; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s declare void @use(i1) define i1 @test_and_ule(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]] ; CHECK-NEXT: br i1 [[AND]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], true ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 [[X]], [[A:%.*]] ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], [[C_3]] ; CHECK-NEXT: ret i1 [[R_3]] ; CHECK: exit: ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[C_4]], [[C_5]] ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_6]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[R_5]], [[C_7]] ; CHECK-NEXT: ret i1 [[R_6]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %and = and i1 %c.1, %c.2 br i1 %and, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %c.3 = icmp ule i4 %x, %a %r.3 = xor i1 %r.2, %c.3 ret i1 %r.3 exit: %c.4 = icmp ule i4 %x, %z %c.5 = icmp ule i4 %x, %a %r.4 = xor i1 %c.4, %c.5 %c.6 = icmp ule i4 %x, %y %r.5 = xor i1 %r.4, %c.6 %c.7 = icmp ule i4 %y, %z %r.6 = xor i1 %r.5, %c.7 ret i1 %r.6 } ; The result of test_and_ule and test_and_select_ule should be same define i1 @test_and_select_ule(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_select_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[AND:%.*]] = select i1 [[C_1]], i1 [[C_2]], i1 false ; CHECK-NEXT: br i1 [[AND]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], true ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 [[X]], [[A:%.*]] ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], [[C_3]] ; CHECK-NEXT: ret i1 [[R_3]] ; CHECK: exit: ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[C_4]], [[C_5]] ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_6]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[R_5]], [[C_7]] ; CHECK-NEXT: ret i1 [[R_6]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %and = select i1 %c.1, i1 %c.2, i1 false br i1 %and, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %c.3 = icmp ule i4 %x, %a %r.3 = xor i1 %r.2, %c.3 ret i1 %r.3 exit: %c.4 = icmp ule i4 %x, %z %c.5 = icmp ule i4 %x, %a %r.4 = xor i1 %c.4, %c.5 %c.6 = icmp ule i4 %x, %y %r.5 = xor i1 %r.4, %c.6 %c.7 = icmp ule i4 %y, %z %r.6 = xor i1 %r.5, %c.7 ret i1 %r.6 } define i4 @and_compare_undef(i4 %N, i4 %step) { ; CHECK-LABEL: @and_compare_undef( ; CHECK-NEXT: step.check: ; CHECK-NEXT: [[B1:%.*]] = add i4 undef, -1 ; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i4 [[B1]], [[N:%.*]] ; CHECK-NEXT: [[AND_STEP:%.*]] = and i1 true, [[STEP_ULT_N]] ; CHECK-NEXT: br i1 [[AND_STEP]], label [[PTR_CHECK:%.*]], label [[EXIT:%.*]] ; CHECK: ptr.check: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i4 3 ; step.check: %step.pos = icmp uge i4 %step, 0 %B1 = add i4 undef, -1 %step.ult.N = icmp ult i4 %B1, %N %and.step = and i1 %step.pos, %step.ult.N br i1 %and.step, label %ptr.check, label %exit ptr.check: br label %exit exit: ret i4 3 } define i1 @test_and_condition_trivially_false(i1 %c, ptr %ptr.1, i8 %idx, ptr %ptr.2) { ; CHECK-LABEL: @test_and_condition_trivially_false( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[C:%.