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| author | Vadzim Dambrouski <pftbest@gmail.com> | 2017-04-26 00:33:59 +0000 |
|---|---|---|
| committer | Vadzim Dambrouski <pftbest@gmail.com> | 2017-04-26 00:33:59 +0000 |
| commit | d91fb8c367186cac1b55be88314385df1959ef10 (patch) | |
| tree | 37f76f97586cb4535ef3fe7cfd61391c7322a0c2 /llvm/lib | |
| parent | 77deb5c7880c18c2e1112e508c1091bc3d872516 (diff) | |
| download | bcm5719-llvm-d91fb8c367186cac1b55be88314385df1959ef10.tar.gz bcm5719-llvm-d91fb8c367186cac1b55be88314385df1959ef10.zip | |
[MSP430] Fix PR32769: Select8 and Select16 need to have SR in Uses.
If Select pseudo instruction doesn't have use SR, then
CMP instructions are being marked as dead and later can be
removed by MachineCSE pass. This leads to incorrect code
generation.
Differential Revision: https://reviews.llvm.org/D32473
llvm-svn: 301372
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/MSP430/MSP430InstrInfo.td | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/MSP430/MSP430InstrInfo.td b/llvm/lib/Target/MSP430/MSP430InstrInfo.td index c0c29b99223..22fc2474fae 100644 --- a/llvm/lib/Target/MSP430/MSP430InstrInfo.td +++ b/llvm/lib/Target/MSP430/MSP430InstrInfo.td @@ -122,6 +122,7 @@ def ADJCALLSTACKUP : Pseudo<(outs), (ins i16imm:$amt1, i16imm:$amt2), } let usesCustomInserter = 1 in { + let Uses = [SR] in { def Select8 : Pseudo<(outs GR8:$dst), (ins GR8:$src, GR8:$src2, i8imm:$cc), "# Select8 PSEUDO", [(set GR8:$dst, @@ -130,6 +131,7 @@ let usesCustomInserter = 1 in { "# Select16 PSEUDO", [(set GR16:$dst, (MSP430selectcc GR16:$src, GR16:$src2, imm:$cc))]>; + } let Defs = [SR] in { def Shl8 : Pseudo<(outs GR8:$dst), (ins GR8:$src, GR8:$cnt), "# Shl8 PSEUDO", |
