Fix compilation with LLVM 14 (#3822)

driver/cache.cpp

@@ -322,7 +322,7 @@ void outputIR2ObjRelevantCmdlineArgs(llvm::raw_ostream &hash_os) {
 #if LDC_LLVM_VER >= 800
   const auto framePointerUsage = opts::framePointerUsage();
   if (framePointerUsage.hasValue())
-    hash_os << framePointerUsage.getValue();
+    hash_os << static_cast<int>(framePointerUsage.getValue());
 #else
   hash_os << opts::disableFPElim();
 #endif

driver/cl_options-llvm.cpp

@@ -64,8 +64,14 @@ Optional<CodeModel::Model> getCodeModel() {
 #endif
 }
 
+#if LDC_LLVM_VER >= 1400
+using FPK = llvm::FramePointerKind;
+#elif LDC_LLVM_VER >= 800
+using FPK = llvm::FramePointer::FP;
+#endif
+
 #if LDC_LLVM_VER >= 800
-llvm::Optional<llvm::FramePointer::FP> framePointerUsage() {
+llvm::Optional<FPK> framePointerUsage() {
 #if LDC_LLVM_VER >= 1100
   // Defaults to `FP::None`; no way to check if set explicitly by user except
   // indirectly via setFunctionAttributes()...

driver/cl_options-llvm.h

@@ -24,7 +24,9 @@ namespace opts {
 std::string getArchStr();
 llvm::Optional<llvm::Reloc::Model> getRelocModel();
 llvm::Optional<llvm::CodeModel::Model> getCodeModel();
-#if LDC_LLVM_VER >= 800
+#if LDC_LLVM_VER >= 1400
+llvm::Optional<llvm::FramePointerKind> framePointerUsage();
+#elif LDC_LLVM_VER >= 800
 llvm::Optional<llvm::FramePointer::FP> framePointerUsage();
 #else
 llvm::cl::boolOrDefault disableFPElim();

driver/cl_options_sanitizers.cpp

@@ -21,6 +21,9 @@
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/SpecialCaseList.h"
+#if LDC_LLVM_VER >= 1400
+#include "llvm/Support/VirtualFileSystem.h"
+#endif
 
 namespace {
 

driver/codegenerator.cpp

@@ -152,20 +152,16 @@ void emitLLVMUsedArray(IRState &irs) {
   llvmUsed->setSection("llvm.metadata");
 }
 
-void inlineAsmDiagnosticHandler(const llvm::SMDiagnostic &d, void *context,
-                                unsigned locCookie) {
-  if (d.getKind() == llvm::SourceMgr::DK_Error)
-    ++global.errors;
-
+bool inlineAsmDiagnostic(IRState* irs,const llvm::SMDiagnostic &d, unsigned locCookie)
+{
     if (!locCookie) {
       d.print(nullptr, llvm::errs());
-    return;
+      return true;
     }
 
     // replace the `<inline asm>` dummy filename by the LOC of the actual D
     // expression/statement (`myfile.d(123)`)
-  const Loc &loc =
-      static_cast<IRState *>(context)->getInlineAsmSrcLoc(locCookie);
+    const Loc &loc = irs->getInlineAsmSrcLoc(locCookie);
     const char *filename = loc.toChars(/*showColumns*/ false);
 
     // keep on using llvm::SMDiagnostic::print() for nice, colorful output
@@ -173,8 +169,34 @@ void inlineAsmDiagnosticHandler(const llvm::SMDiagnostic &d, void *context,
                           d.getColumnNo(), d.getKind(), d.getMessage(),
                           d.getLineContents(), d.getRanges(), d.getFixIts());
     d2.print(nullptr, llvm::errs());
+    return true;
 }
                                            
+#if LDC_LLVM_VER < 1300
+void inlineAsmDiagnosticHandler(const llvm::SMDiagnostic &d, void *context,
+                                unsigned locCookie) {
+  if (d.getKind() == llvm::SourceMgr::DK_Error)
+    ++global.errors;
+  inlineAsmDiagnostic(static_cast<IRState *>(context), d, locCookie);
+}
+#else
+struct InlineAsmDiagnosticHandler : public llvm::DiagnosticHandler {
+  IRState *irs;
+  InlineAsmDiagnosticHandler(IRState *irs) : irs(irs) {}
+
+    // return false to defer to LLVMContext::diagnose()
+  bool handleDiagnostics(const llvm::DiagnosticInfo &DI) override {
+    if (DI.getKind() != llvm::DK_SrcMgr)
+        return false;
+
+    const auto &DISM = llvm::cast<llvm::DiagnosticInfoSrcMgr>(DI);
+    if (DISM.getKind() == llvm::SourceMgr::DK_Error)
+      ++global.errors;
+    return inlineAsmDiagnostic(irs, DISM.getSMDiag(), DISM.getLocCookie());
+  }
+};
+#endif
+
 } // anonymous namespace
 
 namespace ldc {
@@ -265,7 +287,12 @@ void CodeGenerator::writeAndFreeLLModule(const char *filename) {
   llvm::Metadata *IdentNode[] = {llvm::MDString::get(ir_->context(), Version)};
   IdentMetadata->addOperand(llvm::MDNode::get(ir_->context(), IdentNode));
 
