1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=instcombine -S < %s | FileCheck %s 3 4; Test that presence of range does not cause unprofitable transforms with bit 5; arithmetics. 6 7define i1 @without_range(ptr %A) { 8; CHECK-LABEL: @without_range( 9; CHECK-NEXT: [[A_VAL:%.*]] = load i32, ptr [[A:%.*]], align 8 10; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[A_VAL]], 2 11; CHECK-NEXT: ret i1 [[C]] 12; 13 %A.val = load i32, ptr %A, align 8 14 %B = sdiv i32 %A.val, 2 15 %C = icmp sge i32 0, %B 16 ret i1 %C 17} 18 19define i1 @with_range(ptr %A) { 20; CHECK-LABEL: @with_range( 21; CHECK-NEXT: [[A_VAL:%.*]] = load i32, ptr [[A:%.*]], align 8, !range [[RNG0:![0-9]+]] 22; CHECK-NEXT: [[C:%.*]] = icmp samesign ult i32 [[A_VAL]], 2 23; CHECK-NEXT: ret i1 [[C]] 24; 25 %A.val = load i32, ptr %A, align 8, !range !0 26 %B = sdiv i32 %A.val, 2 27 %C = icmp sge i32 0, %B 28 ret i1 %C 29} 30 31!0 = !{i32 0, i32 2147483647} 32