From 59de23dfa010c5556f79fbb8b4c637c8d150fd88 Mon Sep 17 00:00:00 2001
From: LemonBoy <thatlemon@gmail.com>
Date: Sun, 15 Dec 2019 19:25:41 +0100
Subject: [PATCH] Don't assume TLS storage has a fixed address

Fixes #3433
---
 src/ir.cpp                    | 2 +-
 test/stage1/behavior/misc.zig | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/ir.cpp b/src/ir.cpp
index 8e1cef8e43..52f3126428 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -17395,7 +17395,7 @@ static IrInstruction *ir_get_var_ptr(IrAnalyze *ira, IrInstruction *instruction,
     result->value->type = get_pointer_to_type_extra(ira->codegen, var->var_type,
             var->src_is_const, is_volatile, PtrLenSingle, var->align_bytes, 0, 0, false);
 
-    if (linkage_makes_it_runtime)
+    if (linkage_makes_it_runtime || var->is_thread_local)
         goto no_mem_slot;
 
     if (value_is_comptime(var->const_value)) {
diff --git a/test/stage1/behavior/misc.zig b/test/stage1/behavior/misc.zig
index dd3ad29878..0b29189cde 100644
--- a/test/stage1/behavior/misc.zig
+++ b/test/stage1/behavior/misc.zig
@@ -773,3 +773,11 @@ test "result location is optional inside error union" {
     const x = maybe(true) catch unreachable;
     expect(x.? == 42);
 }
+
+threadlocal var buffer: [11]u8 = undefined;
+
+test "pointer to thread local array" {
+    const s = "Hello world";
+    std.mem.copy(u8, buffer[0..], s);
+    std.testing.expectEqualSlices(u8, buffer[0..], s);
+}