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|
; 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: [[T_1:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: [[T_2:%.*]] = icmp ule i4 [[X]], [[Y]]
; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true
; CHECK-NEXT: [[T_3:%.*]] = icmp ule i4 [[Y]], [[Z]]
; 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: [[T_1:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT: [[T_2:%.*]] = icmp ule i4 [[X]], [[Y]]
; CHECK-NEXT: [[R_1:%.*]] = xor i1 true, true
; CHECK-NEXT: [[T_3:%.*]] = icmp ule i4 [[Y]], [[Z]]
; 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: [[STEP_POS:%.*]] = icmp uge i4 [[STEP:%.*]], 0
; CHECK-NEXT: [[B1:%.*]] = add i4 undef, -1
; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i4 [[B1]], [[N:%.*]]
; CHECK-NEXT: [[AND_STEP:%.*]] = and i1 [[STEP_POS]], [[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, i8* %ptr.1, i8 %idx, i8* %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: [[CMP_1:%.*]] = icmp ugt i8* [[PTR_2:%.*]], [[PTR_2]]
; CHECK-NEXT: [[IDX_EXT:%.*]] = zext i8 [[IDX:%.*]] to i16
; CHECK-NEXT: [[GEP_IDX_EXT:%.*]] = getelementptr inbounds i8, i8* [[PTR_1:%.*]], i16 [[IDX_EXT]]
; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i8* [[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 i8* %ptr.2, %ptr.2
%idx.ext = zext i8 %idx to i16
%gep.idx.ext = getelementptr inbounds i8, i8* %ptr.1, i16 %idx.ext
%cmp.2 = icmp ult i8* %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 1
exit.2:
ret i1 0
exit.3:
%cmp.3 = icmp ne i8 %idx, 0
ret i1 %cmp.3
}
|
