================
@@ -2807,9 +2791,17 @@ static void RenderFloatingPointOptions(const ToolChain
&TC, const Driver &D,
FPExceptionBehavior = "";
// If fast-math is set then set the fp-contract mode to fast.
FPContract = "fast";
- // ffast-math enables limited range rules for complex multiplication and
+ // ffast-math enables basic range rules for complex multiplication and
// division.
- Range = LangOptions::ComplexRangeKind::CX_Limited;
+ // Warn if user expects to perform full implementation of complex
+ // multiplication or division in the presence of nnan or ninf flags.
+ if (Range == LangOptions::ComplexRangeKind::CX_Full)
----------------
andykaylor wrote:
Shouldn't we also warn if this is overriding promoted or improved?
https://github.com/llvm/llvm-project/pull/81514
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