Use the target options specified on a function to reset the back-end.
During LTO, the target options on functions within the same Module may
change. This would necessitate resetting some of the back-end. Do this for X86,
because it's a Friday afternoon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178917 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetOptionsImpl.cpp b/lib/CodeGen/TargetOptionsImpl.cpp
index 0f59d01..435a5e7 100644
--- a/lib/CodeGen/TargetOptionsImpl.cpp
+++ b/lib/CodeGen/TargetOptionsImpl.cpp
@@ -50,3 +50,29 @@
return TrapFuncName;
}
+bool TargetOptions::operator==(const TargetOptions &TO) {
+#define ARE_EQUAL(X) X == TO.X
+ return
+ ARE_EQUAL(UnsafeFPMath) &&
+ ARE_EQUAL(NoInfsFPMath) &&
+ ARE_EQUAL(NoNaNsFPMath) &&
+ ARE_EQUAL(HonorSignDependentRoundingFPMathOption) &&
+ ARE_EQUAL(UseSoftFloat) &&
+ ARE_EQUAL(NoZerosInBSS) &&
+ ARE_EQUAL(JITExceptionHandling) &&
+ ARE_EQUAL(JITEmitDebugInfo) &&
+ ARE_EQUAL(JITEmitDebugInfoToDisk) &&
+ ARE_EQUAL(GuaranteedTailCallOpt) &&
+ ARE_EQUAL(DisableTailCalls) &&
+ ARE_EQUAL(StackAlignmentOverride) &&
+ ARE_EQUAL(RealignStack) &&
+ ARE_EQUAL(SSPBufferSize) &&
+ ARE_EQUAL(EnableFastISel) &&
+ ARE_EQUAL(PositionIndependentExecutable) &&
+ ARE_EQUAL(EnableSegmentedStacks) &&
+ ARE_EQUAL(UseInitArray) &&
+ ARE_EQUAL(TrapFuncName) &&
+ ARE_EQUAL(FloatABIType) &&
+ ARE_EQUAL(AllowFPOpFusion);
+#undef ARE_EQUAL
+}