diff --git a/gen/main.cpp b/gen/main.cpp
index 2f1ecf2b..23802795 100644
--- a/gen/main.cpp
+++ b/gen/main.cpp
@@ -7,17 +7,13 @@
 #include "gen/llvm-version.h"
 #include "llvm/LinkAllVMCore.h"
 #include "llvm/Linker.h"
-#if LLVM_REV >= 74640
 #include "llvm/LLVMContext.h"
-#endif
 #include "llvm/System/Signals.h"
 #include "llvm/Target/SubtargetFeature.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetMachineRegistry.h"
-#if LLVM_REV >= 73610
 #include "llvm/Target/TargetSelect.h"
-#endif
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -406,11 +402,7 @@ int main(int argc, char** argv)
     if (global.errors)
         fatal();
 
-#if LLVM_REV >= 74640
     llvm::Module mod("dummy", llvm::getGlobalContext());
-#else
-    llvm::Module mod("dummy");
-#endif
 
     // override triple if needed
     const char* defaultTriple = DEFAULT_TARGET_TRIPLE;
@@ -439,12 +431,10 @@ int main(int argc, char** argv)
     // Allocate target machine.
     
     // first initialize llvm
-#if LLVM_REV >= 73610
 #define LLVM_TARGET(A) LLVMInitialize##A##Target(); LLVMInitialize##A##AsmPrinter();
 // this is defined to be LLVM_TARGET(target name 1) LLVM_TARGET(target name 2) ...
 LDC_TARGETS
 #undef LLVM_TARGET
-#endif
 
     // Check whether the user has explicitly specified an architecture to compile for.
     if (mArch == 0)
@@ -843,16 +833,12 @@ LDC_TARGETS
          * not be found at link time.
          */
         if (!global.params.useArrayBounds && !global.params.useAssert)
-#elif LLVM_REV >= 68940
+#else
     // This doesn't play nice with debug info at the moment
     if (!global.params.symdebug && willInline())
     {
         global.params.useAvailableExternally = true;
         Logger::println("Running some extra semantic3's for inlining purposes");
-#else
-    // IN_LLVM, but available_externally not available yet.
-    if (false)
-    {
 #endif
         {
             // Do pass 3 semantic analysis on all imported modules,
@@ -930,11 +916,8 @@ LDC_TARGETS
         char* name = m->toChars();
         char* filename = m->objfile->name->str;
         
-#if LLVM_REV >= 74640
         llvm::Linker linker(name, name, llvm::getGlobalContext());
-#else
-        llvm::Linker linker(name, name);
-#endif
+
         std::string errormsg;
         for (int i = 0; i < llvmModules.size(); i++)
         {
diff --git a/gen/metadata.h b/gen/metadata.h
index 949f8a7d..035d16ee 100644
--- a/gen/metadata.h
+++ b/gen/metadata.h
@@ -3,11 +3,6 @@
 
 #include "gen/llvm-version.h"
 
-#if LLVM_REV >= 68420
-// Yay, we have metadata!
-
-// The metadata interface is still in flux...
-#if LLVM_REV >= 71407
     // MDNode was moved into its own header, and contains Value*s
     #include "llvm/MDNode.h"
     typedef llvm::Value MDNodeField;
@@ -19,19 +14,6 @@
     inline MDNodeField* MD_GetElement(llvm::MDNode* N, unsigned i) {
         return N->getElement(i);
     }
-#else
-    // MDNode is in Constants.h, and contains Constant*s
-    #include "llvm/Constants.h"
-    typedef llvm::Constant MDNodeField;
-    
-    // Use getNumOperands() and getOperand() to access elements.
-    inline unsigned MD_GetNumElements(llvm::MDNode* N) {
-        return N->getNumOperands();
-    }
-    inline MDNodeField* MD_GetElement(llvm::MDNode* N, unsigned i) {
-        return N->getOperand(i);
-    }
-#endif
 
 #define USE_METADATA
 #define METADATA_LINKAGE_TYPE  llvm::GlobalValue::WeakODRLinkage
@@ -42,14 +24,7 @@
 /// The fields in the metadata node for a TypeInfo instance.
 /// (Its name will be TD_PREFIX ~ <Name of TypeInfo global>)
 enum TypeDataFields {
-#if LLVM_REV < 71407
-    // TD_Confirm is disabled for older revisions due to an LLVM bug when
-    // MDNodes contain globals
-    // (see http://llvm.org/PR4180 / http://llvm.org/PR4046 )
-    TD_Confirm = -1,/// The TypeInfo this node is for.
-#else
     TD_Confirm,     /// The TypeInfo this node is for.
-#endif
     
