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Error out with bad optimization level specified.

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llvm-svn: 70449
This commit is contained in:
Bill Wendling 2009-04-29 23:46:43 +00:00
parent 6e33661382
commit 4df71cd268
1 changed files with 3 additions and 1 deletions
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4
tools/llc/llc.cpp
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@ -58,7 +58,7 @@ static cl::opt<bool> Force("f", cl::desc("Overwrite output files"));
// Determine optimization level. Level -O0 is equivalent to "fast" code gen.
static cl::opt<char>
OptLevel("O",
cl::desc("Optimization level. Similar to llvm-gcc -O."),
cl::desc("Optimization level. [-O0, -O1, -O2, -Os, or -O3]"),
cl::Prefix,
cl::ZeroOrMore,
cl::init(' '));
@ -257,6 +257,8 @@ int main(int argc, char **argv) {
switch (OptLevel) {
default:
std::cerr << argv[0] << ": invalid optimization level.\n";
return 1;
case ' ': break;
case '0': OLvl = CodeGenOpt::None; break;
case '1': OLvl = CodeGenOpt::One; break;