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Preprocessor: fix __OPTIMIZE_SIZE__ and -Oz

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Add some tests for __OPTIMIZE_SIZE__ and  __NO_INLINE__,
removing the superfluous copies in the target-specific
tests, since it's target-independent.

This uncovered a bug in the handling of -Oz: it would
attempt to store the value 2 in the 1-bit bitfield OptimizeSize,
leaving a value of 0 and never defining __OPTIMIZE_SIZE__.

llvm-svn: 161495
This commit is contained in:
Dylan Noblesmith
2012-08-08 16:09:15 +00:00
parent c0cebeddb2
commit 4c004f3e13
2 changed files with 32 additions and 21 deletions
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5
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -2096,9 +2096,10 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
Opts.Deprecated);
// FIXME: Eliminate this dependency.
unsigned Opt = getOptimizationLevel(Args, IK, Diags);
unsigned Opt = getOptimizationLevel(Args, IK, Diags),
OptSize = getOptimizationLevelSize(Args, IK, Diags);
Opts.Optimize = Opt != 0;
Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags);
Opts.OptimizeSize = OptSize != 0;
// This is the __NO_INLINE__ define, which just depends on things like the
// optimization level and -fno-inline, not actually whether the backend has