ldc/driver/cl_options-llvm.cpp
2018-01-13 13:49:10 +01:00

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//===-- cl_options-llvm.cpp -----------------------------------------------===//
//
// LDC the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
#include "driver/cl_options-llvm.h"
// Pull in command-line options and helper functions from special LLVM header
// shared by multiple LLVM tools.
#if LDC_LLVM_VER >= 600
#include "llvm/CodeGen/CommandFlags.def"
#else
#include "llvm/CodeGen/CommandFlags.h"
#endif
static cl::opt<bool>
DisableRedZone("disable-red-zone", cl::ZeroOrMore,
cl::desc("Do not emit code that uses the red zone."));
// Now expose the helper functions (with static linkage) via external wrappers
// in the opts namespace, including some additional helper functions.
namespace opts {
std::string getArchStr() { return ::MArch; }
#if LDC_LLVM_VER >= 309
Optional<Reloc::Model> getRelocModel() { return ::getRelocModel(); }
#else
Reloc::Model getRelocModel() { return ::RelocModel; }
#endif
CodeModel::Model getCodeModel() { return ::CMModel; }
cl::boolOrDefault disableFPElim() {
return ::DisableFPElim.getNumOccurrences() == 0
? cl::BOU_UNSET
: ::DisableFPElim ? cl::BOU_TRUE : cl::BOU_FALSE;
}
bool disableRedZone() { return ::DisableRedZone; }
bool printTargetFeaturesHelp() {
if (MCPU == "help")
return true;
return std::any_of(MAttrs.begin(), MAttrs.end(),
[](const std::string &a) { return a == "help"; });
}
TargetOptions InitTargetOptionsFromCodeGenFlags() {
return ::InitTargetOptionsFromCodeGenFlags();
}
std::string getCPUStr() { return ::getCPUStr(); }
std::string getFeaturesStr() { return ::getFeaturesStr(); }
} // namespace opts
#if LDC_WITH_LLD && LDC_LLVM_VER >= 500
// LLD 5.0 uses the shared header too (for LTO) and exposes some wrappers in
// the lld namespace. Define them here to prevent the LLD object from being
// linked in with its conflicting command-line options.
namespace lld {
TargetOptions InitTargetOptionsFromCodeGenFlags() {
return ::InitTargetOptionsFromCodeGenFlags();
}
CodeModel::Model GetCodeModelFromCMModel() { return CMModel; }
}
#endif // LDC_WITH_LLD && LDC_LLVM_VER >= 500