[clang] [CLANG] Full support of complex multiplication and division. (PR #81514)

[Andy Kaylor via cfe-commits]

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@@ -986,13 +1028,17 @@ ComplexPairTy ComplexExprEmitter::EmitBinDiv(const BinOpInfo &Op) {
     llvm::Value *OrigLHSi = LHSi;
     if (!LHSi)
       LHSi = llvm::Constant::getNullValue(RHSi->getType());
-    if (Op.FPFeatures.getComplexRange() == LangOptions::CX_Fortran)
+    QualType ComplexElementTy = Op.Ty->castAs<ComplexType>()->getElementType();
+    if (Op.FPFeatures.getComplexRange() == LangOptions::CX_Improved ||
+        (Op.FPFeatures.getComplexRange() == LangOptions::CX_Promoted &&
+         FPHasBeenPromoted == LangOptions::CX_Improved))
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andykaylor wrote:

It seems that this value is only ever set to CX_Improved or CX_None. Why not use a Boolean? As it is, I'm left with questions about what would happen if the value were CX_Basic or CX_None (expecting that CX_Promoted would be used if we did promote).

https://github.com/llvm/llvm-project/pull/81514