+#if LDC_LLVM_VER < 1300
   context_.setInlineAsmDiagnosticHandler(inlineAsmDiagnosticHandler, ir_);
+#else
+  context_.setDiagnosticHandler(
+          std::make_unique<InlineAsmDiagnosticHandler>(ir_));
+#endif
 
   std::unique_ptr<llvm::ToolOutputFile> diagnosticsOutputFile =
       createAndSetDiagnosticsOutputFile(*ir_, context_, filename);

driver/ldmd.cpp

@@ -715,7 +715,13 @@ void translateArgs(const llvm::SmallVectorImpl<const char *> &ldmdArgs,
       }
     } else {
       const auto ext = ls::path::extension(p);
-      if (ext.equals_lower(".exe")) {
+      if (
+#if LDC_LLVM_VER >= 1400
+        ext.equals_insensitive(".exe")
+#else
+        ext.equals_lower(".exe")
+#endif
+          ) {
         // should be for Windows targets only
         ldcArgs.push_back(concat("-of=", p));
         continue;

driver/linker-msvc.cpp

@@ -36,6 +36,10 @@ void addMscrtLibs(bool useInternalToolchain, std::vector<std::string> &args) {
   // We need the vcruntime lib for druntime's exception handling (ldc.eh_msvc).
   // Pick one of the 4 variants matching the selected main UCRT lib.
 
+#if LDC_LLVM_VER >= 1400
+#define contains_lower contains_insensitive
+#define endswith_lower endswith_insensitive
+#endif
   if (useInternalToolchain) {
     assert(mscrtlibName.contains_lower("vcruntime"));
     return;

gen/attributes.cpp

@@ -11,18 +11,33 @@
 #include "gen/irstate.h"
 
 AttrSet::AttrSet(const AttrSet &base, unsigned index, LLAttribute attribute)
+#if LDC_LLVM_VER >= 1400
+    : set(base.set.addAttributeAtIndex(gIR->context(), index, attribute)) {}
+#else
     : set(base.set.addAttribute(gIR->context(), index, attribute)) {}
+#endif
 
 AttrSet
 AttrSet::extractFunctionAndReturnAttributes(const llvm::Function *function) {
   auto old = function->getAttributes();
-  return {LLAttributeList::get(gIR->context(), old.getFnAttributes(),
-                               old.getRetAttributes(), {})};
+  return {LLAttributeList::get(gIR->context(),
+#if LDC_LLVM_VER >= 1400
+                               old.getFnAttrs(),
+                               old.getRetAttrs(),
+#else
+                               old.getFnAttributes(),
+                               old.getRetAttributes(),
+#endif
+                               {})};
 }
 
 AttrSet &AttrSet::add(unsigned index, const llvm::AttrBuilder &builder) {
   if (builder.hasAttributes()) {
+#if LDC_LLVM_VER >= 1400
+    set = set.addAttributesAtIndex(gIR->context(), index, builder);
+#else
     set = set.addAttributes(gIR->context(), index, builder);
+#endif
   }
   return *this;
 }

gen/coverage.cpp

@@ -43,6 +43,9 @@ void emitCoverageLinecountInc(const Loc &loc) {
   case opts::CoverageIncrement::atomic:
     // Do an atomic increment, so this works when multiple threads are executed.
     gIR->ir->CreateAtomicRMW(llvm::AtomicRMWInst::Add, ptr, DtoConstUint(1),
+#if LDC_LLVM_VER >= 1400
+                             LLAlign(4),
+#endif
                              llvm::AtomicOrdering::Monotonic);
     break;
   case opts::CoverageIncrement::nonatomic: {

gen/inlineir.cpp

@@ -37,8 +37,13 @@ struct TempDisableDiscardValueNames {
 /// Note: don't add function _parameter_ attributes
 void copyFnAttributes(llvm::Function *wannabe, llvm::Function *idol) {
   auto attrSet = idol->getAttributes();
+#if LDC_LLVM_VER >= 1400
+  auto fnAttrSet = attrSet.getFnAttrs();
+  wannabe->addFnAttrs(fnAttrSet);
+#else
   auto fnAttrSet = attrSet.getFnAttributes();
   wannabe->addAttributes(LLAttributeList::FunctionIndex, fnAttrSet);
+#endif
 }
 
 llvm::StringRef exprToString(StringExp *strexp) {

gen/tocall.cpp

@@ -508,8 +508,12 @@ bool DtoLowerMagicIntrinsic(IRState *p, FuncDeclaration *fndecl, CallExp *e,
       fatal();
     }
 
