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i386.md (allocate_stack): Simplify. 

* config/i386/i386.md (allocate_stack): Simplify.

From-SVN: r185545
This commit is contained in:
Uros Bizjak 2012-03-19 23:16:45 +01:00 committed by Uros Bizjak
parent fa7548481a
commit 5ef4f6095e
2 changed files with 20 additions and 16 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,7 @@
2012-03-19 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (allocate_stack): Simplify.
2012-03-19 Uros Bizjak <ubizjak@gmail.com>
* builtins.c (expand_builtin_cexpi): Use copy_addr_to_reg instead of
@ -10,7 +14,6 @@
(ix86_expand_setmem): Ditto.
(ix86_trampoline_init): DItto.
* config/i386/i386.md (cmpstrnsi): Ditto.
(allocate_stack): Ditto.
2012-03-19 Sandra Loosemore <sandra@codesourcery.com>

31
gcc/config/i386/i386.md
View File

@ -16729,25 +16729,26 @@
if (CHECK_STACK_LIMIT && CONST_INT_P (operands[1])
&& INTVAL (operands[1]) < CHECK_STACK_LIMIT)
{
x = expand_simple_binop (Pmode, MINUS, stack_pointer_rtx, operands[1],
stack_pointer_rtx, 0, OPTAB_DIRECT);
if (x != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, x);
}
x = operands[1];
else
{
x = copy_addr_to_reg (operands[1]);
if (TARGET_64BIT)
emit_insn (gen_allocate_stack_worker_probe_di (x, x));
else
emit_insn (gen_allocate_stack_worker_probe_si (x, x));
x = expand_simple_binop (Pmode, MINUS, stack_pointer_rtx, x,
stack_pointer_rtx, 0, OPTAB_DIRECT);
if (x != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, x);
rtx (*insn) (rtx, rtx);
x = copy_to_mode_reg (Pmode, operands[1]);
insn = (TARGET_64BIT
? gen_allocate_stack_worker_probe_di
: gen_allocate_stack_worker_probe_si);
emit_insn (insn (x, x));
}
x = expand_simple_binop (Pmode, MINUS, stack_pointer_rtx, x,
stack_pointer_rtx, 0, OPTAB_DIRECT);
if (x != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, x);
emit_move_insn (operands[0], virtual_stack_dynamic_rtx);
DONE;
})