355 lines
7.2 KiB
LLVM
355 lines
7.2 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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@G1 = global i32 0
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@G2 = global i32 0
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define i1 @test0(i1 %A) {
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; CHECK-LABEL: @test0(
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; CHECK-NEXT: ret i1 %A
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;
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%B = xor i1 %A, false
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ret i1 %B
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}
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define i32 @test1(i32 %A) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: ret i32 %A
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;
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%B = xor i32 %A, 0
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ret i32 %B
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}
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define i1 @test2(i1 %A) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret i1 false
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;
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%B = xor i1 %A, %A
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ret i1 %B
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}
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define i32 @test3(i32 %A) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: ret i32 0
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;
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%B = xor i32 %A, %A
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ret i32 %B
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}
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define i32 @test4(i32 %A) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: ret i32 -1
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;
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%NotA = xor i32 -1, %A
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%B = xor i32 %A, %NotA
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ret i32 %B
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}
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define i32 @test5(i32 %A) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[TMP1:%.*]] = and i32 %A, -124
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%t1 = or i32 %A, 123
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%r = xor i32 %t1, 123
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ret i32 %r
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}
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define i8 @test6(i8 %A) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: ret i8 %A
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;
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%B = xor i8 %A, 17
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%C = xor i8 %B, 17
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ret i8 %C
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}
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define i32 @test7(i32 %A, i32 %B) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[A1:%.*]] = and i32 %A, 7
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; CHECK-NEXT: [[B1:%.*]] = and i32 %B, 128
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; CHECK-NEXT: [[C11:%.*]] = or i32 [[A1]], [[B1]]
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; CHECK-NEXT: ret i32 [[C11]]
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;
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%A1 = and i32 %A, 7
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%B1 = and i32 %B, 128
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%C1 = xor i32 %A1, %B1
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ret i32 %C1
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}
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define i8 @test8(i1 %c) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: br i1 %c, label %False, label %True
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; CHECK: True:
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; CHECK-NEXT: ret i8 1
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; CHECK: False:
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; CHECK-NEXT: ret i8 3
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;
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%d = xor i1 %c, true
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br i1 %d, label %True, label %False
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True:
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ret i8 1
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False:
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ret i8 3
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}
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define i1 @test9(i8 %A) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i8 %A, 89
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; CHECK-NEXT: ret i1 [[C]]
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;
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%B = xor i8 %A, 123
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%C = icmp eq i8 %B, 34
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ret i1 %C
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}
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define <2 x i1> @test9vec(<2 x i8> %a) {
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; CHECK-LABEL: @test9vec(
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; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i8> %a, <i8 89, i8 89>
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%b = xor <2 x i8> %a, <i8 123, i8 123>
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%c = icmp eq <2 x i8> %b, <i8 34, i8 34>
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ret <2 x i1> %c
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}
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define i8 @test10(i8 %A) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[B:%.*]] = and i8 %A, 3
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; CHECK-NEXT: [[C1:%.*]] = or i8 [[B]], 4
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; CHECK-NEXT: ret i8 [[C1]]
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;
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%B = and i8 %A, 3
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%C = xor i8 %B, 4
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ret i8 %C
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}
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define i8 @test11(i8 %A) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[B:%.*]] = and i8 %A, -13
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; CHECK-NEXT: [[TMP1:%.*]] = or i8 [[B]], 8
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; CHECK-NEXT: ret i8 [[TMP1]]
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;
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%B = or i8 %A, 12
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%C = xor i8 %B, 4
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ret i8 %C
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}
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define i1 @test12(i8 %A) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[C:%.*]] = icmp ne i8 %A, 4
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; CHECK-NEXT: ret i1 [[C]]
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;
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%B = xor i8 %A, 4
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%c = icmp ne i8 %B, 0
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ret i1 %c
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}
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define <2 x i1> @test12vec(<2 x i8> %a) {
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; CHECK-LABEL: @test12vec(
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; CHECK-NEXT: [[C:%.*]] = icmp ne <2 x i8> %a, <i8 4, i8 4>
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%b = xor <2 x i8> %a, <i8 4, i8 4>
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%c = icmp ne <2 x i8> %b, zeroinitializer
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ret <2 x i1> %c
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}
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define i1 @test13(i8 %A, i8 %B) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 %A, %B
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%C = icmp ult i8 %A, %B
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%D = icmp ugt i8 %A, %B
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%E = xor i1 %C, %D
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ret i1 %E
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}
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define i1 @test14(i8 %A, i8 %B) {
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; CHECK-LABEL: @test14(
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; CHECK-NEXT: ret i1 true
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;
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%C = icmp eq i8 %A, %B
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%D = icmp ne i8 %B, %A
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%E = xor i1 %C, %D
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ret i1 %E
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}
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define i32 @test15(i32 %A) {
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; CHECK-LABEL: @test15(
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; CHECK-NEXT: [[C:%.*]] = sub i32 0, %A
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = add i32 %A, -1
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%C = xor i32 %B, -1
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ret i32 %C
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}
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define i32 @test16(i32 %A) {
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; CHECK-LABEL: @test16(
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; CHECK-NEXT: [[C:%.*]] = sub i32 -124, %A
