1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-linux-gnu -fast-isel=0 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,ISEL
; RUN: llc -mtriple=aarch64-linux-gnu -fast-isel=1 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,FAST
define i32 @test1(i32 %x) {
; CHECK-LABEL: test1:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, #7 // =7
; CHECK-NEXT: cmp w0, #0 // =0
; CHECK-NEXT: csel w8, w8, w0, lt
; CHECK-NEXT: asr w0, w8, #3
; CHECK-NEXT: ret
%div = sdiv i32 %x, 8
ret i32 %div
}
define i32 @test2(i32 %x) {
; CHECK-LABEL: test2:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, #7 // =7
; CHECK-NEXT: cmp w0, #0 // =0
; CHECK-NEXT: csel w8, w8, w0, lt
; CHECK-NEXT: neg w0, w8, asr #3
; CHECK-NEXT: ret
%div = sdiv i32 %x, -8
ret i32 %div
}
define i32 @test3(i32 %x) {
; CHECK-LABEL: test3:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, #31 // =31
; CHECK-NEXT: cmp w0, #0 // =0
; CHECK-NEXT: csel w8, w8, w0, lt
; CHECK-NEXT: asr w0, w8, #5
; CHECK-NEXT: ret
%div = sdiv i32 %x, 32
ret i32 %div
}
define i64 @test4(i64 %x) {
; CHECK-LABEL: test4:
; CHECK: // %bb.0:
; CHECK-NEXT: add x8, x0, #7 // =7
; CHECK-NEXT: cmp x0, #0 // =0
; CHECK-NEXT: csel x8, x8, x0, lt
; CHECK-NEXT: asr x0, x8, #3
; CHECK-NEXT: ret
%div = sdiv i64 %x, 8
ret i64 %div
}
define i64 @test5(i64 %x) {
; CHECK-LABEL: test5:
; CHECK: // %bb.0:
; CHECK-NEXT: add x8, x0, #7 // =7
; CHECK-NEXT: cmp x0, #0 // =0
; CHECK-NEXT: csel x8, x8, x0, lt
; CHECK-NEXT: neg x0, x8, asr #3
; CHECK-NEXT: ret
%div = sdiv i64 %x, -8
ret i64 %div
}
define i64 @test6(i64 %x) {
; CHECK-LABEL: test6:
; CHECK: // %bb.0:
; CHECK-NEXT: add x8, x0, #63 // =63
; CHECK-NEXT: cmp x0, #0 // =0
; CHECK-NEXT: csel x8, x8, x0, lt
; CHECK-NEXT: asr x0, x8, #6
; CHECK-NEXT: ret
%div = sdiv i64 %x, 64
ret i64 %div
}
define i64 @test7(i64 %x) {
; CHECK-LABEL: test7:
; CHECK: // %bb.0:
; CHECK-NEXT: mov x8, #281474976710655
; CHECK-NEXT: add x8, x0, x8
; CHECK-NEXT: cmp x0, #0 // =0
; CHECK-NEXT: csel x8, x8, x0, lt
; CHECK-NEXT: asr x0, x8, #48
; CHECK-NEXT: ret
%div = sdiv i64 %x, 281474976710656
ret i64 %div
}
|
