| Dylan McKay | 619ca04 | 2016-11-09 23:46:52 +0000 | [diff] [blame] | 1 | ; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s |
| 2 | |
| 3 | ; Unsigned 8-bit division |
| 4 | define i8 @udiv8(i8 %a, i8 %b) { |
| 5 | ; CHECK-LABEL: div8: |
| 6 | ; CHECK: call __udivmodqi4 |
| 7 | ; CHECK-NEXT: ret |
| 8 | |
| 9 | %quotient = udiv i8 %a, %b |
| 10 | ret i8 %quotient |
| 11 | } |
| 12 | |
| 13 | ; Signed 8-bit division |
| 14 | define i8 @sdiv8(i8 %a, i8 %b) { |
| 15 | ; CHECK-LABEL: sdiv8: |
| 16 | ; CHECK: call __divmodqi4 |
| 17 | ; CHECK-NEXT: ret |
| 18 | |
| 19 | %quotient = sdiv i8 %a, %b |
| 20 | ret i8 %quotient |
| 21 | } |
| 22 | |
| 23 | ; Unsigned 16-bit division |
| 24 | define i16 @udiv16(i16 %a, i16 %b) { |
| 25 | ; CHECK-LABEL: udiv16: |
| 26 | ; CHECK: call __udivmodhi4 |
| 27 | ; CHECK-NEXT: movw r24, r22 |
| 28 | ; CHECK-NEXT: ret |
| 29 | %quot = udiv i16 %a, %b |
| 30 | ret i16 %quot |
| 31 | } |
| 32 | |
| 33 | ; Signed 16-bit division |
| 34 | define i16 @sdiv16(i16 %a, i16 %b) { |
| 35 | ; CHECK-LABEL: sdiv16: |
| 36 | ; CHECK: call __divmodhi4 |
| 37 | ; CHECK-NEXT: movw r24, r22 |
| 38 | ; CHECK-NEXT: ret |
| 39 | %quot = sdiv i16 %a, %b |
| 40 | ret i16 %quot |
| 41 | } |
| 42 | |
| 43 | ; Unsigned 32-bit division |
| 44 | define i32 @udiv32(i32 %a, i32 %b) { |
| 45 | ; CHECK-LABEL: udiv32: |
| 46 | ; CHECK: call __udivmodsi4 |
| 47 | ; CHECK-NEXT: movw r22, r18 |
| 48 | ; CHECK-NEXT: movw r24, r20 |
| 49 | ; CHECK-NEXT: ret |
| 50 | %quot = udiv i32 %a, %b |
| 51 | ret i32 %quot |
| 52 | } |
| 53 | |
| 54 | ; Signed 32-bit division |
| 55 | define i32 @sdiv32(i32 %a, i32 %b) { |
| 56 | ; CHECK-LABEL: sdiv32: |
| 57 | ; CHECK: call __divmodsi4 |
| 58 | ; CHECK-NEXT: movw r22, r18 |
| 59 | ; CHECK-NEXT: movw r24, r20 |
| 60 | ; CHECK-NEXT: ret |
| 61 | %quot = sdiv i32 %a, %b |
| 62 | ret i32 %quot |
| 63 | } |
| 64 | |
| Dylan McKay | f0c8edc | 2018-03-19 00:55:50 +0000 | [diff] [blame] | 65 | ; Unsigned 64-bit division |
| 66 | define i64 @udiv64(i64 %a, i64 %b) { |
| 67 | ; CHECK-LABEL: udiv64: |
| 68 | ; CHECK: call __udivmoddi4 |
| 69 | ; CHECK-NEXT: ldd r18, Y+1 |
| 70 | ; CHECK-NEXT: ldd r19, Y+2 |
| 71 | ; CHECK-NEXT: ldd r20, Y+3 |
| 72 | ; CHECK-NEXT: ldd r21, Y+4 |
| 73 | ; CHECK-NEXT: ldd r22, Y+5 |
| 74 | ; CHECK-NEXT: ldd r23, Y+6 |
| 75 | ; CHECK-NEXT: ldd r24, Y+7 |
| 76 | ; CHECK-NEXT: ldd r25, Y+8 |
| 77 | ; CHECK: ret |
| 78 | %quot = udiv i64 %a, %b |
| 79 | ret i64 %quot |
| 80 | } |
| 81 | |
| 82 | ; Signed 64-bit division |
| 83 | define i64 @sdiv64(i64 %a, i64 %b) { |
| 84 | ; CHECK-LABEL: sdiv64: |
| 85 | ; CHECK: call __divmoddi4 |
| 86 | ; CHECK-NEXT: ldd r18, Y+1 |
| 87 | ; CHECK-NEXT: ldd r19, Y+2 |
| 88 | ; CHECK-NEXT: ldd r20, Y+3 |
| 89 | ; CHECK-NEXT: ldd r21, Y+4 |
| 90 | ; CHECK-NEXT: ldd r22, Y+5 |
| 91 | ; CHECK-NEXT: ldd r23, Y+6 |
| 92 | ; CHECK-NEXT: ldd r24, Y+7 |
| 93 | ; CHECK-NEXT: ldd r25, Y+8 |
| 94 | ; CHECK: ret |
| 95 | %quot = sdiv i64 %a, %b |
| 96 | ret i64 %quot |
| 97 | } |
| 98 | |
| 99 | ; Unsigned 128-bit division |
| 100 | define i128 @udiv128(i128 %a, i128 %b) { |
| 101 | ; CHECK-LABEL: udiv128: |
| 102 | ; CHECK: call __udivmodti4 |
| 103 | ; CHECK: ret |
| 104 | %quot = udiv i128 %a, %b |
| 105 | ret i128 %quot |
| 106 | } |
| 107 | |
| 108 | ; Signed 128-bit division |
| 109 | define i128 @sdiv128(i128 %a, i128 %b) { |
| 110 | ; CHECK-LABEL: sdiv128: |
| 111 | ; CHECK: call __divmodti4 |
| 112 | ; CHECK: ret |
| 113 | %quot = sdiv i128 %a, %b |
| 114 | ret i128 %quot |
| 115 | } |
| 116 | |
