| ; Test that LTO objects build with TLS and threading support can be linked into |
| ; a single threaded binary. Specifically the references to `__tls_base` that |
| ; can be generated at LTO-time need to trigger the creation of the internal/fake |
| ; `__tls_base` symbol in the linker. |
| |
| ; RUN: llvm-as %s -o %t1.o |
| ; RUN: wasm-ld --export=tls_int --export=get_tls %t1.o -o %t |
| ; RUN: obj2yaml %t | FileCheck %s |
| |
| target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-f128:64-n32:64-S128-ni:1:10:20" |
| target triple = "wasm32-unknown-emscripten" |
| |
| @tls_int = dso_local thread_local global i32 99 |
| |
| define i32 @get_tls() #0 { |
| %val = load i32, i32* @tls_int |
| ret i32 %val |
| } |
| |
| define void @_start() #0 { |
| ret void |
| } |
| |
| attributes #0 = { noinline nounwind optnone "target-features"="+atomics,+bulk-memory,+mutable-globals,+sign-ext" } |
| |
| ; CHECK: - Type: GLOBAL |
| ; CHECK-NEXT: Globals: |
| ; CHECK-NEXT: - Index: 0 |
| ; CHECK-NEXT: Type: I32 |
| ; CHECK-NEXT: Mutable: true |
| ; CHECK-NEXT: InitExpr: |
| ; CHECK-NEXT: Opcode: I32_CONST |
| ; CHECK-NEXT: Value: 66576 |
| ; CHECK-NEXT: - Index: 1 |
| ; CHECK-NEXT: Type: I32 |
| ; CHECK-NEXT: Mutable: false |
| ; CHECK-NEXT: InitExpr: |
| ; CHECK-NEXT: Opcode: I32_CONST |
| ; CHECK-NEXT: Value: 1024 |
| |
| ; CHECK: GlobalNames: |
| ; CHECK-NEXT: - Index: 0 |
| ; CHECK-NEXT: Name: __stack_pointer |
| ; CHECK-NEXT: - Index: 1 |
| ; CHECK-NEXT: Name: __tls_base |