Migrate to LLVM15

.github/workflows/anghabench-after-build.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm: [ '14' ]
+        llvm: [ '15' ]
         run_size: [ '1k' ]
 
     name: Run AnghaBench CI (AMD64)

.github/workflows/anghabench-cron-jobs.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm: [ '14' ]
+        llvm: [ '15' ]
         run_size: [ '1k' ]
 
     name: Run AnghaBench CI (AMD64)

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
         image:
           - { name: 'ubuntu', tag: '20.04' }
         llvm: [
-          '14'
+          '15'
           ]
 
     name: Rellic CI
@@ -48,8 +48,8 @@ jobs:
         run: |
           # TODO some of these should probably live in the Docker build image
           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-          echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-14 main" >> /etc/apt/sources.list
-          echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-14 main" >> /etc/apt/sources.list
+          echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-${{ matrix.llvm }} main" >> /etc/apt/sources.list
+          echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-${{ matrix.llvm }} main" >> /etc/apt/sources.list
           apt-get update
           apt-get install -y ninja-build pixz xz-utils make rpm python3.8
           update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 100
@@ -129,7 +129,7 @@ jobs:
           'macos-11'
           ]
         llvm: [
-          '14'
+          '15'
           ]
 
     runs-on: ${{ matrix.os }}
@@ -246,7 +246,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        llvm: ["14"]
+        llvm: ["15"]
         ubuntu: ["20.04"]
     steps:
     - uses: actions/checkout@v2

.github/workflows/diff_tests.yml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         image:
           - { name: 'ubuntu', tag: '20.04', codename: 'focal' }
-        llvm: [ '14' ]
+        llvm: [ '15' ]
         common_base: [ 'https://github.com/lifting-bits/cxx-common/releases/latest/download' ]
 
     env:
@@ -62,21 +62,21 @@ jobs:
       - name: Build old rellic
         shell: bash
         run: |
-          cmake -G Ninja -S old -B rellic-build-old -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/vcpkg_${{ matrix.image.name }}-${{ matrix.image.tag }}_llvm-${{ matrix.llvm }}_amd64/scripts/buildsystems/vcpkg.cmake
+          cmake -G Ninja -S old -B rellic-build-old -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/vcpkg_${{ matrix.image.name }}-${{ matrix.image.tag }}_llvm-${{ matrix.llvm }}_amd64/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET="x64-linux-rel"
           cmake --build rellic-build-old
 
       - name: Build new rellic
         shell: bash
         run: |
-          cmake -G Ninja -S . -B rellic-build -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/vcpkg_${{ matrix.image.name }}-${{ matrix.image.tag }}_llvm-${{ matrix.llvm }}_amd64/scripts/buildsystems/vcpkg.cmake
+          cmake -G Ninja -S . -B rellic-build -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/vcpkg_${{ matrix.image.name }}-${{ matrix.image.tag }}_llvm-${{ matrix.llvm }}_amd64/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET="x64-linux-rel"
           cmake --build rellic-build
 
       - name: Print job summary
         shell: bash
         run: |
           echo "# Test diffs" >> $GITHUB_STEP_SUMMARY
           cd $GITHUB_WORKSPACE/tests/tools/decomp
-          env CLANG=clang-14 \
+          env CLANG=clang-${{ matrix.llvm }} \
               OLD_RELLIC=$GITHUB_WORKSPACE/rellic-build-old/tools/rellic-decomp \
               NEW_RELLIC=$GITHUB_WORKSPACE/rellic-build/tools/rellic-decomp \
               make -s -j1 -f diff_outputs.mk >> $GITHUB_STEP_SUMMARY
@@ -86,7 +86,7 @@ jobs:
         id: md
         run: |
           cd $GITHUB_WORKSPACE/tests/tools/decomp
-          env CLANG=clang-14 \
+          env CLANG=clang-${{ matrix.llvm }} \
               OLD_RELLIC=$GITHUB_WORKSPACE/rellic-build-old/tools/rellic-decomp \
               NEW_RELLIC=$GITHUB_WORKSPACE/rellic-build/tools/rellic-decomp \
               make -s -j1 -f diff_outputs.mk >> $GITHUB_WORKSPACE/test-diff.md

lib/AST/ASTBuilder.cpp

@@ -10,6 +10,7 @@
 
 #include <clang/AST/ASTContext.h>
 #include <clang/AST/Decl.h>
+#include <clang/Basic/LangOptions.h>
 #include <clang/Basic/SourceLocation.h>
 #include <clang/Basic/TargetInfo.h>
 #include <clang/Sema/Lookup.h>
@@ -33,11 +34,13 @@ enum CExprPrecedence : unsigned {
 namespace {
 
 static unsigned GetOperatorPrecedence(clang::UnaryOperatorKind opc) {
-  return static_cast<unsigned>(CExprPrecedence::UnaryOp) + static_cast<unsigned>(opc);
+  return static_cast<unsigned>(CExprPrecedence::UnaryOp) +
+         static_cast<unsigned>(opc);
 }
 
 static unsigned GetOperatorPrecedence(clang::BinaryOperatorKind opc) {
-  return static_cast<unsigned>(CExprPrecedence::BinaryOp) + static_cast<unsigned>(opc);
+  return static_cast<unsigned>(CExprPrecedence::BinaryOp) +
+         static_cast<unsigned>(opc);
 }
 
 static unsigned GetOperatorPrecedence(clang::Expr *op) {
@@ -186,7 +189,7 @@ clang::CharacterLiteral *ASTBuilder::CreateCharLit(unsigned val) {
 clang::StringLiteral *ASTBuilder::CreateStrLit(std::string val) {
   auto type{ctx.getStringLiteralArrayType(ctx.CharTy, val.size())};
   return clang::StringLiteral::Create(
-      ctx, val, clang::StringLiteral::StringKind::Ascii,
+      ctx, val, clang::StringLiteral::StringKind::Ordinary,
       /*Pascal=*/false, type, clang::SourceLocation());
 }
 
