LLVM < 3.5 is unsupported since bb18a3c

Author: tamird

src/etc/mklldeps.py

@@ -46,13 +46,8 @@ def run(args):
 
 f.write("\n")
 
-version = run([llconfig, '--version']).strip()
-
 # LLVM libs
-if version < '3.5':
-    args = [llconfig, '--libs']
-else:
-    args = [llconfig, '--libs', '--system-libs']
+args = [llconfig, '--libs', '--system-libs']
 
 args.extend(components)
 out = run(args)
@@ -73,11 +68,6 @@ def run(args):
         f.write(", kind = \"static\"")
     f.write(")]\n")
 
-# llvm-config before 3.5 didn't have a system-libs flag
-if version < '3.5':
-    if os == 'win32':
-        f.write("#[link(name = \"imagehlp\")]")
-
 # LLVM ldflags
 out = run([llconfig, '--ldflags'])
 for lib in out.strip().split(' '):

src/rustllvm/ExecutionEngineWrapper.cpp

@@ -89,12 +89,12 @@ extern "C" LLVMExecutionEngineRef LLVMBuildExecutionEngine(
     options.NoFramePointerElim = true;
 
     ExecutionEngine *ee =
-    #if LLVM_VERSION_MINOR <= 5
-        EngineBuilder(unwrap(mod))
-            .setMCJITMemoryManager(unwrap(mref))
-    #else
+    #if LLVM_VERSION_MINOR >= 6
         EngineBuilder(std::unique_ptr<Module>(unwrap(mod)))
             .setMCJITMemoryManager(std::unique_ptr<RustJITMemoryManager>(unwrap(mref)))
+    #else
+        EngineBuilder(unwrap(mod))
+            .setMCJITMemoryManager(unwrap(mref))
     #endif
             .setEngineKind(EngineKind::JIT)
             .setErrorStr(&error_str)

src/rustllvm/PassWrapper.cpp

@@ -92,9 +92,6 @@ LLVMRustCreateTargetMachine(const char *triple,
     TargetOptions Options;
     Options.PositionIndependentExecutable = PositionIndependentExecutable;
     Options.NoFramePointerElim = NoFramePointerElim;
-#if LLVM_VERSION_MINOR < 5
-    Options.EnableSegmentedStacks = EnableSegmentedStacks;
-#endif
     Options.FloatABIType = FloatABI::Default;
     Options.UseSoftFloat = UseSoftFloat;
     if (UseSoftFloat) {
@@ -128,10 +125,8 @@ LLVMRustAddAnalysisPasses(LLVMTargetMachineRef TM,
     PassManagerBase *PM = unwrap(PMR);
 #if LLVM_VERSION_MINOR >= 6
     PM->add(new DataLayoutPass());
-#elif LLVM_VERSION_MINOR == 5
-    PM->add(new DataLayoutPass(unwrap(M)));
 #else
-    PM->add(new DataLayout(unwrap(M)));
+    PM->add(new DataLayoutPass(unwrap(M)));
 #endif
     unwrap(TM)->addAnalysisPasses(*PM);
 }
@@ -202,10 +197,8 @@ LLVMRustWriteOutputFile(LLVMTargetMachineRef Target,
   raw_fd_ostream OS(path, EC, sys::fs::F_None);
   if (EC)
     ErrorInfo = EC.message();
-#elif LLVM_VERSION_MINOR >= 4
-  raw_fd_ostream OS(path, ErrorInfo, sys::fs::F_None);
 #else
-  raw_fd_ostream OS(path, ErrorInfo, raw_fd_ostream::F_Binary);
+  raw_fd_ostream OS(path, ErrorInfo, sys::fs::F_None);
 #endif
   if (ErrorInfo != "") {
     LLVMRustSetLastError(ErrorInfo.c_str());
@@ -230,19 +223,13 @@ LLVMRustPrintModule(LLVMPassManagerRef PMR,
   raw_fd_ostream OS(path, EC, sys::fs::F_None);
   if (EC)
     ErrorInfo = EC.message();
-#elif LLVM_VERSION_MINOR >= 4
+#elif
   raw_fd_ostream OS(path, ErrorInfo, sys::fs::F_None);
-#else
-  raw_fd_ostream OS(path, ErrorInfo, raw_fd_ostream::F_Binary);
 #endif
 
   formatted_raw_ostream FOS(OS);
 
-#if LLVM_VERSION_MINOR >= 5
   PM->add(createPrintModulePass(FOS));
-#else
-  PM->add(createPrintModulePass(&FOS));
-#endif
 
   PM->run(*unwrap(M));
 }

src/rustllvm/RustWrapper.cpp

@@ -412,7 +412,7 @@ extern "C" LLVMMetadataRef LLVMDIBuilderCreateStaticVariable(
     bool isLocalToUnit,
     LLVMValueRef Val,
     LLVMMetadataRef Decl = NULL) {
-#if LLVM_VERSION_MINOR == 6
+#if LLVM_VERSION_MINOR >= 6
     return wrap(Builder->createGlobalVariable(unwrapDI<DIDescriptor>(Context),
 #else
     return wrap(Builder->createStaticVariable(unwrapDI<DIDescriptor>(Context),
@@ -440,7 +440,7 @@ extern "C" LLVMMetadataRef LLVMDIBuilderCreateVariable(
     int64_t* AddrOps,
     unsigned AddrOpsCount,
     unsigned ArgNo) {
-#if LLVM_VERSION_MINOR < 6
+#if LLVM_VERSION_MINOR == 5
     if (AddrOpsCount > 0) {
         SmallVector<llvm::Value *, 16> addr_ops;
         llvm::Type *Int64Ty = Type::getInt64Ty(unwrap<MDNode>(Scope)->getContext());
@@ -707,12 +707,12 @@ extern "C" void LLVMWriteValueToString(LLVMValueRef Value, RustStringRef str) {
 extern "C" bool
 LLVMRustLinkInExternalBitcode(LLVMModuleRef dst, char *bc, size_t len) {
     Module *Dst = unwrap(dst);
-#if LLVM_VERSION_MINOR == 5
-    MemoryBuffer* buf = MemoryBuffer::getMemBufferCopy(StringRef(bc, len));
-    ErrorOr<Module *> Src = llvm::getLazyBitcodeModule(buf, Dst->getContext());
-#else
+#if LLVM_VERSION_MINOR >= 6
     std::unique_ptr<MemoryBuffer> buf = MemoryBuffer::getMemBufferCopy(StringRef(bc, len));
     ErrorOr<Module *> Src = llvm::getLazyBitcodeModule(std::move(buf), Dst->getContext());
+#else
+    MemoryBuffer* buf = MemoryBuffer::getMemBufferCopy(StringRef(bc, len));
+    ErrorOr<Module *> Src = llvm::getLazyBitcodeModule(buf, Dst->getContext());
 #endif
     if (!Src) {
         LLVMRustSetLastError(Src.getError().message().c_str());

src/rustllvm/rustllvm.h

@@ -46,17 +46,10 @@
 #include "llvm-c/ExecutionEngine.h"
 #include "llvm-c/Object.h"
 
-#if LLVM_VERSION_MINOR >= 5
 #include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/IR/DebugInfo.h"
 #include "llvm/IR/DIBuilder.h"
 #include "llvm/Linker/Linker.h"
-#else
-#include "llvm/Assembly/PrintModulePass.h"
-#include "llvm/DebugInfo.h"
-#include "llvm/DIBuilder.h"
-#include "llvm/Linker.h"
-#endif
 
 // Used by RustMCJITMemoryManager::getPointerToNamedFunction()
 // to get around glibc issues. See the function for more information.