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Add proper support to send output to the right place

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@649 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2001-09-19 16:52:09 +00:00
parent ca269e4327
commit 78f7e1a9cd
1 changed files with 36 additions and 3 deletions
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39
tools/llc/llc.cpp
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@ -12,15 +12,17 @@
#include "llvm/Module.h"
#include "llvm/Method.h"
#include <memory>
#include <fstream>
cl::String InputFilename ("", "Input filename", cl::NoFlags, "-");
cl::String OutputFilename("o", "Output filename", cl::NoFlags, "");
cl::Flag Force ("f", "Overwrite output files", cl::NoFlags, false);
//-------------------------- Internal Functions -----------------------------//
static void NormalizeMethod(Method* method) {
NormalizePhiConstantArgs(method);
static void NormalizeMethod(Method *M) {
NormalizePhiConstantArgs(M);
}
@ -57,7 +59,38 @@ int main(int argc, char **argv) {
}
}
Target->emitAssembly(M.get(), cout);
// Figure out where we are going to send the output...
ostream *Out = 0;
if (OutputFilename != "") { // Specified an output filename?
Out = new ofstream(OutputFilename.c_str(),
(Force ? 0 : ios::noreplace)|ios::out);
} else {
if (InputFilename == "-") {
OutputFilename = "-";
Out = &cout;
} else {
string IFN = InputFilename;
int Len = IFN.length();
if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c') {
OutputFilename = string(IFN.begin(), IFN.end()-3); // s/.bc/.s/
} else {
OutputFilename = IFN; // Append a .s to it
}
OutputFilename += ".s";
Out = new ofstream(OutputFilename.c_str(),
(Force ? 0 : ios::noreplace)|ios::out);
if (!Out->good()) {
cerr << "Error opening " << OutputFilename << "!\n";
delete Out;
return 1;
}
}
}
// Emit the output...
Target->emitAssembly(M.get(), *Out);
if (Out != &cout) delete Out;
return 0;
}