*]], label [[THEN:%.*]], label [[EXIT_3:%.*]] ; CHECK: then: ; CHECK-NEXT: [[IDX_EXT:%.*]] = zext i8 [[IDX:%.*]] to i16 ; CHECK-NEXT: [[GEP_IDX_EXT:%.*]] = getelementptr inbounds i8, ptr [[PTR_1:%.*]], i16 [[IDX_EXT]] ; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult ptr [[PTR_2:%.*]], [[GEP_IDX_EXT]] ; CHECK-NEXT: [[AND:%.*]] = and i1 false, [[CMP_2]] ; CHECK-NEXT: br i1 [[AND]], label [[EXIT_1:%.*]], label [[EXIT_2:%.*]] ; CHECK: exit.1: ; CHECK-NEXT: ret i1 true ; CHECK: exit.2: ; CHECK-NEXT: ret i1 false ; CHECK: exit.3: ; CHECK-NEXT: [[CMP_3:%.*]] = icmp ne i8 [[IDX]], 0 ; CHECK-NEXT: ret i1 [[CMP_3]] ; entry: br i1 %c, label %then, label %exit.3 then: %cmp.1 = icmp ugt ptr %ptr.2, %ptr.2 %idx.ext = zext i8 %idx to i16 %gep.idx.ext = getelementptr inbounds i8, ptr %ptr.1, i16 %idx.ext %cmp.2 = icmp ult ptr %ptr.2, %gep.idx.ext %and = and i1 %cmp.1, %cmp.2 br i1 %and, label %exit.1, label %exit.2 exit.1: ret i1 true exit.2: ret i1 false exit.3: %cmp.3 = icmp ne i8 %idx, 0 ret i1 %cmp.3 } define i1 @test_and_chain_ule_1(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_chain_ule_1( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 3, [[A:%.*]] ; CHECK-NEXT: [[AND_1:%.*]] = and i1 [[C_1]], [[C_2]] ; CHECK-NEXT: [[AND_2:%.*]] = and i1 [[AND_1]], [[C_3]] ; CHECK-NEXT: [[AND_3:%.*]] = and i1 [[C_4]], [[AND_2]] ; CHECK-NEXT: br i1 [[AND_3]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], true ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], true ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[R_3]], true ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_5]] ; CHECK-NEXT: ret i1 [[R_5]] ; CHECK: exit: ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[C_6]], [[C_7]] ; CHECK-NEXT: [[C_8:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_7:%.*]] = xor i1 [[R_6]], [[C_8]] ; CHECK-NEXT: [[C_9:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_8:%.*]] = xor i1 [[R_7]], [[C_9]] ; CHECK-NEXT: [[C_10:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_9:%.*]] = xor i1 [[R_8]], [[C_10]] ; CHECK-NEXT: [[C_11:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_10:%.*]] = xor i1 [[R_9]], [[C_11]] ; CHECK-NEXT: ret i1 [[R_10]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %c.3 = icmp ule i4 3, %x %c.4 = icmp ule i4 3, %a %and.1 = and i1 %c.1, %c.2 %and.2 = and i1 %and.1, %c.3 %and.3 = and i1 %c.4, %and.2 br i1 %and.3, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %t.4 = icmp ule i4 3, %x %r.3 = xor i1 %r.2, %t.4 %t.5 = icmp ule i4 3, %a %r.4 = xor i1 %r.3, %t.5 %c.5 = icmp ule i4 %x, %a %r.5 = xor i1 %r.4, %c.5 ret i1 %r.5 exit: %c.6 = icmp ule i4 %x, %z %c.7 = icmp ule i4 %x, %a %r.6 = xor i1 %c.6, %c.7 %c.8 = icmp ule i4 %x, %y %r.7 = xor i1 %r.6, %c.8 %c.9 = icmp ule i4 %y, %z %r.8 = xor i1 %r.7, %c.9 %c.10 = icmp ule i4 3, %x %r.9 = xor i1 %r.8, %c.10 %c.11 = icmp ule i4 3, %a %r.10 = xor i1 %r.9, %c.11 ret i1 %r.10 } ; Same as @test_and_chain_ule_1 but with `and`s reordered. define i1 @test_and_chain_ule_2(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_chain_ule_2( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 3, [[A:%.