| Logan Chien | 63bee2a | 2014-07-21 17:33:44 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -mtriple=arm-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-ARM |
| 2 | ; RUN: llc < %s -mtriple=thumb-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-THUMB |
| 3 | |
| 4 | ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-ARMV7 |
| 5 | ; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-THUMBV7 |
| 6 | |
| 7 | define zeroext i1 @test_cmpxchg_res_i8(i8* %addr, i8 %desired, i8 zeroext %new) { |
| 8 | entry: |
| 9 | %0 = cmpxchg i8* %addr, i8 %desired, i8 %new monotonic monotonic |
| 10 | %1 = extractvalue { i8, i1 } %0, 1 |
| 11 | ret i1 %1 |
| 12 | } |
| 13 | |
| 14 | ; CHECK-ARM-LABEL: test_cmpxchg_res_i8 |
| 15 | ; CHECK-ARM: bl __sync_val_compare_and_swap_1 |
| 16 | ; CHECK-ARM: mov [[REG:r[0-9]+]], #0 |
| 17 | ; CHECK-ARM: cmp r0, {{r[0-9]+}} |
| 18 | ; CHECK-ARM: moveq [[REG]], #1 |
| 19 | ; CHECK-ARM: mov r0, [[REG]] |
| 20 | |
| 21 | ; CHECK-THUMB-LABEL: test_cmpxchg_res_i8 |
| 22 | ; CHECK-THUMB: bl __sync_val_compare_and_swap_1 |
| 23 | ; CHECK-THUMB: mov [[R1:r[0-9]+]], r0 |
| 24 | ; CHECK-THUMB: movs r0, #1 |
| 25 | ; CHECK-THUMB: movs [[R2:r[0-9]+]], #0 |
| 26 | ; CHECK-THUMB: cmp [[R1]], {{r[0-9]+}} |
| 27 | ; CHECK-THU<B: beq |
| 28 | ; CHECK-THUMB: mov r0, [[R2]] |
| 29 | |
| 30 | ; CHECK-ARMV7-LABEL: test_cmpxchg_res_i8 |
| 31 | ; CHECK-ARMV7: ldrexb [[R3:r[0-9]+]], [r0] |
| 32 | ; CHECK-ARMV7: mov [[R1:r[0-9]+]], #0 |
| 33 | ; CHECK-ARMV7: cmp [[R3]], {{r[0-9]+}} |
| 34 | ; CHECK-ARMV7: bne |
| 35 | ; CHECK-ARMV7: strexb [[R3]], {{r[0-9]+}}, [{{r[0-9]+}}] |
| 36 | ; CHECK-ARMV7: mov [[R1]], #1 |
| 37 | ; CHECK-ARMV7: cmp [[R3]], #0 |
| 38 | ; CHECK-ARMV7: bne |
| 39 | ; CHECK-ARMV7: mov r0, [[R1]] |
| 40 | |
| 41 | ; CHECK-THUMBV7-LABEL: test_cmpxchg_res_i8 |
| 42 | ; CHECK-THUMBV7: ldrexb [[R3:r[0-9]+]], [r0] |
| 43 | ; CHECK-THUMBV7: cmp [[R3]], {{r[0-9]+}} |
| 44 | ; CHECK-THUMBV7: movne r0, #0 |
| 45 | ; CHECK-THUMBV7: bxne lr |
| 46 | ; CHECK-THUMBV7: strexb [[R3]], {{r[0-9]+}}, [{{r[0-9]+}}] |
| 47 | ; CHECK-THUMBV7: cmp [[R3]], #0 |
| 48 | ; CHECK-THUMBV7: itt eq |
| 49 | ; CHECK-THUMBV7: moveq r0, #1 |
| 50 | ; CHECK-THUMBV7: bxeq lr |