forked from OSchip/llvm-project
636 lines
16 KiB
LLVM
636 lines
16 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=instcombine < %s | FileCheck %s
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; X | ~(X | Y) --> X | ~Y
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define i32 @test1(i32 %x, i32 %y) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[Y_NOT:%.*]] = xor i32 [[Y:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[Y_NOT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%or = or i32 %x, %y
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%not = xor i32 %or, -1
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%z = or i32 %x, %not
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ret i32 %z
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}
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; Commute (rename) the inner 'or' operands:
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; Y | ~(X | Y) --> ~X | Y
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define i32 @test2(i32 %x, i32 %y) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[X_NOT:%.*]] = xor i32 [[X:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[X_NOT]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%or = or i32 %x, %y
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%not = xor i32 %or, -1
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%z = or i32 %y, %not
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ret i32 %z
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}
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; X | ~(X ^ Y) --> X | ~Y
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define i32 @test3(i32 %x, i32 %y) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[Y_NOT:%.*]] = xor i32 [[Y:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[Y_NOT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%xor = xor i32 %x, %y
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%not = xor i32 %xor, -1
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%z = or i32 %x, %not
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ret i32 %z
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}
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; Commute (rename) the 'xor' operands:
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; Y | ~(X ^ Y) --> ~X | Y
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define i32 @test4(i32 %x, i32 %y) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[X_NOT:%.*]] = xor i32 [[X:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[X_NOT]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%xor = xor i32 %x, %y
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%not = xor i32 %xor, -1
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%z = or i32 %y, %not
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ret i32 %z
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}
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; (X ^ Y) | ~X --> ~(X & Y)
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define i32 @test5(i32 %x, i32 %y) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%xor = xor i32 %x, %y
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%notx = xor i32 %x, -1
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%z = or i32 %xor, %notx
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ret i32 %z
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}
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; Commute the 'or' operands
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; ~X | (X ^ Y) --> ~(X & Y)
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define <2 x i4> @test5_commuted(<2 x i4> %x, <2 x i4> %y) {
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; CHECK-LABEL: @test5_commuted(
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; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i4> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = xor <2 x i4> [[TMP1]], <i4 -1, i4 -1>
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; CHECK-NEXT: ret <2 x i4> [[Z]]
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;
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%xor = xor <2 x i4> %x, %y
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%notx = xor <2 x i4> %x, <i4 -1, i4 -1>
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%z = or <2 x i4> %notx, %xor
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ret <2 x i4> %z
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}
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; Commute the inner 'xor' operands
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; (Y ^ X) | ~X --> ~(Y & X)
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define i64 @test5_commuted_x_y(i64 %x, i64 %y) {
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; CHECK-LABEL: @test5_commuted_x_y(
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; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = xor i64 [[TMP1]], -1
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; CHECK-NEXT: ret i64 [[Z]]
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;
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%xor = xor i64 %y, %x
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%notx = xor i64 %x, -1
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%z = or i64 %xor, %notx
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ret i64 %z
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}
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define i8 @test5_extra_use_not(i8 %x, i8 %y, i8* %dst) {
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; CHECK-LABEL: @test5_extra_use_not(
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; CHECK-NEXT: [[NOTX:%.*]] = xor i8 [[X:%.*]], -1
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; CHECK-NEXT: store i8 [[NOTX]], i8* [[DST:%.*]], align 1
