#include "target.h"
#include "target-def.h"
-static int hppa_use_dfa_pipeline_interface (void);
-
-#undef TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE
-#define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE hppa_use_dfa_pipeline_interface
-
-static int
-hppa_use_dfa_pipeline_interface (void)
-{
- return 1;
-}
-
/* Return nonzero if there is a bypass for the output of
OUT_INSN and the fp store IN_INSN. */
int
#endif
static void copy_reg_pointer (rtx, rtx);
+static void fix_range (const char *);
static int hppa_address_cost (rtx);
static bool hppa_rtx_costs (rtx, int, int, int *);
static inline rtx force_mode (enum machine_mode, rtx);
static int forward_branch_p (rtx);
static int shadd_constant_p (int);
static void compute_zdepwi_operands (unsigned HOST_WIDE_INT, unsigned *);
-static int compute_movstr_length (rtx);
-static int compute_clrstr_length (rtx);
+static int compute_movmem_length (rtx);
+static int compute_clrmem_length (rtx);
static bool pa_assemble_integer (rtx, unsigned int, int);
static void remove_useless_addtr_insns (int);
static void store_reg (int, HOST_WIDE_INT, int);
#endif
static void pa_init_builtins (void);
static rtx hppa_builtin_saveregs (void);
+static tree hppa_gimplify_va_arg_expr (tree, tree, tree *, tree *);
static void copy_fp_args (rtx) ATTRIBUTE_UNUSED;
static int length_fp_args (rtx) ATTRIBUTE_UNUSED;
static struct deferred_plabel *get_plabel (const char *)
static void pa_hpux_init_libfuncs (void);
#endif
static rtx pa_struct_value_rtx (tree, int);
+static bool pa_pass_by_reference (CUMULATIVE_ARGS *ca, enum machine_mode,
+ tree, bool);
+static struct machine_function * pa_init_machine_status (void);
+
/* Save the operands last given to a compare for use when we
generate a scc or bcc insn. */
rtx hppa_compare_op0, hppa_compare_op1;
enum cmp_type hppa_branch_type;
-/* Which cpu we are scheduling for. */
-enum processor_type pa_cpu;
-
-/* String to hold which cpu we are scheduling for. */
-const char *pa_cpu_string;
-
/* Which architecture we are generating code for. */
enum architecture_type pa_arch;
/* String to hold which architecture we are generating code for. */
const char *pa_arch_string;
+/* String used with the -mfixed-range= option. */
+const char *pa_fixed_range_string;
+
+/* Which cpu we are scheduling for. */
+enum processor_type pa_cpu;
+
+/* String to hold which cpu we are scheduling for. */
+const char *pa_cpu_string;
+
/* Counts for the number of callee-saved general and floating point
registers which were saved by the current function's prologue. */
static int gr_saved, fr_saved;
#define TARGET_STRUCT_VALUE_RTX pa_struct_value_rtx
#undef TARGET_RETURN_IN_MEMORY
#define TARGET_RETURN_IN_MEMORY pa_return_in_memory
+#undef TARGET_MUST_PASS_IN_STACK
+#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size
+#undef TARGET_PASS_BY_REFERENCE
+#define TARGET_PASS_BY_REFERENCE pa_pass_by_reference
#undef TARGET_EXPAND_BUILTIN_SAVEREGS
#define TARGET_EXPAND_BUILTIN_SAVEREGS hppa_builtin_saveregs
+#undef TARGET_GIMPLIFY_VA_ARG_EXPR
+#define TARGET_GIMPLIFY_VA_ARG_EXPR hppa_gimplify_va_arg_expr
struct gcc_target targetm = TARGET_INITIALIZER;
\f
+/* Parse the -mfixed-range= option string. */
