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[AArch64] Fix memmodel index in aarch64_store_exclusive_pair 

Found via an rtx checking failure.

2019-09-23  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/atomics.md (aarch64_store_exclusive_pair): Fix
	memmodel index.

From-SVN: r276052
This commit is contained in:
Richard Sandiford 2019-09-23 09:24:03 +00:00 committed by Richard Sandiford
parent 158ab20432
commit 3a30d2558b
2 changed files with 6 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-09-23 Richard Sandiford <richard.sandiford@arm.com>
* config/aarch64/atomics.md (aarch64_store_exclusive_pair): Fix
memmodel index.
2019-09-23 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR ipa/91835

2
gcc/config/aarch64/atomics.md
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@ -752,7 +752,7 @@
UNSPECV_SX))]
""
{
enum memmodel model = memmodel_from_int (INTVAL (operands[3]));
enum memmodel model = memmodel_from_int (INTVAL (operands[4]));
if (is_mm_relaxed (model) || is_mm_consume (model) || is_mm_acquire (model))
return "stxp\t%w0, %x2, %x3, %1";
else