xref: /llvm-project/llvm/test/Transforms/InstCombine/insertelement.ll (revision 38fffa630ee80163dc65e759392ad29798905679) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=instcombine -S | FileCheck %s
3
4define <4 x i32> @insert_known_idx(<4 x i32> %x) {
5; CHECK-LABEL: @insert_known_idx(
6; CHECK-NEXT:    [[V1:%.*]] = and <4 x i32> [[X:%.*]], <i32 poison, i32 7, i32 7, i32 7>
7; CHECK-NEXT:    [[V2:%.*]] = insertelement <4 x i32> [[V1]], i32 6, i64 0
8; CHECK-NEXT:    ret <4 x i32> [[V2]]
9;
10  %v1 = and <4 x i32> %x, <i32 7, i32 7, i32 7, i32 7>
11  %v2 = insertelement <4 x i32> %v1, i32 6, i32 0
12  %v3 = and <4 x i32> %v2, <i32 7, i32 7, i32 7, i32 7>
13  ret <4 x i32> %v3
14}
15
16define <4 x i32> @insert_unknown_idx(<4 x i32> %x, i32 %idx) {
17; CHECK-LABEL: @insert_unknown_idx(
18; CHECK-NEXT:    [[V1:%.*]] = and <4 x i32> [[X:%.*]], splat (i32 7)
19; CHECK-NEXT:    [[V2:%.*]] = insertelement <4 x i32> [[V1]], i32 6, i32 [[IDX:%.*]]
20; CHECK-NEXT:    ret <4 x i32> [[V2]]
21;
22  %v1 = and <4 x i32> %x, <i32 7, i32 7, i32 7, i32 7>
23  %v2 = insertelement <4 x i32> %v1, i32 6, i32 %idx
24  %v3 = and <4 x i32> %v2, <i32 7, i32 7, i32 7, i32 7>
25  ret <4 x i32> %v3
26}
27
28define <2 x i8> @insert_known_any_idx(<2 x i8> %xx, i8 %yy, i32 %idx) {
29; CHECK-LABEL: @insert_known_any_idx(
30; CHECK-NEXT:    ret <2 x i8> splat (i8 16)
31;
32  %x = or <2 x i8> %xx, <i8 16, i8 16>
33  %y = or i8 %yy, 16
34
35  %ins = insertelement <2 x i8> %x, i8 %y, i32 %idx
36  %r = and <2 x i8> %ins, <i8 16, i8 16>
37  ret <2 x i8> %r
38}
39
40define <2 x i8> @insert_known_any_idx_fail1(<2 x i8> %xx, i8 %yy, i32 %idx) {
41; CHECK-LABEL: @insert_known_any_idx_fail1(
42; CHECK-NEXT:    [[X:%.*]] = or <2 x i8> [[XX:%.*]], <i8 17, i8 33>
43; CHECK-NEXT:    [[Y:%.*]] = or i8 [[YY:%.*]], 16
44; CHECK-NEXT:    [[INS:%.*]] = insertelement <2 x i8> [[X]], i8 [[Y]], i32 [[IDX:%.*]]
45; CHECK-NEXT:    [[R:%.*]] = and <2 x i8> [[INS]], splat (i8 16)
46; CHECK-NEXT:    ret <2 x i8> [[R]]
47;
48  %x = or <2 x i8> %xx, <i8 17, i8 33>
49  %y = or i8 %yy, 16
50
51  %ins = insertelement <2 x i8> %x, i8 %y, i32 %idx
52  %r = and <2 x i8> %ins, <i8 16, i8 16>
53  ret <2 x i8> %r
54}
55
56
57define <2 x i8> @insert_known_any_idx_fail2(<2 x i8> %xx, i8 %yy, i32 %idx) {
58; CHECK-LABEL: @insert_known_any_idx_fail2(
59; CHECK-NEXT:    [[X:%.*]] = or <2 x i8> [[XX:%.*]], <i8 17, i8 31>
60; CHECK-NEXT:    [[Y:%.*]] = or i8 [[YY:%.*]], 15
61; CHECK-NEXT:    [[INS:%.*]] = insertelement <2 x i8> [[X]], i8 [[Y]], i32 [[IDX:%.*]]
62; CHECK-NEXT:    [[R:%.*]] = and <2 x i8> [[INS]], splat (i8 16)
63; CHECK-NEXT:    ret <2 x i8> [[R]]
64;
65  %x = or <2 x i8> %xx, <i8 17, i8 31>
66  %y = or i8 %yy, 15
67
68  %ins = insertelement <2 x i8> %x, i8 %y, i32 %idx
69  %r = and <2 x i8> %ins, <i8 16, i8 16>
70  ret <2 x i8> %r
71}
72
73