| Akira Hatanaka | f53b040 | 2015-07-29 14:17:26 +0000 | [diff] [blame] | 1 | ; RUN: llc -mtriple=arm64-apple-ios -mattr=+strict-align < %s | FileCheck %s |
| Lang Hames | 9033385 | 2015-04-09 03:40:33 +0000 | [diff] [blame] | 2 | |
| Evandro Menezes | f842534 | 2018-05-29 15:58:50 +0000 | [diff] [blame] | 3 | ; Small (16 bytes here) unaligned memcpy() should be a function call if |
| Lang Hames | 9033385 | 2015-04-09 03:40:33 +0000 | [diff] [blame] | 4 | ; strict-alignment is turned on. |
| 5 | define void @t0(i8* %out, i8* %in) { |
| 6 | ; CHECK-LABEL: t0: |
| Eli Friedman | 92d0d13 | 2019-03-25 21:25:28 +0000 | [diff] [blame] | 7 | ; CHECK: mov w2, #16 |
| Evandro Menezes | f842534 | 2018-05-29 15:58:50 +0000 | [diff] [blame] | 8 | ; CHECK-NEXT: bl _memcpy |
| Lang Hames | 9033385 | 2015-04-09 03:40:33 +0000 | [diff] [blame] | 9 | entry: |
| Daniel Neilson | 1e68724 | 2018-01-19 17:13:12 +0000 | [diff] [blame] | 10 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %out, i8* %in, i64 16, i1 false) |
| Lang Hames | 9033385 | 2015-04-09 03:40:33 +0000 | [diff] [blame] | 11 | ret void |
| 12 | } |
| 13 | |
| Evandro Menezes | f842534 | 2018-05-29 15:58:50 +0000 | [diff] [blame] | 14 | ; Small (16 bytes here) aligned memcpy() should be inlined even if |
| 15 | ; strict-alignment is turned on. |
| 16 | define void @t1(i8* align 8 %out, i8* align 8 %in) { |
| 17 | ; CHECK-LABEL: t1: |
| 18 | ; CHECK: ldp x{{[0-9]+}}, x{{[0-9]+}}, [x1] |
| 19 | ; CHECK-NEXT: stp x{{[0-9]+}}, x{{[0-9]+}}, [x0] |
| 20 | entry: |
| 21 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %out, i8* align 8 %in, i64 16, i1 false) |
| 22 | ret void |
| 23 | } |
| 24 | |
| 25 | ; Tiny (4 bytes here) unaligned memcpy() should be inlined with byte sized |
| 26 | ; loads and stores if strict-alignment is turned on. |
| 27 | define void @t2(i8* %out, i8* %in) { |
| 28 | ; CHECK-LABEL: t2: |
| 29 | ; CHECK: ldrb w{{[0-9]+}}, [x1, #3] |
| 30 | ; CHECK-NEXT: ldrb w{{[0-9]+}}, [x1, #2] |
| 31 | ; CHECK-NEXT: ldrb w{{[0-9]+}}, [x1, #1] |
| 32 | ; CHECK-NEXT: ldrb w{{[0-9]+}}, [x1] |
| 33 | ; CHECK-NEXT: strb w{{[0-9]+}}, [x0, #3] |
| 34 | ; CHECK-NEXT: strb w{{[0-9]+}}, [x0, #2] |
| 35 | ; CHECK-NEXT: strb w{{[0-9]+}}, [x0, #1] |
| 36 | ; CHECK-NEXT: strb w{{[0-9]+}}, [x0] |
| 37 | entry: |
| 38 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %out, i8* %in, i64 4, i1 false) |
| 39 | ret void |
| 40 | } |
| 41 | |
| Daniel Neilson | 1e68724 | 2018-01-19 17:13:12 +0000 | [diff] [blame] | 42 | declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) |