1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-gnu-linux  < %s | FileCheck %s -check-prefix=CHECK
3
4define signext i32 @memcmp8(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
5; CHECK-LABEL: memcmp8:
6; CHECK:       # BB#0:
7; CHECK-NEXT:    ldbrx 3, 0, 3
8; CHECK-NEXT:    ldbrx 4, 0, 4
9; CHECK-NEXT:    li 5, 0
10; CHECK-NEXT:    cmpld 3, 4
11; CHECK-NEXT:    li 3, 1
12; CHECK-NEXT:    isel 4, 3, 5, 1
13; CHECK-NEXT:    isel 3, 3, 5, 0
14; CHECK-NEXT:    subf 3, 3, 4
15; CHECK-NEXT:    extsw 3, 3
16; CHECK-NEXT:    blr
17  %t0 = bitcast i32* %buffer1 to i8*
18  %t1 = bitcast i32* %buffer2 to i8*
19  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 8)
20  ret i32 %call
21}
22
23define signext i32 @memcmp4(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
24; CHECK-LABEL: memcmp4:
25; CHECK:       # BB#0:
26; CHECK-NEXT:    lwbrx 3, 0, 3
27; CHECK-NEXT:    lwbrx 4, 0, 4
28; CHECK-NEXT:    sub 5, 4, 3
29; CHECK-NEXT:    sub 3, 3, 4
30; CHECK-NEXT:    rldicl 4, 5, 1, 63
31; CHECK-NEXT:    rldicl 3, 3, 1, 63
32; CHECK-NEXT:    subf 3, 3, 4
33; CHECK-NEXT:    extsw 3, 3
34; CHECK-NEXT:    blr
35  %t0 = bitcast i32* %buffer1 to i8*
36  %t1 = bitcast i32* %buffer2 to i8*
37  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 4)
38  ret i32 %call
39}
40
41define signext i32 @memcmp2(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
42; CHECK-LABEL: memcmp2:
43; CHECK:       # BB#0:
44; CHECK-NEXT:    lhbrx 3, 0, 3
45; CHECK-NEXT:    lhbrx 4, 0, 4
46; CHECK-NEXT:    subf 3, 4, 3
47; CHECK-NEXT:    extsw 3, 3
48; CHECK-NEXT:    blr
49  %t0 = bitcast i32* %buffer1 to i8*
50  %t1 = bitcast i32* %buffer2 to i8*
51  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 2)
52  ret i32 %call
53}
54
55define signext i32 @memcmp1(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
56; CHECK-LABEL: memcmp1:
57; CHECK:       # BB#0:
58; CHECK-NEXT:    lbz 3, 0(3)
59; CHECK-NEXT:    lbz 4, 0(4)
60; CHECK-NEXT:    subf 3, 4, 3
61; CHECK-NEXT:    extsw 3, 3
62; CHECK-NEXT:    blr
63  %t0 = bitcast i32* %buffer1 to i8*
64  %t1 = bitcast i32* %buffer2 to i8*
65  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 1) #2
66  ret i32 %call
67}
68
69declare signext i32 @memcmp(i8*, i8*, i64)
70