forked from OSchip/llvm-project
606 lines
14 KiB
LLVM
606 lines
14 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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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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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 = or i32 %A, 0
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ret i32 %B
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}
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define i32 @test2(i32 %A) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret i32 -1
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;
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%B = or i32 %A, -1
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ret i32 %B
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}
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define i8 @test2a(i8 %A) {
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; CHECK-LABEL: @test2a(
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; CHECK-NEXT: ret i8 -1
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;
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%B = or i8 %A, -1
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ret i8 %B
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}
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define i1 @test3(i1 %A) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: ret i1 %A
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;
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%B = or i1 %A, false
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ret i1 %B
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}
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define i1 @test4(i1 %A) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: ret i1 true
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;
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%B = or i1 %A, true
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ret i1 %B
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}
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define i1 @test5(i1 %A) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: ret i1 %A
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;
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%B = or i1 %A, %A
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ret i1 %B
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}
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define i32 @test6(i32 %A) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: ret i32 %A
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;
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%B = or i32 %A, %A
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ret i32 %B
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}
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; A | ~A == -1
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define i32 @test7(i32 %A) {
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; CHECK-LABEL: @test7(
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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 = or i32 %A, %NotA
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ret i32 %B
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}
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define i8 @test8(i8 %A) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: ret i8 -1
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;
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%B = or i8 %A, -2
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%C = or i8 %B, 1
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ret i8 %C
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}
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; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2)
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define i8 @test9(i8 %A, i8 %B) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: ret i8 -1
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;
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%C = or i8 %A, 1
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%D = or i8 %B, -2
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%E = or i8 %C, %D
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ret i8 %E
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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: ret i8 -2
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;
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%B = or i8 %A, 1
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%C = and i8 %B, -2
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; (X & C1) | C2 --> (X | C2) & (C1|C2)
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%D = or i8 %C, -2
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ret i8 %D
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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: ret i8 -1
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;
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%B = or i8 %A, -2
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%C = xor i8 %B, 13
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; (X ^ C1) | C2 --> (X | C2) ^ (C1&~C2)
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%D = or i8 %C, 1
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%E = xor i8 %D, 12
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ret i8 %E
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}
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define i32 @test12(i32 %A) {
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; Should be eliminated
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[C:%.*]] = and i32 %A, 8
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = or i32 %A, 4
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%C = and i32 %B, 8
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ret i32 %C
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}
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define i32 @test13(i32 %A) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: ret i32 8
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;
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%B = or i32 %A, 12
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; Always equal to 8
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%C = and i32 %B, 8
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ret i32 %C
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}
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define i1 @test14(i32 %A, i32 %B) {
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; CHECK-LABEL: @test14(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32 %A, %B
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%C1 = icmp ult i32 %A, %B
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%C2 = icmp ugt i32 %A, %B
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; (A < B) | (A > B) === A != B
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%D = or i1 %C1, %C2
