Hello!
No functional change.
2012-03-19 Uros Bizjak <ubiz...@gmail.com>
* config/i386/i386.md (allocate_stack): Simplify.
Tested on x86_64-pc-linux-gnu, committed to mainline SVN.
Uros.
Index: i386/i386.md
===================================================================
--- i386/i386.md (revision 185541)
+++ i386/i386.md (working copy)
@@ -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;
})