     TD_Type,        /// A value of the LLVM type corresponding to this D type
     
@@ -73,5 +48,3 @@ enum ClassDataFields {
 };
 
 #endif
-
-#endif
diff --git a/gen/optimizer.cpp b/gen/optimizer.cpp
index a4368f7b..5e1e8624 100644
--- a/gen/optimizer.cpp
+++ b/gen/optimizer.cpp
@@ -212,9 +212,7 @@ static void addPassesForOptLevel(PassManager& pm) {
     }
 
     if (optimizeLevel >= 1) {
-#if LLVM_REV >= 68940
         addPass(pm, createStripExternalsPass());
-#endif
         addPass(pm, createGlobalDCEPass());
     }
 
diff --git a/gen/passes/Passes.h b/gen/passes/Passes.h
index 118ca759..5b2758cb 100644
--- a/gen/passes/Passes.h
+++ b/gen/passes/Passes.h
@@ -15,8 +15,6 @@ llvm::FunctionPass* createGarbageCollect2Stack();
 llvm::ModulePass* createStripMetaData();
 #endif
 
-#if LLVM_REV >= 68940
 llvm::ModulePass* createStripExternalsPass();
-#endif
 
 #endif
diff --git a/gen/passes/StripExternals.cpp b/gen/passes/StripExternals.cpp
index 19303881..b62c7df6 100644
--- a/gen/passes/StripExternals.cpp
+++ b/gen/passes/StripExternals.cpp
@@ -17,9 +17,6 @@
 
 #include "gen/llvm-version.h"
 
-#if LLVM_REV >= 68940
-
-
 #define DEBUG_TYPE "strip-externals"
 
 #include "Passes.h"
@@ -96,5 +93,3 @@ bool StripExternals::runOnModule(Module &M) {
 
   return Changed;
 }
-
-#endif //LLVM_REV >= 68940
diff --git a/gen/runtime.cpp b/gen/runtime.cpp
index 6dd8994d..a18b8890 100644
--- a/gen/runtime.cpp
+++ b/gen/runtime.cpp
@@ -1,8 +1,6 @@
 #include "gen/llvm.h"
 #include "gen/llvm-version.h"
-#if LLVM_REV >= 74640
 #include "llvm/LLVMContext.h"
-#endif
 #include "llvm/Module.h"
 #include "llvm/Attributes.h"
 #include "llvm/Bitcode/ReaderWriter.h"
@@ -153,11 +151,7 @@ static const LLType* rt_dg2()
 static void LLVM_D_BuildRuntimeModule()
 {
     Logger::println("building module");
-#if LLVM_REV >= 74640
     M = new llvm::Module("ldc internal runtime", llvm::getGlobalContext());
-#else
-    M = new llvm::Module("ldc internal runtime");
-#endif
 
     Logger::println("building basic types");
     const LLType* voidTy = LLType::VoidTy;
diff --git a/gen/tollvm.cpp b/gen/tollvm.cpp
index 7c155477..6024c2b0 100644
--- a/gen/tollvm.cpp
+++ b/gen/tollvm.cpp
@@ -241,11 +241,9 @@ LLGlobalValue::LinkageTypes DtoLinkage(Dsymbol* sym)
     {
         if (mustDefineSymbol(vd))
             Logger::println("Variable %savailable externally: %s", (vd->availableExternally ? "" : "not "), vd->toChars());
-#if LLVM_REV >= 68940
         // generated by inlining semantics run
         if (vd->availableExternally && mustDefineSymbol(sym))
             return llvm::GlobalValue::AvailableExternallyLinkage;
-#endif
         // template
         if (needsTemplateLinkage(sym))
             return TEMPLATE_LINKAGE_TYPE;
@@ -261,11 +259,9 @@ LLGlobalValue::LinkageTypes DtoLinkage(Dsymbol* sym)
         // intrinsics are always external
         if (fdecl->llvmInternal == LLVMintrinsic)
             return llvm::GlobalValue::ExternalLinkage;
-#if LLVM_REV >= 68940
         // generated by inlining semantics run
         if (fdecl->availableExternally && mustDefineSymbol(sym))
             return llvm::GlobalValue::AvailableExternallyLinkage;
-#endif
         // array operations are always template linkage
         if (fdecl->isArrayOp)
             return TEMPLATE_LINKAGE_TYPE;
@@ -283,11 +279,9 @@ LLGlobalValue::LinkageTypes DtoLinkage(Dsymbol* sym)
     {
         if (mustDefineSymbol(cd))
             Logger::println("Class %savailable externally: %s", (cd->availableExternally ? "" : "not "), vd->toChars());
-#if LLVM_REV >= 68940
         // generated by inlining semantics run
         if (cd->availableExternally && mustDefineSymbol(sym))
             return llvm::GlobalValue::AvailableExternallyLinkage;
-#endif
         // template
         if (needsTemplateLinkage(cd))
             return TEMPLATE_LINKAGE_TYPE;
@@ -339,10 +333,8 @@ static bool isAvailableExternally(Dsymbol* sym)
 llvm::GlobalValue::LinkageTypes DtoInternalLinkage(Dsymbol* sym)
 {
     if (needsTemplateLinkage(sym)) {
-#if LLVM_REV >= 68940
         if (isAvailableExternally(sym) && mustDefineSymbol(sym))
             return llvm::GlobalValue::AvailableExternallyLinkage;
-#endif
         return TEMPLATE_LINKAGE_TYPE;
     }
     else
@@ -351,10 +343,8 @@ llvm::GlobalValue::LinkageTypes DtoInternalLinkage(Dsymbol* sym)
 