*]] ; CHECK-NEXT: [[AND_1:%.*]] = and i1 [[C_1]], [[C_2]] ; CHECK-NEXT: [[AND_2:%.*]] = and i1 [[C_3]], [[C_4]] ; CHECK-NEXT: [[AND_3:%.*]] = and i1 [[AND_1]], [[AND_2]] ; CHECK-NEXT: br i1 [[AND_3]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], true ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], true ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[R_3]], true ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_5]] ; CHECK-NEXT: ret i1 [[R_5]] ; CHECK: exit: ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[C_6]], [[C_7]] ; CHECK-NEXT: [[C_8:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_7:%.*]] = xor i1 [[R_6]], [[C_8]] ; CHECK-NEXT: [[C_9:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_8:%.*]] = xor i1 [[R_7]], [[C_9]] ; CHECK-NEXT: [[C_10:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_9:%.*]] = xor i1 [[R_8]], [[C_10]] ; CHECK-NEXT: [[C_11:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_10:%.*]] = xor i1 [[R_9]], [[C_11]] ; CHECK-NEXT: ret i1 [[R_10]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %c.3 = icmp ule i4 3, %x %c.4 = icmp ule i4 3, %a %and.1 = and i1 %c.1, %c.2 %and.2 = and i1 %c.3, %c.4 %and.3 = and i1 %and.1, %and.2 br i1 %and.3, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %t.4 = icmp ule i4 3, %x %r.3 = xor i1 %r.2, %t.4 %t.5 = icmp ule i4 3, %a %r.4 = xor i1 %r.3, %t.5 %c.5 = icmp ule i4 %x, %a %r.5 = xor i1 %r.4, %c.5 ret i1 %r.5 exit: %c.6 = icmp ule i4 %x, %z %c.7 = icmp ule i4 %x, %a %r.6 = xor i1 %c.6, %c.7 %c.8 = icmp ule i4 %x, %y %r.7 = xor i1 %r.6, %c.8 %c.9 = icmp ule i4 %y, %z %r.8 = xor i1 %r.7, %c.9 %c.10 = icmp ule i4 3, %x %r.9 = xor i1 %r.8, %c.10 %c.11 = icmp ule i4 3, %a %r.10 = xor i1 %r.9, %c.11 ret i1 %r.10 } declare i1 @cond() readnone define i1 @test_and_chain_with_other_insts_ule(i4 %x, i4 %y, i4 %z, i4 %a, i1 %arg.c) { ; CHECK-LABEL: @test_and_chain_with_other_insts_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[C_3:%.*]] = call i1 @cond() ; CHECK-NEXT: [[AND_1:%.*]] = and i1 [[C_1]], [[C_2]] ; CHECK-NEXT: [[AND_2:%.*]] = and i1 [[C_3]], [[ARG_C:%.*]] ; CHECK-NEXT: [[AND_3:%.*]] = and i1 [[AND_1]], [[AND_2]] ; CHECK-NEXT: br i1 [[AND_3]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], true ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], [[C_4]] ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 3, [[A:%.*]] ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[R_3]], [[C_5]] ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_6]] ; CHECK-NEXT: ret i1 [[R_5]] ; CHECK: exit: ; CHECK-NEXT: [[C_8:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_9:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[C_8]], [[C_9]] ; CHECK-NEXT: [[C_10:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_7:%.*]] = xor i1 [[R_6]], [[C_10]] ; CHECK-NEXT: [[C_11:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_8:%.