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; CHECK-NEXT: [[TMP1:%.*]] = and i8 [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = xor i8 [[TMP1]], -1
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; CHECK-NEXT: ret i8 [[Z]]
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;
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%xor = xor i8 %x, %y
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%notx = xor i8 %x, -1
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store i8 %notx, i8* %dst
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%z = or i8 %notx, %xor
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ret i8 %z
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}
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define i65 @test5_extra_use_xor(i65 %x, i65 %y, i65* %dst) {
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; CHECK-LABEL: @test5_extra_use_xor(
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; CHECK-NEXT: [[XOR:%.*]] = xor i65 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: store i65 [[XOR]], i65* [[DST:%.*]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = and i65 [[X]], [[Y]]
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; CHECK-NEXT: [[Z:%.*]] = xor i65 [[TMP1]], -1
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; CHECK-NEXT: ret i65 [[Z]]
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;
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%xor = xor i65 %x, %y
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store i65 %xor, i65* %dst
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%notx = xor i65 %x, -1
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%z = or i65 %notx, %xor
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ret i65 %z
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}
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define i16 @test5_extra_use_not_xor(i16 %x, i16 %y, i16* %dst_not, i16* %dst_xor) {
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; CHECK-LABEL: @test5_extra_use_not_xor(
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; CHECK-NEXT: [[XOR:%.*]] = xor i16 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: store i16 [[XOR]], i16* [[DST_XOR:%.*]], align 2
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; CHECK-NEXT: [[NOTX:%.*]] = xor i16 [[X]], -1
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; CHECK-NEXT: store i16 [[NOTX]], i16* [[DST_NOT:%.*]], align 2
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; CHECK-NEXT: [[Z:%.*]] = or i16 [[XOR]], [[NOTX]]
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; CHECK-NEXT: ret i16 [[Z]]
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;
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%xor = xor i16 %x, %y
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store i16 %xor, i16* %dst_xor
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%notx = xor i16 %x, -1
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store i16 %notx, i16* %dst_not
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%z = or i16 %notx, %xor
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ret i16 %z
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}
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define i32 @test7(i32 %x, i32 %y) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%xor = xor i32 %x, %y
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%z = or i32 %y, %xor
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ret i32 %z
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}
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define i32 @test8(i32 %x, i32 %y) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: [[X_NOT:%.*]] = xor i32 [[X:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[X_NOT]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%not = xor i32 %y, -1
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%xor = xor i32 %x, %not
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%z = or i32 %y, %xor
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ret i32 %z
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}
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define i32 @test9(i32 %x, i32 %y) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: [[Y_NOT:%.*]] = xor i32 [[Y:%.*]], -1
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; CHECK-NEXT: [[Z:%.*]] = or i32 [[Y_NOT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%not = xor i32 %x, -1
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%xor = xor i32 %not, %y
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%z = or i32 %x, %xor
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ret i32 %z
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}
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; (A ^ B) | (~A ^ B) --> -1
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define i32 @test10(i32 %A, i32 %B) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: [[OR:%.*]] = or i32 [[XOR1]], [[XOR2]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%xor1 = xor i32 %B, %A
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%not = xor i32 %A, -1
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%xor2 = xor i32 %not, %B
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%or = or i32 %xor1, %xor2
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ret i32 %or
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}
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define i32 @test10_commuted(i32 %A, i32 %B) {
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; CHECK-LABEL: @test10_commuted(
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; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: [[OR:%.*]] = or i32 [[XOR1]], [[XOR2]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%xor1 = xor i32 %B, %A
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%not = xor i32 %A, -1
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%xor2 = xor i32 %not, %B
