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Drop support for LLVM < 3.5

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This allows to clean up the code a little.
This commit is contained in:
Martin 2015-10-30 22:11:35 +01:00
parent 8eab25f2fa
commit 60d676e2a1
57 changed files with 35 additions and 1019 deletions
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34
driver/targetmachine.cpp
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@ -134,12 +134,10 @@ static std::string getX86TargetCPU(const llvm::Triple &triple)
return "i486";
if (triple.getOSName().startswith("netbsd"))
return "i486";
#if LDC_LLVM_VER >= 302
// All x86 devices running Android have core2 as their common
// denominator. This makes a better choice than pentium4.
if (triple.getEnvironment() == llvm::Triple::Android)
return "core2";
#endif
// Fallback to p4.
return "pentium4";
@ -269,13 +267,11 @@ static FloatABI::Type getARMFloatABI(const llvm::Triple &triple,
case llvm::Triple::EABI:
// EABI is always AAPCS, and if it was not marked 'hard', it's softfp
return FloatABI::SoftFP;
#if LDC_LLVM_VER >= 302
case llvm::Triple::Android: {
if (llvm::StringRef(llvmArchSuffix).startswith("v7"))
return FloatABI::SoftFP;
return FloatABI::Soft;
}
#endif
default:
// Assume "soft".
// TODO: Warn the user we are guessing.
@ -442,11 +438,7 @@ llvm::TargetMachine* createTargetMachine(
llvm::StringMapConstIterator<bool> i = hostFeatures.begin(),
end = hostFeatures.end();
for (; i != end; ++i)
#if LDC_LLVM_VER >= 305
features.AddFeature(std::string((i->second ? "+" : "-")).append(i->first()));
#else
features.AddFeature(i->first(), i->second);
#endif
}
}
#if LDC_LLVM_VER < 307
@ -468,13 +460,8 @@ llvm::TargetMachine* createTargetMachine(
// if the user did not make an explicit choice.
if (cpu == "x86-64")
{
#if LDC_LLVM_VER >= 304
const char* cx16_plus = "+cx16";
const char* cx16_minus = "-cx16";
#else
const char* cx16_plus = "+cmpxchg16b";
const char* cx16_minus = "-cmpxchg16b";
#endif
bool cx16 = false;
for (unsigned i = 0; i < attrs.size(); ++i)
if (attrs[i] == cx16_plus || attrs[i] == cx16_minus) cx16 = true;
@ -509,22 +496,6 @@ llvm::TargetMachine* createTargetMachine(
}
}
#if LDC_LLVM_VER < 305
if (triple.getArch() == llvm::Triple::arm && !triple.isOSDarwin())
{
// On ARM, we want to use EHABI exception handling, as we don't support
// SJLJ EH in druntime. Unfortunately, it is still in a partly
// experimental state, and the -arm-enable-ehabi-descriptors command
// line option is not exposed via an internal API at all.
const char *backendArgs[3] = {
"ldc2", // Fake name, irrelevant.
"-arm-enable-ehabi",
"-arm-enable-ehabi-descriptors"
};
llvm::cl::ParseCommandLineOptions(3, backendArgs);
}
#endif
llvm::TargetOptions targetOptions;
#if LDC_LLVM_VER < 307
targetOptions.NoFramePointerElim = noFramePointerElim;
@ -564,13 +535,8 @@ llvm::TargetMachine* createTargetMachine(
if (!noLinkerStripDead &&
(triple.getOS() == llvm::Triple::Linux || triple.getOS() == llvm::Triple::Win32))
{
#if LDC_LLVM_VER < 305
llvm::TargetMachine::setDataSections(true);
llvm::TargetMachine::setFunctionSections(true);
#else
targetOptions.FunctionSections = true;
targetOptions.DataSections = true;
#endif
}
return target->createTargetMachine(