[mlir][OpenMP][NFC] Fix gcc 14 warning (#151941)

tblah · tru · commit 5eff9ac65fcb · 2025-08-26T08:46:09.000+02:00
GCC couldn't tell that the enum is checked exhaustively and so was
warning about there being no return on this path from the function.
diff --git a/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp b/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
@@ -3395,6 +3395,7 @@ static llvm::omp::Directive convertCancellationConstructType(
   case omp::ClauseCancellationConstructType::Taskgroup:
     return llvm::omp::Directive::OMPD_taskgroup;
   }
+  llvm_unreachable("Unhandled cancellation construct type");
 }
 
 static LogicalResult

Original file line number	Diff line number	Diff line change
`@@ -3395,6 +3395,7 @@ static llvm::omp::Directive convertCancellationConstructType(`
`3395`	`3395`	`case omp::ClauseCancellationConstructType::Taskgroup:`
`3396`	`3396`	`return llvm::omp::Directive::OMPD_taskgroup;`
`3397`	`3397`	`}`
	`3398`	`+ llvm_unreachable("Unhandled cancellation construct type");`
`3398`	`3399`	`}`
`3399`	`3400`
`3400`	`3401`	`static LogicalResult`