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ret i1 %D
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}
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define i1 @test15(i32 %A, i32 %B) {
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; CHECK-LABEL: @test15(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i32 %A, %B
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%C1 = icmp ult i32 %A, %B
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%C2 = icmp eq i32 %A, %B
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; (A < B) | (A == B) === A <= B
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%D = or i1 %C1, %C2
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ret i1 %D
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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: ret i32 %A
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;
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%B = and i32 %A, 1
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; -2 = ~1
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%C = and i32 %A, -2
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; %D = and int %B, -1 == %B
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%D = or i32 %B, %C
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ret i32 %D
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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: [[D:%.*]] = and i32 %A, 5
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; CHECK-NEXT: ret i32 [[D]]
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;
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%B = and i32 %A, 1
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%C = and i32 %A, 4
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; %D = and int %B, 5
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%D = or i32 %B, %C
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ret i32 %D
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}
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define i1 @test18(i32 %A) {
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; CHECK-LABEL: @test18(
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; CHECK-NEXT: [[A_OFF:%.*]] = add i32 %A, -50
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[A_OFF]], 49
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%B = icmp sge i32 %A, 100
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%C = icmp slt i32 %A, 50
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;; (A-50) >u 50
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%D = or i1 %B, %C
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ret i1 %D
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}
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define i1 @test19(i32 %A) {
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; CHECK-LABEL: @test19(
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; CHECK-NEXT: [[TMP1:%.*]] = or i32 %A, 1
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 51
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; CHECK-NEXT: ret i1 [[TMP2]]
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;
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%B = icmp eq i32 %A, 50
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%C = icmp eq i32 %A, 51
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;; (A&-2) == 50
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%D = or i1 %B, %C
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ret i1 %D
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}
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define i32 @test20(i32 %x) {
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; CHECK-LABEL: @test20(
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; CHECK-NEXT: ret i32 %x
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;
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%y = and i32 %x, 123
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%z = or i32 %y, %x
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ret i32 %z
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}
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define i32 @test21(i32 %tmp.1) {
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; CHECK-LABEL: @test21(
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; CHECK-NEXT: [[TMP_1_MASK1:%.*]] = add i32 %tmp.1, 2
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; CHECK-NEXT: ret i32 [[TMP_1_MASK1]]
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;
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%tmp.1.mask1 = add i32 %tmp.1, 2
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%tmp.3 = and i32 %tmp.1.mask1, -2
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%tmp.5 = and i32 %tmp.1, 1
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;; add tmp.1, 2
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%tmp.6 = or i32 %tmp.5, %tmp.3
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ret i32 %tmp.6
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}
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define i32 @test22(i32 %B) {
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; CHECK-LABEL: @test22(
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; CHECK-NEXT: ret i32 %B
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;
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%ELIM41 = and i32 %B, 1
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%ELIM7 = and i32 %B, -2
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%ELIM5 = or i32 %ELIM41, %ELIM7
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ret i32 %ELIM5
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}
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define i16 @test23(i16 %A) {
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; CHECK-LABEL: @test23(
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; CHECK-NEXT: [[B:%.*]] = lshr i16 %A, 1
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; CHECK-NEXT: [[D:%.*]] = xor i16 [[B]], -24575
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; CHECK-NEXT: ret i16 [[D]]
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;
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%B = lshr i16 %A, 1
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;; fold or into xor
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%C = or i16 %B, -32768
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%D = xor i16 %C, 8193
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ret i16 %D
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}
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; PR1738
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define i1 @test24(double %X, double %Y) {
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; CHECK-LABEL: @test24(
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; CHECK-NEXT: [[TMP1:%.*]] = fcmp uno double %Y, %X
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%tmp9 = fcmp uno double %X, 0.000000e+00
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%tmp13 = fcmp uno double %Y, 0.000000e+00
