Removed LLVM 3.0 compatibility code.

There might be still some pieces left here and there, and
there is certainly code that could be rewritten in a nicer
way with the 3.0 requirement out of the picture.

driver/main.cpp

@@ -512,13 +512,11 @@ int main(int argc, char** argv)
             // FIXME: Detect O32/N32 variants (MIPS_{O32,N32}[_SoftFP,_HardFP]).
             VersionCondition::addPredefinedGlobalIdent("MIPS");
             break;
-#if LDC_LLVM_VER >= 301
         case llvm::Triple::mips64:
         case llvm::Triple::mips64el:
             // FIXME: Detect N64 variants (MIPS64_N64[_SoftFP,_HardFP]).
             VersionCondition::addPredefinedGlobalIdent("MIPS64");
             break;
-#endif
         case llvm::Triple::sparc:
             // FIXME: Detect SPARC v8+ (SPARC_V8Plus).
             // FIXME: Detect soft float (SPARC_SoftFP/SPARC_HardFP).

driver/target.cpp

@@ -13,7 +13,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "driver/target.h"
-#include "gen/llvmcompat.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/MC/SubtargetFeature.h"
 #include "llvm/Support/Host.h"
@@ -88,19 +87,11 @@ llvm::TargetMachine* createTargetMachine(
     std::string defaultTriple = llvm::sys::getDefaultTargetTriple();
     if (sizeof(void*) == 4 && bitness == ExplicitBitness::M64)
     {
-#if LDC_LLVM_VER >= 301
         defaultTriple = llvm::Triple(defaultTriple).get64BitArchVariant().str();
-#else
-        defaultTriple = llvm::Triple__get64BitArchVariant(defaultTriple).str();
-#endif
     }
     else if (sizeof(void*) == 8 && bitness == ExplicitBitness::M32)
     {
-#if LDC_LLVM_VER >= 301
         defaultTriple = llvm::Triple(defaultTriple).get32BitArchVariant().str();
-#else
-        defaultTriple = llvm::Triple__get32BitArchVariant(defaultTriple).str();
-#endif
     }
 
     llvm::Triple triple;
@@ -182,12 +173,6 @@ llvm::TargetMachine* createTargetMachine(
         relocModel = llvm::Reloc::PIC_;
     }
 
-#if LDC_LLVM_VER == 300
-    llvm::NoFramePointerElim = genDebugInfo;
-
-    return theTarget->createTargetMachine(triple.str(), cpu, FeaturesStr,
-        relocModel, codeModel);
-#else
     llvm::TargetOptions targetOptions;
     targetOptions.NoFramePointerElim = genDebugInfo;
 
@@ -200,5 +185,4 @@ llvm::TargetMachine* createTargetMachine(
         codeModel,
         codeGenOptLevel
     );
-#endif
 }

driver/target.h

@@ -16,9 +16,6 @@
 #define LDC_DRIVER_TARGET_H
 
 #include "llvm/Support/CodeGen.h"
-#if LDC_LLVM_VER == 300
-#include "llvm/Target/TargetMachine.h" // For llvm::CodeGenOpt::Level.
-#endif
 #include <string>
 #include <vector>