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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
define i64 @sext_xor_sub(i64 %a, i1 %b) {
; CHECK-LABEL: define i64 @sext_xor_sub(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[A]]
; CHECK-NEXT: [[R:%.*]] = select i1 [[B]], i64 [[TMP1]], i64 [[A]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %a, %c
%r = sub i64 %d, %c
ret i64 %r
}
define i64 @sext_xor_sub_1(i64 %a, i1 %b) {
; CHECK-LABEL: define i64 @sext_xor_sub_1(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[A]]
; CHECK-NEXT: [[R:%.*]] = select i1 [[B]], i64 [[TMP1]], i64 [[A]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %c, %a
%r = sub i64 %d, %c
ret i64 %r
}
define i64 @sext_xor_sub_2(i64 %a, i1 %b) {
; CHECK-LABEL: define i64 @sext_xor_sub_2(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[A]]
; CHECK-NEXT: [[R:%.*]] = select i1 [[B]], i64 [[A]], i64 [[TMP1]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %a, %c
%r = sub i64 %c, %d
ret i64 %r
}
define i64 @sext_xor_sub_3(i64 %a, i1 %b) {
; CHECK-LABEL: define i64 @sext_xor_sub_3(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[A]]
; CHECK-NEXT: [[R:%.*]] = select i1 [[B]], i64 [[A]], i64 [[TMP1]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %c, %a
%r = sub i64 %c, %d
ret i64 %r
}
; Sext non boolean type.
define i64 @sext_non_bool_xor_sub(i64 %a, i8 %b) {
; CHECK-LABEL: define i64 @sext_non_bool_xor_sub(
; CHECK-SAME: i64 [[A:%.*]], i8 [[B:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = sext i8 [[B]] to i64
; CHECK-NEXT: [[D:%.*]] = xor i64 [[C]], [[A]]
; CHECK-NEXT: [[R:%.*]] = sub i64 [[D]], [[C]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i8 %b to i64
%d = xor i64 %a, %c
%r = sub i64 %d, %c
ret i64 %r
}
define i64 @sext_non_bool_xor_sub_1(i64 %a, i8 %b) {
; CHECK-LABEL: define i64 @sext_non_bool_xor_sub_1(
; CHECK-SAME: i64 [[A:%.*]], i8 [[B:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = sext i8 [[B]] to i64
; CHECK-NEXT: [[D:%.*]] = xor i64 [[C]], [[A]]
; CHECK-NEXT: [[R:%.*]] = sub i64 [[D]], [[C]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i8 %b to i64
%d = xor i64 %c, %a
%r = sub i64 %d, %c
ret i64 %r
}
; Different boolean values.
define i64 @sext_diff_i1_xor_sub(i64 %a, i1 %b, i1 %c) {
; CHECK-LABEL: define i64 @sext_diff_i1_xor_sub(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: [[D:%.*]] = sext i1 [[B]] to i64
; CHECK-NEXT: [[E_NEG:%.*]] = zext i1 [[C]] to i64
; CHECK-NEXT: [[R:%.*]] = add nsw i64 [[E_NEG]], [[D]]
; CHECK-NEXT: ret i64 [[R]]
;
%d = sext i1 %b to i64
%e = sext i1 %c to i64
%f = xor i64 %a, %d
%r = sub i64 %d, %e
ret i64 %r
}
define i64 @sext_diff_i1_xor_sub_1(i64 %a, i1 %b, i1 %c) {
; CHECK-LABEL: define i64 @sext_diff_i1_xor_sub_1(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: [[D:%.*]] = sext i1 [[B]] to i64
; CHECK-NEXT: [[E_NEG:%.*]] = zext i1 [[C]] to i64
; CHECK-NEXT: [[R:%.*]] = add nsw i64 [[E_NEG]], [[D]]
; CHECK-NEXT: ret i64 [[R]]
;
%d = sext i1 %b to i64
%e = sext i1 %c to i64
%f = xor i64 %d, %a
%r = sub i64 %d, %e
ret i64 %r
}
; (sext C) has multiple uses.