+
+static void
+fix_range (const char *const_str)
+{
+ int i, first, last;
+ char *str, *dash, *comma;
+
+ /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and
+ REG2 are either register names or register numbers. The effect
+ of this option is to mark the registers in the range from REG1 to
+ REG2 as ``fixed'' so they won't be used by the compiler. This is
+ used, e.g., to ensure that kernel mode code doesn't use f32-f127. */
+
+ i = strlen (const_str);
+ str = (char *) alloca (i + 1);
+ memcpy (str, const_str, i + 1);
+
+ while (1)
+ {
+ dash = strchr (str, '-');
+ if (!dash)
+ {
+ warning ("value of -mfixed-range must have form REG1-REG2");
+ return;
+ }
+ *dash = '\0';
+
+ comma = strchr (dash + 1, ',');
+ if (comma)
+ *comma = '\0';
+
+ first = decode_reg_name (str);
+ if (first < 0)
+ {
+ warning ("unknown register name: %s", str);
+ return;
+ }
+
+ last = decode_reg_name (dash + 1);
+ if (last < 0)
+ {
+ warning ("unknown register name: %s", dash + 1);
+ return;
+ }
+
+ *dash = '-';
+
+ if (first > last)
+ {
+ warning ("%s-%s is an empty range", str, dash + 1);
+ return;
+ }
+
+ for (i = first; i <= last; ++i)
+ fixed_regs[i] = call_used_regs[i] = 1;
+
+ if (!comma)
+ break;
+
+ *comma = ',';
+ str = comma + 1;
+ }
+
+ /* Check if all floating point registers have been fixed. */
+ for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++)
+ if (!fixed_regs[i])
+ break;
+
+ if (i > FP_REG_LAST)
+ target_flags |= MASK_DISABLE_FPREGS;
+}
+
void
override_options (void)
{
warning ("unknown -mschedule= option (%s).\nValid options are 700, 7100, 7100LC, 7200, 7300, and 8000\n", pa_cpu_string);
}
- /* Set the instruction set architecture. */
+ /* Set the instruction architecture. */
if (pa_arch_string && ! strcmp (pa_arch_string, "1.0"))
{
pa_arch_string = "1.0";
warning ("unknown -march= option (%s).\nValid options are 1.0, 1.1, and 2.0\n", pa_arch_string);
}
+ if (pa_fixed_range_string)
+ fix_range (pa_fixed_range_string);
+
/* Unconditional branches in the delay slot are not compatible with dwarf2
call frame information. There is no benefit in using this optimization
on PA8000 and later processors. */
targetm.asm_out.unaligned_op.si = NULL;
targetm.asm_out.unaligned_op.di = NULL;
}
+
+ init_machine_status = pa_init_machine_status;
}
static void
#endif
}
+/* Function to init struct machine_function.
+ This will be called, via a pointer variable,
+ from push_function_context. */
+
+static struct machine_function *
+pa_init_machine_status (void)
+{
+ return ggc_alloc_cleared (sizeof (machine_function));
+}
+
/* If FROM is a probable pointer register, mark TO as a probable
pointer register with the same pointer alignment as FROM. */
if (register_operand (op, mode))
return 1;
- if (GET_CODE (op) == CONSTANT_P_RTX)
- return 1;
-
if (GET_CODE (op) == CONST_INT)
return cint_ok_for_move (INTVAL (op));
return memory_address_p (mode, XEXP (op, 0));
}
+/* Accept anything that can be used as the source operand for a prefetch
+ instruction. */
+int
+prefetch_operand (rtx op, enum machine_mode mode)
+{
+ if (GET_CODE (op) != MEM)
+ return 0;
+
+ /* Until problems with management of the REG_POINTER flag are resolved,
+ we need to delay creating prefetch insns with unscaled indexed addresses
