dcandler added a comment. The issue I found was trying to use getDefaultDenormalModeForType during constant folding to account for denormals (https://reviews.llvm.org/D116952). Setting denormal-fp-math to a non-IEEE mode without specifying denormal-fp-math-f32 still results in the denormal-fp-math-f32 attribute being present (even if unsued elsewhere), which leads to the wrong result for targets that do not support denormal-fp-math-f32.
Only emitting denormal-fp-math-f32 when specified makes sense, but the current default effectively always specifies it as IEEE. One alternative would be to simply change the default. CHANGES SINCE LAST ACTION https://reviews.llvm.org/D122589/new/ https://reviews.llvm.org/D122589 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
