[Transforms] Avoid repeated hash lookups (NFC) #111470
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@llvm/pr-subscribers-mlir Author: Kazu Hirata (kazutakahirata) ChangesFull diff: https://github.com/llvm/llvm-project/pull/111470.diff 1 Files Affected:
diff --git a/mlir/lib/Transforms/Utils/RegionUtils.cpp b/mlir/lib/Transforms/Utils/RegionUtils.cpp
index b7d26e88230946..e55ef6eb66b9c7 100644
--- a/mlir/lib/Transforms/Utils/RegionUtils.cpp
+++ b/mlir/lib/Transforms/Utils/RegionUtils.cpp
@@ -709,8 +709,7 @@ static SmallVector<SmallVector<Value, 8>, 2> pruneRedundantArguments(
DenseMap<Value, unsigned> firstValueToIdx;
for (unsigned j = 0; j < numArgs; ++j) {
Value newArg = newArguments[0][j];
- if (!firstValueToIdx.contains(newArg))
- firstValueToIdx[newArg] = j;
+ firstValueToIdx.try_emplace(newArg, j);
}
// Go through the first list of arguments (list 0).
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@llvm/pr-subscribers-mlir-core Author: Kazu Hirata (kazutakahirata) ChangesFull diff: https://github.com/llvm/llvm-project/pull/111470.diff 1 Files Affected:
diff --git a/mlir/lib/Transforms/Utils/RegionUtils.cpp b/mlir/lib/Transforms/Utils/RegionUtils.cpp
index b7d26e88230946..e55ef6eb66b9c7 100644
--- a/mlir/lib/Transforms/Utils/RegionUtils.cpp
+++ b/mlir/lib/Transforms/Utils/RegionUtils.cpp
@@ -709,8 +709,7 @@ static SmallVector<SmallVector<Value, 8>, 2> pruneRedundantArguments(
DenseMap<Value, unsigned> firstValueToIdx;
for (unsigned j = 0; j < numArgs; ++j) {
Value newArg = newArguments[0][j];
- if (!firstValueToIdx.contains(newArg))
- firstValueToIdx[newArg] = j;
+ firstValueToIdx.try_emplace(newArg, j);
}
// Go through the first list of arguments (list 0).
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