Add support for LLVM 18 (#662)

.github/workflows/main.yml

@@ -20,15 +20,15 @@ jobs:
     strategy:
       matrix:
         os: ['macos-12', 'windows-2022']
-        llvm: ['11', '12', '13', '14', '15', '16', '17']
+        llvm: ['11', '12', '13', '14', '15', '16', '17', '18']
         cuda: ['0', '1']
         lua: ['luajit', 'moonjit']
         exclude:
           # macOS: exclude cuda
           - os: 'macos-12'
             cuda: '1'
 
-          # Windows: exclude LLVM 12-17
+          # Windows: exclude LLVM 12-18
           - os: 'windows-2022'
             llvm: '12'
           - os: 'windows-2022'
@@ -41,6 +41,8 @@ jobs:
             llvm: '16'
           - os: 'windows-2022'
             llvm: '17'
+          - os: 'windows-2022'
+            llvm: '18'
 
           # CUDA: only LLVM 11
           - llvm: '12'
@@ -55,6 +57,8 @@ jobs:
             cuda: '1'
           - llvm: '17'
             cuda: '1'
+          - llvm: '18'
+            cuda: '1'
 
           # Moonjit: only LLVM 12
           - llvm: '11'
@@ -69,6 +73,8 @@ jobs:
             lua: 'moonjit'
           - llvm: '17'
             lua: 'moonjit'
+          - llvm: '18'
+            lua: 'moonjit'
     steps:
       - uses: actions/checkout@v1
       - run: ./travis.sh
@@ -93,7 +99,7 @@ jobs:
     strategy:
       matrix:
         distro: ['ubuntu-18.04']
-        llvm: ['11', '12.0.1', '13.0.1', '14.0.6', '15.0.2', '16.0.3', '17.0.5']
+        llvm: ['11', '12.0.1', '13.0.1', '14.0.6', '15.0.2', '16.0.3', '17.0.5', '18.1.7']
         lua: ['luajit', 'moonjit']
         cuda: ['0', '1']
         test: ['1']
@@ -111,6 +117,8 @@ jobs:
             cuda: '1'
           - llvm: '17.0.5'
             cuda: '1'
+          - llvm: '18.1.7'
+            cuda: '1'
 
           # Moonjit with LLVM 14 only:
           - llvm: '11'
@@ -125,6 +133,8 @@ jobs:
             lua: 'moonjit'
           - llvm: '17.0.5'
             lua: 'moonjit'
+          - llvm: '18.1.7'
+            lua: 'moonjit'
 
         include:
           # Defaults:

CHANGES.md

@@ -2,7 +2,8 @@
 
 ## Added features
 
-  * Support for LLVM 17
+  * Support for LLVM 17 and 18
+  * Experimental support for SPIR-V code generation (e.g., for Intel GPUs)
 
 ## Fixed Bugs
 

cmake/Modules/FindClang.cmake

@@ -38,6 +38,9 @@ FIND_AND_ADD_CLANG_LIB(clangBasic)
 if(LLVM_VERSION_MAJOR GREATER 14)
   FIND_AND_ADD_CLANG_LIB(clangSupport)
 endif()
+if(LLVM_VERSION_MAJOR GREATER 17)
+  FIND_AND_ADD_CLANG_LIB(clangAPINotes)
+endif()
 
 find_path(CLANG_INCLUDE_DIRS clang/Basic/Version.h HINTS ${LLVM_INCLUDE_DIRS})
 

release/share/terra/README.md

@@ -150,6 +150,7 @@ The current recommended version of LLVM is **13**. The following versions are al
 | 15 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: | :heavy_check_mark: | |
 | 16 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: | :heavy_check_mark: | |
 | 17 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: | :heavy_check_mark: | |
+| 18 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: | :heavy_check_mark: | |
 
 \* Please note that AMD GPU support is currently experimental.
 

src/llvmheaders.h

@@ -19,7 +19,11 @@
 
 #include "llvm/IR/LegacyPassManager.h"
 