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%or = or i32 %xor2, %xor1
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ret i32 %or
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}
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define i32 @test10_extrause(i32 %A, i32 %B, i32* %dst) {
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; CHECK-LABEL: @test10_extrause(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: store i32 [[NOT]], i32* [[DST:%.*]], align 4
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; CHECK-NEXT: ret i32 -1
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;
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%xor1 = xor i32 %B, %A
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%not = xor i32 %A, -1
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store i32 %not, i32* %dst
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%xor2 = xor i32 %not, %B
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%or = or i32 %xor1, %xor2
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ret i32 %or
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}
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define i32 @test10_commuted_extrause(i32 %A, i32 %B, i32* %dst) {
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; CHECK-LABEL: @test10_commuted_extrause(
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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; CHECK-NEXT: store i32 [[NOT]], i32* [[DST:%.*]], align 4
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; CHECK-NEXT: ret i32 -1
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;
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%xor1 = xor i32 %B, %A
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%not = xor i32 %A, -1
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store i32 %not, i32* %dst
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%xor2 = xor i32 %not, %B
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%or = or i32 %xor2, %xor1
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ret i32 %or
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}
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; (A ^ B) | ~(A ^ B) --> -1
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define i32 @test10_canonical(i32 %A, i32 %B) {
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; CHECK-LABEL: @test10_canonical(
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; CHECK-NEXT: [[XOR1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[XOR2:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[XOR2]], -1
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; CHECK-NEXT: [[OR:%.*]] = or i32 [[XOR1]], [[NOT]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%xor1 = xor i32 %B, %A
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%xor2 = xor i32 %A, %B
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%not = xor i32 %xor2, -1
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%or = or i32 %xor1, %not
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ret i32 %or
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}
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; (x | y) & ((~x) ^ y) -> (x & y)
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define i32 @test11(i32 %x, i32 %y) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%or = or i32 %x, %y
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%neg = xor i32 %x, -1
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%xor = xor i32 %neg, %y
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%and = and i32 %or, %xor
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ret i32 %and
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}
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; ((~x) ^ y) & (x | y) -> (x & y)
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define i32 @test12(i32 %x, i32 %y) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%neg = xor i32 %x, -1
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%xor = xor i32 %neg, %y
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%or = or i32 %x, %y
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%and = and i32 %xor, %or
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ret i32 %and
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}
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define i32 @test12_commuted(i32 %x, i32 %y) {
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; CHECK-LABEL: @test12_commuted(
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; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%neg = xor i32 %x, -1
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%xor = xor i32 %neg, %y
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%or = or i32 %y, %x
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%and = and i32 %xor, %or
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ret i32 %and
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}
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; ((x | y) ^ (x ^ y)) -> (x & y)
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define i32 @test13(i32 %x, i32 %y) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%1 = xor i32 %y, %x
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%2 = or i32 %y, %x
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%3 = xor i32 %2, %1
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ret i32 %3
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}
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; ((x | ~y) ^ (~x | y)) -> x ^ y
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define i32 @test14(i32 %x, i32 %y) {
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; CHECK-LABEL: @test14(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%noty = xor i32 %y, -1
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%notx = xor i32 %x, -1
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%or1 = or i32 %x, %noty
