[llvm] [InstCombine] Add fold for fabs(-x) -> fabs(x) (PR #94183)

[Yingwei Zheng via llvm-commits]

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@@ -2517,6 +2517,13 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
   }
   case Intrinsic::fabs: {
     Value *Cond, *TVal, *FVal;
+    Value* Arg = II->getArgOperand(0);
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dtcxzyw wrote:

Can you replace all following uses of `II->getArgOperand(0)` with `Arg`?


https://github.com/llvm/llvm-project/pull/94183