[DebugInfo] Avoid repeated hash lookups (NFC) #112298
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Member
|
@llvm/pr-subscribers-platform-windows @llvm/pr-subscribers-debuginfo Author: Kazu Hirata (kazutakahirata) ChangesFull diff: https://github.com/llvm/llvm-project/pull/112298.diff 1 Files Affected:
diff --git a/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp b/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
index 1a31aa206dfcc6..463b9ebe3cbff5 100644
--- a/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
@@ -447,11 +447,11 @@ SymbolCache::findPublicSymbolBySectOffset(uint32_t Sect, uint32_t Offset) {
std::vector<SymbolCache::LineTableEntry>
SymbolCache::findLineTable(uint16_t Modi) const {
// Check if this module has already been added.
- auto LineTableIter = LineTable.find(Modi);
- if (LineTableIter != LineTable.end())
+ auto [LineTableIter, Inserted] = LineTable.try_emplace(Modi);
+ if (!Inserted)
return LineTableIter->second;
- std::vector<LineTableEntry> &ModuleLineTable = LineTable[Modi];
+ std::vector<LineTableEntry> &ModuleLineTable = LineTableIter->second;
// If there is an error or there are no lines, just return the
// empty vector.
|
DanielCChen
pushed a commit
to DanielCChen/llvm-project
that referenced
this pull request
Oct 16, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
No description provided.