+ until CSE is not expected. */
+ if (!TARGET_NO_SPACE_REGS
+ && !cse_not_expected
+ && GET_CODE (XEXP (op, 0)) == PLUS
+ && REG_P (XEXP (XEXP (op, 0), 0))
+ && REG_P (XEXP (XEXP (op, 0), 1)))
+ return 0;
+
+ return memory_address_p (mode, XEXP (op, 0));
+}
+
/* Accept REG and any CONST_INT that can be moved in one instruction into a
general register. */
int
gen_rtx_LO_SUM (Pmode, tmp_reg,
gen_rtx_UNSPEC (Pmode,
gen_rtvec (1, orig),
- 0)));
+ UNSPEC_DLTIND14R)));
current_function_uses_pic_offset_table = 1;
MEM_NOTRAP_P (pic_ref) = 1;
if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == MULT
&& GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT
&& shadd_constant_p (INTVAL (XEXP (XEXP (x, 0), 1)))
- && (GET_RTX_CLASS (GET_CODE (XEXP (x, 1))) == 'o'
+ && (OBJECT_P (XEXP (x, 1))
|| GET_CODE (XEXP (x, 1)) == SUBREG)
&& GET_CODE (XEXP (x, 1)) != CONST)
{
We have to do this because the REG_POINTER flag is not correctly
carried through various optimization passes and CSE may substitute
a pseudo without the pointer set for one with the pointer set. As
- a result, we loose various opportunites to create insns with
+ a result, we loose various opportunities to create insns with
unscaled indexed addresses. */
if (!TARGET_NO_SPACE_REGS
&& !cse_not_expected
operand1 = gen_rtx_MEM (GET_MODE (operand1), tem);
/* Handle secondary reloads for loads/stores of FP registers from
- REG+D addresses where D does not fit in 5 bits, including
+ REG+D addresses where D does not fit in 5 or 14 bits, including
(subreg (mem (addr))) cases. */
if (scratch_reg
&& fp_reg_operand (operand0, mode)
&& ((GET_CODE (operand1) == MEM
- && !memory_address_p (DFmode, XEXP (operand1, 0)))
+ && !memory_address_p ((GET_MODE_SIZE (mode) == 4 ? SFmode : DFmode),
+ XEXP (operand1, 0)))
|| ((GET_CODE (operand1) == SUBREG
&& GET_CODE (XEXP (operand1, 0)) == MEM
- && !memory_address_p (DFmode, XEXP (XEXP (operand1, 0), 0))))))
+ && !memory_address_p ((GET_MODE_SIZE (mode) == 4
+ ? SFmode : DFmode),
+ XEXP (XEXP (operand1, 0), 0))))))
{
if (GET_CODE (operand1) == SUBREG)
operand1 = XEXP (operand1, 0);
else if (scratch_reg
&& fp_reg_operand (operand1, mode)
&& ((GET_CODE (operand0) == MEM
- && ! memory_address_p (DFmode, XEXP (operand0, 0)))
+ && !memory_address_p ((GET_MODE_SIZE (mode) == 4
+ ? SFmode : DFmode),
+ XEXP (operand0, 0)))
|| ((GET_CODE (operand0) == SUBREG)
&& GET_CODE (XEXP (operand0, 0)) == MEM
- && !memory_address_p (DFmode,
+ && !memory_address_p ((GET_MODE_SIZE (mode) == 4
+ ? SFmode : DFmode),
XEXP (XEXP (operand0, 0), 0)))))
{
if (GET_CODE (operand0) == SUBREG)
operands[1] = force_const_mem (mode, operand1);
operands[1] = legitimize_pic_address (XEXP (operands[1], 0),
mode, temp);
+ operands[1] = gen_rtx_MEM (mode, operands[1]);
emit_move_sequence (operands, mode, temp);
}
else
\f
/* Return the best assembler insn template
- for moving operands[1] into operands[0] as a fullword. */
+ for moving operands[1] into operands[0] as a fullword. */
const char *
singlemove_string (rtx *operands)
{
OPERANDS[3] is a register for temporary storage.
OPERANDS[4] is the size as a CONST_INT
OPERANDS[5] is the alignment safe to use, as a CONST_INT.
