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Use StringRef to avoid copies and simplify code. 

llvm-svn: 216822
This commit is contained in:
Craig Topper 2014-08-30 16:48:22 +00:00
parent c9439cc8fc
commit e3c88e1605
1 changed files with 6 additions and 18 deletions
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24
llvm/tools/llc/llc.cpp
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@ -95,23 +95,6 @@ static cl::opt<bool> AsmVerbose("asm-verbose",
static int compileModule(char **, LLVMContext &);
// GetFileNameRoot - Helper function to get the basename of a filename.
static inline std::string
GetFileNameRoot(const std::string &InputFilename) {
std::string IFN = InputFilename;
std::string outputFilename;
int Len = IFN.length();
if ((Len > 2) &&
IFN[Len-3] == '.' &&
((IFN[Len-2] == 'b' && IFN[Len-1] == 'c') ||
(IFN[Len-2] == 'l' && IFN[Len-1] == 'l'))) {
outputFilename = std::string(IFN.begin(), IFN.end()-3); // s/.bc/.s/
} else {
outputFilename = IFN;
}
return outputFilename;
}
static tool_output_file *GetOutputStream(const char *TargetName,
Triple::OSType OS,
const char *ProgName) {
@ -120,7 +103,12 @@ static tool_output_file *GetOutputStream(const char *TargetName,
if (InputFilename == "-")
OutputFilename = "-";
else {
OutputFilename = GetFileNameRoot(InputFilename);
// If InputFilename ends in .bc or .ll, remove it.
StringRef IFN = InputFilename;
if (IFN.endswith(".bc") || IFN.endswith(".ll"))
OutputFilename = IFN.drop_back(3);
else
OutputFilename = IFN;
switch (FileType) {
case TargetMachine::CGFT_AssemblyFile: