Enable OpaquePointers on LLVM 15

Author: vchuravy

src/codegen.cpp

@@ -9362,17 +9362,6 @@ extern "C" void jl_init_llvm(void)
     if (clopt && clopt->getNumOccurrences() == 0)
         cl::ProvidePositionalOption(clopt, "4", 1);
 
-#if JL_LLVM_VERSION >= 150000
-    clopt = llvmopts.lookup("opaque-pointers");
-    if (clopt && clopt->getNumOccurrences() == 0) {
-#ifdef JL_LLVM_OPAQUE_POINTERS
-        cl::ProvidePositionalOption(clopt, "true", 1);
-#else
-        cl::ProvidePositionalOption(clopt, "false", 1);
-#endif
-    }
-#endif
-
     jl_ExecutionEngine = new JuliaOJIT();
 
     bool jl_using_gdb_jitevents = false;

src/jitlayers.cpp

@@ -1629,6 +1629,10 @@ JuliaOJIT::JuliaOJIT()
     DLSymOpt(std::make_unique<DLSymOptimizer>(false)),
     ContextPool([](){
         auto ctx = std::make_unique<LLVMContext>();
+#ifndef JL_LLVM_OPAQUE_POINTERS
+        if (ctx.supportsTypedPointers())
+            ctx.setOpaquePointers(false);
+#endif
         return orc::ThreadSafeContext(std::move(ctx));
     }),
 #ifdef JL_USE_JITLINK

src/llvm-version.h

@@ -14,7 +14,7 @@
     #error Only LLVM versions >= 14.0.0 are supported by Julia
 #endif
 
-#if JL_LLVM_VERSION >= 160000
+#if JL_LLVM_VERSION >= 150000
 #define JL_LLVM_OPAQUE_POINTERS 1
 #endif