mirror of
https://github.com/RPCS3/llvm-mirror.git
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a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
417 lines
9.9 KiB
LLVM
417 lines
9.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -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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define i32 @test5(i32 %x, i32 %y) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: ret i32 -1
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;
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%and = and i32 %x, %y
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%not = xor i32 %and, -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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define i32 @test6(i32 %x, i32 %y) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: ret i32 -1
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;
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%and = and i32 %x, %y
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%not = xor i32 %and, -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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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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define i32 @test10(i32 %A, i32 %B) {
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; CHECK-LABEL: @test10(
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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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%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: 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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%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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; (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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define i32 @test16(i32 %a, i32 %b) {
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; CHECK-LABEL: @test16(
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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 i8 @not_or(i8 %x) {
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; CHECK-LABEL: @not_or(
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; CHECK-NEXT: [[NOTX:%.*]] = or i8 [[X:%.*]], 7
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; CHECK-NEXT: [[OR:%.*]] = xor i8 [[NOTX]], -8
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; CHECK-NEXT: ret i8 [[OR]]
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;
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%notx = xor i8 %x, -1
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%or = or i8 %notx, 7
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ret i8 %or
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}
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define i8 @not_or_xor(i8 %x) {
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; CHECK-LABEL: @not_or_xor(
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; CHECK-NEXT: [[NOTX:%.*]] = or i8 [[X:%.*]], 7
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; CHECK-NEXT: [[XOR:%.*]] = xor i8 [[NOTX]], -12
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; CHECK-NEXT: ret i8 [[XOR]]
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;
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%notx = xor i8 %x, -1
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%or = or i8 %notx, 7
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%xor = xor i8 %or, 12
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ret i8 %xor
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}
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define i8 @xor_or(i8 %x) {
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; CHECK-LABEL: @xor_or(
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; CHECK-NEXT: [[XOR:%.*]] = or i8 [[X:%.*]], 7
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; CHECK-NEXT: [[OR:%.*]] = xor i8 [[XOR]], 32
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; CHECK-NEXT: ret i8 [[OR]]
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;
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%xor = xor i8 %x, 32
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%or = or i8 %xor, 7
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ret i8 %or
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}
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define i8 @xor_or2(i8 %x) {
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; CHECK-LABEL: @xor_or2(
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; CHECK-NEXT: [[XOR:%.*]] = or i8 [[X:%.*]], 7
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; CHECK-NEXT: [[OR:%.*]] = xor i8 [[XOR]], 32
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; CHECK-NEXT: ret i8 [[OR]]
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;
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%xor = xor i8 %x, 33
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%or = or i8 %xor, 7
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ret i8 %or
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}
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define i8 @xor_or_xor(i8 %x) {
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; CHECK-LABEL: @xor_or_xor(
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; CHECK-NEXT: [[XOR1:%.*]] = or i8 [[X:%.*]], 7
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; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[XOR1]], 44
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; CHECK-NEXT: ret i8 [[XOR2]]
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;
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%xor1 = xor i8 %x, 33
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%or = or i8 %xor1, 7
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%xor2 = xor i8 %or, 12
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ret i8 %xor2
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}
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define i8 @or_xor_or(i8 %x) {
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; CHECK-LABEL: @or_xor_or(
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; CHECK-NEXT: [[XOR:%.*]] = or i8 [[X:%.*]], 39
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; CHECK-NEXT: [[OR2:%.*]] = xor i8 [[XOR]], 8
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; CHECK-NEXT: ret i8 [[OR2]]
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;
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%or1 = or i8 %x, 33
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%xor = xor i8 %or1, 12
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%or2 = or i8 %xor, 7
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ret i8 %or2
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}
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define i8 @test17(i8 %A, i8 %B) {
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; CHECK-LABEL: @test17(
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; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[NOT:%.*]] = xor i8 [[A]], 33
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; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[NOT]], [[B]]
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; CHECK-NEXT: [[OR:%.*]] = or i8 [[XOR1]], 33
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; CHECK-NEXT: [[RES:%.*]] = mul i8 [[OR]], [[XOR2]]
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; CHECK-NEXT: ret i8 [[RES]]
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;
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%xor1 = xor i8 %B, %A
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%not = xor i8 %A, 33
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%xor2 = xor i8 %not, %B
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%or = or i8 %xor1, %xor2
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%res = mul i8 %or, %xor2 ; to increase the use count for the xor
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ret i8 %res
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}
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define i8 @test18(i8 %A, i8 %B) {
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; CHECK-LABEL: @test18(
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; CHECK-NEXT: [[XOR1:%.*]] = xor i8 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[NOT:%.*]] = xor i8 [[A]], 33
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; CHECK-NEXT: [[XOR2:%.*]] = xor i8 [[NOT]], [[B]]
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; CHECK-NEXT: [[OR:%.*]] = or i8 [[XOR1]], 33
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; CHECK-NEXT: [[RES:%.*]] = mul i8 [[OR]], [[XOR2]]
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; CHECK-NEXT: ret i8 [[RES]]
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;
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%xor1 = xor i8 %B, %A
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%not = xor i8 %A, 33
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%xor2 = xor i8 %not, %B
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%or = or i8 %xor2, %xor1
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%res = mul i8 %or, %xor2 ; to increase the use count for the xor
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ret i8 %res
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}
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; ((x | y) ^ (~x | ~y)) -> ~(x ^ y)
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define i32 @test19(i32 %x, i32 %y) {
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; CHECK-LABEL: @test19(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
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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, %y
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%or2 = or i32 %notx, %noty
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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) ^ (~y | ~x)) -> ~(x ^ y)
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define i32 @test20(i32 %x, i32 %y) {
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; CHECK-LABEL: @test20(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
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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, %y
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%or2 = or i32 %noty, %notx
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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 @test21(i32 %x, i32 %y) {
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; CHECK-LABEL: @test21(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
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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 %notx, %noty
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%or2 = or i32 %x, %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) ^ (y | x)) -> ~(x ^ y)
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define i32 @test22(i32 %x, i32 %y) {
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; CHECK-LABEL: @test22(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
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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 %notx, %noty
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%or2 = or i32 %y, %x
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%xor = xor i32 %or1, %or2
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ret i32 %xor
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}
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