Commit aa65b94671

Andrew Kelley <andrew@ziglang.org>
2019-01-08 16:57:39
fix debug info for function pointers
found when testing against LLVM 8 see https://bugs.llvm.org/show_bug.cgi?id=40198
1 parent 013c7b2
src/all_types.hpp
@@ -1166,6 +1166,7 @@ struct ZigTypeFn {
     FnGenParamInfo *gen_param_info;
 
     LLVMTypeRef raw_type_ref;
+    ZigLLVMDIType *raw_di_type;
 
     ZigType *bound_fn_parent;
 };
src/analyze.cpp
@@ -1220,7 +1220,10 @@ ZigType *get_fn_type(CodeGen *g, FnTypeId *fn_type_id) {
         fn_type->data.fn.raw_type_ref = LLVMFunctionType(gen_return_type->type_ref,
                 gen_param_types.items, (unsigned int)gen_param_types.length, fn_type_id->is_var_args);
         fn_type->type_ref = LLVMPointerType(fn_type->data.fn.raw_type_ref, 0);
-        fn_type->di_type = ZigLLVMCreateSubroutineType(g->dbuilder, param_di_types.items, (int)param_di_types.length, 0);
+        fn_type->data.fn.raw_di_type = ZigLLVMCreateSubroutineType(g->dbuilder, param_di_types.items, (int)param_di_types.length, 0);
+        fn_type->di_type = ZigLLVMCreateDebugPointerType(g->dbuilder, fn_type->data.fn.raw_di_type,
+                LLVMStoreSizeOfType(g->target_data_ref, fn_type->type_ref),
+                LLVMABIAlignmentOfType(g->target_data_ref, fn_type->type_ref), "");
     }
 
     g->fn_type_table.put(&fn_type->data.fn.fn_type_id, fn_type);
src/codegen.cpp
@@ -649,7 +649,7 @@ static ZigLLVMDIScope *get_di_scope(CodeGen *g, Scope *scope) {
             ZigLLVMDISubprogram *subprogram = ZigLLVMCreateFunction(g->dbuilder,
                 fn_di_scope, buf_ptr(&fn_table_entry->symbol_name), "",
                 import->di_file, line_number,
-                fn_table_entry->type_entry->di_type, is_internal_linkage,
+                fn_table_entry->type_entry->data.fn.raw_di_type, is_internal_linkage,
                 is_definition, scope_line, flags, is_optimized, nullptr);
 
             scope->di_scope = ZigLLVMSubprogramToScope(subprogram);