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
4 define signext i32 @memcmp8(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
5 ; CHECK-LABEL: memcmp8:
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
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)
24 define signext i32 @memcmp4(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
25 ; CHECK-LABEL: memcmp4:
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
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)
42 define signext i32 @memcmp2(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
43 ; CHECK-LABEL: memcmp2:
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
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)
56 define signext i32 @memcmp1(i32* nocapture readonly %buffer1, i32* nocapture readonly %buffer2) {
57 ; CHECK-LABEL: memcmp1:
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
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
70 declare signext i32 @memcmp(i8*, i8*, i64)