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PPC MCRF instruction does not have side effects
author
Hal Finkel
<hfinkel@anl.gov>
Sun, 7 Apr 2013 05:16:57 +0000
(
05:16
+0000)
committer
Hal Finkel
<hfinkel@anl.gov>
Sun, 7 Apr 2013 05:16:57 +0000
(
05:16
+0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178971
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Target/PowerPC/PPCInstrInfo.td
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diff --git
a/lib/Target/PowerPC/PPCInstrInfo.td
b/lib/Target/PowerPC/PPCInstrInfo.td
index
4664e57
..
86d020b
100644
(file)
--- a/
lib/Target/PowerPC/PPCInstrInfo.td
+++ b/
lib/Target/PowerPC/PPCInstrInfo.td
@@
-1245,6
+1245,7
@@
def FRSQRTES : XForm_26<59, 26, (outs F4RC:$frD), (ins F4RC:$frB),
// XL-Form instructions. condition register logical ops.
//
+let neverHasSideEffects = 1 in
def MCRF : XLForm_3<19, 0, (outs CRRC:$BF), (ins CRRC:$BFA),
"mcrf $BF, $BFA", BrMCR>,
PPC970_DGroup_First, PPC970_Unit_CRU;