-    auto ret = p->ir->CreateAtomicCmpXchg(ptr, cmp, val, successOrdering,
-                                           failureOrdering);
+    auto ret =
+      p->ir->CreateAtomicCmpXchg(ptr, cmp, val,
+#if LDC_LLVM_VER >= 1400
+                                 LLMaybeAlign(gDataLayout->getABITypeAlignment(val->getType())),
+#endif
+                                 successOrdering, failureOrdering);
     ret->setWeak(isWeak);
 
     // we return a struct; allocate on stack and store to both fields manually
@@ -554,6 +558,9 @@ bool DtoLowerMagicIntrinsic(IRState *p, FuncDeclaration *fndecl, CallExp *e,
     LLValue *val = DtoRVal(exp2);
     LLValue *ret =
         p->ir->CreateAtomicRMW(llvm::AtomicRMWInst::BinOp(op), ptr, val,
+#if LDC_LLVM_VER >= 1400
+                               LLMaybeAlign(gDataLayout->getABITypeAlignment(val->getType())),
+#endif
                                llvm::AtomicOrdering(atomicOrdering));
     result = new DImValue(exp2->type, ret);
     return true;
@@ -1028,9 +1035,15 @@ DValue *DtoCallFunction(const Loc &loc, Type *resulttype, DValue *fnval,
     call->setCallingConv(callconv);
   }
   // merge in function attributes set in callOrInvoke
+#if LDC_LLVM_VER >= 1400
+  attrlist = attrlist.addFnAttributes(
+    gIR->context(),
+    llvm::AttrBuilder(call->getAttributes(), LLAttributeList::FunctionIndex));
+#else
   attrlist = attrlist.addAttributes(
     gIR->context(), LLAttributeList::FunctionIndex,
     llvm::AttrBuilder(call->getAttributes(), LLAttributeList::FunctionIndex));
+#endif
   call->setAttributes(attrlist);
 
   // Special case for struct constructor calls: For temporaries, using the

gen/uda.cpp

@@ -197,7 +197,11 @@ void applyAttrAllocSize(StructLiteralExp *sle, IrFunction *irFunc) {
 
   llvm::Function *func = irFunc->getLLVMFunc();
 
+#if LDC_LLVM_VER >= 1400
+  func->addFnAttrs(builder);
+#else
   func->addAttributes(LLAttributeList::FunctionIndex, builder);
+#endif
 }
 
 // @llvmAttr("key", "value")
@@ -414,7 +418,11 @@ void applyFuncDeclUDAs(FuncDeclaration *decl, IrFunction *irFunc) {
       } else if (ident == Id::udaLLVMAttr) {
         llvm::AttrBuilder attrs;
         applyAttrLLVMAttr(sle, attrs);
+#if LDC_LLVM_VER >= 1400
+        func->addFnAttrs(attrs);
+#else
         func->addAttributes(LLAttributeList::FunctionIndex, attrs);
+#endif
       } else if (ident == Id::udaLLVMFastMathFlag) {
         applyAttrLLVMFastMathFlag(sle, irFunc);
       } else if (ident == Id::udaOptStrategy) {

ir/irfunction.cpp

@@ -29,14 +29,24 @@ IrFunction::IrFunction(FuncDeclaration *fd)
 }
 
 void IrFunction::setNeverInline() {
-  assert(!func->getAttributes().hasAttribute(LLAttributeList::FunctionIndex,
+  assert(!func->getAttributes()
+#if LDC_LLVM_VER < 1400
+                .hasAttribute(LLAttributeList::FunctionIndex,
+#else
+                .hasFnAttr(
+#endif
                            llvm::Attribute::AlwaysInline) &&
             "function can't be never- and always-inline at the same time");
   func->addFnAttr(llvm::Attribute::NoInline);
 }
 
 void IrFunction::setAlwaysInline() {
-  assert(!func->getAttributes().hasAttribute(LLAttributeList::FunctionIndex,
+  assert(!func->getAttributes()
+#if LDC_LLVM_VER < 1400
+                .hasAttribute(LLAttributeList::FunctionIndex,
+#else
+                .hasFnAttr(
+#endif
                            llvm::Attribute::NoInline) &&
             "function can't be never- and always-inline at the same time");
   func->addFnAttr(llvm::Attribute::AlwaysInline);