1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc -mtriple=aarch64-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,ISEL 3 ; RUN: llc -mtriple=aarch64-linux-gnu -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,FAST 4 5 define i32 @sdiv_i32_exact(i32 %a) { 6 ; CHECK-LABEL: sdiv_i32_exact: 7 ; CHECK: // %bb.0: 8 ; CHECK-NEXT: asr w0, w0, #3 9 ; CHECK-NEXT: ret 10 %1 = sdiv exact i32 %a, 8 11 ret i32 %1 12 } 13 14 define i32 @sdiv_i32_pos(i32 %a) { 15 ; CHECK-LABEL: sdiv_i32_pos: 16 ; CHECK: // %bb.0: 17 ; CHECK-NEXT: add w8, w0, #7 // =7 18 ; CHECK-NEXT: cmp w0, #0 // =0 19 ; CHECK-NEXT: csel w8, w8, w0, lt 20 ; CHECK-NEXT: asr w0, w8, #3 21 ; CHECK-NEXT: ret 22 %1 = sdiv i32 %a, 8 23 ret i32 %1 24 } 25 26 define i32 @sdiv_i32_neg(i32 %a) { 27 ; CHECK-LABEL: sdiv_i32_neg: 28 ; CHECK: // %bb.0: 29 ; CHECK-NEXT: add w8, w0, #7 // =7 30 ; CHECK-NEXT: cmp w0, #0 // =0 31 ; CHECK-NEXT: csel w8, w8, w0, lt 32 ; CHECK-NEXT: neg w0, w8, asr #3 33 ; CHECK-NEXT: ret 34 %1 = sdiv i32 %a, -8 35 ret i32 %1 36 } 37 38 define i64 @sdiv_i64_exact(i64 %a) { 39 ; CHECK-LABEL: sdiv_i64_exact: 40 ; CHECK: // %bb.0: 41 ; CHECK-NEXT: asr x0, x0, #4 42 ; CHECK-NEXT: ret 43 %1 = sdiv exact i64 %a, 16 44 ret i64 %1 45 } 46 47 define i64 @sdiv_i64_pos(i64 %a) { 48 ; CHECK-LABEL: sdiv_i64_pos: 49 ; CHECK: // %bb.0: 50 ; CHECK-NEXT: add x8, x0, #15 // =15 51 ; CHECK-NEXT: cmp x0, #0 // =0 52 ; CHECK-NEXT: csel x8, x8, x0, lt 53 ; CHECK-NEXT: asr x0, x8, #4 54 ; CHECK-NEXT: ret 55 %1 = sdiv i64 %a, 16 56 ret i64 %1 57 } 58 59 define i64 @sdiv_i64_neg(i64 %a) { 60 ; CHECK-LABEL: sdiv_i64_neg: 61 ; CHECK: // %bb.0: 62 ; CHECK-NEXT: add x8, x0, #15 // =15 63 ; CHECK-NEXT: cmp x0, #0 // =0 64 ; CHECK-NEXT: csel x8, x8, x0, lt 65 ; CHECK-NEXT: neg x0, x8, asr #4 66 ; CHECK-NEXT: ret 67 %1 = sdiv i64 %a, -16 68 ret i64 %1 69 } 70
