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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:    subfc 5, 3, 4
10; CHECK-NEXT:    subfe 5, 4, 4
11; CHECK-NEXT:    subfc 4, 4, 3
12; CHECK-NEXT:    subfe 3, 3, 3
13; CHECK-NEXT:    neg 4, 5
14; CHECK-NEXT:    neg 3, 3
15; CHECK-NEXT:    subf 3, 3, 4
16; CHECK-NEXT:    extsw 3, 3
17; CHECK-NEXT:    blr
18  %t0 = bitcast i32* %buffer1 to i8*
19  %t1 = bitcast i32* %buffer2 to i8*
20  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 8)
21  ret i32 %call
22}
23
24define signext i32 @memcmp4(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
25; CHECK-LABEL: memcmp4:
26; CHECK:       # %bb.0:
27; CHECK-NEXT:    lwbrx 3, 0, 3
28; CHECK-NEXT:    lwbrx 4, 0, 4
29; CHECK-NEXT:    sub 5, 4, 3
30; CHECK-NEXT:    sub 3, 3, 4
31; CHECK-NEXT:    rldicl 4, 5, 1, 63
32; CHECK-NEXT:    rldicl 3, 3, 1, 63
33; CHECK-NEXT:    subf 3, 3, 4
34; CHECK-NEXT:    extsw 3, 3
35; CHECK-NEXT:    blr
36  %t0 = bitcast i32* %buffer1 to i8*
37  %t1 = bitcast i32* %buffer2 to i8*
38  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 4)
39  ret i32 %call
40}
41
42define signext i32 @memcmp2(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
43; CHECK-LABEL: memcmp2:
44; CHECK:       # %bb.0:
45; CHECK-NEXT:    lhbrx 3, 0, 3
46; CHECK-NEXT:    lhbrx 4, 0, 4
47; CHECK-NEXT:    subf 3, 4, 3
48; CHECK-NEXT:    extsw 3, 3
49; CHECK-NEXT:    blr
50  %t0 = bitcast i32* %buffer1 to i8*
51  %t1 = bitcast i32* %buffer2 to i8*
52  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 2)
53  ret i32 %call
54}
55
56define signext i32 @memcmp1(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
57; CHECK-LABEL: memcmp1:
58; CHECK:       # %bb.0:
59; CHECK-NEXT:    lbz 3, 0(3)
60; CHECK-NEXT:    lbz 4, 0(4)
61; CHECK-NEXT:    subf 3, 4, 3
62; CHECK-NEXT:    extsw 3, 3
63; CHECK-NEXT:    blr
64  %t0 = bitcast i32* %buffer1 to i8*
65  %t1 = bitcast i32* %buffer2 to i8*
66  %call = tail call signext i32 @memcmp(i8* %t0, i8* %t1, i64 1) #2
67  ret i32 %call
68}
69
70declare signext i32 @memcmp(i8*, i8*, i64)
71