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llvm-project/llvm/test/Transforms/InstCombine/select-safe-impliedcond-tra...

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define i1 @a_true_implies_b_true(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_true(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[X:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp ugt i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = select i1 %a, i1 %sel, i1 false
ret i1 %res
}
define <2 x i1> @a_true_implies_b_true_vec(i8 %z0, <2 x i1> %X, <2 x i1> %Y) {
; CHECK-LABEL: @a_true_implies_b_true_vec(
; CHECK-NEXT: [[A0:%.*]] = insertelement <2 x i8> poison, i8 [[Z0:%.*]], i64 0
; CHECK-NEXT: [[Z:%.*]] = shufflevector <2 x i8> [[A0]], <2 x i8> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: [[A:%.*]] = icmp ugt <2 x i8> [[Z]], <i8 20, i8 19>
; CHECK-NEXT: [[B:%.*]] = icmp ugt i8 [[Z0]], 10
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[B]], <2 x i1> [[X:%.*]], <2 x i1> [[Y:%.*]]
; CHECK-NEXT: [[RES:%.*]] = select <2 x i1> [[A]], <2 x i1> [[SEL]], <2 x i1> zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[RES]]
;
%a0 = insertelement <2 x i8> poison, i8 %z0, i8 0
%z = shufflevector <2 x i8> %a0, <2 x i8> poison, <2 x i32> zeroinitializer
%a = icmp ugt <2 x i8> %z, <i8 20, i8 19>
%b = icmp ugt i8 %z0, 10
%sel = select i1 %b, <2 x i1> %X, <2 x i1> %Y
%res = select <2 x i1> %a, <2 x i1> %sel, <2 x i1> zeroinitializer
ret <2 x i1> %res
}
define i1 @a_true_implies_b_true2(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_true2(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[X:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp ugt i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = and i1 %a, %sel
ret i1 %res
}
define i1 @a_true_implies_b_true2_comm(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_true2_comm(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[X:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp ugt i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = and i1 %sel, %a
ret i1 %res
}
define i1 @a_true_implies_b_false(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_false(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[Y:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp ult i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = select i1 %a, i1 %sel, i1 false
ret i1 %res
}
define i1 @a_true_implies_b_false2(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_false2(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[Y:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp eq i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = and i1 %a, %sel
ret i1 %res
}
define i1 @a_true_implies_b_false2_comm(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_true_implies_b_false2_comm(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 20
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 [[Y:%.*]], i1 false
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 20
%b = icmp eq i8 %z, 10
%sel = select i1 %b, i1 %X, i1 %Y
%res = and i1 %sel, %a
ret i1 %res
}
define i1 @a_false_implies_b_true(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_true(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[X:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ult i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = select i1 %a, i1 true, i1 %sel
ret i1 %res
}
define i1 @a_false_implies_b_true2(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_true2(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[X:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ult i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = or i1 %a, %sel
ret i1 %res
}
define i1 @a_false_implies_b_true2_comm(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_true2_comm(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[X:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ult i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = or i1 %sel, %a
ret i1 %res
}
define i1 @a_false_implies_b_false(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_false(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[Y:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ugt i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = select i1 %a, i1 true, i1 %sel
ret i1 %res
}
define i1 @a_false_implies_b_false2(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_false2(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[Y:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ugt i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = or i1 %a, %sel
ret i1 %res
}
define i1 @a_false_implies_b_false2_comm(i8 %z, i1 %X, i1 %Y) {
; CHECK-LABEL: @a_false_implies_b_false2_comm(
; CHECK-NEXT: [[A:%.*]] = icmp ugt i8 [[Z:%.*]], 10
; CHECK-NEXT: [[RES:%.*]] = select i1 [[A]], i1 true, i1 [[Y:%.*]]
; CHECK-NEXT: ret i1 [[RES]]
;
%a = icmp ugt i8 %z, 10
%b = icmp ugt i8 %z, 20
%sel = select i1 %b, i1 %X, i1 %Y
%res = or i1 %sel, %a
ret i1 %res
}
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