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = add i32 %A, 123
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%C = xor i32 %B, -1
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ret i32 %C
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}
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define i32 @test17(i32 %A) {
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; CHECK-LABEL: @test17(
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; CHECK-NEXT: [[C:%.*]] = add i32 %A, -124
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = sub i32 123, %A
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%C = xor i32 %B, -1
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ret i32 %C
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}
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define i32 @test18(i32 %A) {
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; CHECK-LABEL: @test18(
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; CHECK-NEXT: [[C:%.*]] = add i32 %A, 124
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = xor i32 %A, -1
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%C = sub i32 123, %B
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ret i32 %C
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}
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define i32 @test19(i32 %A, i32 %B) {
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; CHECK-LABEL: @test19(
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; CHECK-NEXT: ret i32 %B
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;
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%C = xor i32 %A, %B
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%D = xor i32 %C, %A
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ret i32 %D
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}
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define void @test20(i32 %A, i32 %B) {
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; CHECK-LABEL: @test20(
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; CHECK-NEXT: store i32 %B, i32* @G1, align 4
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; CHECK-NEXT: store i32 %A, i32* @G2, align 4
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; CHECK-NEXT: ret void
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;
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%t2 = xor i32 %B, %A
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%t5 = xor i32 %t2, %B
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%t8 = xor i32 %t5, %t2
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store i32 %t8, i32* @G1
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store i32 %t5, i32* @G2
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ret void
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}
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define i32 @test21(i1 %C, i32 %A, i32 %B) {
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; CHECK-LABEL: @test21(
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; CHECK-NEXT: [[D:%.*]] = select i1 %C, i32 %B, i32 %A
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; CHECK-NEXT: ret i32 [[D]]
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;
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%C2 = xor i1 %C, true
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%D = select i1 %C2, i32 %A, i32 %B
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ret i32 %D
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}
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define i32 @test22(i1 %X) {
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; CHECK-LABEL: @test22(
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; CHECK-NEXT: [[Z:%.*]] = zext i1 %X to i32
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%Y = xor i1 %X, true
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%Z = zext i1 %Y to i32
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%Q = xor i32 %Z, 1
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ret i32 %Q
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}
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; Look through a zext between xors.
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define i32 @fold_zext_xor_sandwich(i1 %X) {
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; CHECK-LABEL: @fold_zext_xor_sandwich(
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; CHECK-NEXT: [[Z:%.*]] = zext i1 %X to i32
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; CHECK-NEXT: [[Q:%.*]] = xor i32 [[Z]], 3
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; CHECK-NEXT: ret i32 [[Q]]
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;
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%Y = xor i1 %X, true
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%Z = zext i1 %Y to i32
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%Q = xor i32 %Z, 2
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ret i32 %Q
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}
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define <2 x i32> @fold_zext_xor_sandwich_vec(<2 x i1> %X) {
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; CHECK-LABEL: @fold_zext_xor_sandwich_vec(
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; CHECK-NEXT: [[Z:%.*]] = zext <2 x i1> %X to <2 x i32>
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; CHECK-NEXT: [[Q:%.*]] = xor <2 x i32> [[Z]], <i32 3, i32 3>
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; CHECK-NEXT: ret <2 x i32> [[Q]]
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;
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%Y = xor <2 x i1> %X, <i1 true, i1 true>
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%Z = zext <2 x i1> %Y to <2 x i32>
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%Q = xor <2 x i32> %Z, <i32 2, i32 2>
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ret <2 x i32> %Q
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}
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define i1 @test23(i32 %a, i32 %b) {
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; CHECK-LABEL: @test23(
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; CHECK-NEXT: [[T4:%.*]] = icmp eq i32 %b, 0
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; CHECK-NEXT: ret i1 [[T4]]
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;
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%t2 = xor i32 %b, %a
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%t4 = icmp eq i32 %t2, %a
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ret i1 %t4
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}
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define i1 @test24(i32 %c, i32 %d) {
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; CHECK-LABEL: @test24(
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; CHECK-NEXT: [[T4:%.*]] = icmp ne i32 %d, 0
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; CHECK-NEXT: ret i1 [[T4]]
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;
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%t2 = xor i32 %d, %c
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%t4 = icmp ne i32 %t2, %c
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ret i1 %t4
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}
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define i32 @test25(i32 %g, i32 %h) {
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; CHECK-LABEL: @test25(
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; CHECK-NEXT: [[T4:%.*]] = and i32 %h, %g
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; CHECK-NEXT: ret i32 [[T4]]
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;
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%h2 = xor i32 %h, -1
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%t2 = and i32 %h2, %g
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%t4 = xor i32 %t2, %g
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ret i32 %t4
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}
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define i32 @test26(i32 %a, i32 %b) {
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; CHECK-LABEL: @test26(
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; CHECK-NEXT: [[T4:%.*]] = and i32 %b, %a
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; CHECK-NEXT: ret i32 [[T4]]
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;
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%b2 = xor i32 %b, -1
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%t2 = xor i32 %a, %b2
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%t4 = and i32 %t2, %a
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ret i32 %t4
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}
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define i32 @test27(i32 %b, i32 %c, i32 %d) {
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; CHECK-LABEL: @test27(
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; CHECK-NEXT: [[T6:%.*]] = icmp eq i32 %b, %c
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; CHECK-NEXT: [[T7:%.*]] = zext i1 [[T6]] to i32
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; CHECK-NEXT: ret i32 [[T7]]
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;
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%t2 = xor i32 %d, %b
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%t5 = xor i32 %d, %c
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%t6 = icmp eq i32 %t2, %t5
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%t7 = zext i1 %t6 to i32
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ret i32 %t7
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}
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define i32 @test28(i32 %indvar) {
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; CHECK-LABEL: @test28(
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; CHECK-NEXT: [[T214:%.*]] = add i32 %indvar, 1
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; CHECK-NEXT: ret i32 [[T214]]
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;
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%t7 = add i32 %indvar, -2147483647
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%t214 = xor i32 %t7, -2147483648
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ret i32 %t214
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}
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