))
|| (!DISP_IN_RANGE (vcall_offset)
- && !CONST_OK_FOR_LETTER_P (vcall_offset, 'K')))
+ && !CONST_OK_FOR_CONSTRAINT_P (vcall_offset, 'K', "K")))
{
op[5] = gen_label_rtx ();
output_asm_insn ("larl\t%4,%5", op);
/* Add DELTA to this pointer. */
if (delta)
{
- if (CONST_OK_FOR_LETTER_P (delta, 'J'))
+ if (CONST_OK_FOR_CONSTRAINT_P (delta, 'J', "J"))
output_asm_insn ("la\t%1,%2(%1)", op);
else if (DISP_IN_RANGE (delta))
output_asm_insn ("lay\t%1,%2(%1)", op);
- else if (CONST_OK_FOR_LETTER_P (delta, 'K'))
+ else if (CONST_OK_FOR_CONSTRAINT_P (delta, 'K', "K"))
output_asm_insn ("aghi\t%1,%2", op);
else
{
output_asm_insn ("lg\t%4,0(%1)", op);
output_asm_insn ("ag\t%1,%3(%4)", op);
}
- else if (CONST_OK_FOR_LETTER_P (vcall_offset, 'K'))
+ else if (CONST_OK_FOR_CONSTRAINT_P (vcall_offset, 'K', "K"))
{
output_asm_insn ("lghi\t%4,%3", op);
output_asm_insn ("ag\t%4,0(%1)", op);
if (op[5])
{
output_asm_insn (".align\t4", op);
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[5]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[5]));
}
if (op[6])
{
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[6]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[6]));
output_asm_insn (".long\t%2", op);
}
if (op[7])
{
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[7]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[7]));
output_asm_insn (".long\t%3", op);
}
}
/* Setup base pointer if required. */
if (!vcall_offset
|| (!DISP_IN_RANGE (delta)
- && !CONST_OK_FOR_LETTER_P (delta, 'K'))
+ && !CONST_OK_FOR_CONSTRAINT_P (delta, 'K', "K"))
|| (!DISP_IN_RANGE (delta)
- && !CONST_OK_FOR_LETTER_P (vcall_offset, 'K')))
+ && !CONST_OK_FOR_CONSTRAINT_P (vcall_offset, 'K', "K")))
{
op[5] = gen_label_rtx ();
output_asm_insn ("basr\t%4,0", op);
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[5]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[5]));
}
/* Add DELTA to this pointer. */
if (delta)
{
- if (CONST_OK_FOR_LETTER_P (delta, 'J'))
+ if (CONST_OK_FOR_CONSTRAINT_P (delta, 'J', "J"))
output_asm_insn ("la\t%1,%2(%1)", op);
else if (DISP_IN_RANGE (delta))
output_asm_insn ("lay\t%1,%2(%1)", op);
- else if (CONST_OK_FOR_LETTER_P (delta, 'K'))
+ else if (CONST_OK_FOR_CONSTRAINT_P (delta, 'K', "K"))
output_asm_insn ("ahi\t%1,%2", op);
else
{
/* Perform vcall adjustment. */
if (vcall_offset)
{
- if (CONST_OK_FOR_LETTER_P (vcall_offset, 'J'))
+ if (CONST_OK_FOR_CONSTRAINT_P (vcall_offset, 'J', "J"))
{
output_asm_insn ("lg\t%4,0(%1)", op);
output_asm_insn ("a\t%1,%3(%4)", op);
output_asm_insn ("lg\t%4,0(%1)", op);
output_asm_insn ("ay\t%1,%3(%4)", op);
}
- else if (CONST_OK_FOR_LETTER_P (vcall_offset, 'K'))
+ else if (CONST_OK_FOR_CONSTRAINT_P (vcall_offset, 'K', "K"))
{
output_asm_insn ("lhi\t%4,%3", op);
output_asm_insn ("a\t%4,0(%1)", op);
Re-setup the base pointer (with a different base). */
op[5] = gen_label_rtx ();
output_asm_insn ("basr\t%4,0", op);
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[5]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[5]));
}
/* Jump to target. */
SYMBOL_REF_FLAGS (op[0]) = SYMBOL_FLAG_LOCAL;
}
- (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (op[8]));
+ targetm.asm_out.internal_label (file, "L", CODE_LABEL_NUMBER (op[8]));
if (!flag_pic)
output_asm_insn (".long\t%0", op);
else
if (op[6])
{
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[6]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[6]));
output_asm_insn (".long\t%2", op);
}
if (op[7])
{
- (*targetm.asm_out.internal_label) (file, "L",
- CODE_LABEL_NUMBER (op[7]));
+ targetm.asm_out.internal_label (file, "L",
+ CODE_LABEL_NUMBER (op[7]));
output_asm_insn (".long\t%3", op);
}
}
}
bool
-s390_valid_pointer_mode (mode)
- enum machine_mode mode;
+s390_valid_pointer_mode (enum machine_mode mode)
{
return (mode == SImode || (TARGET_64BIT && mode == DImode));
}
/* How to allocate a 'struct machine_function'. */
static struct machine_function *
-s390_init_machine_status ()
+s390_init_machine_status (void)
{
return ggc_alloc_cleared (sizeof (struct machine_function));
}
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