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| author | Kazu Hirata <kazu@google.com> | 2024-09-06 07:40:27 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-09-06 07:40:27 -0700 |
| commit | bd1559533d88f0d32b7ca17aa316b07b7924be2d (patch) | |
| tree | 1119d749e7c9e1db9baeb847ec7e9152b28d3a10 /llvm/lib/Transforms/Utils/SimplifyIndVar.cpp | |
| parent | 9528bcd5327c0120c82c84031b52b167037aa650 (diff) | |
| download | llvm-bd1559533d88f0d32b7ca17aa316b07b7924be2d.zip llvm-bd1559533d88f0d32b7ca17aa316b07b7924be2d.tar.gz llvm-bd1559533d88f0d32b7ca17aa316b07b7924be2d.tar.bz2 | |
[IndVars] Avoid repeated hash lookups (NFC) (#107513)
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyIndVar.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyIndVar.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp index a950a4f..ff13c06 100644 --- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp @@ -1103,10 +1103,8 @@ class WidenIV { void updatePostIncRangeInfo(Value *Def, Instruction *UseI, ConstantRange R) { DefUserPair Key(Def, UseI); - auto It = PostIncRangeInfos.find(Key); - if (It == PostIncRangeInfos.end()) - PostIncRangeInfos.insert({Key, R}); - else + auto [It, Inserted] = PostIncRangeInfos.try_emplace(Key, R); + if (!Inserted) It->second = R.intersectWith(It->second); } |