+#if LLVM_VERSION < 170
 #include "llvm/Support/Host.h"
+#else
+#include "llvm/TargetParser/Host.h"
+#endif
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Transforms/Scalar.h"
@@ -32,7 +36,9 @@
 #include "llvm/Support/Program.h"
 #include "llvm/Transforms/Utils/Cloning.h"
 #include "llvm/Transforms/IPO.h"
+#if LLVM_VERSION < 180
 #include "llvm/Transforms/Vectorize.h"
+#endif
 #if LLVM_VERSION < 170
 #include "llvm/Transforms/IPO/PassManagerBuilder.h"
 #else
@@ -62,11 +68,13 @@
 #include "llvmheaders_160.h"
 #elif LLVM_VERSION < 180
 #include "llvmheaders_170.h"
+#elif LLVM_VERSION < 190
+#include "llvmheaders_180.h"
 #else
 #error "unsupported LLVM version"
 // for OSX code completion
-#define LLVM_VERSION 170
-#include "llvmheaders_170.h"
+#define LLVM_VERSION 180
+#include "llvmheaders_180.h"
 #endif
 
 #define UNIQUEIFY(T, x) (std::unique_ptr<T>(x))

src/llvmheaders_180.h

@@ -0,0 +1,34 @@
+#include "llvm/IR/CallingConv.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/InlineAsm.h"
+#include "llvm/Analysis/CallGraphSCCPass.h"
+#include "llvm/Analysis/CallGraph.h"
+#include "llvm/IR/DIBuilder.h"
+#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/Mangler.h"
+//#include "llvm/ExecutionEngine/ObjectImage.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/Linker/Linker.h"
+#include "llvm/IR/CFG.h"
+#include "llvm/IR/InstVisitor.h"
+#include "llvm/CodeGen/TargetSubtargetInfo.h"
+
+#include "llvm/Support/VirtualFileSystem.h"
+#include "clang/Rewrite/Core/Rewriter.h"
+#include "clang/Rewrite/Frontend/Rewriters.h"
+#include "llvm/IR/DiagnosticPrinter.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
+#include "llvm/Object/SymbolSize.h"
+
+#include "llvm/Bitcode/BitcodeReader.h"
+#include "llvm/Support/Error.h"
+
+#define LLVM_PATH_TYPE std::string
+#define RAW_FD_OSTREAM_NONE sys::fs::OF_None
+#define RAW_FD_OSTREAM_BINARY sys::fs::OF_None

src/tcompiler.cpp

@@ -304,7 +304,12 @@ int terra_inittarget(lua_State *L) {
             // GV tables
             CodeModel::Small,
 #endif
-            CodeGenOpt::Aggressive);
+#if LLVM_VERSION < 180
+            CodeGenOpt::Aggressive
+#else
+            CodeGenOptLevel::Aggressive
+#endif
+    );
     TT->external = new Module("external", *TT->ctx);
     TT->external->setTargetTriple(TT->Triple);
     lua_pushlightuserdata(L, TT);
@@ -404,7 +409,13 @@ static void InitializeJIT(TerraCompilationUnit *CU) {
             .setMAttrs(mattrs)
             .setEngineKind(EngineKind::JIT)
             .setTargetOptions(CU->TT->tm->Options)
-            .setOptLevel(CodeGenOpt::Aggressive)
+            .setOptLevel(
+#if LLVM_VERSION < 180
+                    CodeGenOpt::Aggressive
+#else
+                    CodeGenOptLevel::Aggressive
+#endif
+                    )
             .setMCJITMemoryManager(std::make_unique<TerraSectionMemoryManager>(CU))
 #if LLVM_VERSION < 120
             .setUseOrcMCJITReplacement(true)
@@ -545,7 +556,11 @@ class Types {
                     CreatePrimitiveType(typ, t);
                 } break;
                 case T_niltype: {
+#if LLVM_VERSION < 170
                     t->type = Type::getInt8PtrTy(*CU->TT->ctx);
+#else
+                    t->type = PointerType::get(*CU->TT->ctx, 0);
+#endif
                 } break;
                 case T_opaque: {
                     t->type = Type::getInt8Ty(*CU->TT->ctx);
@@ -586,7 +601,13 @@ class Types {
             } break;
         }
     }
-    Type *FunctionPointerType() { return Type::getInt8PtrTy(*CU->TT->ctx); }
+    Type *FunctionPointerType() {
+#if LLVM_VERSION < 170
+        return Type::getInt8PtrTy(*CU->TT->ctx);
+#else
+        return PointerType::get(*CU->TT->ctx, 0);
+#endif
+    }
     bool LookupTypeCache(Obj *typ, TType **t) {
         *t = (TType *)CU->symbols->getud(typ);  // try to look up the cached type
         if (*t == NULL) {
@@ -1673,7 +1694,9 @@ static CallingConv::ID ParseCallingConv(const char *cc) {
         init = true;
         ccmap["fastcc"] = CallingConv::Fast;
         ccmap["coldcc"] = CallingConv::Cold;
+#if LLVM_VERSION < 180
         ccmap["webkit_jscc"] = CallingConv::WebKit_JS;
+#endif
         ccmap["anyregcc"] = CallingConv::AnyReg;
         ccmap["preserve_mostcc"] = CallingConv::PreserveMost;
         ccmap["preserve_allcc"] = CallingConv::PreserveAll;
@@ -2005,6 +2028,9 @@ struct FunctionEmitter {
                 cast<ReturnInst>(fstate->func->getEntryBlock().getTerminator());
         Constant *r = dyn_cast<Constant>(term->getReturnValue());
         assert(r || !"constant expression was not constant");
+#if LLVM_VERSION >= 170
+        CU->fam.clear(*fstate->func, fstate->func->getName());
+#endif
         fstate->func->eraseFromParent();
         return r;
     }

