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120
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1 ; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s
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2
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3 ; Unsigned 8-bit division
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4 define i8 @udiv8(i8 %a, i8 %b) {
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5 ; CHECK-LABEL: div8:
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6 ; CHECK: call __udivmodqi4
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7 ; CHECK-NEXT: ret
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8
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9 %quotient = udiv i8 %a, %b
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10 ret i8 %quotient
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11 }
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12
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13 ; Signed 8-bit division
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14 define i8 @sdiv8(i8 %a, i8 %b) {
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15 ; CHECK-LABEL: sdiv8:
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16 ; CHECK: call __divmodqi4
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17 ; CHECK-NEXT: ret
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18
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19 %quotient = sdiv i8 %a, %b
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20 ret i8 %quotient
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21 }
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22
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23 ; Unsigned 16-bit division
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24 define i16 @udiv16(i16 %a, i16 %b) {
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25 ; CHECK-LABEL: udiv16:
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26 ; CHECK: call __udivmodhi4
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27 ; CHECK-NEXT: movw r24, r22
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28 ; CHECK-NEXT: ret
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29 %quot = udiv i16 %a, %b
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30 ret i16 %quot
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31 }
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32
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33 ; Signed 16-bit division
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34 define i16 @sdiv16(i16 %a, i16 %b) {
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35 ; CHECK-LABEL: sdiv16:
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36 ; CHECK: call __divmodhi4
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37 ; CHECK-NEXT: movw r24, r22
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38 ; CHECK-NEXT: ret
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39 %quot = sdiv i16 %a, %b
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40 ret i16 %quot
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41 }
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42
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43 ; Unsigned 32-bit division
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44 define i32 @udiv32(i32 %a, i32 %b) {
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45 ; CHECK-LABEL: udiv32:
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46 ; CHECK: call __udivmodsi4
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47 ; CHECK-NEXT: movw r22, r18
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48 ; CHECK-NEXT: movw r24, r20
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49 ; CHECK-NEXT: ret
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50 %quot = udiv i32 %a, %b
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51 ret i32 %quot
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52 }
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53
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54 ; Signed 32-bit division
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55 define i32 @sdiv32(i32 %a, i32 %b) {
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56 ; CHECK-LABEL: sdiv32:
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57 ; CHECK: call __divmodsi4
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58 ; CHECK-NEXT: movw r22, r18
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59 ; CHECK-NEXT: movw r24, r20
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60 ; CHECK-NEXT: ret
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61 %quot = sdiv i32 %a, %b
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62 ret i32 %quot
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63 }
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64
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