forked from OSchip/llvm-project
117 lines
2.4 KiB
LLVM
117 lines
2.4 KiB
LLVM
; 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 __udivmoddi4
|
|
; CHECK-NEXT: ldd r18, Y+1
|
|
; CHECK-NEXT: ldd r19, Y+2
|
|
; CHECK-NEXT: ldd r20, Y+3
|
|
; CHECK-NEXT: ldd r21, Y+4
|
|
; CHECK-NEXT: ldd r22, Y+5
|
|
; CHECK-NEXT: ldd r23, Y+6
|
|
; CHECK-NEXT: ldd r24, Y+7
|
|
; CHECK-NEXT: ldd r25, Y+8
|
|
; 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 __divmoddi4
|
|
; CHECK-NEXT: ldd r18, Y+1
|
|
; CHECK-NEXT: ldd r19, Y+2
|
|
; CHECK-NEXT: ldd r20, Y+3
|
|
; CHECK-NEXT: ldd r21, Y+4
|
|
; CHECK-NEXT: ldd r22, Y+5
|
|
; CHECK-NEXT: ldd r23, Y+6
|
|
; CHECK-NEXT: ldd r24, Y+7
|
|
; CHECK-NEXT: ldd r25, Y+8
|
|
; 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 __udivmodti4
|
|
; 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 __divmodti4
|
|
; CHECK: ret
|
|
%quot = sdiv i128 %a, %b
|
|
ret i128 %quot
|
|
}
|
|
|