src/tcuda.cpp

@@ -151,7 +151,13 @@ void moduleToPTX(terra_State *T, llvm::Module *M, int major, int minor, std::str
     PMB.Inliner = llvm::createFunctionInliningPass(PMB.OptLevel, 0, false);
     PMB.LoopVectorize = false;
 #endif
-    auto FileType = llvm::CGFT_AssemblyFile;
+    auto FileType =
+#if LLVM_VERSION < 180
+            llvm::CGFT_AssemblyFile
+#else
+            llvm::CodeGenFileType::AssemblyFile
+#endif
+            ;
 
     llvm::legacy::PassManager PM;
 #if LLVM_VERSION < 160

src/tllvmutil.cpp

@@ -330,7 +330,19 @@ bool llvmutil_emitobjfile(Module *Mod, TargetMachine *TM, bool outputobjectfile,
     Mod->setDataLayout(TM->createDataLayout());
 #endif
 
-    CodeGenFileType ft = outputobjectfile ? CGFT_ObjectFile : CGFT_AssemblyFile;
+    CodeGenFileType ft = outputobjectfile ?
+#if LLVM_VERSION < 180
+                                          CGFT_ObjectFile
+#else
+                                          CodeGenFileType::ObjectFile
+#endif
+                                          :
+#if LLVM_VERSION < 180
+                                          CGFT_AssemblyFile
+#else
+                                          CodeGenFileType::AssemblyFile
+#endif
+            ;
 
     emitobjfile_t &destf = dest;
 

tests/constantinits.t

@@ -1,8 +1,3 @@
-if terralib.llvm_version >= 170 and require("ffi").os == "Linux" then
-  print("Skipping broken test on Linux, see #644")
-  return -- FIXME: https://github.com/terralang/terra/issues/644
-end
-
 function failit(match,fn)
 	local success,msg = xpcall(fn,debug.traceback)
 	--print(msg)

travis.sh

@@ -33,7 +33,13 @@ if [[ $(uname) = Linux ]]; then
   exit 1
 
 elif [[ $(uname) = Darwin ]]; then
-  if [[ $LLVM_VERSION = 17 ]]; then
+  if [[ $LLVM_VERSION = 18 ]]; then
+    curl -L -O https://github.com/terralang/llvm-build/releases/download/llvm-18.1.7/clang+llvm-18.1.7-x86_64-apple-darwin.tar.xz
+    tar xf clang+llvm-18.1.7-x86_64-apple-darwin.tar.xz
+    ln -s clang+llvm-18.1.7-x86_64-apple-darwin/bin/llvm-config llvm-config-17
+    ln -s clang+llvm-18.1.7-x86_64-apple-darwin/bin/clang clang-17
+    export CMAKE_PREFIX_PATH=$PWD/clang+llvm-18.1.7-x86_64-apple-darwin
+  elif [[ $LLVM_VERSION = 17 ]]; then
     curl -L -O https://github.com/terralang/llvm-build/releases/download/llvm-17.0.5/clang+llvm-17.0.5-x86_64-apple-darwin.tar.xz
     tar xf clang+llvm-17.0.5-x86_64-apple-darwin.tar.xz
     ln -s clang+llvm-17.0.5-x86_64-apple-darwin/bin/llvm-config llvm-config-17