2 files changed, 16 insertions, 0 deletions
diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
index 38fddbdba54..0f4973ebf71 100644
--- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
@@ -985,7 +985,9 @@ LLVMRustOptimizeWithNewPassManager(
     if (SanitizerOptions->SanitizeAddress) {
       OptimizerLastEPCallbacks.push_back(
         [SanitizerOptions](ModulePassManager &MPM, OptimizationLevel Level) {
+#if LLVM_VERSION_LT(15, 0)
           MPM.addPass(RequireAnalysisPass<ASanGlobalsMetadataAnalysis, Module>());
+#endif
 #if LLVM_VERSION_GE(14, 0)
           AddressSanitizerOptions opts = AddressSanitizerOptions{
             /*CompileKernel=*/false,
diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index a52d5340242..7ac3157e7a1 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -411,8 +411,14 @@ LLVMRustInlineAsm(LLVMTypeRef Ty, char *AsmString, size_t AsmStringLen,
 
 extern "C" bool LLVMRustInlineAsmVerify(LLVMTypeRef Ty, char *Constraints,
                                         size_t ConstraintsLen) {
+#if LLVM_VERSION_LT(15, 0)
   return InlineAsm::Verify(unwrap<FunctionType>(Ty),
                            StringRef(Constraints, ConstraintsLen));
+#else
+  // llvm::Error converts to true if it is an error.
+  return !llvm::errorToBool(InlineAsm::verify(
+      unwrap<FunctionType>(Ty), StringRef(Constraints, ConstraintsLen)));
+#endif
 }
 
 extern "C" void LLVMRustAppendModuleInlineAsm(LLVMModuleRef M, const char *Asm,
@@ -1865,3 +1871,11 @@ extern "C" void LLVMRustGetMangledName(LLVMValueRef V, RustStringRef Str) {
   GlobalValue *GV = unwrap<GlobalValue>(V);
   Mangler().getNameWithPrefix(OS, GV, true);
 }
+
+// LLVMGetAggregateElement was added in LLVM 15. For earlier LLVM versions just
+// use its implementation.
+#if LLVM_VERSION_LT(15, 0)
+extern "C" LLVMValueRef LLVMGetAggregateElement(LLVMValueRef C, unsigned Idx) {
+    return wrap(unwrap<Constant>(C)->getAggregateElement(Idx));
+}
+#endif