[llvm] [IR] Store fast-math flags in subclasses of Instruction (PR #191190)

[Alexis Engelke via llvm-commits]

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@@ -300,3 +300,51 @@ void FastMathFlags::print(raw_ostream &O) const {
       O << " afn";
   }
 }
+
+unsigned short &FPMathOperator::getFMFValue() {
+  auto *V = static_cast<Value *>(this);
+  auto *I = dyn_cast<Instruction>(V);
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aengelke wrote:

cast<>

https://github.com/llvm/llvm-project/pull/191190