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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
define i8 @xor_w_sub_fail_missing_nuw(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @xor_w_sub_fail_missing_nuw(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[X]], 15
; CHECK-NEXT: [[R:%.*]] = sub nsw i8 15, [[XOR]]
; CHECK-NEXT: ret i8 [[R]]
;
%xor = xor i8 %x, 15
%r = sub nsw i8 15, %xor
ret i8 %r
}
define i8 @xor_w_sub_fail_diff_values(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @xor_w_sub_fail_diff_values(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[X]], 15
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw i8 31, [[XOR]]
; CHECK-NEXT: ret i8 [[R]]
;
%xor = xor i8 %x, 15
%r = sub nsw nuw i8 31, %xor
ret i8 %r
}
define i8 @xor_w_sub_fail_diff_values2(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @xor_w_sub_fail_diff_values2(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[X]], 31
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw i8 15, [[XOR]]
; CHECK-NEXT: ret i8 [[R]]
;
%xor = xor i8 %x, 31
%r = sub nsw nuw i8 15, %xor
ret i8 %r
}
define i8 @xor_w_sub_fail_not_mask(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @xor_w_sub_fail_not_mask(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[X]], 30
; CHECK-NEXT: [[R:%.*]] = sub nuw nsw i8 30, [[XOR]]
; CHECK-NEXT: ret i8 [[R]]
;
%xor = xor i8 %x, 30
%r = sub nsw nuw i8 30, %xor
ret i8 %r
}
define i8 @xor_w_sub_okay(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @xor_w_sub_okay(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: ret i8 [[X]]
;
%xor = xor i8 %x, 31
%r = sub nsw nuw i8 31, %xor
ret i8 %r
}
define i8 @sub_w_xor_fail_missing_nuw(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @sub_w_xor_fail_missing_nuw(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[SUB:%.*]] = sub nsw i8 15, [[X]]
; CHECK-NEXT: [[R:%.*]] = xor i8 [[SUB]], 15
; CHECK-NEXT: ret i8 [[R]]
;
%sub = sub nsw i8 15, %x
%r = xor i8 %sub, 15
ret i8 %r
}
define i8 @sub_w_xor_fail_diff_values(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @sub_w_xor_fail_diff_values(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[SUB:%.*]] = sub nuw nsw i8 15, [[X]]
; CHECK-NEXT: [[R:%.*]] = xor i8 [[SUB]], 31
; CHECK-NEXT: ret i8 [[R]]
;
%sub = sub nsw nuw i8 15, %x
%r = xor i8 %sub, 31
ret i8 %r
}
define i8 @sub_w_sub_fail_diff_values2(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @sub_w_sub_fail_diff_values2(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[SUB:%.*]] = sub nuw nsw i8 31, [[X]]
; CHECK-NEXT: [[R:%.*]] = xor i8 [[SUB]], 15
; CHECK-NEXT: ret i8 [[R]]
;
%sub = sub nsw nuw i8 31, %x
%r = xor i8 %sub, 15
ret i8 %r
}
define i8 @sub_w_sub_fail_not_mask(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @sub_w_sub_fail_not_mask(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: [[SUB:%.*]] = sub nuw nsw i8 30, [[X]]
; CHECK-NEXT: [[R:%.*]] = xor i8 [[SUB]], 30
; CHECK-NEXT: ret i8 [[R]]
;
%sub = sub nsw nuw i8 30, %x
%r = xor i8 %sub, 30
ret i8 %r
}
define i8 @sub_w_sub_okay(i8 range(i8 0, 16) %x) {
; CHECK-LABEL: define i8 @sub_w_sub_okay(
; CHECK-SAME: i8 range(i8 0, 16) [[X:%.*]]) {
; CHECK-NEXT: ret i8 [[X]]
;
%sub = sub nsw nuw i8 31, %x
%r = xor i8 %sub, 31
ret i8 %r
}
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