[PATCH] D142861: [Clang] avoid relying on StringMap iteration order when roundtripping -analyzer-config
Erik Desjardins via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Jan 30 14:37:07 PST 2023
erikdesjardins updated this revision to Diff 493426.
erikdesjardins added a comment.
Improve code style. `ninja check-clang` still passes (as expected)
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D142861/new/
https://reviews.llvm.org/D142861
Files:
clang/lib/Frontend/CompilerInvocation.cpp
Index: clang/lib/Frontend/CompilerInvocation.cpp
===================================================================
--- clang/lib/Frontend/CompilerInvocation.cpp
+++ clang/lib/Frontend/CompilerInvocation.cpp
@@ -877,14 +877,20 @@
AnalyzerOptions ConfigOpts;
parseAnalyzerConfigs(ConfigOpts, nullptr);
- for (const auto &C : Opts.Config) {
+ // Sort options by key to avoid relying on StringMap iteration order.
+ SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts;
+ for (const auto &C : Opts.Config)
+ SortedConfigOpts.emplace_back(C.getKey(), C.getValue());
+ llvm::sort(SortedConfigOpts, llvm::less_first());
+
+ for (const auto &[Key, Value] : SortedConfigOpts) {
// Don't generate anything that came from parseAnalyzerConfigs. It would be
// redundant and may not be valid on the command line.
- auto Entry = ConfigOpts.Config.find(C.getKey());
- if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue())
+ auto Entry = ConfigOpts.Config.find(Key);
+ if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value)
continue;
- GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA);
+ GenerateArg(Args, OPT_analyzer_config, Key + "=" + Value, SA);
}
// Nothing to generate for FullCompilerInvocation.
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