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CFE Knob for: Add a thread-model knob for lowering atomics on baremetal & single threaded systems

Browse Source 
http://reviews.llvm.org/D4985

llvm-svn: 219027
This commit is contained in:
Jonathan Roelofs
2014-10-03 21:57:44 +00:00
parent 0820e13e2a
commit b140a100a0
10 changed files with 72 additions and 5 deletions
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5
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -440,6 +440,11 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Args.hasArg(OPT_cl_fast_relaxed_math);
Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_mthread_model)->getAsString(Args)
<< Opts.ThreadModel;
Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);