1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4; insertelements should fold to shuffle
5define <4 x float> @foo(<4 x float> %x) {
6; CHECK-LABEL: @foo(
7; CHECK-NEXT:    [[INS2:%.*]] = shufflevector <4 x float> %x, <4 x float> <float undef, float 1.000000e+00, float 2.000000e+00, float undef>, <4 x i32> <i32 0, i32 5, i32 6, i32 3>
8; CHECK-NEXT:    ret <4 x float> [[INS2]]
9;
10  %ins1 = insertelement<4 x float> %x, float 1.0, i32 1
11  %ins2 = insertelement<4 x float> %ins1, float 2.0, i32 2
12  ret <4 x float> %ins2
13}
14
15; Insert of a constant is canonicalized ahead of insert of a variable.
16
17define <4 x float> @bar(<4 x float> %x, float %a) {
18; CHECK-LABEL: @bar(
19; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x float> %x, float 2.000000e+00, i32 2
20; CHECK-NEXT:    [[INS2:%.*]] = insertelement <4 x float> [[TMP1]], float %a, i32 1
21; CHECK-NEXT:    ret <4 x float> [[INS2]]
22;
23  %ins1 = insertelement<4 x float> %x, float %a, i32 1
24  %ins2 = insertelement<4 x float> %ins1, float 2.0, i32 2
25  ret <4 x float> %ins2
26}
27
28define <4 x float> @baz(<4 x float> %x, i32 %a) {
29; CHECK-LABEL: @baz(
30; CHECK-NEXT:    [[INS1:%.*]] = insertelement <4 x float> %x, float 1.000000e+00, i32 1
31; CHECK-NEXT:    [[INS2:%.*]] = insertelement <4 x float> [[INS1]], float 2.000000e+00, i32 %a
32; CHECK-NEXT:    ret <4 x float> [[INS2]]
33;
34  %ins1 = insertelement<4 x float> %x, float 1.0, i32 1
35  %ins2 = insertelement<4 x float> %ins1, float 2.0, i32 %a
36  ret <4 x float> %ins2
37}
38
39; insertelements should fold to shuffle
40define <4 x float> @bazz(<4 x float> %x, i32 %a) {
41; CHECK-LABEL: @bazz(
42; CHECK-NEXT:    [[INS1:%.*]] = insertelement <4 x float> %x, float 1.000000e+00, i32 3
43; CHECK-NEXT:    [[INS2:%.*]] = insertelement <4 x float> [[INS1]], float 5.000000e+00, i32 %a
44; CHECK-NEXT:    [[INS5:%.*]] = shufflevector <4 x float> [[INS2]], <4 x float> <float undef, float 1.000000e+00, float 2.000000e+00, float undef>, <4 x i32> <i32 0, i32 5, i32 6, i32 3>
45; CHECK-NEXT:    [[INS6:%.*]] = insertelement <4 x float> [[INS5]], float 7.000000e+00, i32 %a
46; CHECK-NEXT:    ret <4 x float> [[INS6]]
47;
48  %ins1 = insertelement<4 x float> %x, float 1.0, i32 3
49  %ins2 = insertelement<4 x float> %ins1, float 5.0, i32 %a
50  %ins3 = insertelement<4 x float> %ins2, float 3.0, i32 2
51  %ins4 = insertelement<4 x float> %ins3, float 1.0, i32 1
52  %ins5 = insertelement<4 x float> %ins4, float 2.0, i32 2
53  %ins6 = insertelement<4 x float> %ins5, float 7.0, i32 %a
54  ret <4 x float> %ins6
55}
56
57; Out of bounds index folds to undef
58define <4 x float> @bazzz(<4 x float> %x) {
59; CHECK-LABEL: @bazzz(
60; CHECK-NEXT:   ret <4 x float> <float undef, float undef, float 2.000000e+00, float undef>
61;
62  %ins1 = insertelement<4 x float> %x, float 1.0, i32 5
63  %ins2 = insertelement<4 x float> %ins1, float 2.0, i32 2
64  ret <4 x float> %ins2
65}
66
67define <4 x float> @bazzzz(<4 x float> %x) {
68; CHECK-LABEL: @bazzzz(
69; CHECK-NEXT:   ret <4 x float> <float undef, float undef, float 2.000000e+00, float undef>
70;
71  %ins1 = insertelement<4 x float> %x, float 1.0, i32 undef
72  %ins2 = insertelement<4 x float> %ins1, float 2.0, i32 2
73  ret <4 x float> %ins2
74}
75
76define <4 x float> @bazzzzz() {
77; CHECK-LABEL: @bazzzzz(
78; CHECK-NEXT:    ret <4 x float> <float 1.000000e+00, float 5.000000e+00, float 1.000000e+01, float 4.000000e+00>
79;
80  %ins1 = insertelement <4 x float> insertelement (<4 x float> <float 1.0, float 2.0, float 3.0, float undef>, float 4.0, i32 3), float 5.0, i32 1
81  %ins2 = insertelement<4 x float> %ins1, float 10.0, i32 2
82  ret <4 x float> %ins2
83}
84
85define <4 x float> @bazzzzzz(<4 x float> %x, i32 %a) {
86; CHECK-LABEL: @bazzzzzz(
87; CHECK-NEXT:    ret <4 x float> <float undef, float 5.000000e+00, float undef, float 4.000000e+00>
88;
89  %ins1 = insertelement <4 x float> insertelement (<4 x float> shufflevector (<4 x float> undef, <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0> , <4 x i32> <i32 0, i32 5, i32 undef, i32 6> ), float 4.0, i32 3), float 5.0, i32 1
90  ret <4 x float> %ins1
91}
92
93
94