forked from OSchip/llvm-project
65 lines
1.3 KiB
LLVM
65 lines
1.3 KiB
LLVM
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; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s
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; Unsigned 8-bit division
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define i8 @udiv8(i8 %a, i8 %b) {
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; CHECK-LABEL: div8:
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; CHECK: call __udivmodqi4
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; CHECK-NEXT: ret
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%quotient = udiv i8 %a, %b
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ret i8 %quotient
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}
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; Signed 8-bit division
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define i8 @sdiv8(i8 %a, i8 %b) {
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; CHECK-LABEL: sdiv8:
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; CHECK: call __divmodqi4
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; CHECK-NEXT: ret
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%quotient = sdiv i8 %a, %b
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ret i8 %quotient
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}
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; Unsigned 16-bit division
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define i16 @udiv16(i16 %a, i16 %b) {
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; CHECK-LABEL: udiv16:
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; CHECK: call __udivmodhi4
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; CHECK-NEXT: movw r24, r22
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; CHECK-NEXT: ret
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%quot = udiv i16 %a, %b
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ret i16 %quot
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}
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; Signed 16-bit division
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define i16 @sdiv16(i16 %a, i16 %b) {
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; CHECK-LABEL: sdiv16:
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; CHECK: call __divmodhi4
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; CHECK-NEXT: movw r24, r22
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; CHECK-NEXT: ret
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%quot = sdiv i16 %a, %b
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ret i16 %quot
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}
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; Unsigned 32-bit division
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define i32 @udiv32(i32 %a, i32 %b) {
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; CHECK-LABEL: udiv32:
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; CHECK: call __udivmodsi4
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; CHECK-NEXT: movw r22, r18
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; CHECK-NEXT: movw r24, r20
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; CHECK-NEXT: ret
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%quot = udiv i32 %a, %b
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ret i32 %quot
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}
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; Signed 32-bit division
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define i32 @sdiv32(i32 %a, i32 %b) {
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; CHECK-LABEL: sdiv32:
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; CHECK: call __divmodsi4
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; CHECK-NEXT: movw r22, r18
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; CHECK-NEXT: movw r24, r20
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; CHECK-NEXT: ret
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%quot = sdiv i32 %a, %b
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ret i32 %quot
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}
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