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comparison llvm/test/Transforms/Reassociate/inverses.ll @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children 2e18cbf3894f
comparison
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147:c2174574ed3a 150:1d019706d866
1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -reassociate -die -S | FileCheck %s
3
4 ; (A&B)&~A == 0
5 define i32 @test1(i32 %a, i32 %b) {
6 ; CHECK-LABEL: @test1(
7 ; CHECK-NEXT: ret i32 0
8 ;
9 %t2 = and i32 %b, %a
10 %t4 = xor i32 %a, -1
11 %t5 = and i32 %t2, %t4
12 ret i32 %t5
13 }
14
15 define <2 x i32> @not_op_vec_undef(<2 x i32> %a, <2 x i32> %b) {
16 ; CHECK-LABEL: @not_op_vec_undef(
17 ; CHECK-NEXT: ret <2 x i32> zeroinitializer
18 ;
19 %t2 = and <2 x i32> %b, %a
20 %t4 = xor <2 x i32> %a, <i32 -1, i32 undef>
21 %t5 = and <2 x i32> %t2, %t4
22 ret <2 x i32> %t5
23 }
24
25 ; A&~A == 0
26 define i32 @test2(i32 %a, i32 %b) {
27 ; CHECK-LABEL: @test2(
28 ; CHECK-NEXT: ret i32 0
29 ;
30 %t1 = and i32 %a, 1234
31 %t2 = and i32 %b, %t1
32 %t4 = xor i32 %a, -1
33 %t5 = and i32 %t2, %t4
34 ret i32 %t5
35 }
36
37 ; (b+(a+1234))+-a -> b+1234
38 define i32 @test3(i32 %b, i32 %a) {
39 ; CHECK-LABEL: @test3(
40 ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1234
41 ; CHECK-NEXT: ret i32 [[T5]]
42 ;
43 %t1 = add i32 %a, 1234
44 %t2 = add i32 %b, %t1
45 %t4 = sub i32 0, %a
46 %t5 = add i32 %t2, %t4
47 ret i32 %t5
48 }
49
50 ; (b+(a+1234))+~a -> b+1233
51 define i32 @test4(i32 %b, i32 %a) {
52 ; CHECK-LABEL: @test4(
53 ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1233
54 ; CHECK-NEXT: ret i32 [[T5]]
55 ;
56 %t1 = add i32 %a, 1234
57 %t2 = add i32 %b, %t1
58 %t4 = xor i32 %a, -1
59 %t5 = add i32 %t2, %t4
60 ret i32 %t5
61 }
62