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Add command line option for the thread model.

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On Linux/PPC, just ignore the provided model. Only local-exec is supported.
This commit is contained in:
kai
2013-07-10 07:52:48 +02:00
parent 625be12aee
commit e5655c5e05
1 changed files with 26 additions and 3 deletions
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29
gen/llvmhelpers.cpp
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@@ -35,6 +35,24 @@
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include <stack>
#if LDC_LLVM_VER >= 302
#include "llvm/Support/CommandLine.h"
llvm::cl::opt<llvm::GlobalVariable::ThreadLocalMode> clThreadModel("fthread-model",
llvm::cl::desc("Thread model"),
llvm::cl::init(llvm::GlobalVariable::GeneralDynamicTLSModel),
llvm::cl::values(
clEnumValN(llvm::GlobalVariable::GeneralDynamicTLSModel, "global-dynamic",
"Global dynamic TLS model (default)"),
clEnumValN(llvm::GlobalVariable::LocalDynamicTLSModel, "local-dynamic",
"Local dynamic TLS model"),
clEnumValN(llvm::GlobalVariable::InitialExecTLSModel, "initial-exec",
"Initial exec TLS model"),
clEnumValN(llvm::GlobalVariable::LocalExecTLSModel, "local-exec",
"Local exec TLS model"),
clEnumValEnd));
#endif
/****************************************************************************************/
/*////////////////////////////////////////////////////////////////////////////////////////
// DYNAMIC MEMORY HELPERS
@@ -2027,10 +2045,15 @@ llvm::GlobalVariable* getOrCreateGlobal(Loc loc, llvm::Module& module,
}
#if LDC_LLVM_VER >= 302
// FIXME: clang uses a command line option for the thread model
// Use a command line option for the thread model.
// On PPC there is only local-exec available - in this case just ignore the
// command line.
const llvm::GlobalVariable::ThreadLocalMode tlsModel =
isThreadLocal ? llvm::GlobalVariable::GeneralDynamicTLSModel
: llvm::GlobalVariable::NotThreadLocal;
isThreadLocal
? (global.params.targetTriple.getArch() == llvm::Triple::ppc
? llvm::GlobalVariable::LocalExecTLSModel
: clThreadModel.getValue())
: llvm::GlobalVariable::NotThreadLocal;
return new llvm::GlobalVariable(module, type, isConstant, linkage,
init, name, 0, tlsModel);
#else