AMDGPU: Fix gcc -Wenum-compare warning

[arsenm]

It doesn't like this extended enum idiom, so make the code worse.

Fixes #125549

[arsenm]

• AMDGPU: Fix gcc -Wenum-compare warning #138529 👈 (View in Graphite)
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[llvmbot]

@llvm/pr-subscribers-backend-amdgpu

Author: Matt Arsenault (arsenm)

Changes

It doesn't like this extended enum idiom, so make the code worse.

Fixes #125549

---

Full diff: https://github.com/llvm/llvm-project/pull/138529.diff

1 Files Affected:

• (modified) llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp (+2-1)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
index 236c373e70250..b6023b4f3fbcf 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -2971,7 +2971,8 @@ SDValue AMDGPUTargetLowering::lowerFEXP10Unsafe(SDValue X, const SDLoc &SL,
                                                 SelectionDAG &DAG,
                                                 SDNodeFlags Flags) const {
   const EVT VT = X.getValueType();
-  const unsigned Exp2Op = VT == MVT::f32 ? AMDGPUISD::EXP : ISD::FEXP2;
+  const unsigned Exp2Op = VT == MVT::f32 ? static_cast<unsigned>(AMDGPUISD::EXP)
+                                         : static_cast<unsigned>(ISD::FEXP2);
 
   if (VT != MVT::f32 || !needsDenormHandlingF32(DAG, X, Flags)) {
     // exp2(x * 0x1.a92000p+1f) * exp2(x * 0x1.4f0978p-11f);