================
@@ -1119,6 +1136,59 @@ void
CIRGenFunction::emitNullInitialization(mlir::Location loc, Address destPtr,
builder.createStore(loc, zeroValue, destPtr);
}
+CIRGenFunction::CIRGenFPOptionsRAII::CIRGenFPOptionsRAII(CIRGenFunction &cgf,
+ const clang::Expr *e)
+ : cgf(cgf) {
+ ConstructorHelper(e->getFPFeaturesInEffect(cgf.getLangOpts()));
+}
+
+CIRGenFunction::CIRGenFPOptionsRAII::CIRGenFPOptionsRAII(CIRGenFunction &cgf,
+ FPOptions fpFeatures)
+ : cgf(cgf) {
+ ConstructorHelper(fpFeatures);
+}
+
+void CIRGenFunction::CIRGenFPOptionsRAII::ConstructorHelper(
+ FPOptions fpFeatures) {
+ oldFPFeatures = cgf.curFPFeatures;
+ cgf.curFPFeatures = fpFeatures;
+
+ oldExcept = cgf.builder.getDefaultConstrainedExcept();
+ oldRounding = cgf.builder.getDefaultConstrainedRounding();
+
+ if (oldFPFeatures == fpFeatures)
+ return;
+
+ // TODO(cir): create guard to restore fast math configurations.
+ assert(!cir::MissingFeatures::fastMathGuard());
+
+ llvm::RoundingMode newRoundingBehavior = fpFeatures.getRoundingMode();
+ // TODO(cir): override rounding behaviour once FM configs are guarded.
+ auto newExceptionBehavior =
----------------
andykaylor wrote:
Don't use auto here
https://github.com/llvm/llvm-project/pull/179121
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