[mlir][NVVM] Fix default label unreachable warning in getVoteSyncIntrinsicId

[jtuyls]

Fixes the following warning after the changes in #134309:

llvm-project/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp:134:3: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default]
  default:
  ^
1 warning generated.

[llvmbot]

@llvm/pr-subscribers-mlir

@llvm/pr-subscribers-mlir-llvm

Author: Jorn Tuyls (jtuyls)

Changes

Fixes the following warning after the changes in #134309:

llvm-project/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp:134:3: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default]
  default:
  ^
1 warning generated.

---

Full diff: https://github.com/llvm/llvm-project/pull/134600.diff

1 Files Affected:

• (modified) mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp (+1-2)

diff --git a/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp b/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp
index beff90237562d..7dfe320cff2ab 100644
--- a/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp
@@ -131,9 +131,8 @@ static llvm::Intrinsic::ID getVoteSyncIntrinsicId(NVVM::VoteSyncKind kind) {
     return llvm::Intrinsic::nvvm_vote_ballot_sync;
   case NVVM::VoteSyncKind::uni:
     return llvm::Intrinsic::nvvm_vote_uni_sync;
-  default:
-    llvm_unreachable("unsupported vote kind");
   }
+  llvm_unreachable("unsupported vote kind");
 }
 
 /// Return the intrinsic ID associated with ldmatrix for the given paramters.