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%bothcond = or i1 %tmp13, %tmp9
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ret i1 %bothcond
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}
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; PR3266 & PR5276
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define i1 @test25(i32 %A, i32 %B) {
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; CHECK-LABEL: @test25(
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; CHECK-NEXT: [[NOTLHS:%.*]] = icmp ne i32 %A, 0
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; CHECK-NEXT: [[NOTRHS:%.*]] = icmp ne i32 %B, 57
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; CHECK-NEXT: [[F:%.*]] = and i1 [[NOTRHS]], [[NOTLHS]]
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; CHECK-NEXT: ret i1 [[F]]
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;
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%C = icmp eq i32 %A, 0
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%D = icmp eq i32 %B, 57
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%E = or i1 %C, %D
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%F = xor i1 %E, -1
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ret i1 %F
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}
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; PR5634
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define i1 @test26(i32 %A, i32 %B) {
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; CHECK-LABEL: @test26(
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; CHECK-NEXT: [[TMP1:%.*]] = or i32 %A, %B
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
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; CHECK-NEXT: ret i1 [[TMP2]]
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;
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%C1 = icmp eq i32 %A, 0
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%C2 = icmp eq i32 %B, 0
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; (A == 0) & (A == 0) --> (A|B) == 0
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%D = and i1 %C1, %C2
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ret i1 %D
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}
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define i1 @test27(i32* %A, i32* %B) {
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; CHECK-LABEL: @test27(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32* %A, null
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32* %B, null
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; CHECK-NEXT: [[E:%.*]] = and i1 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: ret i1 [[E]]
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;
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%C1 = ptrtoint i32* %A to i32
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%C2 = ptrtoint i32* %B to i32
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%D = or i32 %C1, %C2
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%E = icmp eq i32 %D, 0
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ret i1 %E
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}
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; PR5634
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define i1 @test28(i32 %A, i32 %B) {
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; CHECK-LABEL: @test28(
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; CHECK-NEXT: [[TMP1:%.*]] = or i32 %A, %B
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 0
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; CHECK-NEXT: ret i1 [[TMP2]]
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;
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%C1 = icmp ne i32 %A, 0
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%C2 = icmp ne i32 %B, 0
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; (A != 0) | (A != 0) --> (A|B) != 0
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%D = or i1 %C1, %C2
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ret i1 %D
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}
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define i1 @test29(i32* %A, i32* %B) {
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; CHECK-LABEL: @test29(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32* %A, null
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32* %B, null
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; CHECK-NEXT: [[E:%.*]] = or i1 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: ret i1 [[E]]
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;
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%C1 = ptrtoint i32* %A to i32
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%C2 = ptrtoint i32* %B to i32
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%D = or i32 %C1, %C2
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%E = icmp ne i32 %D, 0
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ret i1 %E
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}
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; PR4216
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define i32 @test30(i32 %A) {
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; CHECK-LABEL: @test30(
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; CHECK-NEXT: [[D:%.*]] = and i32 %A, -58312
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; CHECK-NEXT: [[E:%.*]] = or i32 [[D]], 32962
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; CHECK-NEXT: ret i32 [[E]]
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;
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%B = or i32 %A, 32962
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%C = and i32 %A, -65536
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%D = and i32 %B, 40186
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%E = or i32 %D, %C
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ret i32 %E
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}
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; PR4216
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define i64 @test31(i64 %A) {
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; CHECK-LABEL: @test31(
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; CHECK-NEXT: [[E:%.*]] = and i64 %A, 4294908984
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; CHECK-NEXT: [[F:%.*]] = or i64 [[E]], 32962
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; CHECK-NEXT: ret i64 [[F]]
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;
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%B = or i64 %A, 194
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%D = and i64 %B, 250
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%C = or i64 %A, 32768
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%E = and i64 %C, 4294941696
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%F = or i64 %D, %E
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ret i64 %F
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}
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; codegen is mature enough to handle vector selects.