 llvm::GlobalValue::LinkageTypes DtoExternalLinkage(Dsymbol* sym)
 {
-#if LLVM_REV >= 68940
     if (isAvailableExternally(sym) && mustDefineSymbol(sym))
         return llvm::GlobalValue::AvailableExternallyLinkage;
-#endif
     if (needsTemplateLinkage(sym))
         return TEMPLATE_LINKAGE_TYPE;
     else
@@ -768,11 +758,7 @@ size_t getTypeStoreSize(const LLType* t)
 
 size_t getTypePaddedSize(const LLType* t)
 {
-#if LLVM_REV > 71348
     size_t sz = gTargetData->getTypeAllocSize(t);
-#else
-    size_t sz = gTargetData->getTypePaddedSize(t);
-#endif
     //Logger::cout() << "abi type size of: " << *t << " == " << sz << '\n';
     return sz;
 }
diff --git a/gen/toobj.cpp b/gen/toobj.cpp
index 1e7b12fd..8d4ee5d6 100644
--- a/gen/toobj.cpp
+++ b/gen/toobj.cpp
@@ -14,9 +14,7 @@
 #include "gen/llvm-version.h"
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Bitcode/ReaderWriter.h"
-#if LLVM_REV >= 74640
 #include "llvm/LLVMContext.h"
-#endif
 #include "llvm/Module.h"
 #include "llvm/ModuleProvider.h"
 #include "llvm/PassManager.h"
@@ -97,11 +95,7 @@ llvm::Module* Module::genLLVMModule(Ir* sir)
 
     // create a new ir state
     // TODO look at making the instance static and moving most functionality into IrModule where it belongs
-#if LLVM_REV >= 74640
     IRState ir(new llvm::Module(mname, llvm::getGlobalContext()));
-#else
-    IRState ir(new llvm::Module(mname));
-#endif
     gIR = &ir;
     ir.dmodule = this;
 
@@ -307,15 +301,6 @@ void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_f
     // Ask the target to add backend passes as necessary.
     MachineCodeEmitter *MCE = 0;
 
-#if LLVM_REV < 70343
-    // Last argument is bool Fast
-    // debug info doesn't work properly without fast!
-    bool LastArg = !optimize() || global.params.symdebug;
-#elif LLVM_REV < 70459
-    // Last argument is unsigned OptLevel
-    // debug info doesn't work properly with OptLevel > 0!
-    unsigned LastArg = global.params.symdebug ? 0 : optLevel();
-#else
     // Last argument is enum CodeGenOpt::Level OptLevel
     // debug info doesn't work properly with OptLevel != None!
     CodeGenOpt::Level LastArg = CodeGenOpt::Default;
@@ -323,7 +308,7 @@ void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_f
         LastArg = CodeGenOpt::None;
     else if (optLevel() >= 3)
         LastArg = CodeGenOpt::Aggressive;
-#endif
+
     FileModel::Model mod = Target.addPassesToEmitFile(Passes, out, TargetMachine::AssemblyFile, LastArg);
     assert(mod == FileModel::AsmFile);