1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
5 target triple = "x86_64-unknown-linux-gnu"
7 ; Should be optimized to one and.
8 define i1 @test1(i32 %a, i32 %b) {
10 ; CHECK-NEXT: [[TMP1:%.*]] = xor i32 %a, %b
11 ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 65280
12 ; CHECK-NEXT: [[TMP:%.*]] = icmp ne i32 [[TMP2]], 0
13 ; CHECK-NEXT: ret i1 [[TMP]]
15 %tmp1 = and i32 %a, 65280
16 %tmp3 = and i32 %b, 65280
17 %tmp = icmp ne i32 %tmp1, %tmp3
21 define <2 x i1> @test1vec(<2 x i32> %a, <2 x i32> %b) {
22 ; CHECK-LABEL: @test1vec(
23 ; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> %a, %b
24 ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], <i32 65280, i32 65280>
25 ; CHECK-NEXT: [[TMP:%.*]] = icmp ne <2 x i32> [[TMP2]], zeroinitializer
26 ; CHECK-NEXT: ret <2 x i1> [[TMP]]
28 %tmp1 = and <2 x i32> %a, <i32 65280, i32 65280>
29 %tmp3 = and <2 x i32> %b, <i32 65280, i32 65280>
30 %tmp = icmp ne <2 x i32> %tmp1, %tmp3
34 define i1 @test2(i64 %A) {
35 ; CHECK-LABEL: @test2(
36 ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 %A to i8
37 ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[TMP1]], -1
38 ; CHECK-NEXT: ret i1 [[CMP]]
40 %and = and i64 %A, 128
41 %cmp = icmp eq i64 %and, 0
45 define <2 x i1> @test2vec(<2 x i64> %A) {
46 ; CHECK-LABEL: @test2vec(
47 ; CHECK-NEXT: [[TMP1:%.*]] = trunc <2 x i64> %A to <2 x i8>
48 ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> [[TMP1]], <i8 -1, i8 -1>
49 ; CHECK-NEXT: ret <2 x i1> [[CMP]]
51 %and = and <2 x i64> %A, <i64 128, i64 128>
52 %cmp = icmp eq <2 x i64> %and, zeroinitializer
56 define i1 @test3(i64 %A) {
57 ; CHECK-LABEL: @test3(
58 ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 %A to i8
59 ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[TMP1]], 0
60 ; CHECK-NEXT: ret i1 [[CMP]]
62 %and = and i64 %A, 128
63 %cmp = icmp ne i64 %and, 0
67 define <2 x i1> @test3vec(<2 x i64> %A) {
68 ; CHECK-LABEL: @test3vec(
69 ; CHECK-NEXT: [[TMP1:%.*]] = trunc <2 x i64> %A to <2 x i8>
70 ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> [[TMP1]], zeroinitializer
71 ; CHECK-NEXT: ret <2 x i1> [[CMP]]
73 %and = and <2 x i64> %A, <i64 128, i64 128>
74 %cmp = icmp ne <2 x i64> %and, zeroinitializer