CommandLine errors are silent under llvm-gcc4

[llvmbot]

Bugzilla Link	860
Resolution	FIXED
Resolved on	Feb 22, 2010 12:44
Version	trunk
OS	MacOS X
Reporter	LLVM Bugzilla Contributor
CC	@lattner

Extended Description

An llvm command line error is not displayed to the user (routing of stdout/stderr?)

Was discovered when selective loading of register allocators was introduced. The "-regalloc=local" option
failed because the local register allocator wasn't loaded. No report was given.

[llvmbot]

A null program name suppressed the output of error messages.

Index: gcc/llvm-backend.cpp

====
--- gcc/llvm-backend.cpp (revision 116677)
+++ gcc/llvm-backend.cpp (working copy)
@@ -80,7 +80,7 @@
void llvm_initialize_backend(void) {
// Initialize LLVM options.
std::vector<const char*> Args;

• Args.push_back(0); // program name

• Args.push_back(progname); // program name
  // Allow targets to specify PIC options and other stuff to the corresponding
  // LLVM backends.