| ; RUN: llc < %s -mtriple=arm-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-ARM |
| ; RUN: llc < %s -mtriple=thumb-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-THUMB |
| |
| ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-ARMV7 |
| ; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-THUMBV7 |
| |
| define zeroext i1 @test_cmpxchg_res_i8(i8* %addr, i8 %desired, i8 zeroext %new) { |
| entry: |
| %0 = cmpxchg i8* %addr, i8 %desired, i8 %new monotonic monotonic |
| %1 = extractvalue { i8, i1 } %0, 1 |
| ret i1 %1 |
| } |
| |
| ; CHECK-ARM-LABEL: test_cmpxchg_res_i8 |
| ; CHECK-ARM: bl __sync_val_compare_and_swap_1 |
| ; CHECK-ARM: mov [[REG:r[0-9]+]], #0 |
| ; CHECK-ARM: cmp r0, {{r[0-9]+}} |
| ; CHECK-ARM: moveq [[REG]], #1 |
| ; CHECK-ARM: mov r0, [[REG]] |
| |
| ; CHECK-THUMB-LABEL: test_cmpxchg_res_i8 |
| ; CHECK-THUMB: bl __sync_val_compare_and_swap_1 |
| ; CHECK-THUMB-NOT: mov [[R1:r[0-7]]], r0 |
| ; CHECK-THUMB: push {r0} |
| ; CHECK-THUMB: pop {[[R1:r[0-7]]]} |
| ; CHECK-THUMB: movs r0, #1 |
| ; CHECK-THUMB: movs [[R2:r[0-9]+]], #0 |
| ; CHECK-THUMB: cmp [[R1]], {{r[0-9]+}} |
| ; CHECK-THU<B: beq |
| ; CHECK-THUMB: push {[[R2]]} |
| ; CHECK-THUMB: pop {r0} |
| |
| ; CHECK-ARMV7-LABEL: test_cmpxchg_res_i8 |
| ; CHECK-ARMV7: ldrexb [[R3:r[0-9]+]], [r0] |
| ; CHECK-ARMV7: mov [[R1:r[0-9]+]], #0 |
| ; CHECK-ARMV7: cmp [[R3]], {{r[0-9]+}} |
| ; CHECK-ARMV7: bne |
| ; CHECK-ARMV7: strexb [[R3]], {{r[0-9]+}}, [{{r[0-9]+}}] |
| ; CHECK-ARMV7: mov [[R1]], #1 |
| ; CHECK-ARMV7: cmp [[R3]], #0 |
| ; CHECK-ARMV7: bne |
| ; CHECK-ARMV7: mov r0, [[R1]] |
| |
| ; CHECK-THUMBV7-LABEL: test_cmpxchg_res_i8 |
| ; CHECK-THUMBV7: ldrexb [[R3:r[0-9]+]], [r0] |
| ; CHECK-THUMBV7: cmp [[R3]], {{r[0-9]+}} |
| ; CHECK-THUMBV7: movne r0, #0 |
| ; CHECK-THUMBV7: bxne lr |
| ; CHECK-THUMBV7: strexb [[R3]], {{r[0-9]+}}, [{{r[0-9]+}}] |
| ; CHECK-THUMBV7: cmp [[R3]], #0 |
| ; CHECK-THUMBV7: itt eq |
| ; CHECK-THUMBV7: moveq r0, #1 |
| ; CHECK-THUMBV7: bxeq lr |
