#endif
/* Define the names of the builtin function types and codes. */
-char *built_in_class_names[4]
+const char *const built_in_class_names[4]
= {"NOT_BUILT_IN", "BUILT_IN_FRONTEND", "BUILT_IN_MD", "BUILT_IN_NORMAL"};
-char *built_in_names[(int) END_BUILTINS] =
-{"BUILT_IN_ALLOCA", "BUILT_IN_ABS", "BUILT_IN_FABS", "BUILT_IN_LABS",
- "BUILT_IN_FFS", "BUILT_IN_DIV", "BUILT_IN_LDIV", "BUILT_IN_FFLOOR",
- "BUILT_IN_FCEIL", "BUILT_IN_FMOD", "BUILT_IN_FREM", "BUILT_IN_MEMCPY",
- "BUILT_IN_MEMCMP", "BUILT_IN_MEMSET", "BUILT_IN_STRCPY", "BUILT_IN_STRCMP",
- "BUILT_IN_STRLEN", "BUILT_IN_FSQRT", "BUILT_IN_SIN", "BUILT_IN_COS",
- "BUILT_IN_GETEXP", "BUILT_IN_GETMAN", "BUILT_IN_SAVEREGS",
- "BUILT_IN_CLASSIFY_TYPE", "BUILT_IN_NEXT_ARG", "BUILT_IN_ARGS_INFO",
- "BUILT_IN_CONSTANT_P", "BUILT_IN_FRAME_ADDRESS", "BUILT_IN_RETURN_ADDRESS",
- "BUILT_IN_AGGREGATE_INCOMING_ADDRESS", "BUILT_IN_APPLY_ARGS",
- "BUILT_IN_APPLY", "BUILT_IN_RETURN", "BUILT_IN_SETJMP", "BUILT_IN_LONGJMP",
- "BUILT_IN_TRAP", "BUILT_IN_ISGREATER", "BUILT_IN_ISGREATEREQUAL",
- "BUILT_IN_ISLESS", "BUILT_IN_ISLESSEQUAL", "BUILT_IN_ISLESSGREATER",
- "BUILT_IN_ISUNORDERED", "BUILT_IN_UNWIND_INIT", "BUILT_IN_DWARF_CFA",
- "BUILT_IN_DWARF_FP_REGNUM", "BUILT_IN_INIT_DWARF_REG_SIZES",
- "BUILT_IN_FROB_RETURN_ADDR", "BUILT_IN_EXTRACT_RETURN_ADDR",
- "BUILT_IN_EH_RETURN", "BUILT_IN_VARARGS_START", "BUILT_IN_STDARG_START",
- "BUILT_IN_VA_END", "BUILT_IN_VA_COPY", "BUILT_IN_NEW", "BUILT_IN_VEC_NEW",
- "BUILT_IN_DELETE", "BUILT_IN_VEC_DELETE" };
+#define DEF_BUILTIN(x) STRINGIFY(x),
+const char *const built_in_names[(int) END_BUILTINS] =
+{
+#include "builtins.def"
+};
+#undef DEF_BUILTIN
tree (*lang_type_promotes_to) PARAMS ((tree));
static rtx expand_builtin_memcpy PARAMS ((tree));
static rtx expand_builtin_strcpy PARAMS ((tree));
static rtx expand_builtin_memset PARAMS ((tree));
+static rtx expand_builtin_bzero PARAMS ((tree));
static rtx expand_builtin_strlen PARAMS ((tree, rtx,
enum machine_mode));
static rtx expand_builtin_alloca PARAMS ((tree, rtx));
exp = TREE_OPERAND (exp, 0);
if (TREE_CODE (TREE_TYPE (exp)) != POINTER_TYPE)
return align;
+
inner = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (exp)));
align = MIN (inner, max_align);
break;
/* If sum of pointer + int, restrict our maximum alignment to that
imposed by the integer. If not, we can't do any better than
ALIGN. */
- if (TREE_CODE (TREE_OPERAND (exp, 1)) != INTEGER_CST)
+ if (! host_integerp (TREE_OPERAND (exp, 1), 1))
return align;
- while (((TREE_INT_CST_LOW (TREE_OPERAND (exp, 1)) * BITS_PER_UNIT)
+ while (((tree_low_cst (TREE_OPERAND (exp, 1), 1) * BITS_PER_UNIT)
& (max_align - 1))
!= 0)
max_align >>= 1;
exp = TREE_OPERAND (exp, 0);
if (TREE_CODE (exp) == FUNCTION_DECL)
align = FUNCTION_BOUNDARY;
- else if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'd')
+ else if (DECL_P (exp))
align = DECL_ALIGN (exp);
#ifdef CONSTANT_ALIGNMENT
else if (TREE_CODE_CLASS (TREE_CODE (exp)) == 'c')
/* Create a block where the return registers can be saved. */
result = assign_stack_local (BLKmode, apply_result_size (), -1);
- /* ??? The argsize value should be adjusted here. */
