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
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-gnu-linux < %s | FileCheck %s -check-prefix=CHECK
define signext i32 @memcmp8(ptr nocapture readonly %buffer1, ptr nocapture readonly %buffer2) {
; CHECK-LABEL: memcmp8:
; CHECK: # %bb.0:
; CHECK-NEXT: ldbrx 3, 0, 3
; CHECK-NEXT: ldbrx 4, 0, 4
; CHECK-NEXT: cmpld 3, 4
; CHECK-NEXT: subc 3, 4, 3
; CHECK-NEXT: subfe 3, 4, 4
; CHECK-NEXT: li 4, -1
; CHECK-NEXT: neg 3, 3
; CHECK-NEXT: isellt 3, 4, 3
; CHECK-NEXT: extsw 3, 3
; CHECK-NEXT: blr
%call = tail call signext i32 @memcmp(ptr %buffer1, ptr %buffer2, i64 8)
ret i32 %call
}
define signext i32 @memcmp4(ptr nocapture readonly %buffer1, ptr nocapture readonly %buffer2) {
; CHECK-LABEL: memcmp4:
; CHECK: # %bb.0:
; CHECK-NEXT: lwbrx 3, 0, 3
; CHECK-NEXT: lwbrx 4, 0, 4
; CHECK-NEXT: cmplw 3, 4
; CHECK-NEXT: sub 5, 4, 3
; CHECK-NEXT: li 3, -1
; CHECK-NEXT: rldicl 5, 5, 1, 63
; CHECK-NEXT: isellt 3, 3, 5
; CHECK-NEXT: blr
%call = tail call signext i32 @memcmp(ptr %buffer1, ptr %buffer2, i64 4)
ret i32 %call
}
define signext i32 @memcmp2(ptr nocapture readonly %buffer1, ptr nocapture readonly %buffer2) {
; CHECK-LABEL: memcmp2:
; CHECK: # %bb.0:
; CHECK-NEXT: lhbrx 3, 0, 3
; CHECK-NEXT: lhbrx 4, 0, 4
; CHECK-NEXT: sub 3, 3, 4
; CHECK-NEXT: extsw 3, 3
; CHECK-NEXT: blr
%call = tail call signext i32 @memcmp(ptr %buffer1, ptr %buffer2, i64 2)
ret i32 %call
}
define signext i32 @memcmp1(ptr nocapture readonly %buffer1, ptr nocapture readonly %buffer2) {
; CHECK-LABEL: memcmp1:
; CHECK: # %bb.0:
; CHECK-NEXT: lbz 3, 0(3)
; CHECK-NEXT: lbz 4, 0(4)
; CHECK-NEXT: sub 3, 3, 4
; CHECK-NEXT: extsw 3, 3
; CHECK-NEXT: blr
%call = tail call signext i32 @memcmp(ptr %buffer1, ptr %buffer2, i64 1) #2
ret i32 %call
}
declare signext i32 @memcmp(ptr, ptr, i64)
|