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%or2 = or i32 %notx, %y
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%xor = xor i32 %or1, %or2
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ret i32 %xor
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}
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define i32 @test14_commuted(i32 %x, i32 %y) {
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; CHECK-LABEL: @test14_commuted(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%noty = xor i32 %y, -1
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%notx = xor i32 %x, -1
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%or1 = or i32 %noty, %x
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%or2 = or i32 %notx, %y
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%xor = xor i32 %or1, %or2
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ret i32 %xor
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}
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; ((x & ~y) ^ (~x & y)) -> x ^ y
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define i32 @test15(i32 %x, i32 %y) {
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; CHECK-LABEL: @test15(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%noty = xor i32 %y, -1
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%notx = xor i32 %x, -1
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%and1 = and i32 %x, %noty
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%and2 = and i32 %notx, %y
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%xor = xor i32 %and1, %and2
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ret i32 %xor
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}
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define i32 @test15_commuted(i32 %x, i32 %y) {
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; CHECK-LABEL: @test15_commuted(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%noty = xor i32 %y, -1
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%notx = xor i32 %x, -1
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%and1 = and i32 %noty, %x
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%and2 = and i32 %notx, %y
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%xor = xor i32 %and1, %and2
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ret i32 %xor
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}
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; ((a ^ b) & C1) | (b & C2) -> (a & C1) ^ b iff C1 == ~C2
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define i32 @or_and_xor_not_constant_commute0(i32 %a, i32 %b) {
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; CHECK-LABEL: @or_and_xor_not_constant_commute0(
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; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 1
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%or = xor i32 %a, %b
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%and1 = and i32 %or, 1
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%and2 = and i32 %b, -2
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%xor = or i32 %and1, %and2
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ret i32 %xor
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}
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define i9 @or_and_xor_not_constant_commute1(i9 %a, i9 %b) {
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; CHECK-LABEL: @or_and_xor_not_constant_commute1(
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; CHECK-NEXT: [[TMP1:%.*]] = and i9 [[A:%.*]], 42
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; CHECK-NEXT: [[XOR:%.*]] = xor i9 [[TMP1]], [[B:%.*]]
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; CHECK-NEXT: ret i9 [[XOR]]
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;
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%or = xor i9 %b, %a
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%and1 = and i9 %or, 42
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%and2 = and i9 %b, -43
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%xor = or i9 %and1, %and2
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ret i9 %xor
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}
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define <2 x i9> @or_and_xor_not_constant_commute2_splat(<2 x i9> %a, <2 x i9> %b) {
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; CHECK-LABEL: @or_and_xor_not_constant_commute2_splat(
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; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i9> [[A:%.*]], <i9 42, i9 42>
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; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i9> [[TMP1]], [[B:%.*]]
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; CHECK-NEXT: ret <2 x i9> [[XOR]]
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;
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%or = xor <2 x i9> %b, %a
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%and1 = and <2 x i9> %or, <i9 42, i9 42>
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%and2 = and <2 x i9> %b, <i9 -43, i9 -43>
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%xor = or <2 x i9> %and2, %and1
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ret <2 x i9> %xor
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}
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define <2 x i9> @or_and_xor_not_constant_commute3_splat(<2 x i9> %a, <2 x i9> %b) {
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; CHECK-LABEL: @or_and_xor_not_constant_commute3_splat(
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|
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i9> [[A:%.*]], <i9 42, i9 42>
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i9> [[TMP1]], [[B:%.*]]
|
|
; CHECK-NEXT: ret <2 x i9> [[XOR]]
|
|
;
|
|
%or = xor <2 x i9> %a, %b
|
|
