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| author | Michael Ilseman <milseman@apple.com> | 2012-11-27 00:43:38 +0000 |
|---|---|---|
| committer | Michael Ilseman <milseman@apple.com> | 2012-11-27 00:43:38 +0000 |
| commit | 495d10ad56d1113ba33e0589e7c4f96f3c16fa52 (patch) | |
| tree | cbcbe1cc27c28f06774260ca1894aa0f1e58b60c /lib/Bitcode/Reader | |
| parent | 15c13d3e63d7745bccad74d547af4e3482193eaa (diff) | |
| download | external_llvm-495d10ad56d1113ba33e0589e7c4f96f3c16fa52.zip external_llvm-495d10ad56d1113ba33e0589e7c4f96f3c16fa52.tar.gz external_llvm-495d10ad56d1113ba33e0589e7c4f96f3c16fa52.tar.bz2 | |
Fast-math flags for the bitcode
Added in bitcode enum for the serializing of fast-math flags. Added in the reading/writing of fast-math flags from the OptimizationFlags record for BinaryOps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168646 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode/Reader')
| -rw-r--r-- | lib/Bitcode/Reader/BitcodeReader.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp index d3c8678..f31637e 100644 --- a/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/lib/Bitcode/Reader/BitcodeReader.cpp @@ -2044,7 +2044,22 @@ bool BitcodeReader::ParseFunctionBody(Function *F) { Opc == Instruction::AShr) { if (Record[OpNum] & (1 << bitc::PEO_EXACT)) cast<BinaryOperator>(I)->setIsExact(true); + } else if (isa<FPMathOperator>(I)) { + FastMathFlags FMF; + FMF.UnsafeAlgebra = + 0 != (Record[OpNum] & (1 << bitc::FMF_UNSAFE_ALGEBRA)); + FMF.NoNaNs + = 0 != (Record[OpNum] & (1 << bitc::FMF_NO_NANS)); + FMF.NoInfs + = 0 != (Record[OpNum] & (1 << bitc::FMF_NO_INFS)); + FMF.NoSignedZeros + = 0 != (Record[OpNum] & (1 << bitc::FMF_NO_SIGNED_ZEROS)); + FMF.AllowReciprocal + = 0 != (Record[OpNum] & (1 << bitc::FMF_ALLOW_RECIPROCAL)); + if (FMF.any()) + I->setFastMathFlags(FMF); } + } break; } |