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/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 @@
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;
}