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GlobalISel: mark overflow bit of overflow ops legal.

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It's expected this will map to NZCV register class and be properly selectable.

llvm-svn: 279761
This commit is contained in:
Tim Northover 2016-08-25 17:37:41 +00:00
parent fe880a8801
commit d8a6d7ce91
1 changed files with 4 additions and 1 deletions
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5
llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp
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@ -47,10 +47,13 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() {
for (auto Ty : {s32, s64})
setAction({BinOp, Ty}, Legal);
for (auto Op : { G_UADDE, G_USUBE, G_SADDO, G_SSUBO, G_SMULO, G_UMULO })
for (auto Op : { G_UADDE, G_USUBE, G_SADDO, G_SSUBO, G_SMULO, G_UMULO }) {
for (auto Ty : { s32, s64 })
setAction({Op, Ty}, Legal);
setAction({Op, 1, s1}, Legal);
}
for (auto BinOp : {G_FADD, G_FSUB, G_FMUL, G_FDIV})
for (auto Ty : {s32, s64})
setAction({BinOp, Ty}, Legal);