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define <4 x i32> @test32(<4 x i1> %and.i1352, <4 x i32> %vecinit6.i176, <4 x i32> %vecinit6.i191) {
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; CHECK-LABEL: @test32(
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; CHECK-NEXT: [[OR_I:%.*]] = select <4 x i1> %and.i1352, <4 x i32> %vecinit6.i176, <4 x i32> %vecinit6.i191
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; CHECK-NEXT: ret <4 x i32> [[OR_I]]
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;
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%and.i135 = sext <4 x i1> %and.i1352 to <4 x i32>
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%and.i129 = and <4 x i32> %vecinit6.i176, %and.i135
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%neg.i = xor <4 x i32> %and.i135, <i32 -1, i32 -1, i32 -1, i32 -1>
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%and.i = and <4 x i32> %vecinit6.i191, %neg.i
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%or.i = or <4 x i32> %and.i, %and.i129
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ret <4 x i32> %or.i
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}
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define i1 @test33(i1 %X, i1 %Y) {
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; CHECK-LABEL: @test33(
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; CHECK-NEXT: [[B:%.*]] = or i1 %X, %Y
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; CHECK-NEXT: ret i1 [[B]]
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;
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%a = or i1 %X, %Y
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%b = or i1 %a, %X
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ret i1 %b
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}
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define i32 @test34(i32 %X, i32 %Y) {
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; CHECK-LABEL: @test34(
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; CHECK-NEXT: [[B:%.*]] = or i32 %X, %Y
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; CHECK-NEXT: ret i32 [[B]]
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;
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%a = or i32 %X, %Y
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%b = or i32 %Y, %a
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ret i32 %b
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}
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define i32 @test35(i32 %a, i32 %b) {
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; CHECK-LABEL: @test35(
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; CHECK-NEXT: [[TMP1:%.*]] = or i32 %a, %b
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; CHECK-NEXT: [[TMP2:%.*]] = or i32 [[TMP1]], 1135
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%1 = or i32 %a, 1135
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%2 = or i32 %1, %b
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ret i32 %2
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}
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define i1 @test36(i32 %x) {
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; CHECK-LABEL: @test36(
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; CHECK-NEXT: [[X_OFF:%.*]] = add i32 %x, -23
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[X_OFF]], 3
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%cmp1 = icmp eq i32 %x, 23
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%cmp2 = icmp eq i32 %x, 24
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%ret1 = or i1 %cmp1, %cmp2
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%cmp3 = icmp eq i32 %x, 25
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%ret2 = or i1 %ret1, %cmp3
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ret i1 %ret2
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}
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define i32 @orsext_to_sel(i32 %x, i1 %y) {
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; CHECK-LABEL: @orsext_to_sel(
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; CHECK-NEXT: [[OR:%.*]] = select i1 %y, i32 -1, i32 %x
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%sext = sext i1 %y to i32
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%or = or i32 %sext, %x
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ret i32 %or
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}
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define i32 @orsext_to_sel_swap(i32 %x, i1 %y) {
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; CHECK-LABEL: @orsext_to_sel_swap(
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; CHECK-NEXT: [[OR:%.*]] = select i1 %y, i32 -1, i32 %x
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%sext = sext i1 %y to i32
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%or = or i32 %x, %sext
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ret i32 %or
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}
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define i32 @orsext_to_sel_multi_use(i32 %x, i1 %y) {
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; CHECK-LABEL: @orsext_to_sel_multi_use(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 %y to i32
