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Backend: Switch to using TargetOptions or TargetMachine to set some options instead of llvm::cl. 

llvm-svn: 91229
This commit is contained in:
Daniel Dunbar 2009-12-12 23:01:36 +00:00
parent 8eada9f580
commit efa39f7db1
1 changed files with 40 additions and 20 deletions
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60
clang/lib/Frontend/Backend.cpp
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@ -32,6 +32,7 @@
#include "llvm/Target/SubtargetFeature.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegistry.h"
using namespace clang;
using namespace llvm;
@ -219,38 +220,57 @@ bool BackendConsumer::AddEmitPasses() {
// FIXME: Expose these capabilities via actual APIs!!!! Aside from just
// being gross, this is also totally broken if we ever care about
// concurrency.
llvm::NoFramePointerElim = CodeGenOpts.DisableFPElim;
if (CodeGenOpts.FloatABI == "soft")
llvm::FloatABIType = llvm::FloatABI::Soft;
else if (CodeGenOpts.FloatABI == "hard")
llvm::FloatABIType = llvm::FloatABI::Hard;
else {
assert(CodeGenOpts.FloatABI.empty() && "Invalid float abi!");
llvm::FloatABIType = llvm::FloatABI::Default;
}
NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
llvm::UseSoftFloat = CodeGenOpts.SoftFloat;
UnwindTablesMandatory = CodeGenOpts.UnwindTables;
TargetMachine::setAsmVerbosityDefault(CodeGenOpts.AsmVerbose);
// FIXME: Parse this earlier.
if (CodeGenOpts.RelocationModel == "static") {
TargetMachine::setRelocationModel(llvm::Reloc::Static);
} else if (CodeGenOpts.RelocationModel == "pic") {
TargetMachine::setRelocationModel(llvm::Reloc::PIC_);
} else {
assert(CodeGenOpts.RelocationModel == "dynamic-no-pic" &&
"Invalid PIC model!");
TargetMachine::setRelocationModel(llvm::Reloc::DynamicNoPIC);
}
// FIXME: Parse this earlier.
if (CodeGenOpts.CodeModel == "small") {
TargetMachine::setCodeModel(llvm::CodeModel::Small);
} else if (CodeGenOpts.CodeModel == "kernel") {
TargetMachine::setCodeModel(llvm::CodeModel::Kernel);
} else if (CodeGenOpts.CodeModel == "medium") {
TargetMachine::setCodeModel(llvm::CodeModel::Medium);
} else if (CodeGenOpts.CodeModel == "large") {
TargetMachine::setCodeModel(llvm::CodeModel::Large);
} else {
assert(CodeGenOpts.CodeModel.empty() && "Invalid code model!");
TargetMachine::setCodeModel(llvm::CodeModel::Default);
}
std::vector<const char *> BackendArgs;
BackendArgs.push_back("clang"); // Fake program name.
if (CodeGenOpts.AsmVerbose)
BackendArgs.push_back("-asm-verbose");
if (!CodeGenOpts.CodeModel.empty()) {
BackendArgs.push_back("-code-model");
BackendArgs.push_back(CodeGenOpts.CodeModel.c_str());
}
if (!CodeGenOpts.DebugPass.empty()) {
BackendArgs.push_back("-debug-pass");
BackendArgs.push_back(CodeGenOpts.DebugPass.c_str());
}
if (CodeGenOpts.DisableFPElim)
BackendArgs.push_back("-disable-fp-elim");
if (!CodeGenOpts.FloatABI.empty()) {
BackendArgs.push_back("-float-abi");
BackendArgs.push_back(CodeGenOpts.FloatABI.c_str());
}
if (!CodeGenOpts.LimitFloatPrecision.empty()) {
BackendArgs.push_back("-limit-float-precision");
BackendArgs.push_back(CodeGenOpts.LimitFloatPrecision.c_str());
}
if (CodeGenOpts.NoZeroInitializedInBSS)
BackendArgs.push_back("-nozero-initialized-in-bss");
if (CodeGenOpts.SoftFloat)
BackendArgs.push_back("-soft-float");
BackendArgs.push_back("-relocation-model");
BackendArgs.push_back(CodeGenOpts.RelocationModel.c_str());
if (llvm::TimePassesIsEnabled)
BackendArgs.push_back("-time-passes");
if (CodeGenOpts.UnwindTables)
BackendArgs.push_back("-unwind-tables");
BackendArgs.push_back(0);
llvm::cl::ParseCommandLineOptions(BackendArgs.size() - 1,
(char**) &BackendArgs[0]);