From c58633ef17beb908fdfed46d7ca13e08d0d93648 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 27 Jan 2020 20:56:24 -0500
Subject: [PATCH] fix assertion with var debug loc not initialized

---
 src/all_types.hpp | 1 +
 src/codegen.cpp   | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/all_types.hpp b/src/all_types.hpp
index 993a693d88..e9515a69cc 100644
--- a/src/all_types.hpp
+++ b/src/all_types.hpp
@@ -2286,6 +2286,7 @@ struct ZigVar {
     bool is_thread_local;
     bool is_comptime_memoized;
     bool is_comptime_memoized_value;
+    bool did_the_decl_codegen;
 };
 
 struct ErrorTableEntry {
diff --git a/src/codegen.cpp b/src/codegen.cpp
index ef43ebd575..2eb5e45083 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -3505,6 +3505,7 @@ static void render_decl_var(CodeGen *g, ZigVar *var) {
 
 static LLVMValueRef ir_render_decl_var(CodeGen *g, IrExecutableGen *executable, IrInstGenDeclVar *instruction) {
     instruction->var->ptr_instruction = instruction->var_ptr;
+    instruction->var->did_the_decl_codegen = true;
     render_decl_var(g, instruction->var);
     return nullptr;
 }
@@ -3973,7 +3974,7 @@ static void render_async_var_decls(CodeGen *g, Scope *scope) {
                 return;
             case ScopeIdVarDecl: {
                 ZigVar *var = reinterpret_cast<ScopeVarDecl *>(scope)->var;
-                if (var->ptr_instruction != nullptr) {
+                if (var->did_the_decl_codegen) {
                     render_decl_var(g, var);
                 }
                 // fallthrough