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* builtins. (expand_builtin_alloca): Remove second parameter and

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infer its value from the first parameter instead.
	(expand_builtin) <BUILT_IN_ALLOCA>: Adjust call to above.

From-SVN: r248818
This commit is contained in:
Eric Botcazou 2017-06-02 09:57:40 +00:00 • committed by Eric Botcazou
parent 1c26adb74d
commit b7e52782f6
2 changed files with 14 additions and 10 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-06-02 Eric Botcazou <ebotcazou@adacore.com>
* builtins. (expand_builtin_alloca): Remove second parameter and
infer its value from the first parameter instead.
(expand_builtin) <BUILT_IN_ALLOCA>: Adjust call to above.
2017-06-02 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/80903

18
gcc/builtins.c
View file

@ -140,7 +140,7 @@ static rtx expand_builtin_memset_with_bounds (tree, rtx, machine_mode);
static rtx expand_builtin_memset_args (tree, tree, tree, rtx, machine_mode, tree);
static rtx expand_builtin_bzero (tree);
static rtx expand_builtin_strlen (tree, rtx, machine_mode);
static rtx expand_builtin_alloca (tree, bool);
static rtx expand_builtin_alloca (tree);
static rtx expand_builtin_unop (machine_mode, tree, rtx, rtx, optab);
static rtx expand_builtin_frame_address (tree, tree);
static tree stabilize_va_list_loc (location_t, tree, int);
@ -4914,11 +4914,10 @@ expand_builtin_frame_address (tree fndecl, tree exp)
}
/* Expand EXP, a call to the alloca builtin. Return NULL_RTX if we
failed and the caller should emit a normal call. CANNOT_ACCUMULATE
is the same as for allocate_dynamic_stack_space. */
failed and the caller should emit a normal call. */
static rtx
expand_builtin_alloca (tree exp, bool cannot_accumulate)
expand_builtin_alloca (tree exp)
{
rtx op0;
rtx result;
@ -4926,7 +4925,7 @@ expand_builtin_alloca (tree exp, bool cannot_accumulate)
tree fndecl = get_callee_fndecl (exp);
bool alloca_with_align = (DECL_FUNCTION_CODE (fndecl)
== BUILT_IN_ALLOCA_WITH_ALIGN);
bool alloca_for_var = CALL_ALLOCA_FOR_VAR_P (exp);
bool valid_arglist
= (alloca_with_align
? validate_arglist (exp, INTEGER_TYPE, INTEGER_TYPE, VOID_TYPE)
@ -4955,8 +4954,9 @@ expand_builtin_alloca (tree exp, bool cannot_accumulate)
? TREE_INT_CST_LOW (CALL_EXPR_ARG (exp, 1))
: BIGGEST_ALIGNMENT);
/* Allocate the desired space. */
result = allocate_dynamic_stack_space (op0, 0, align, cannot_accumulate);
/* Allocate the desired space. If the allocation stems from the declaration
of a variable-sized object, it cannot accumulate. */
result = allocate_dynamic_stack_space (op0, 0, align, alloca_for_var);
result = convert_memory_address (ptr_mode, result);
return result;
@ -6752,9 +6752,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, machine_mode mode,
case BUILT_IN_ALLOCA:
case BUILT_IN_ALLOCA_WITH_ALIGN:
/* If the allocation stems from the declaration of a variable-sized
object, it cannot accumulate. */
target = expand_builtin_alloca (exp, CALL_ALLOCA_FOR_VAR_P (exp));
target = expand_builtin_alloca (exp);
if (target)
return target;
break;