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
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index cf3c9fd..6206479 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -553,6 +553,18 @@
dyn_cast<PossiblyExactOperator>(V)) {
if (PEO->isExact())
Flags |= 1 << bitc::PEO_EXACT;
+ } else if (const FPMathOperator *FPMO =
+ dyn_cast<const FPMathOperator>(V)) {
+ if (FPMO->hasUnsafeAlgebra())
+ Flags |= 1 << bitc::FMF_UNSAFE_ALGEBRA;
+ if (FPMO->hasNoNaNs())
+ Flags |= 1 << bitc::FMF_NO_NANS;
+ if (FPMO->hasNoInfs())
+ Flags |= 1 << bitc::FMF_NO_INFS;
+ if (FPMO->hasNoSignedZeros())
+ Flags |= 1 << bitc::FMF_NO_SIGNED_ZEROS;
+ if (FPMO->hasAllowReciprocal())
+ Flags |= 1 << bitc::FMF_ALLOW_RECIPROCAL;
}
return Flags;