-
/* Fetch the arg pointer from the ARGUMENTS block. */
incoming_args = gen_reg_rtx (Pmode);
emit_move_insn (incoming_args,
haven't figured out how the calling convention macros effect this,
but it's likely that the source and/or destination addresses in
the block copy will need updating in machine specific ways. */
- dest = allocate_dynamic_stack_space (argsize, 0, 0);
+ dest = allocate_dynamic_stack_space (argsize, 0, BITS_PER_UNIT);
emit_block_move (gen_rtx_MEM (BLKmode, dest),
gen_rtx_MEM (BLKmode, incoming_args),
- argsize,
- PARM_BOUNDARY / BITS_PER_UNIT);
+ argsize, PARM_BOUNDARY);
/* Refer to the argument block. */
apply_args_size ();
return 0;
else
{
+ rtx pat;
tree src = TREE_VALUE (arglist);
tree len = c_strlen (src);
int align
= get_pointer_alignment (src, BIGGEST_ALIGNMENT) / BITS_PER_UNIT;
- rtx result, src_rtx, char_rtx;
+ rtx result, src_reg, char_rtx, before_strlen;
enum machine_mode insn_mode = value_mode, char_mode;
enum insn_code icode = CODE_FOR_nothing;
if (align == 0)
return 0;
- /* Call a function if we can't compute strlen in the right mode. */
-
+ /* Bail out if we can't compute strlen in the right mode. */
while (insn_mode != VOIDmode)
{
icode = strlen_optab->handlers[(int) insn_mode].insn_code;
&& REGNO (result) >= FIRST_PSEUDO_REGISTER))
result = gen_reg_rtx (insn_mode);
- /* Make sure the operands are acceptable to the predicates. */
+ /* Make a place to hold the source address. We will not expand
+ the actual source until we are sure that the expansion will
+ not fail -- there are trees that cannot be expanded twice. */
+ src_reg = gen_reg_rtx (Pmode);
- if (! (*insn_data[(int)icode].operand[0].predicate) (result, insn_mode))
- result = gen_reg_rtx (insn_mode);
- src_rtx = memory_address (BLKmode,
- expand_expr (src, NULL_RTX, ptr_mode,
- EXPAND_NORMAL));
-
- if (! (*insn_data[(int)icode].operand[1].predicate) (src_rtx, Pmode))
- src_rtx = copy_to_mode_reg (Pmode, src_rtx);
+ /* Mark the beginning of the strlen sequence so we can emit the
+ source operand later. */
+ before_strlen = get_last_insn();
/* Check the string is readable and has an end. */
if (current_function_check_memory_usage)
emit_library_call (chkr_check_str_libfunc, 1, VOIDmode, 2,
- src_rtx, Pmode,
+ src_reg, Pmode,
GEN_INT (MEMORY_USE_RO),
TYPE_MODE (integer_type_node));
if (! (*insn_data[(int)icode].operand[2].predicate) (char_rtx, char_mode))
char_rtx = copy_to_mode_reg (char_mode, char_rtx);
- emit_insn (GEN_FCN (icode) (result,
- gen_rtx_MEM (BLKmode, src_rtx),
- char_rtx, GEN_INT (align)));
+ pat = GEN_FCN (icode) (result, gen_rtx_MEM (BLKmode, src_reg),
+ char_rtx, GEN_INT (align));
+ if (! pat)
+ return 0;
+ emit_insn (pat);
+
+ /* Now that we are assured of success, expand the source. */
+ start_sequence ();
+ pat = memory_address (BLKmode,
+ expand_expr (src, src_reg, ptr_mode, EXPAND_SUM));
+ if (pat != src_reg)
+ emit_move_insn (src_reg, pat);
+ pat = gen_sequence ();
+ end_sequence ();
+
+ if (before_strlen)
+ emit_insn_after (pat, before_strlen);
+ else
+ emit_insn_before (pat, get_insns ());
/* Return the value in the proper mode for this function. */
