[llvm] 1e353fa - AMDGPU: Fix -Wextra (#138539)

[via llvm-commits]

Author: Matt Arsenault
Date: 2025-05-05T20:02:39+02:00
New Revision: 1e353fa5c3f0e13730cd175a90332b8ab113011d

URL: https://github.com/llvm/llvm-project/commit/1e353fa5c3f0e13730cd175a90332b8ab113011d
DIFF: https://github.com/llvm/llvm-project/commit/1e353fa5c3f0e13730cd175a90332b8ab113011d.diff

LOG: AMDGPU: Fix -Wextra (#138539)

Another stupid gcc warning. Ideally we would directly use the enum type,
but subregister indexes are emitted as an anonymous enum.

Fixes #125548

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
index 9c9b3d5d4f97f..ca7b737f4437c 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
@@ -2521,8 +2521,9 @@ bool AMDGPUInstructionSelector::selectG_TRUNC(MachineInstr &I) const {
     return false;
 
   if (SrcSize > 32) {
-    unsigned SubRegIdx =
-        DstSize < 32 ? AMDGPU::sub0 : TRI.getSubRegFromChannel(0, DstSize / 32);
+    unsigned SubRegIdx = DstSize < 32
+                             ? static_cast<unsigned>(AMDGPU::sub0)
+                             : TRI.getSubRegFromChannel(0, DstSize / 32);
     if (SubRegIdx == AMDGPU::NoSubRegister)
       return false;