@@ -459,7 +462,8 @@ clang::CompoundStmt *ASTBuilder::CreateCompoundStmt(
   // sema.ActOnFinishOfCompoundStmt();
   // CHECK(sr.isUsable());
   // return sr.getAs<clang::CompoundStmt>();
-  return clang::CompoundStmt::Create(ctx, stmts, clang::SourceLocation(),
+  return clang::CompoundStmt::Create(ctx, stmts, clang::FPOptionsOverride{},
+                                     clang::SourceLocation(),
                                      clang::SourceLocation());
 }
 

lib/AST/DebugInfoCollector.cpp

@@ -11,6 +11,7 @@
 
 #include <gflags/gflags.h>
 #include <glog/logging.h>
+#include <llvm/BinaryFormat/Dwarf.h>
 #include <llvm/IR/DebugInfoMetadata.h>
 #include <llvm/IR/DerivedTypes.h>
 #include <llvm/Support/Casting.h>

lib/AST/StructGenerator.cpp

@@ -15,6 +15,7 @@
 #include <clang/Basic/TargetInfo.h>
 #include <gflags/gflags.h>
 #include <glog/logging.h>
+#include <llvm/BinaryFormat/Dwarf.h>
 
 #include <string>
 #include <unordered_set>

lib/BC/Util.cpp

@@ -14,6 +14,7 @@
 #include <llvm/IR/BasicBlock.h>
 #include <llvm/IR/Function.h>
 #include <llvm/IR/IRBuilder.h>
+#include <llvm/IR/InstIterator.h>
 #include <llvm/IR/Instructions.h>
 #include <llvm/IR/IntrinsicInst.h>
 #include <llvm/IR/LLVMContext.h>

scripts/build.sh

@@ -18,8 +18,8 @@ DOWNLOAD_DIR="$( cd "$( dirname "${SRC_DIR}" )" && pwd )/lifting-bits-downloads"
 CURR_DIR=$( pwd )
 BUILD_DIR="${CURR_DIR}/rellic-build"
 INSTALL_DIR=/usr/local
-LLVM_VERSION=llvm-14
-CXX_COMMON_VERSION=v0.2.16
+LLVM_VERSION=llvm-15
+CXX_COMMON_VERSION=v0.2.19
 OS_VERSION=unknown
 ARCH_VERSION=unknown
 BUILD_FLAGS=
@@ -334,6 +334,10 @@ function GetLLVMVersion
       LLVM_VERSION=llvm-14
       return 0
     ;;
+    15)
+      LLVM_VERSION=llvm-15
+      return 0
+    ;;
     *)
       # unknown option
       echo "[x] Unknown or unsupported LLVM version ${1}. You may be able to manually build it with cxx-common."

tools/decomp/Decomp.cpp

@@ -111,8 +111,6 @@ int main(int argc, char* argv[]) {
   }
 
   std::unique_ptr<llvm::LLVMContext> llvm_ctx(new llvm::LLVMContext);
-  llvm_ctx->enableOpaquePointers();
-
   auto module{std::unique_ptr<llvm::Module>(
       rellic::LoadModuleFromFile(llvm_ctx.get(), FLAGS_input))};
 

tools/repl/Repl.cpp

@@ -493,7 +493,6 @@ int main(int argc, char* argv[]) {
   SetVersion();
   google::ParseCommandLineFlags(&argc, &argv, true);
 
-  llvm_ctx.enableOpaquePointers();
   auto& pr{*llvm::PassRegistry::getPassRegistry()};
   initializeCore(pr);
   initializeAnalysis(pr);

tools/xref/DeclPrinter.cpp

@@ -651,6 +651,10 @@ void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) {
       if (FT->isVariadic()) {
         if (D->getNumParams()) POut << ", ";
         POut << "...";
+      } else if (!D->getNumParams() && !Context.getLangOpts().CPlusPlus) {
+        // The function has a prototype, so it needs to retain the prototype
+        // in C.
+        POut << "<span class=\"clang keyword\">void</span>";
       }
     } else if (D->doesThisDeclarationHaveABody() && !D->hasPrototype()) {
       for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
@@ -845,8 +849,11 @@ void DeclPrinter::VisitVarDecl(VarDecl *D) {
   Expr *Init = D->getInit();
   if (!Policy.SuppressInitializers && Init) {
     bool ImplicitInit = false;
-    if (CXXConstructExpr *Construct =
-            dyn_cast<CXXConstructExpr>(Init->IgnoreImplicit())) {
+    if (D->isCXXForRangeDecl()) {
+      // FIXME: We should print the range expression instead.
+      ImplicitInit = true;
+    } else if (CXXConstructExpr *Construct =
+                   dyn_cast<CXXConstructExpr>(Init->IgnoreImplicit())) {
       if (D->getInitStyle() == VarDecl::CallInit &&
           !Construct->isListInitialization()) {
         ImplicitInit = Construct->getNumArgs() == 0 ||
@@ -945,6 +952,12 @@ void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) {
     }
   }
 
+  if (D->hasDefinition()) {
+    if (D->hasAttr<FinalAttr>()) {
+      Out << " final";
+    }
+  }
+
   if (D->isCompleteDefinition()) {
     // Print the base classes
     if (D->getNumBases()) {