%and1 = and <2 x i9> %or, <i9 42, i9 42>
|
|
%and2 = and <2 x i9> %b, <i9 -43, i9 -43>
|
|
%xor = or <2 x i9> %and2, %and1
|
|
ret <2 x i9> %xor
|
|
}
|
|
|
|
define i8 @not_or(i8 %x) {
|
|
; CHECK-LABEL: @not_or(
|
|
; CHECK-NEXT: [[NOTX:%.*]] = xor i8 [[X:%.*]], -1
|
|
; CHECK-NEXT: [[OR:%.*]] = or i8 [[NOTX]], 7
|
|
; CHECK-NEXT: ret i8 [[OR]]
|
|
;
|
|
%notx = xor i8 %x, -1
|
|
%or = or i8 %notx, 7
|
|
ret i8 %or
|
|
}
|
|
|
|
define i8 @not_or_xor(i8 %x) {
|
|
; CHECK-LABEL: @not_or_xor(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = and i8 [[X:%.*]], -8
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[TMP1]], -13
|
|
; CHECK-NEXT: ret i8 [[XOR]]
|
|
;
|
|
%notx = xor i8 %x, -1
|
|
%or = or i8 %notx, 7
|
|
%xor = xor i8 %or, 12
|
|
ret i8 %xor
|
|
}
|
|
|
|
define i8 @xor_or(i8 %x) {
|
|
; CHECK-LABEL: @xor_or(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = or i8 [[X:%.*]], 7
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i8 [[TMP1]], 32
|
|
; CHECK-NEXT: ret i8 [[OR]]
|
|
;
|
|
%xor = xor i8 %x, 32
|
|
%or = or i8 %xor, 7
|
|
ret i8 %or
|
|
}
|
|
|
|
define i8 @xor_or2(i8 %x) {
|
|
; CHECK-LABEL: @xor_or2(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = or i8 [[X:%.*]], 7
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i8 [[TMP1]], 32
|
|
; CHECK-NEXT: ret i8 [[OR]]
|
|
;
|
|
%xor = xor i8 %x, 33
|
|
%or = or i8 %xor, 7
|
|
ret i8 %or
|
|
}
|
|
|
|
define i8 @xor_or_xor(i8 %x) {
|
|
; CHECK-LABEL: @xor_or_xor(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = or i8 [[X:%.*]], 7
|
|
; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[TMP1]], 44
|
|
; CHECK-NEXT: ret i8 [[XOR2]]
|
|
;
|
|
%xor1 = xor i8 %x, 33
|
|
%or = or i8 %xor1, 7
|
|
%xor2 = xor i8 %or, 12
|
|
ret i8 %xor2
|
|
}
|
|
|
|
define i8 @or_xor_or(i8 %x) {
|
|
; CHECK-LABEL: @or_xor_or(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = or i8 [[X:%.*]], 39
|
|
; CHECK-NEXT: [[OR2:%.*]] = xor i8 [[TMP1]], 8
|
|
; CHECK-NEXT: ret i8 [[OR2]]
|
|
;
|
|
%or1 = or i8 %x, 33
|
|
%xor = xor i8 %or1, 12
|
|
%or2 = or i8 %xor, 7
|
|
ret i8 %or2
|
|
}
|
|
|
|
define i8 @test17(i8 %A, i8 %B) {
|
|
; CHECK-LABEL: @test17(
|
|
; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[A]], [[B]]
|
|
; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[TMP1]], 33
|
|
; CHECK-NEXT: [[OR:%.*]] = or i8 [[XOR1]], [[XOR2]]
|
|
; CHECK-NEXT: [[RES:%.*]] = mul i8 [[OR]], [[XOR2]]
|
|
; CHECK-NEXT: ret i8 [[RES]]
|
|
;
|
|
%xor1 = xor i8 %B, %A
|
|
%not = xor i8 %A, 33
|
|
%xor2 = xor i8 %not, %B
|
|
%or = or i8 %xor1, %xor2
|
|
%res = mul i8 %or, %xor2 ; to increase the use count for the xor
|
|
ret i8 %res
|
|
}
|
|
|
|
define i8 @test18(i8 %A, i8 %B) {
|
|
; CHECK-LABEL: @test18(
|
|
; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[A]], [[B]]
|
|
; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[TMP1]], 33
|
|
; CHECK-NEXT: [[OR:%.*]] = or i8 [[XOR2]], [[XOR1]]
|
|
; CHECK-NEXT: [[RES:%.*]] = mul i8 [[OR]], [[XOR2]]
|
|
; CHECK-NEXT: ret i8 [[RES]]
|
|
;
|
|
%xor1 = xor i8 %B, %A
|
|
%not = xor i8 %A, 33
|
|
%xor2 = xor i8 %not, %B
|
|
%or = or i8 %xor2, %xor1
|
|
%res = mul i8 %or, %xor2 ; to increase the use count for the xor
|
|
ret i8 %res
|
|
}
|
|
|
|
; ((x | y) ^ (~x | ~y)) -> ~(x ^ y)
|
|
define i32 @test19(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @test19(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
|
;
|
|
%noty = xor i32 %y, -1
|
|
%notx = xor i32 %x, -1
|
|
%or1 = or i32 %x, %y
|
|
%or2 = or i32 %notx, %noty
|
|
%xor = xor i32 %or1, %or2
|
|
ret i32 %xor
|
|
}
|
|
|
|
; ((x | y) ^ (~y | ~x)) -> ~(x ^ y)
|
|
define i32 @test20(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @test20(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
|
;
|
|
%noty = xor i32 %y, -1
|
|
%notx = xor i32 %x, -1
|
|
%or1 = or i32 %x, %y
|
|
%or2 = or i32 %noty, %notx
|
|
%xor = xor i32 %or1, %or2
|
|
ret i32 %xor
|
|
}
|
|
|
|
; ((~x | ~y) ^ (x | y)) -> ~(x ^ y)
|
|
define i32 @test21(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @test21(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
|
;
|
|
%noty = xor i32 %y, -1
|
|
%notx = xor i32 %x, -1
|
|
%or1 = or i32 %notx, %noty
|
|
%or2 = or i32 %x, %y
|
|
%xor = xor i32 %or1, %or2
|
|
ret i32 %xor
|
|
}
|
|
|
|
; ((~x | ~y) ^ (y | x)) -> ~(x ^ y)
|
|
define i32 @test22(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @test22(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[Y:%.*]], [[X:%.*]]
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
|
;
|
|
%noty = xor i32 %y, -1
|
|
%notx = xor i32 %x, -1
|
|
%or1 = or i32 %notx, %noty
|
|
%or2 = or i32 %y, %x
|
|
%xor = xor i32 %or1, %or2
|
|
ret i32 %xor
|
|
}
|
|
|
|
; (X ^ C1) | C2 --> (X | C2) ^ (C1&~C2)
|
|
define i8 @test23(i8 %A) {
|
|
; CHECK-LABEL: @test23(
|
|
; CHECK-NEXT: ret i8 -1
|
|
;
|
|
%B = or i8 %A, -2
|
|
%C = xor i8 %B, 13
|
|
%D = or i8 %C, 1
|
|
%E = xor i8 %D, 12
|
|
ret i8 %E
|
|
}
|
|
|
|
define i8 @test23v(<2 x i8> %A) {
|
|
; CHECK-LABEL: @test23v(
|
|
; CHECK-NEXT: ret i8 -1
|
|
;
|
|
%B = or <2 x i8> %A, <i8 -2, i8 0>
|
|
%CV = xor <2 x i8> %B, <i8 13, i8 13>
|
|
%C = extractelement <2 x i8> %CV, i32 0
|
|
%D = or i8 %C, 1
|
|
%E = xor i8 %D, 12
|
|
ret i8 %E
|
|
}
|
|
|
|
; ~(a | b) | (~a & b);
|
|
define i32 @PR45977_f1(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @PR45977_f1(
|
|
; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
|
|
; CHECK-NEXT: ret i32 [[NOT]]
|
|
;
|
|
%not = xor i32 %a, -1
|
|
%andnot = and i32 %not, %b
|
|
%or = or i32 %a, %b
|
|
%notor = xor i32 %or, -1
|
|
%res = or i32 %notor, %andnot
|
|
ret i32 %res
|
|
}
|
|
|
|
; (a | b) ^ (a | ~b)
|
|
define i32 @PR45977_f2(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @PR45977_f2(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], -1
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
|
;
|
|
%or = or i32 %a, %b
|
|
%not = xor i32 %b, -1
|
|
%ornot = or i32 %a, %not
|
|
%res = xor i32 %or, %ornot
|
|
ret i32 %res
|
|
}
|