- OPERANDS[6] is another temporary register. */
+ OPERANDS[6] is another temporary register. */
const char *
output_block_move (rtx *operands, int size_is_constant ATTRIBUTE_UNUSED)
count insns rather than emit them. */
static int
-compute_movstr_length (rtx insn)
+compute_movmem_length (rtx insn)
{
rtx pat = PATTERN (insn);
unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 7), 0));
count insns rather than emit them. */
static int
-compute_clrstr_length (rtx insn)
+compute_clrmem_length (rtx insn)
{
rtx pat = PATTERN (insn);
unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 4), 0));
{
int i;
int chars_output;
- unsigned char partial_output[16]; /* Max space 4 chars can occupy. */
+ unsigned char partial_output[16]; /* Max space 4 chars can occupy. */
/* The HP assembler can only take strings of 256 characters at one
time. This is a limitation on input line length, *not* the
fputs ("\t.EXIT\n\t.PROCEND\n", file);
+ if (TARGET_SOM && TARGET_GAS)
+ {
+ /* We done with this subspace except possibly for some additional
+ debug information. Forget that we are in this subspace to ensure
+ that the next function is output in its own subspace. */
+ forget_section ();
+ }
+
if (INSN_ADDRESSES_SET_P ())
{
insn = get_last_nonnote_insn ();
&& GET_CODE (XEXP (XVECEXP (pat, 0, 0), 1)) == MEM
&& GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode
&& GET_MODE (XEXP (XVECEXP (pat, 0, 0), 1)) == BLKmode)
- return compute_movstr_length (insn) - 4;
+ return compute_movmem_length (insn) - 4;
/* Block clear pattern. */
else if (GET_CODE (insn) == INSN
&& GET_CODE (pat) == PARALLEL
&& GET_CODE (XEXP (XVECEXP (pat, 0, 0), 0)) == MEM
&& XEXP (XVECEXP (pat, 0, 0), 1) == const0_rtx
&& GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode)
- return compute_clrstr_length (insn) - 4;
+ return compute_clrmem_length (insn) - 4;
/* Conditional branch with an unfilled delay slot. */
else if (GET_CODE (insn) == JUMP_INSN && ! simplejump_p (insn))
{
set_optab_libfunc (ge_optab, TFmode, "_U_Qfge");
set_optab_libfunc (lt_optab, TFmode, "_U_Qflt");
set_optab_libfunc (le_optab, TFmode, "_U_Qfle");
+ set_optab_libfunc (unord_optab, TFmode, "_U_Qfunord");
set_conv_libfunc (sext_optab, TFmode, SFmode, "_U_Qfcnvff_sgl_to_quad");
set_conv_libfunc (sext_optab, TFmode, DFmode, "_U_Qfcnvff_dbl_to_quad");
emit_move_insn (gen_rtx_REG (SImode, 26), operands[1]);
emit
- (gen_rtx
- (PARALLEL, VOIDmode,
+ (gen_rtx_PARALLEL
+ (VOIDmode,
gen_rtvec (6, gen_rtx_SET (VOIDmode, gen_rtx_REG (SImode, 29),
gen_rtx_fmt_ee (unsignedp ? UDIV : DIV,
SImode,
return NO_REGS;
}
+/* In the 32-bit runtime, arguments larger than eight bytes are passed
+ by invisible reference. As a GCC extension, we also pass anything
+ with a zero or variable size by reference.
+
+ The 64-bit runtime does not describe passing any types by invisible
+ reference. The internals of GCC can't currently handle passing
+ empty structures, and zero or variable length arrays when they are
+ not passed entirely on the stack or by reference. Thus, as a GCC
+ extension, we pass these types by reference. The HP compiler doesn't
+ support these types, so hopefully there shouldn't be any compatibility
+ issues. This may have to be revisited when HP releases a C99 compiler
+ or updates the ABI. */
+
+static bool
+pa_pass_by_reference (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+ enum machine_mode mode, tree type,
+ bool named ATTRIBUTE_UNUSED)
+{
+ HOST_WIDE_INT size;
+
+ if (type)
+ size = int_size_in_bytes (type);
+ else
+ size = GET_MODE_SIZE (mode);
+
+ if (TARGET_64BIT)
+ return size <= 0;
+ else
+ return size <= 0 || size > 8;
+}
+
enum direction
function_arg_padding (enum machine_mode mode, tree type)
{
std_expand_builtin_va_start (valist, nextarg);
}
-rtx
-hppa_va_arg (tree valist, tree type)
+static tree
+hppa_gimplify_va_arg_expr (tree valist, tree type, tree *pre_p, tree *post_p)
{
- HOST_WIDE_INT size = int_size_in_bytes (type);
- HOST_WIDE_INT ofs;
- tree t, ptr, pptr;
-
if (TARGET_64BIT)
{
- /* Every argument in PA64 is supposed to be passed by value
- (including large structs). However, as a GCC extension, we
- pass zero and variable sized arguments by reference. Empty
- structures are a GCC extension not supported by the HP
