From 35d62be3343ce7c61b48ea28faa78f0f3aae21e2 Mon Sep 17 00:00:00 2001
From: Frits van Bommel <fvbommel@wxs.nl>
Date: Tue, 12 May 2009 16:02:51 +0200
Subject: [PATCH] Remove some other code that tested for LLVM before r67588.

---
 gen/linkage.h  | 18 ------------------
 gen/main.cpp   | 11 -----------
 gen/tollvm.cpp |  8 --------
 3 files changed, 37 deletions(-)

diff --git a/gen/linkage.h b/gen/linkage.h
index 506ce50bde..c296df98a7 100644
--- a/gen/linkage.h
+++ b/gen/linkage.h
@@ -1,31 +1,13 @@
 #ifndef LDC_GEN_LINKAGE_H
 #define LDC_GEN_LINKAGE_H
 
-#include "gen/llvm-version.h"
-
 // Make it easier to test new linkage types
-// Also used to adapt to some changes in LLVM between 2.5 and 2.6
 
-
-// LLVM r66339 introduces LinkOnceODRLinkage, which is just what we want here.
-// (It also renamed LinkOnceLinkage, so this #if is needed for LDC to compile
-// with both 2.5 and trunk)
-#if LLVM_REV >= 66339
 #  define TEMPLATE_LINKAGE_TYPE         llvm::GlobalValue::LinkOnceODRLinkage
 #  define TYPEINFO_LINKAGE_TYPE         llvm::GlobalValue::LinkOnceODRLinkage
 // The One-Definition-Rule shouldn't matter for debug info, right?
 #  define DEBUGINFO_LINKONCE_LINKAGE_TYPE \
                                         llvm::GlobalValue::LinkOnceAnyLinkage
 
-// For 2.5 and any LLVM revision before 66339 we want to use LinkOnceLinkage
-// It's equivalent to LinkOnceAnyLinkage in trunk except that the inliner had a
-// hack (removed in r66339) to allow inlining of templated functions even though
-// LinkOnce doesn't technically allow that.
-#else
-#  define TEMPLATE_LINKAGE_TYPE         llvm::GlobalValue::LinkOnceLinkage
-#  define TYPEINFO_LINKAGE_TYPE         llvm::GlobalValue::LinkOnceLinkage
-#  define DEBUGINFO_LINKONCE_LINKAGE_TYPE \
-                                        llvm::GlobalValue::LinkOnceLinkage
-#endif
 
 #endif
diff --git a/gen/main.cpp b/gen/main.cpp
index adcf2d519e..4a8d06fd9d 100644
--- a/gen/main.cpp
+++ b/gen/main.cpp
@@ -37,7 +37,6 @@
 #include "gen/irstate.h"
 #include "gen/toobj.h"
 #include "gen/passes/Passes.h"
-#include "gen/llvm-version.h"
 
 #include "gen/cl_options.h"
 #include "gen/cl_helpers.h"
@@ -881,16 +880,6 @@ int main(int argc, char** argv)
             delete llvmModules[i];
         }
         
-#if LLVM_REV < 66404
-        // Workaround for llvm bug #3749
-        // Not needed since LLVM r66404 (it no longer checks for this)
-        llvm::GlobalVariable* ctors = linker.getModule()->getGlobalVariable("llvm.global_ctors");
-        if (ctors) {
-            ctors->removeDeadConstantUsers();
-            assert(ctors->use_empty());
-        }
-#endif
-        
         m->deleteObjFile();
         writeModule(linker.getModule(), filename);
         global.params.objfiles->push(filename);
diff --git a/gen/tollvm.cpp b/gen/tollvm.cpp
index 49adecf5ac..a2376a6bbf 100644
--- a/gen/tollvm.cpp
+++ b/gen/tollvm.cpp
@@ -543,16 +543,8 @@ llvm::ConstantFP* DtoConstFP(Type* t, long double value)
         return LLConstantFP::get(llty, value);
     else if(llty == LLType::X86_FP80Ty) {
         uint64_t bits[] = {0, 0};
-    #if LLVM_REV < 67562
-        // Prior to r67562, the i80 APInt format expected by the APFloat
-        // constructor was different than the memory layout on the actual
-        // processor.
-        bits[1] = *(uint16_t*)&value;
-        bits[0] = *(uint64_t*)((uint16_t*)&value + 1);
-    #else
         bits[0] = *(uint64_t*)&value;
         bits[1] = *(uint16_t*)((uint64_t*)&value + 1);
-    #endif
         return LLConstantFP::get(APFloat(APInt(80, 2, bits)));
     } else {
         assert(0 && "Unknown floating point type encountered");