mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
25 lines
754 B
LLVM
25 lines
754 B
LLVM
; 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(i32* %ptr1, i32* %ptr2, i1 %tst1) {
|
|
; CHECK-LABEL: test_regs_preserved:
|
|
; CHECK: str {{.*}}, [sp
|
|
; CHECK: mov {{.*}}, r12
|
|
entry:
|
|
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
|
|
|
|
get_tls:
|
|
%val = load i32, i32* @tls_var
|
|
br label %done
|
|
|
|
done:
|
|
%res = phi i32 [%val, %get_tls], [0, %entry]
|
|
store i32 42, i32* %ptr1
|
|
store i32 42, i32* %ptr2
|
|
ret i32 %res
|
|
}
|