The Darwin kernel does not provide useful guard variable support.
Issue this as an IR-gen error; it's not really worthwhile doing this
"right", i.e. in Sema, because IR gen knows a lot of tricks beyond
what the constant evaluator knows.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127854 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 859eb74..31fcee2 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -127,6 +127,8 @@
Res.push_back("-fno-merge-all-constants");
if (Opts.NoCommon)
Res.push_back("-fno-common");
+ if (Opts.ForbidGuardVariables)
+ Res.push_back("-fforbid-guard-variables");
if (Opts.NoImplicitFloat)
Res.push_back("-no-implicit-float");
if (Opts.OmitLeafFramePointer)
@@ -896,6 +898,7 @@
Opts.LimitDebugInfo = Args.hasArg(OPT_flimit_debug_info);
Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
+ Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);