if (GET_MODE (result) == value_mode)
- return result;
+ target = result;
else if (target != 0)
- {
- convert_move (target, result, 0);
- return target;
- }
+ convert_move (target, result, 0);
else
- return convert_to_mode (value_mode, result, 0);
+ target = convert_to_mode (value_mode, result, 0);
+
+ return target;
}
}
tree src = TREE_VALUE (TREE_CHAIN (arglist));
tree len = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
- int src_align
- = get_pointer_alignment (src, BIGGEST_ALIGNMENT) / BITS_PER_UNIT;
- int dest_align
- = get_pointer_alignment (dest, BIGGEST_ALIGNMENT) / BITS_PER_UNIT;
+ int src_align = get_pointer_alignment (src, BIGGEST_ALIGNMENT);
+ int dest_align = get_pointer_alignment (dest, BIGGEST_ALIGNMENT);
rtx dest_mem, src_mem, dest_addr, len_rtx;
/* If either SRC or DEST is not a pointer type, don't do
tree val = TREE_VALUE (TREE_CHAIN (arglist));
tree len = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
- int dest_align
- = get_pointer_alignment (dest, BIGGEST_ALIGNMENT) / BITS_PER_UNIT;
+ int dest_align = get_pointer_alignment (dest, BIGGEST_ALIGNMENT);
rtx dest_mem, dest_addr, len_rtx;
/* If DEST is not a pointer type, don't do this
}
}
+/* Expand expression EXP, which is a call to the bzero builtin. Return 0
+ if we failed the caller should emit a normal call. */
+static rtx
+expand_builtin_bzero (exp)
+ tree exp;
+{
+ tree arglist = TREE_OPERAND (exp, 1);
+ tree dest, size, newarglist;
+ rtx result;
+
+ if (arglist == 0
+ /* Arg could be non-pointer if user redeclared this fcn wrong. */
+ || TREE_CODE (TREE_TYPE (dest = TREE_VALUE (arglist))) != POINTER_TYPE
+ || TREE_CHAIN (arglist) == 0
+ || (TREE_CODE (TREE_TYPE (size = TREE_VALUE (TREE_CHAIN (arglist))))
+ != INTEGER_TYPE))
+ return NULL_RTX;
+
+ /* New argument list transforming bzero(ptr x, int y) to
+ memset(ptr x, int 0, size_t y). */
+
+ newarglist = build_tree_list (NULL_TREE, convert (sizetype, size));
+ newarglist = tree_cons (NULL_TREE, integer_zero_node, newarglist);
+ newarglist = tree_cons (NULL_TREE, dest, newarglist);
+
+ TREE_OPERAND (exp, 1) = newarglist;
+ result = expand_builtin_memset(exp);
+
+ /* Always restore the original arguments. */
+ TREE_OPERAND (exp, 1) = arglist;
+
+ return result;
+}
+
#ifdef HAVE_cmpstrsi
/* Expand expression EXP, which is a call to the memcmp or the strcmp builtin.
ARGLIST is the argument list for this call. Return 0 if we failed and the
from multiple evaluations. */
static tree
-stabilize_va_list (valist, was_ptr)
+stabilize_va_list (valist, needs_lvalue)
tree valist;
- int was_ptr;
+ int needs_lvalue;
{
if (TREE_CODE (va_list_type_node) == ARRAY_TYPE)
{
- /* If stdarg.h took the address of an array-type valist that was passed
- as a parameter, we'll have taken the address of the parameter itself
- rather than the array as we'd intended. Undo this mistake. */
+ if (TREE_SIDE_EFFECTS (valist))
+ valist = save_expr (valist);
- if (was_ptr)
+ /* For this case, the backends will be expecting a pointer to
+ TREE_TYPE (va_list_type_node), but it's possible we've
+ actually been given an array (an actual va_list_type_node).