- compilers. Thus, passing them by reference isn't likely
- to conflict with the ABI. For variable sized arguments,
- GCC doesn't have the infrastructure to allocate these to
- registers. */
-
- /* Arguments with a size greater than 8 must be aligned 0 MOD 16. */
-
- if (size > UNITS_PER_WORD)
- {
- t = build (PLUS_EXPR, TREE_TYPE (valist), valist,
- build_int_2 (2 * UNITS_PER_WORD - 1, 0));
- t = build (BIT_AND_EXPR, TREE_TYPE (t), t,
- build_int_2 (-2 * UNITS_PER_WORD, -1));
- t = build (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
- TREE_SIDE_EFFECTS (t) = 1;
- expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
- }
-
- if (size > 0)
- return std_expand_builtin_va_arg (valist, type);
- else
- {
- ptr = build_pointer_type (type);
-
- /* Args grow upward. */
- t = build (POSTINCREMENT_EXPR, TREE_TYPE (valist), valist,
- build_int_2 (POINTER_SIZE / BITS_PER_UNIT, 0));
- TREE_SIDE_EFFECTS (t) = 1;
-
- pptr = build_pointer_type (ptr);
- t = build1 (NOP_EXPR, pptr, t);
- TREE_SIDE_EFFECTS (t) = 1;
-
- t = build1 (INDIRECT_REF, ptr, t);
- TREE_SIDE_EFFECTS (t) = 1;
- }
+ /* Args grow upward. We can use the generic routines. */
+ return std_gimplify_va_arg_expr (valist, type, pre_p, post_p);
}
else /* !TARGET_64BIT */
{
- ptr = build_pointer_type (type);
+ tree ptr = build_pointer_type (type);
+ tree valist_type;
+ tree t, u;
+ unsigned int size, ofs;
+ bool indirect;
- /* "Large" and variable sized types are passed by reference. */
- if (size > 8 || size <= 0)
+ indirect = pass_by_reference (NULL, TYPE_MODE (type), type, 0);
+ if (indirect)
{
- /* Args grow downward. */
- t = build (PREDECREMENT_EXPR, TREE_TYPE (valist), valist,
- build_int_2 (POINTER_SIZE / BITS_PER_UNIT, 0));
- TREE_SIDE_EFFECTS (t) = 1;
-
- pptr = build_pointer_type (ptr);
- t = build1 (NOP_EXPR, pptr, t);
- TREE_SIDE_EFFECTS (t) = 1;
-
- t = build1 (INDIRECT_REF, ptr, t);
- TREE_SIDE_EFFECTS (t) = 1;
+ type = ptr;
+ ptr = build_pointer_type (type);
}
- else
- {
- t = build (PLUS_EXPR, TREE_TYPE (valist), valist,
- build_int_2 (-size, -1));
+ size = int_size_in_bytes (type);
+ valist_type = TREE_TYPE (valist);
- /* Copied from va-pa.h, but we probably don't need to align to
- word size, since we generate and preserve that invariant. */
- t = build (BIT_AND_EXPR, TREE_TYPE (valist), t,
- build_int_2 ((size > 4 ? -8 : -4), -1));
+ /* Args grow down. Not handled by generic routines. */
- t = build (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
- TREE_SIDE_EFFECTS (t) = 1;
+ u = fold_convert (valist_type, size_in_bytes (type));
+ t = build (MINUS_EXPR, valist_type, valist, u);
- ofs = (8 - size) % 4;
- if (ofs)
- {
- t = build (PLUS_EXPR, TREE_TYPE (valist), t,
- build_int_2 (ofs, 0));
- TREE_SIDE_EFFECTS (t) = 1;
- }
+ /* Copied from va-pa.h, but we probably don't need to align to
+ word size, since we generate and preserve that invariant. */
+ u = build_int_2 ((size > 4 ? -8 : -4), -1);
+ u = fold_convert (valist_type, u);
+ t = build (BIT_AND_EXPR, valist_type, t, u);
- t = build1 (NOP_EXPR, ptr, t);
- TREE_SIDE_EFFECTS (t) = 1;
+ t = build (MODIFY_EXPR, valist_type, valist, t);
+
+ ofs = (8 - size) % 4;
+ if (ofs != 0)
+ {
+ u = fold_convert (valist_type, size_int (ofs));
+ t = build (PLUS_EXPR, valist_type, t, u);
}
- }
- /* Calculate! */
- return expand_expr (t, NULL_RTX, VOIDmode, EXPAND_NORMAL);
-}
+ t = fold_convert (ptr, t);
+ t = build_fold_indirect_ref (t);
+ if (indirect)
+ t = build_fold_indirect_ref (t);
+ return t;
+ }
+}
/* This routine handles all the normal conditional branch sequences we
might need to generate. It handles compare immediate vs compare
else
{
/* Reload loop counter from memory, the store back to memory
- happens in the branch's delay slot. */
+ happens in the branch's delay slot. */
output_asm_insn ("ldw %0,%4", operands);
if (get_attr_length (insn) == 12)
return "addib,%C2 %1,%4,%3\n\tstw %4,%0";
else if (which_alternative == 2)
{
/* Reload loop counter from memory, the store back to memory
- happens in the branch's delay slot. */
+ happens in the branch's delay slot. */
if (get_attr_length (insn) == 8)
return "{comb|cmpb},%S2 %%r0,%1,%3\n\tstw %1,%0";
else
if (get_attr_length (insn) == 8)
