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 4 define 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 24 define 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 42 define 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 56 define 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 70 declare signext i32 @memcmp(i8*, i8*, i64) 71
