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re PR target/30282 (Optimization flag -O1 -fschedule-insns2 cause red zone to be used when there is none) 

PR target/30282
	* config/rs6000/rs6000.c (rs6000_emit_stack_reset): Always emit
	blockage for ABI_V4.

From-SVN: r181059
This commit is contained in:
Alan Modra 2011-11-07 11:46:01 +10:30 committed by Alan Modra
parent 2cc4d549f1
commit bbf41d2656
2 changed files with 7 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-11-07 Alan Modra <amodra@gmail.com>
PR target/30282
* config/rs6000/rs6000.c (rs6000_emit_stack_reset): Always emit
blockage for ABI_V4.
2011-10-29 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR target/50691

2
gcc/config/rs6000/rs6000.c
View File

@ -15943,7 +15943,7 @@ rs6000_emit_stack_reset (rs6000_stack_t *info,
{
/* This blockage is needed so that sched doesn't decide to move
the sp change before the register restores. */
if (frame_reg_rtx != sp_reg_rtx
if (DEFAULT_ABI == ABI_V4
|| (TARGET_SPE_ABI
&& info->spe_64bit_regs_used != 0
&& info->first_gp_reg_save != 32))