define i64 @sext_multi_uses(i64 %a, i1 %b, i64 %x) {
; CHECK-LABEL: define i64 @sext_multi_uses(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]], i64 [[X:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[X]], [[A]]
; CHECK-NEXT: [[TMP2:%.*]] = sub i64 0, [[TMP1]]
; CHECK-NEXT: [[R:%.*]] = select i1 [[B]], i64 [[TMP2]], i64 [[A]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %a, %c
%e = sub i64 %d, %c
%f = mul i64 %x, %c
%r = add i64 %f, %e
ret i64 %r
}
; (xor X, (sext C)) has multiple uses.
define i64 @xor_multi_uses(i64 %a, i1 %b, i64 %x) {
; CHECK-LABEL: define i64 @xor_multi_uses(
; CHECK-SAME: i64 [[A:%.*]], i1 [[B:%.*]], i64 [[X:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = sext i1 [[B]] to i64
; CHECK-NEXT: [[D:%.*]] = xor i64 [[C]], [[A]]
; CHECK-NEXT: [[E:%.*]] = sub i64 [[D]], [[C]]
; CHECK-NEXT: [[F:%.*]] = mul i64 [[D]], [[X]]
; CHECK-NEXT: [[R:%.*]] = add i64 [[F]], [[E]]
; CHECK-NEXT: ret i64 [[R]]
;
%c = sext i1 %b to i64
%d = xor i64 %a, %c
%e = sub i64 %d, %c
%f = mul i64 %x, %d
%r = add i64 %f, %e
ret i64 %r
}
define i64 @absdiff(i64 %a, i64 %b) {
; CHECK-LABEL: define i64 @absdiff(
; CHECK-SAME: i64 [[A:%.*]], i64 [[B:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = icmp ult i64 [[A]], [[B]]
; CHECK-NEXT: [[D:%.*]] = sub i64 [[A]], [[B]]
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[D]]
; CHECK-NEXT: [[RES:%.*]] = select i1 [[C]], i64 [[TMP1]], i64 [[D]]
; CHECK-NEXT: ret i64 [[RES]]
;
%c = icmp ult i64 %a, %b
%c.ext = sext i1 %c to i64
%d = sub i64 %a, %b
%may.rev = xor i64 %c.ext, %d
%res = sub i64 %may.rev, %c.ext
ret i64 %res
}
; Commuted xor operands compared to absdiff.
define i64 @absdiff1(i64 %a, i64 %b) {
; CHECK-LABEL: define i64 @absdiff1(
; CHECK-SAME: i64 [[A:%.*]], i64 [[B:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = icmp ult i64 [[A]], [[B]]
; CHECK-NEXT: [[D:%.*]] = sub i64 [[A]], [[B]]
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[D]]
; CHECK-NEXT: [[RES:%.*]] = select i1 [[C]], i64 [[TMP1]], i64 [[D]]
; CHECK-NEXT: ret i64 [[RES]]
;
%c = icmp ult i64 %a, %b
%c.ext = sext i1 %c to i64
%d = sub i64 %a, %b
%may.rev = xor i64 %d, %c.ext
%res = sub i64 %may.rev, %c.ext
ret i64 %res
}
; Use ugt as compare cond.
define i64 @absdiff2(i64 %a, i64 %b) {
; CHECK-LABEL: define i64 @absdiff2(
; CHECK-SAME: i64 [[A:%.*]], i64 [[B:%.*]]) {
; CHECK-NEXT: [[C:%.*]] = icmp ugt i64 [[A]], [[B]]
; CHECK-NEXT: [[D:%.*]] = sub i64 [[B]], [[A]]
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[D]]
; CHECK-NEXT: [[RES:%.*]] = select i1 [[C]], i64 [[TMP1]], i64 [[D]]
; CHECK-NEXT: ret i64 [[RES]]
;
%c = icmp ugt i64 %a, %b
%c.ext = sext i1 %c to i64
%d = sub i64 %b, %a
%may.rev = xor i64 %d, %c.ext
%res = sub i64 %may.rev, %c.ext
ret i64 %res
}
|
