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[driver] Add -mglobal-merge/-mno-global-merge machine options to enable/disable merging of

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globals during codegen.
Fixes <rdar://problem/10017909>.

llvm-svn: 138612
This commit is contained in:
Chad Rosier
2011-08-26 00:26:29 +00:00
parent 35bc5de3bd
commit ba3df1d3ca
7 changed files with 30 additions and 0 deletions
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3
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -207,6 +207,8 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts,
Res.push_back("-mregparm");
Res.push_back(llvm::utostr(Opts.NumRegisterParameters));
}
if (Opts.NoGlobalMerge)
Res.push_back("-mno-global-merge");
if (Opts.NoExecStack)
Res.push_back("-mnoexecstack");
if (Opts.RelaxAll)
@@ -1027,6 +1029,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags);
Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge);
Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);