blob: b88f77a4c86114f589cb991e431be4bdffda2737 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
;RUN: opt -instcombine -S %s | FileCheck %s
define i8 @fast_div_201(i8 %p) {
; CHECK-LABEL: @fast_div_201(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[V3:%.*]] = zext i8 [[P:%.*]] to i16
; CHECK-NEXT: [[V4:%.*]] = mul nuw nsw i16 [[V3]], 71
; CHECK-NEXT: [[V5:%.*]] = lshr i16 [[V4]], 8
; CHECK-NEXT: [[V6:%.*]] = trunc i16 [[V5]] to i8
; CHECK-NEXT: [[V7:%.*]] = sub i8 [[P]], [[V6]]
; CHECK-NEXT: [[V8:%.*]] = lshr i8 [[V7]], 1
; CHECK-NEXT: [[V13:%.*]] = add nuw i8 [[V8]], [[V6]]
; CHECK-NEXT: [[V14:%.*]] = lshr i8 [[V13]], 7
; CHECK-NEXT: ret i8 [[V14]]
;
entry:
%v3 = zext i8 %p to i16
%v4 = mul i16 %v3, 71
%v5 = lshr i16 %v4, 8
%v6 = trunc i16 %v5 to i8
%v7 = sub i8 %p, %v6
%v8 = lshr i8 %v7, 1
%v13 = add i8 %v6, %v8
%v14 = lshr i8 %v13, 7
ret i8 %v14
}