return "{comb|cmpb},%S2 %%r0,%1,%3\n\tmtsar %r1";
else
- return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tbl %3\n\tmtsar %r1";
+ return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\tmtsar %r1";
}
}
No need to check target flags as the length uniquely identifies
the remaining cases. */
if (attr_length_indirect_call (insn) == 8)
- return ".CALL\tARGW0=GR\n\t{bl|b,l} $$dyncall,%%r31\n\tcopy %%r31,%%r2";
+ {
+ /* The HP linker substitutes a BLE for millicode calls using
+ the short PIC PCREL form. Thus, we must use %r31 as the
+ link register when generating PA 1.x code. */
+ if (TARGET_PA_20)
+ return ".CALL\tARGW0=GR\n\tb,l $$dyncall,%%r2\n\tcopy %%r2,%%r31";
+ else
+ return ".CALL\tARGW0=GR\n\tbl $$dyncall,%%r31\n\tcopy %%r31,%%r2";
+ }
/* Long millicode call, but we are not generating PIC or portable runtime
code. */
fprintf (file, "\t.align 4\n");
ASM_OUTPUT_LABEL (file, label);
fprintf (file, "\t.word P'%s\n", fname);
- function_section (thunk_fndecl);
}
+ else if (TARGET_SOM && TARGET_GAS)
+ forget_section ();
current_thunk_number++;
nbytes = ((nbytes + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)
}
#endif
+/* This function places uninitialized global data in the bss section.
+ The ASM_OUTPUT_ALIGNED_BSS macro needs to be defined to call this
+ function on the SOM port to prevent uninitialized global data from
+ being placed in the data section. */
+
+void
+pa_asm_output_aligned_bss (FILE *stream,
+ const char *name,
+ unsigned HOST_WIDE_INT size,
+ unsigned int align)
+{
+ bss_section ();
+ fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
+
+#ifdef ASM_OUTPUT_TYPE_DIRECTIVE
+ ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "object");
+#endif
+
+#ifdef ASM_OUTPUT_SIZE_DIRECTIVE
+ ASM_OUTPUT_SIZE_DIRECTIVE (stream, name, size);
+#endif
+
+ fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
+ ASM_OUTPUT_LABEL (stream, name);
+ fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size);
+}
+
+/* Both the HP and GNU assemblers under HP-UX provide a .comm directive
+ that doesn't allow the alignment of global common storage to be directly
+ specified. The SOM linker aligns common storage based on the rounded
+ value of the NUM_BYTES parameter in the .comm directive. It's not
+ possible to use the .align directive as it doesn't affect the alignment
+ of the label associated with a .comm directive. */
+
+void
+pa_asm_output_aligned_common (FILE *stream,
+ const char *name,
+ unsigned HOST_WIDE_INT size,
+ unsigned int align)
+{
+ bss_section ();
+
+ assemble_name (stream, name);
+ fprintf (stream, "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n",
+ MAX (size, align / BITS_PER_UNIT));
+}
+
+/* We can't use .comm for local common storage as the SOM linker effectively
+ treats the symbol as universal and uses the same storage for local symbols
+ with the same name in different object files. The .block directive
+ reserves an uninitialized block of storage. However, it's not common
+ storage. Fortunately, GCC never requests common storage with the same
+ name in any given translation unit. */
+
+void
+pa_asm_output_aligned_local (FILE *stream,
+ const char *name,
+ unsigned HOST_WIDE_INT size,
+ unsigned int align)
+{
+ bss_section ();
+ fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT);
+
+#ifdef LOCAL_ASM_OP
+ fprintf (stream, "%s", LOCAL_ASM_OP);
+ assemble_name (stream, name);
+ fprintf (stream, "\n");
+#endif
+
+ ASM_OUTPUT_LABEL (stream, name);
+ fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size);
+}
+
/* Returns 1 if the 6 operands specified in OPERANDS are suitable for
use in fmpysub instructions. */
int
markers disables output of the branch table to readonly memory,
and any alignment directives that might be needed. Possibly,
the begin_brtab insn should be output before the label for the
- table. This doesn matter at the moment since the tables are
+ table. This doesn't matter at the moment since the tables are
always output in the text section. */
for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
{
/* Structures 5 to 8 bytes in size are passed in the general
registers in the same manner as other non floating-point
objects. The data is right-justified and zero-extended
- to 64 bits.