*]] = xor i1 [[R_7]], [[C_11]] ; CHECK-NEXT: [[C_12:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_9:%.*]] = xor i1 [[R_8]], [[C_12]] ; CHECK-NEXT: [[C_13:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_10:%.*]] = xor i1 [[R_9]], [[C_13]] ; CHECK-NEXT: ret i1 [[R_10]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %c.3 = call i1 @cond() %and.1 = and i1 %c.1, %c.2 %and.2 = and i1 %c.3, %arg.c %and.3 = and i1 %and.1, %and.2 br i1 %and.3, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %c.4 = icmp ule i4 3, %x %r.3 = xor i1 %r.2, %c.4 %c.5 = icmp ule i4 3, %a %r.4 = xor i1 %r.3, %c.5 %c.6 = icmp ule i4 %x, %a %r.5 = xor i1 %r.4, %c.6 ret i1 %r.5 exit: %c.8 = icmp ule i4 %x, %z %c.9 = icmp ule i4 %x, %a %r.6 = xor i1 %c.8, %c.9 %c.10 = icmp ule i4 %x, %y %r.7 = xor i1 %r.6, %c.10 %c.11 = icmp ule i4 %y, %z %r.8 = xor i1 %r.7, %c.11 %c.12 = icmp ule i4 3, %x %r.9 = xor i1 %r.8, %c.12 %c.13 = icmp ule i4 3, %a %r.10 = xor i1 %r.9, %c.13 ret i1 %r.10 } define i1 @test_and_chain_select_ule(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_chain_select_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 3, [[A:%.*]] ; CHECK-NEXT: [[AND_1:%.*]] = select i1 [[C_1]], i1 [[C_1]], i1 false ; CHECK-NEXT: [[AND_2:%.*]] = select i1 [[AND_1]], i1 [[C_3]], i1 false ; CHECK-NEXT: [[AND_3:%.*]] = select i1 [[C_4]], i1 [[AND_2]], i1 false ; CHECK-NEXT: br i1 [[AND_3]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[T_1:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[R_1:%.*]] = xor i1 [[T_1]], true ; CHECK-NEXT: [[T_3:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], [[T_3]] ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], true ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[R_3]], true ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_5]] ; CHECK-NEXT: ret i1 [[R_5]] ; CHECK: exit: ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[C_6]], [[C_7]] ; CHECK-NEXT: [[C_8:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_7:%.*]] = xor i1 [[R_6]], [[C_8]] ; CHECK-NEXT: [[C_9:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_8:%.*]] = xor i1 [[R_7]], [[C_9]] ; CHECK-NEXT: [[C_10:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_9:%.*]] = xor i1 [[R_8]], [[C_10]] ; CHECK-NEXT: [[C_11:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_10:%.*]] = xor i1 [[R_9]], [[C_11]] ; CHECK-NEXT: ret i1 [[R_10]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %c.3 = icmp ule i4 3, %x %c.4 = icmp ule i4 3, %a %and.1 = select i1 %c.1, i1 %c.1, i1 false %and.2 = select i1 %and.1, i1 %c.3, i1 false %and.3 = select i1 %c.4, i1 %and.2, i1 false br i1 %and.3, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %t.4 = icmp ule i4 3, %x %r.3 = xor i1 %r.2, %t.4 %t.5 = icmp ule i4 3, %a %r.4 = xor i1 %r.3, %t.5 %c.5 = icmp ule i4 %x, %a %r.5 = xor i1 %r.4, %c.5 ret i1 %r.5 exit: %c.6 = icmp ule i4 %x, %z %c.7 = icmp ule i4 %x, %a %r.6 = xor i1 %c.6, %c.7 %c.8 = icmp ule i4 %x, %y %r.7 = xor i1 %r.6, %c.8 %c.9 = icmp ule i4 %y, %z %r.8 = xor i1 %r.7, %c.9 %c.10 = icmp ule i4 3, %x %r.9 = xor i1 %r.8, %c.10 %c.11 = icmp ule i4 3, %a %r.10 = xor i1 %r.9, %c.11 ret i1 %r.10 } define i1 @test_and_chain_select_ule_logical_or(i4 %x, i4 %y, i4 %z, i4 %a) { ; CHECK-LABEL: @test_and_chain_select_ule_logical_or( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]] ; CHECK-NEXT: [[C_3:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[C_4:%.