| ; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s |
| |
| ; Unsigned 8-bit division |
| define i8 @udiv8(i8 %a, i8 %b) { |
| ; CHECK-LABEL: div8: |
| ; CHECK: call __udivmodqi4 |
| ; CHECK-NEXT: ret |
| |
| %quotient = udiv i8 %a, %b |
| ret i8 %quotient |
| } |
| |
| ; Signed 8-bit division |
| define i8 @sdiv8(i8 %a, i8 %b) { |
| ; CHECK-LABEL: sdiv8: |
| ; CHECK: call __divmodqi4 |
| ; CHECK-NEXT: ret |
| |
| %quotient = sdiv i8 %a, %b |
| ret i8 %quotient |
| } |
| |
| ; Unsigned 16-bit division |
| define i16 @udiv16(i16 %a, i16 %b) { |
| ; CHECK-LABEL: udiv16: |
| ; CHECK: call __udivmodhi4 |
| ; CHECK-NEXT: movw r24, r22 |
| ; CHECK-NEXT: ret |
| %quot = udiv i16 %a, %b |
| ret i16 %quot |
| } |
| |
| ; Signed 16-bit division |
| define i16 @sdiv16(i16 %a, i16 %b) { |
| ; CHECK-LABEL: sdiv16: |
| ; CHECK: call __divmodhi4 |
| ; CHECK-NEXT: movw r24, r22 |
| ; CHECK-NEXT: ret |
| %quot = sdiv i16 %a, %b |
| ret i16 %quot |
| } |
| |
| ; Unsigned 32-bit division |
| define i32 @udiv32(i32 %a, i32 %b) { |
| ; CHECK-LABEL: udiv32: |
| ; CHECK: call __udivmodsi4 |
| ; CHECK-NEXT: movw r22, r18 |
| ; CHECK-NEXT: movw r24, r20 |
| ; CHECK-NEXT: ret |
| %quot = udiv i32 %a, %b |
| ret i32 %quot |
| } |
| |
| ; Signed 32-bit division |
| define i32 @sdiv32(i32 %a, i32 %b) { |
| ; CHECK-LABEL: sdiv32: |
| ; CHECK: call __divmodsi4 |
| ; CHECK-NEXT: movw r22, r18 |
| ; CHECK-NEXT: movw r24, r20 |
| ; CHECK-NEXT: ret |
| %quot = sdiv i32 %a, %b |
| ret i32 %quot |
| } |
| |
| ; Unsigned 64-bit division |
| define i64 @udiv64(i64 %a, i64 %b) { |
| ; CHECK-LABEL: udiv64: |
| ; CHECK: call __udivdi3 |
| ; CHECK: ret |
| %quot = udiv i64 %a, %b |
| ret i64 %quot |
| } |
| |
| ; Signed 64-bit division |
| define i64 @sdiv64(i64 %a, i64 %b) { |
| ; CHECK-LABEL: sdiv64: |
| ; CHECK: call __divdi3 |
| ; CHECK: ret |
| %quot = sdiv i64 %a, %b |
| ret i64 %quot |
| } |
| |
| ; Unsigned 128-bit division |
| define i128 @udiv128(i128 %a, i128 %b) { |
| ; CHECK-LABEL: udiv128: |
| ; CHECK: call __udivti3 |
| ; CHECK: ret |
| %quot = udiv i128 %a, %b |
| ret i128 %quot |
| } |
| |
| ; Signed 128-bit division |
| define i128 @sdiv128(i128 %a, i128 %b) { |
| ; CHECK-LABEL: sdiv128: |
| ; CHECK: call __divti3 |
| ; CHECK: ret |
| %quot = sdiv i128 %a, %b |
| ret i128 %quot |
| } |
| |