================
@@ -2339,6 +2345,28 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl
GD, unsigned BuiltinID,
// LLVM counterparts if the call is marked 'const' (known to never set
errno).
// In case FP exceptions are enabled, the experimental versions of the
// intrinsics model those.
+ bool ConstAlways =
+ getContext().BuiltinInfo.isConst(BuiltinID);
+
+ // There's a special case with the fma builtins where they are always const
+ // if the target environment is GNU or the target is OS is Windows and we're
+ // targeting the MSVCRT.dll environment.
+ switch (BuiltinID) {
----------------
zahiraam wrote:
Can the special case in the math-errno fix concerning "fma" become actually a
list of those? Aaron is worried that the list can become out of sync. We could
get the name of the builtin via the
getContext().BuiltinInfo.getName(BuiltinID); and work with that. Then we don't
have to have a list here?
https://github.com/llvm/llvm-project/pull/66381
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