*]] = icmp ule i4 3, [[A:%.*]] ; CHECK-NEXT: [[AND_1:%.*]] = select i1 [[C_1]], i1 [[C_1]], i1 false ; CHECK-NEXT: [[AND_2:%.*]] = select i1 [[AND_1]], i1 [[C_3]], i1 false ; CHECK-NEXT: [[AND_3:%.*]] = select i1 [[C_4]], i1 [[AND_2]], i1 false ; CHECK-NEXT: [[AND_4:%.*]] = select i1 [[AND_3]], i1 true, i1 false ; CHECK-NEXT: br i1 [[AND_4]], label [[BB1:%.*]], label [[EXIT:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[T_1:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[T_2:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_1:%.*]] = xor i1 [[T_1]], [[T_2]] ; CHECK-NEXT: [[T_3:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_2:%.*]] = xor i1 [[R_1]], [[T_3]] ; CHECK-NEXT: [[T_4:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_3:%.*]] = xor i1 [[R_2]], [[T_4]] ; CHECK-NEXT: [[T_5:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_4:%.*]] = xor i1 [[R_3]], [[T_5]] ; CHECK-NEXT: [[C_5:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_5:%.*]] = xor i1 [[R_4]], [[C_5]] ; CHECK-NEXT: ret i1 [[R_5]] ; CHECK: exit: ; CHECK-NEXT: [[C_6:%.*]] = icmp ule i4 [[X]], [[Z]] ; CHECK-NEXT: [[C_7:%.*]] = icmp ule i4 [[X]], [[A]] ; CHECK-NEXT: [[R_6:%.*]] = xor i1 [[C_6]], [[C_7]] ; CHECK-NEXT: [[C_8:%.*]] = icmp ule i4 [[X]], [[Y]] ; CHECK-NEXT: [[R_7:%.*]] = xor i1 [[R_6]], [[C_8]] ; CHECK-NEXT: [[C_9:%.*]] = icmp ule i4 [[Y]], [[Z]] ; CHECK-NEXT: [[R_8:%.*]] = xor i1 [[R_7]], [[C_9]] ; CHECK-NEXT: [[C_10:%.*]] = icmp ule i4 3, [[X]] ; CHECK-NEXT: [[R_9:%.*]] = xor i1 [[R_8]], [[C_10]] ; CHECK-NEXT: [[C_11:%.*]] = icmp ule i4 3, [[A]] ; CHECK-NEXT: [[R_10:%.*]] = xor i1 [[R_9]], [[C_11]] ; CHECK-NEXT: ret i1 [[R_10]] ; entry: %c.1 = icmp ule i4 %x, %y %c.2 = icmp ule i4 %y, %z %c.3 = icmp ule i4 3, %x %c.4 = icmp ule i4 3, %a %and.1 = select i1 %c.1, i1 %c.1, i1 false %and.2 = select i1 %and.1, i1 %c.3, i1 false %and.3 = select i1 %c.4, i1 %and.2, i1 false %and.4 = select i1 %and.3, i1 true, i1 false br i1 %and.4, label %bb1, label %exit bb1: %t.1 = icmp ule i4 %x, %z %t.2 = icmp ule i4 %x, %y %r.1 = xor i1 %t.1, %t.2 %t.3 = icmp ule i4 %y, %z %r.2 = xor i1 %r.1, %t.3 %t.4 = icmp ule i4 3, %x %r.3 = xor i1 %r.2, %t.4 %t.5 = icmp ule i4 3, %a %r.4 = xor i1 %r.3, %t.5 %c.5 = icmp ule i4 %x, %a %r.5 = xor i1 %r.4, %c.5 ret i1 %r.5 exit: %c.6 = icmp ule i4 %x, %z %c.7 = icmp ule i4 %x, %a %r.6 = xor i1 %c.6, %c.7 %c.8 = icmp ule i4 %x, %y %r.7 = xor i1 %r.6, %c.8 %c.9 = icmp ule i4 %y, %z %r.8 = xor i1 %r.7, %c.9 %c.10 = icmp ule i4 3, %x %r.9 = xor i1 %r.8, %c.10 %c.11 = icmp ule i4 3, %a %r.10 = xor i1 %r.9, %c.11 ret i1 %r.10 }