| Eli Friedman | 2bdffe4 | 2011-08-31 00:31:29 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s |
| 2 | |
| 3 | define i64 @test1(i64* %ptr, i64 %val) { |
| 4 | ; CHECK: test1 |
| 5 | ; CHECK: dmb ish |
| 6 | ; CHECK: ldrexd r2, r3 |
| 7 | ; CHECK: adds r0, r2 |
| 8 | ; CHECK: adc r1, r3 |
| 9 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 10 | ; CHECK: cmp |
| 11 | ; CHECK: bne |
| 12 | ; CHECK: dmb ish |
| 13 | %r = atomicrmw add i64* %ptr, i64 %val seq_cst |
| 14 | ret i64 %r |
| 15 | } |
| 16 | |
| 17 | define i64 @test2(i64* %ptr, i64 %val) { |
| 18 | ; CHECK: test2 |
| 19 | ; CHECK: dmb ish |
| 20 | ; CHECK: ldrexd r2, r3 |
| 21 | ; CHECK: subs r0, r2 |
| 22 | ; CHECK: sbc r1, r3 |
| 23 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 24 | ; CHECK: cmp |
| 25 | ; CHECK: bne |
| 26 | ; CHECK: dmb ish |
| 27 | %r = atomicrmw sub i64* %ptr, i64 %val seq_cst |
| 28 | ret i64 %r |
| 29 | } |
| 30 | |
| 31 | define i64 @test3(i64* %ptr, i64 %val) { |
| 32 | ; CHECK: test3 |
| 33 | ; CHECK: dmb ish |
| 34 | ; CHECK: ldrexd r2, r3 |
| 35 | ; CHECK: and r0, r2 |
| 36 | ; CHECK: and r1, r3 |
| 37 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 38 | ; CHECK: cmp |
| 39 | ; CHECK: bne |
| 40 | ; CHECK: dmb ish |
| 41 | %r = atomicrmw and i64* %ptr, i64 %val seq_cst |
| 42 | ret i64 %r |
| 43 | } |
| 44 | |
| 45 | define i64 @test4(i64* %ptr, i64 %val) { |
| 46 | ; CHECK: test4 |
| 47 | ; CHECK: dmb ish |
| 48 | ; CHECK: ldrexd r2, r3 |
| 49 | ; CHECK: orr r0, r2 |
| 50 | ; CHECK: orr r1, r3 |
| 51 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 52 | ; CHECK: cmp |
| 53 | ; CHECK: bne |
| 54 | ; CHECK: dmb ish |
| 55 | %r = atomicrmw or i64* %ptr, i64 %val seq_cst |
| 56 | ret i64 %r |
| 57 | } |
| 58 | |
| 59 | define i64 @test5(i64* %ptr, i64 %val) { |
| 60 | ; CHECK: test5 |
| 61 | ; CHECK: dmb ish |
| 62 | ; CHECK: ldrexd r2, r3 |
| 63 | ; CHECK: eor r0, r2 |
| 64 | ; CHECK: eor r1, r3 |
| 65 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 66 | ; CHECK: cmp |
| 67 | ; CHECK: bne |
| 68 | ; CHECK: dmb ish |
| 69 | %r = atomicrmw xor i64* %ptr, i64 %val seq_cst |
| 70 | ret i64 %r |
| 71 | } |
| 72 | |
| 73 | define i64 @test6(i64* %ptr, i64 %val) { |
| 74 | ; CHECK: test6 |
| 75 | ; CHECK: dmb ish |
| 76 | ; CHECK: ldrexd r2, r3 |
| 77 | ; CHECK: strexd {{r[0-9]+}}, r0, r1 |
| 78 | ; CHECK: cmp |
| 79 | ; CHECK: bne |
| 80 | ; CHECK: dmb ish |
| 81 | %r = atomicrmw xchg i64* %ptr, i64 %val seq_cst |
| 82 | ret i64 %r |
| 83 | } |