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| author | Frits van Bommel <fvbommel@gmail.com> | 2011-03-27 14:26:13 +0000 |
|---|---|---|
| committer | Frits van Bommel <fvbommel@gmail.com> | 2011-03-27 14:26:13 +0000 |
| commit | 0bb2ad2cf7f8032492401d82e0cb6be6b98406a0 (patch) | |
| tree | 6e79e42f5d24f438eb4fa23cf16a41fe102df8d8 /llvm/lib/Analysis/ConstantFolding.cpp | |
| parent | d5f631cd2a518f615020c42635a818259dd0f445 (diff) | |
| download | llvm-0bb2ad2cf7f8032492401d82e0cb6be6b98406a0.zip llvm-0bb2ad2cf7f8032492401d82e0cb6be6b98406a0.tar.gz llvm-0bb2ad2cf7f8032492401d82e0cb6be6b98406a0.tar.bz2 | |
Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
llvm-svn: 128379
Diffstat (limited to 'llvm/lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ConstantFolding.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp index cd8d52c..c6aad0c 100644 --- a/llvm/lib/Analysis/ConstantFolding.cpp +++ b/llvm/lib/Analysis/ConstantFolding.cpp @@ -1048,11 +1048,12 @@ llvm::canConstantFoldCallTo(const Function *F) { case Intrinsic::ctpop: case Intrinsic::ctlz: case Intrinsic::cttz: - case Intrinsic::uadd_with_overflow: - case Intrinsic::usub_with_overflow: case Intrinsic::sadd_with_overflow: + case Intrinsic::uadd_with_overflow: case Intrinsic::ssub_with_overflow: + case Intrinsic::usub_with_overflow: case Intrinsic::smul_with_overflow: + case Intrinsic::umul_with_overflow: case Intrinsic::convert_from_fp16: case Intrinsic::convert_to_fp16: case Intrinsic::x86_sse_cvtss2si: @@ -1362,7 +1363,8 @@ llvm::ConstantFoldCall(Function *F, case Intrinsic::uadd_with_overflow: case Intrinsic::ssub_with_overflow: case Intrinsic::usub_with_overflow: - case Intrinsic::smul_with_overflow: { + case Intrinsic::smul_with_overflow: + case Intrinsic::umul_with_overflow: { APInt Res; bool Overflow; switch (F->getIntrinsicID()) { @@ -1382,6 +1384,9 @@ llvm::ConstantFoldCall(Function *F, case Intrinsic::smul_with_overflow: Res = Op1->getValue().smul_ov(Op2->getValue(), Overflow); break; + case Intrinsic::umul_with_overflow: + Res = Op1->getValue().umul_ov(Op2->getValue(), Overflow); + break; } Constant *Ops[] = { ConstantInt::get(F->getContext(), Res), |