TLI: Factor out sanitizeFunctionName. NFC.
llvm-svn: 231034
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index e1b028e..5ebd126 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -714,20 +714,28 @@
return *this;
}
-bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName,
- LibFunc::Func &F) const {
- const char **Start = &StandardNames[0];
- const char **End = &StandardNames[LibFunc::NumLibFuncs];
-
+static StringRef sanitizeFunctionName(StringRef funcName) {
// Filter out empty names and names containing null bytes, those can't be in
// our table.
if (funcName.empty() || funcName.find('\0') != StringRef::npos)
- return false;
+ return StringRef();
// Check for \01 prefix that is used to mangle __asm declarations and
// strip it if present.
if (funcName.front() == '\01')
funcName = funcName.substr(1);
+ return funcName;
+}
+
+bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName,
+ LibFunc::Func &F) const {
+ const char **Start = &StandardNames[0];
+ const char **End = &StandardNames[LibFunc::NumLibFuncs];
+
+ funcName = sanitizeFunctionName(funcName);
+ if (funcName.empty())
+ return false;
+
const char **I = std::lower_bound(
Start, End, funcName, [](const char *LHS, StringRef RHS) {
return std::strncmp(LHS, RHS.data(), RHS.size()) < 0;