1; Tests to make sure elimination of casts is working correctly
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4define i64 @test_sext_zext(i16 %A) {
5        %c1 = zext i16 %A to i32                ; <i32> [#uses=1]
6        %c2 = sext i32 %c1 to i64               ; <i64> [#uses=1]
7        ret i64 %c2
8
9; CHECK-LABEL: @test_sext_zext
10; CHECK-NOT: %c1
11; CHECK: %c2 = zext i16 %A to i64
12; CHECK: ret i64 %c2
13}
14
15define <2 x i64> @test2(<2 x i1> %A) {
16  %xor = xor <2 x i1> %A, <i1 true, i1 true>
17  %zext = zext <2 x i1> %xor to <2 x i64>
18  ret <2 x i64> %zext
19
20; CHECK-LABEL: @test2
21; CHECK-NEXT: zext <2 x i1> %A to <2 x i64>
22; CHECK-NEXT: xor <2 x i64> %1, <i64 1, i64 1>
23}
24
25define <2 x i64> @test3(<2 x i64> %A) {
26  %trunc = trunc <2 x i64> %A to <2 x i32>
27  %and = and <2 x i32> %trunc, <i32 23, i32 42>
28  %zext = zext <2 x i32> %and to <2 x i64>
29  ret <2 x i64> %zext
30
31; CHECK-LABEL: @test3
32; CHECK-NEXT: and <2 x i64> %A, <i64 23, i64 42>
33}
34
35define <2 x i64> @test4(<2 x i64> %A) {
36  %trunc = trunc <2 x i64> %A to <2 x i32>
37  %and = and <2 x i32> %trunc, <i32 23, i32 42>
38  %xor = xor <2 x i32> %and, <i32 23, i32 42>
39  %zext = zext <2 x i32> %xor to <2 x i64>
40  ret <2 x i64> %zext
41
42; CHECK-LABEL: @test4
43; CHECK-NEXT: xor <2 x i64> %A, <i64 4294967295, i64 4294967295>
44; CHECK-NEXT: and <2 x i64> %1, <i64 23, i64 42>
45}
46