blob: 1deb9dd52fbcf1cf7050986f879379f5298ffa50 [file] [log] [blame]
; RUN: llc -mtriple=thumbv7k-apple-watchos2.0 -arm-atomic-cfg-tidy=0 -o - %s | FileCheck %s
@tls_var = thread_local global i32 0
; r9 and r12 can be live across the asm, but those get clobbered by the TLS
; access (in a different BB to order it).
define i32 @test_regs_preserved(ptr %ptr1, ptr %ptr2, i1 %tst1) {
; CHECK-LABEL: test_regs_preserved:
; CHECK: str {{.*}}, [sp
; CHECK: mov {{.*}}, r12
call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r10},~{r11},~{r13},~{lr}"()
br i1 %tst1, label %get_tls, label %done
%val = load i32, ptr @tls_var
br label %done
%res = phi i32 [%val, %get_tls], [0, %entry]
store i32 42, ptr %ptr1
store i32 42, ptr %ptr2
ret i32 %res