[driver] Add -mglobal-merge/-mno-global-merge machine options to enable/disable merging of
globals during codegen.
Fixes <rdar://problem/10017909>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index aee6908..64b5e83 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -207,6 +207,8 @@
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 @@
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);