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Fix -save-temp when using objc-arc, sanitizer and profiling

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Currently, -save-temp will cause ObjCARC optimization to be dropped,
sanitizer pass to run early in the pipeline, and profiling
instrumentation to run twice.
Fix the issue by properly disable all passes in the optimization
pipeline when generating bitcode output and parse some of the Language
Options even when the input is bitcode so the passes can be setup
correctly.

llvm-svn: 242565
This commit is contained in:
Steven Wu
2015-07-17 20:09:56 +00:00
parent 76c2f2c9da
commit 546a19628b
8 changed files with 56 additions and 12 deletions
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12
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -426,6 +426,7 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
@@ -1887,7 +1888,16 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
Res.getTargetOpts());
ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
if (DashX != IK_AST && DashX != IK_LLVM_IR) {
if (DashX == IK_AST || DashX == IK_LLVM_IR) {
// ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
// PassManager in BackendUtil.cpp. They need to be initializd no matter
// what the input type is.
if (Args.hasArg(OPT_fobjc_arc))
Res.getLangOpts()->ObjCAutoRefCount = 1;
parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
Diags, Res.getLangOpts()->Sanitize);
} else {
// Other LangOpts are only initialzed when the input is not AST or LLVM IR.
ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags);
if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
Res.getLangOpts()->ObjCExceptions = 1;