+ So fix it. */
+ if (TREE_CODE (TREE_TYPE (valist)) == ARRAY_TYPE)
{
- STRIP_NOPS (valist);
-
- /* Two cases: either &array, which decomposed to
- <ptr <array <record> valist>>
- or &ptr, which turned into
- <ptr <ptr <record>>>
- In the first case we'll need to put the ADDR_EXPR back
- after frobbing the types as if &array[0]. */
-
- if (TREE_CODE (valist) != ADDR_EXPR)
- abort ();
- valist = TREE_OPERAND (valist, 0);
- }
+ tree p1 = build_pointer_type (TREE_TYPE (va_list_type_node));
+ tree p2 = build_pointer_type (va_list_type_node);
- if (TYPE_MAIN_VARIANT (TREE_TYPE (valist))
- == TYPE_MAIN_VARIANT (va_list_type_node))
- {
- tree pt = build_pointer_type (TREE_TYPE (va_list_type_node));
- valist = build1 (ADDR_EXPR, pt, valist);
- TREE_SIDE_EFFECTS (valist)
- = TREE_SIDE_EFFECTS (TREE_OPERAND (valist, 0));
- }
- else
- {
- if (! POINTER_TYPE_P (TREE_TYPE (valist))
- || (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (valist)))
- != TYPE_MAIN_VARIANT (TREE_TYPE (va_list_type_node))))
- abort ();
+ valist = build1 (ADDR_EXPR, p2, valist);
+ valist = fold (build1 (NOP_EXPR, p1, valist));
}
-
- if (TREE_SIDE_EFFECTS (valist))
- valist = save_expr (valist);
}
else
{
- if (! was_ptr)
- {
- tree pt;
+ tree pt;
+ if (! needs_lvalue)
+ {
if (! TREE_SIDE_EFFECTS (valist))
return valist;
-
+
pt = build_pointer_type (va_list_type_node);
- valist = fold (build1 (ADDR_EXPR, pt, valist));
+ valist = fold (build1 (ADDR_EXPR, pt, valist));
TREE_SIDE_EFFECTS (valist) = 1;
}
+
if (TREE_SIDE_EFFECTS (valist))
- valist = save_expr (valist);
+ valist = save_expr (valist);
valist = fold (build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (valist)),
valist));
}
MEM_ALIAS_SET (srcb) = get_alias_set (TREE_TYPE (TREE_TYPE (src)));
/* Copy. */
- emit_block_move (dstb, srcb, size,
- TYPE_ALIGN (va_list_type_node) / BITS_PER_UNIT);
+ emit_block_move (dstb, srcb, size, TYPE_ALIGN (va_list_type_node));
}
return const0_rtx;
&& (fcode == BUILT_IN_SIN || fcode == BUILT_IN_COS
|| fcode == BUILT_IN_FSQRT || fcode == BUILT_IN_MEMSET
|| fcode == BUILT_IN_MEMCPY || fcode == BUILT_IN_MEMCMP
+ || fcode == BUILT_IN_BCMP || fcode == BUILT_IN_BZERO
|| fcode == BUILT_IN_STRLEN || fcode == BUILT_IN_STRCPY
|| fcode == BUILT_IN_STRCMP || fcode == BUILT_IN_FFS))
return expand_call (exp, target, ignore);
return target;
break;
+ case BUILT_IN_BZERO:
+ target = expand_builtin_bzero (exp);
+ if (target)
+ return target;
+ break;
+
/* These comparison functions need an instruction that returns an actual
index. An ordinary compare that just sets the condition codes
is not enough. */
return target;
break;
+ case BUILT_IN_BCMP:
case BUILT_IN_MEMCMP:
target = expand_builtin_memcmp (exp, arglist, target);
if (target)
break;
#else
case BUILT_IN_STRCMP:
+ case BUILT_IN_BCMP:
case BUILT_IN_MEMCMP:
break;
#endif
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