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Issue a fatal error if the line doesn't have a regular expression.

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Also a couple not-user-visible changes; using empty() instead of size(), and
make inSection() not insert NULL Regex*'s into StringMap when doing a lookup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168833 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2012-11-29 00:01:38 +00:00
parent 90e11dc8ad
commit 7b09b97bdf
1 changed files with 12 additions and 6 deletions
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18
lib/Transforms/Instrumentation/BlackList.cpp
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@ -33,7 +33,7 @@ namespace llvm {
BlackList::BlackList(const StringRef Path) {
// Validate and open blacklist file.
if (!Path.size()) return;
if (Path.empty()) return;
OwningPtr<MemoryBuffer> File;
if (error_code EC = MemoryBuffer::getFile(Path, File)) {
report_fatal_error("Can't open blacklist file: " + Path + ": " +
@ -53,6 +53,10 @@ BlackList::BlackList(const StringRef Path) {
std::pair<StringRef, StringRef> SplitLine = I->split(":");
StringRef Prefix = SplitLine.first;
std::string Regexp = SplitLine.second;
if (Regexp.empty()) {
// Missing ':' in the line.
report_fatal_error("malformed blacklist line: " + SplitLine.first);
}
// Replace * with .*
for (size_t pos = 0; (pos = Regexp.find("*", pos)) != std::string::npos;
@ -69,7 +73,7 @@ BlackList::BlackList(const StringRef Path) {
}
// Add this regexp into the proper group by its prefix.
if (Regexps[Prefix].size())
if (!Regexps[Prefix].empty())
Regexps[Prefix] += "|";
Regexps[Prefix] += Regexp;
}
@ -110,10 +114,12 @@ bool BlackList::isInInit(const GlobalVariable &G) {
inSection("global-init-type", GetGVTypeString(G)));
}
bool BlackList::inSection(const StringRef Section,
const StringRef Query) {
Regex *FunctionRegex = Entries[Section];
return FunctionRegex ? FunctionRegex->match(Query) : false;
bool BlackList::inSection(const StringRef Section, const StringRef Query) {
StringMap<Regex*>::iterator I = Entries.find(Section);
if (I == Entries.end()) return false;
Regex *FunctionRegex = I->getValue();
return FunctionRegex->match(Query);
}
} // namespace llvm