-
- This is magic. Normally, using a PARALLEL results in left
- justified data on a big-endian target. However, using a
- single double-word register provides the required right
- justification for 5 to 8 byte structures. This has nothing
- to do with the direction of padding specified for the argument.
- It has to do with how the data is widened and shifted into
- and from the register.
-
- Aside from adding load_multiple and store_multiple patterns,
- this is the only way that I have found to obtain right
- justification of BLKmode data when it has a size greater
- than one word. Splitting the operation into two SImode loads
- or returning a DImode REG results in left justified data. */
+ to 64 bits. This is opposite to the normal justification
+ used on big endian targets and requires special treatment.
+ We now define BLOCK_REG_PADDING to pad these objects. */
if (mode == BLKmode)
{
rtx loc = gen_rtx_EXPR_LIST (VOIDmode,
|| GET_CODE (op) == LEU));
}
+#ifndef ONE_ONLY_TEXT_SECTION_ASM_OP
+#define ONE_ONLY_TEXT_SECTION_ASM_OP ""
+#endif
+
+#ifndef NEW_TEXT_SECTION_ASM_OP
+#define NEW_TEXT_SECTION_ASM_OP ""
+#endif
+
+#ifndef DEFAULT_TEXT_SECTION_ASM_OP
+#define DEFAULT_TEXT_SECTION_ASM_OP ""
+#endif
+
+/* Select and return a TEXT_SECTION_ASM_OP for the current function.
+
+ This function is only used with SOM. Because we don't support
+ named subspaces, we can only create a new subspace or switch back
+ into the default text subspace. */
+const char *
+som_text_section_asm_op (void)
+{
+ if (TARGET_SOM && TARGET_GAS)
+ {
+ if (cfun && !cfun->machine->in_nsubspa)
+ {
+ /* We only want to emit a .nsubspa directive once at the
+ start of the function. */
+ cfun->machine->in_nsubspa = 1;
+
+ /* Create a new subspace for the text. This provides
+ better stub placement and one-only functions. */
+ if (cfun->decl
+ && DECL_ONE_ONLY (cfun->decl)
+ && !DECL_WEAK (cfun->decl))
+ return ONE_ONLY_TEXT_SECTION_ASM_OP;
+
+ return NEW_TEXT_SECTION_ASM_OP;
+ }
+ else
+ {
+ /* There isn't a current function or the body of the current
+ function has been completed. So, we are changing to the
+ text section to output debugging information. Do this in
+ the default text section. We need to forget that we are
+ in the text section so that text_section will call us the
+ next time around. */
+ forget_section ();
+ }
+ }
+
+ return DEFAULT_TEXT_SECTION_ASM_OP;
+}
+
/* On hpux10, the linker will give an error if we have a reference
in the read-only data section to a symbol defined in a shared
library. Therefore, expressions that might require a reloc can
&& (DECL_INITIAL (exp) == error_mark_node
|| TREE_CONSTANT (DECL_INITIAL (exp)))
&& !reloc)
- readonly_data_section ();
+ {
+ if (TARGET_SOM
+ && DECL_ONE_ONLY (exp)
+ && !DECL_WEAK (exp))
+ one_only_readonly_data_section ();
+ else
+ readonly_data_section ();
+ }
else if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'c'
- && !(TREE_CODE (exp) == STRING_CST && flag_writable_strings)
&& !reloc)
readonly_data_section ();
+ else if (TARGET_SOM
+ && TREE_CODE (exp) == VAR_DECL
+ && DECL_ONE_ONLY (exp)
+ && !DECL_WEAK (exp)
+ && DECL_INITIAL (exp))
+ one_only_data_section ();
else
data_section ();
}
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