; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s ; %or2 cannot be folded into %or1 because %or1 has disjoint. ; TODO: Can we move the logic into InstCombine and drop the disjoint flag? define i64 @test(i1 %cond, i64 %x) { ; CHECK-LABEL: define i64 @test( ; CHECK-SAME: i1 [[COND:%.*]], i64 [[X:%.*]]) { ; CHECK-NEXT: [[OR1:%.*]] = or disjoint i64 [[X]], 7 ; CHECK-NEXT: [[SEL1:%.*]] = select i1 [[COND]], i64 [[OR1]], i64 [[X]] ; CHECK-NEXT: [[OR2:%.*]] = or i64 [[SEL1]], 7 ; CHECK-NEXT: ret i64 [[OR2]] ; %or1 = or disjoint i64 %x, 7 %sel1 = select i1 %cond, i64 %or1, i64 %x %or2 = or i64 %sel1, 7 ret i64 %or2 } define i64 @pr87042(i64 %x) { ; CHECK-LABEL: define i64 @pr87042( ; CHECK-SAME: i64 [[X:%.*]]) { ; CHECK-NEXT: [[AND1:%.*]] = and i64 [[X]], 65535 ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i64 [[AND1]], 0 ; CHECK-NEXT: [[OR1:%.*]] = or disjoint i64 [[X]], 7 ; CHECK-NEXT: [[SEL1:%.*]] = select i1 [[CMP1]], i64 [[OR1]], i64 [[X]] ; CHECK-NEXT: [[AND2:%.*]] = and i64 [[SEL1]], 16776960 ; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i64 [[AND2]], 0 ; CHECK-NEXT: [[OR2:%.*]] = or i64 [[SEL1]], 7 ; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[CMP2]], i64 [[OR2]], i64 [[SEL1]] ; CHECK-NEXT: ret i64 [[SEL2]] ; %and1 = and i64 %x, 65535 %cmp1 = icmp eq i64 %and1, 0 %or1 = or disjoint i64 %x, 7 %sel1 = select i1 %cmp1, i64 %or1, i64 %x %and2 = and i64 %sel1, 16776960 %cmp2 = icmp eq i64 %and2, 0 %or2 = or i64 %sel1, 7 %sel2 = select i1 %cmp2, i64 %or2, i64 %sel1 ret i64 %sel2 }