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; CHECK-NEXT: [[OR:%.*]] = or i32 [[SEXT]], %x
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; CHECK-NEXT: [[ADD:%.*]] = add i32 [[SEXT]], [[OR]]
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; CHECK-NEXT: ret i32 [[ADD]]
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;
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%sext = sext i1 %y to i32
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%or = or i32 %sext, %x
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%add = add i32 %sext, %or
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ret i32 %add
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}
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define <2 x i32> @orsext_to_sel_vec(<2 x i32> %x, <2 x i1> %y) {
|
|
; CHECK-LABEL: @orsext_to_sel_vec(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> %y, <2 x i32> <i32 -1, i32 -1>, <2 x i32> %x
|
|
; CHECK-NEXT: ret <2 x i32> [[OR]]
|
|
;
|
|
%sext = sext <2 x i1> %y to <2 x i32>
|
|
%or = or <2 x i32> %sext, %x
|
|
ret <2 x i32> %or
|
|
}
|
|
|
|
define <2 x i132> @orsext_to_sel_vec_swap(<2 x i132> %x, <2 x i1> %y) {
|
|
; CHECK-LABEL: @orsext_to_sel_vec_swap(
|
|
; CHECK-NEXT: [[OR:%.*]] = select <2 x i1> %y, <2 x i132> <i132 -1, i132 -1>, <2 x i132> %x
|
|
; CHECK-NEXT: ret <2 x i132> [[OR]]
|
|
;
|
|
%sext = sext <2 x i1> %y to <2 x i132>
|
|
%or = or <2 x i132> %x, %sext
|
|
ret <2 x i132> %or
|
|
}
|
|
|
|
define i32 @test39(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test39(
|
|
; CHECK-NEXT: [[OR:%.*]] = or i32 %a, %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%xor = xor i32 %a, -1
|
|
%and = and i32 %xor, %b
|
|
%or = or i32 %and, %a
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test40(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test40(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 %a, -1
|
|
; CHECK-NEXT: [[OR:%.*]] = or i32 [[TMP1]], %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%and = and i32 %a, %b
|
|
%xor = xor i32 %a, -1
|
|
%or = or i32 %and, %xor
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test41(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test41(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 %a, -1
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i32 [[TMP1]], %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%and = and i32 %a, %b
|
|
%nega = xor i32 %a, -1
|
|
%xor = xor i32 %nega, %b
|
|
%or = or i32 %and, %xor
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test42(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test42(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 %a, -1
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i32 [[TMP1]], %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%nega = xor i32 %a, -1
|
|
%xor = xor i32 %nega, %b
|
|
%and = and i32 %a, %b
|
|
%or = or i32 %xor, %and
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test43(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test43(
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i32 %a, %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%neg = xor i32 %b, -1
|
|
%and = and i32 %a, %neg
|
|
%xor = xor i32 %a, %b
|
|
%or = or i32 %and, %xor
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test44(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test44(
|
|
; CHECK-NEXT: [[OR:%.*]] = xor i32 %a, %b
|
|
; CHECK-NEXT: ret i32 [[OR]]
|
|
;
|
|
%xor = xor i32 %a, %b
|
|
%neg = xor i32 %b, -1
|
|
%and = and i32 %a, %neg
|
|
%or = or i32 %xor, %and
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @test45(i32 %x, i32 %y, i32 %z) {
|
|
; CHECK-LABEL: @test45(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = and i32 %x, %z
|
|
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[TMP1]], %y
|
|
; CHECK-NEXT: ret i32 [[OR1]]
|
|
;
|
|
%or = or i32 %y, %z
|
|
%and = and i32 %x, %or
|
|
%or1 = or i32 %and, %y
|
|
ret i32 %or1
|
|
}
|
|
|
|
define i1 @test46(i8 signext %c) {
|
|
; CHECK-LABEL: @test46(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = and i8 %c, -33
|
|
; CHECK-NEXT: [[TMP2:%.*]] = add i8 [[TMP1]], -65
|
|
; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i8 [[TMP2]], 26
|
|
; CHECK-NEXT: ret i1 [[TMP3]]
|
|
;
|
|
%c.off = add i8 %c, -97
|
|
%cmp1 = icmp ult i8 %c.off, 26
|
|
%c.off17 = add i8 %c, -65
|
|
%cmp2 = icmp ult i8 %c.off17, 26
|
|
%or = or i1 %cmp1, %cmp2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @test47(i8 signext %c) {
|
|
; CHECK-LABEL: @test47(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = and i8 %c, -33
|
|
; CHECK-NEXT: [[TMP2:%.*]] = add i8 [[TMP1]], -65
|
|
; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i8 [[TMP2]], 27
|
|
; CHECK-NEXT: ret i1 [[TMP3]]
|
|
;
|
|
%c.off = add i8 %c, -65
|
|
%cmp1 = icmp ule i8 %c.off, 26
|
|
%c.off17 = add i8 %c, -97
|
|
%cmp2 = icmp ule i8 %c.off17, 26
|
|
%or = or i1 %cmp1, %cmp2
|
|
ret i1 %or
|
|
}
|
|
|
|
define i1 @test48(i64 %x, i1 %b) {
|
|
; CHECK-LABEL: @test48(
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|
|
%1 = icmp ult i64 %x, 2305843009213693952
|
|
%2 = icmp ugt i64 %x, 2305843009213693951
|
|
%.b = or i1 %2, %b
|
|
%3 = or i1 %1, %.b
|
|
ret i1 %3
|
|
}
|