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Add -silence-passes option to bugpoint. This option suppresses output generated 

when bugpoint is running passes in a child process.

llvm-svn: 52234
This commit is contained in:
Matthijs Kooijman 2008-06-12 13:02:26 +00:00
parent 1cc695efd7
commit 4ba5df8a68
1 changed files with 8 additions and 1 deletions
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9
llvm/tools/bugpoint/OptimizerDriver.cpp
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@ -114,6 +114,8 @@ int BugDriver::runPassesAsChild(const std::vector<const PassInfo*> &Passes) {
return 0;
}
cl::opt<bool> SilencePasses("silence-passes", cl::desc("Suppress output of running passes (both stdout and stderr)"));
/// runPasses - Run the specified passes on Program, outputting a bitcode file
/// and writing the filename into OutputFile if successful. If the
/// optimizations fail for some reason (optimizer crashes), return true,
@ -192,7 +194,12 @@ bool BugDriver::runPasses(const std::vector<const PassInfo*> &Passes,
prog = sys::Program::FindProgramByName("valgrind");
else
prog = tool;
int result = sys::Program::ExecuteAndWait(prog, args, 0, 0,
// Redirect stdout and stderr to nowhere if SilencePasses is given
sys::Path Nowhere;
const sys::Path *Redirects[3] = {0, &Nowhere, &Nowhere};
int result = sys::Program::ExecuteAndWait(prog, args, 0, (SilencePasses ? Redirects : 0),
Timeout, MemoryLimit, &ErrMsg);
// If we are supposed to delete the bitcode file or if the passes crashed,