1 ; RUN: llc -mtriple=thumbv7k-apple-watchos2.0 -arm-atomic-cfg-tidy=0 -o - %s | FileCheck %s
3 @tls_var = thread_local global i32 0
5 ; r9 and r12 can be live across the asm, but those get clobbered by the TLS
6 ; access (in a different BB to order it).
7 define i32 @test_regs_preserved(ptr %ptr1, ptr %ptr2, i1 %tst1) {
8 ; CHECK-LABEL: test_regs_preserved:
9 ; CHECK: str {{.*}}, [sp
10 ; CHECK: mov {{.*}}, r12
12 call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r10},~{r11},~{r13},~{lr}"()
13 br i1 %tst1, label %get_tls, label %done
16 %val = load i32, ptr @tls_var
20 %res = phi i32 [%val, %get_tls], [0, %entry]
21 store i32 42, ptr %ptr1
22 store i32 42, ptr %ptr2