[mlir] Use llvm::hasSingleElement (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-mlir-spirv

@llvm/pr-subscribers-mlir

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/133648.diff

1 Files Affected:

• (modified) mlir/lib/Dialect/SPIRV/IR/ControlFlowOps.cpp (+1-2)

diff --git a/mlir/lib/Dialect/SPIRV/IR/ControlFlowOps.cpp b/mlir/lib/Dialect/SPIRV/IR/ControlFlowOps.cpp
index bcfd7ebccd12d..2959d67b366b9 100644
--- a/mlir/lib/Dialect/SPIRV/IR/ControlFlowOps.cpp
+++ b/mlir/lib/Dialect/SPIRV/IR/ControlFlowOps.cpp
@@ -255,8 +255,7 @@ static bool hasOneBranchOpTo(Block &srcBlock, Block &dstBlock) {
 
 /// Returns true if the given `block` only contains one `spirv.mlir.merge` op.
 static bool isMergeBlock(Block &block) {
-  return !block.empty() && std::next(block.begin()) == block.end() &&
-         isa<spirv::MergeOp>(block.front());
+  return llvm::hasSingleElement(block) && isa<spirv::MergeOp>(block.front());
 }
 
 /// Returns true if a `spirv.mlir.merge` op outside the merge block.

[kuhar]

Thanks