1; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-n32:64"
4target triple = "powerpc64le-unknown-linux-gnu"
5
6; Test back-to-back stores of TLS variables to ensure call sequences no
7; longer overlap.
8
9@__once_callable = external thread_local global i8**
10@__once_call = external thread_local global void ()*
11
12define i64 @call_once(i64 %flag, i8* %ptr) {
13entry:
14  %var = alloca i8*, align 8
15  store i8* %ptr, i8** %var, align 8
16  store i8** %var, i8*** @__once_callable, align 8
17  store void ()* @__once_call_impl, void ()** @__once_call, align 8
18  ret i64 %flag
19}
20
21; CHECK-LABEL: call_once:
22; CHECK: addis 3, 2, __once_callable@got@tlsgd@ha
23; CHECK: addi 3, 3, __once_callable@got@tlsgd@l
24; CHECK: bl __tls_get_addr(__once_callable@tlsgd)
25; CHECK-NEXT: nop
26; CHECK: std {{[0-9]+}}, 0(3)
27; CHECK: addis 3, 2, __once_call@got@tlsgd@ha
28; CHECK: addi 3, 3, __once_call@got@tlsgd@l
29; CHECK: bl __tls_get_addr(__once_call@tlsgd)
30; CHECK-NEXT: nop
31; CHECK: std {{[0-9]+}}, 0(3)
32
33declare void @__once_call_impl()
34