1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ;RUN: opt -passes=instcombine -S %s | FileCheck %s
4 define i8 @fast_div_201(i8 %p) {
5 ; CHECK-LABEL: @fast_div_201(
7 ; CHECK-NEXT: [[V3:%.*]] = zext i8 [[P:%.*]] to i16
8 ; CHECK-NEXT: [[V4:%.*]] = mul nuw nsw i16 [[V3]], 71
9 ; CHECK-NEXT: [[V5:%.*]] = lshr i16 [[V4]], 8
10 ; CHECK-NEXT: [[V6:%.*]] = trunc nuw nsw i16 [[V5]] to i8
11 ; CHECK-NEXT: [[V7:%.*]] = sub i8 [[P]], [[V6]]
12 ; CHECK-NEXT: [[V8:%.*]] = lshr i8 [[V7]], 1
13 ; CHECK-NEXT: [[V13:%.*]] = add nuw i8 [[V8]], [[V6]]
14 ; CHECK-NEXT: [[V14:%.*]] = lshr i8 [[V13]], 7
15 ; CHECK-NEXT: ret i8 [[V14]]
18 %v3 = zext i8 %p to i16
21 %v6 = trunc i16 %v5 to i8
24 %v13 = add i8 %v6, %v8
25 %v14 = lshr i8 %v13, 7