; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -passes=sccp -S | FileCheck %s define i1 @foo(i32 %t4, i32 %t10) { ; CHECK-LABEL: @foo( ; CHECK-NEXT: [[T09:%.*]] = shl i32 [[T10:%.*]], 24 ; CHECK-NEXT: [[T010:%.*]] = ashr exact i32 [[T09]], 24 ; CHECK-NEXT: [[T011:%.*]] = add nsw i32 [[T010]], 979 ; CHECK-NEXT: [[T11:%.*]] = trunc i32 [[T4:%.*]] to i8 ; CHECK-NEXT: [[T12:%.*]] = icmp eq i8 [[T11]], 0 ; CHECK-NEXT: [[T14:%.*]] = zext i1 [[T12]] to i32 ; CHECK-NEXT: [[T15:%.*]] = shl i32 [[T4]], [[T14]] ; CHECK-NEXT: [[T17:%.*]] = and i32 [[T15]], 255 ; CHECK-NEXT: ret i1 false ; %t09 = shl i32 %t10, 24 %t010 = ashr exact i32 %t09, 24 %t011 = add nsw i32 %t010, 979 %t11 = trunc i32 %t4 to i8 %t12 = icmp eq i8 %t11, 0 %t14 = zext i1 %t12 to i32 %t15 = shl i32 %t4, %t14 %t17 = and i32 %t15, 255 %t18 = icmp eq i32 %t011, %t17 ret i1 %t18 } define i1 @bar(i32 %t4, i32 %t10) { ; CHECK-LABEL: @bar( ; CHECK-NEXT: [[T09:%.*]] = shl i32 [[T10:%.*]], 24 ; CHECK-NEXT: [[T010:%.*]] = ashr exact i32 [[T09]], 24 ; CHECK-NEXT: [[T011:%.*]] = add nsw i32 [[T010]], 979 ; CHECK-NEXT: [[T11:%.*]] = trunc i32 [[T4:%.*]] to i8 ; CHECK-NEXT: [[T12:%.*]] = icmp eq i8 [[T11]], 0 ; CHECK-NEXT: [[T14:%.*]] = zext i1 [[T12]] to i8 ; CHECK-NEXT: [[T15:%.*]] = shl i8 [[T11]], [[T14]] ; CHECK-NEXT: [[T17:%.*]] = zext i8 [[T15]] to i32 ; CHECK-NEXT: ret i1 false ; %t09 = shl i32 %t10, 24 %t010 = ashr exact i32 %t09, 24 %t011 = add nsw i32 %t010, 979 %t11 = trunc i32 %t4 to i8 %t12 = icmp eq i8 %t11, 0 %t14 = zext i1 %t12 to i8 %t15 = shl i8 %t11, %t14 %t17 = zext i8 %t15 to i32 %t18 = icmp eq i32 %t011, %t17 ret i1 %t18 } define i1 @foobar(i32 %t4, i32 %t10) { ; CHECK-LABEL: @foobar( ; CHECK-NEXT: [[T09:%.*]] = shl i32 [[T10:%.*]], 24 ; CHECK-NEXT: [[T010:%.*]] = ashr exact i32 [[T09]], 24 ; CHECK-NEXT: [[T011:%.*]] = add nsw i32 [[T010]], 979 ; CHECK-NEXT: [[T11:%.*]] = trunc i32 [[T4:%.*]] to i8 ; CHECK-NEXT: [[T12:%.*]] = icmp eq i8 [[T11]], 0 ; CHECK-NEXT: [[T13:%.*]] = zext i8 [[T11]] to i32 ; CHECK-NEXT: [[T14:%.*]] = select i1 [[T12]], i32 1, i32 0 ; CHECK-NEXT: [[T15:%.*]] = shl nuw nsw i32 [[T13]], [[T14]] ; CHECK-NEXT: [[T16:%.*]] = trunc i32 [[T15]] to i8 ; CHECK-NEXT: [[T17:%.*]] = zext i8 [[T16]] to i32 ; CHECK-NEXT: ret i1 false ; %t09 = shl i32 %t10, 24 %t010 = ashr exact i32 %t09, 24 %t011 = add nsw i32 %t010, 979 %t11 = trunc i32 %t4 to i8 %t12 = icmp eq i8 %t11, 0 %t13 = zext i8 %t11 to i32 %t14 = select i1 %t12, i32 1, i32 0 %t15 = shl nuw nsw i32 %t13, %t14 %t16 = trunc i32 %t15 to i8 %t17 = zext i8 %t16 to i32 %t18 = icmp eq i32 %t011, %t17 ret i1 %t18 }