1 ; RUN: opt -S -instcombine %s | FileCheck %s
3 define <1 x i8> @test1(<8 x i8> %in) {
5 ; CHECK: shufflevector <8 x i8> %in, <8 x i8> undef, <1 x i32> <i32 5>
6 %val = extractelement <8 x i8> %in, i32 5
7 %vec = insertelement <1 x i8> undef, i8 %val, i32 0
11 define <4 x i16> @test2(<8 x i16> %in, <8 x i16> %in2) {
13 ; CHECK: shufflevector <8 x i16> %in2, <8 x i16> %in, <4 x i32> <i32 11, i32 9, i32 0, i32 10>
14 %elt0 = extractelement <8 x i16> %in, i32 3
15 %elt1 = extractelement <8 x i16> %in, i32 1
16 %elt2 = extractelement <8 x i16> %in2, i32 0
17 %elt3 = extractelement <8 x i16> %in, i32 2
19 %vec.0 = insertelement <4 x i16> undef, i16 %elt0, i32 0
20 %vec.1 = insertelement <4 x i16> %vec.0, i16 %elt1, i32 1
21 %vec.2 = insertelement <4 x i16> %vec.1, i16 %elt2, i32 2
22 %vec.3 = insertelement <4 x i16> %vec.2, i16 %elt3, i32 3
27 define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) {
28 ; CHECK-LABEL: @test_vcopyq_lane_p64
29 ; CHECK-NEXT: extractelement
30 ; CHECK-NEXT: insertelement
31 ; CHECK-NEXT: ret <2 x i64> %res
32 %elt = extractelement <1 x i64> %b, i32 0
33 %res = insertelement <2 x i64> %a, i64 %elt, i32 1
37 ; PR2109: https://llvm.org/bugs/show_bug.cgi?id=2109
39 define <4 x float> @widen_extract2(<4 x float> %ins, <2 x float> %ext) {
40 ; CHECK-LABEL: @widen_extract2(
41 ; CHECK-NEXT: extractelement
42 ; CHECK-NEXT: extractelement
43 ; CHECK-NEXT: insertelement
44 ; CHECK-NEXT: insertelement
45 ; CHECK-NEXT: ret <4 x float> %i2
46 %e1 = extractelement <2 x float> %ext, i32 0
47 %e2 = extractelement <2 x float> %ext, i32 1
48 %i1 = insertelement <4 x float> %ins, float %e1, i32 1
49 %i2 = insertelement <4 x float> %i1, float %e2, i32 3
53 define <4 x float> @widen_extract3(<4 x float> %ins, <3 x float> %ext) {
54 ; CHECK-LABEL: @widen_extract3(
55 ; CHECK-NEXT: extractelement
56 ; CHECK-NEXT: extractelement
57 ; CHECK-NEXT: extractelement
58 ; CHECK-NEXT: insertelement
59 ; CHECK-NEXT: insertelement
60 ; CHECK-NEXT: insertelement
61 ; CHECK-NEXT: ret <4 x float> %i3
62 %e1 = extractelement <3 x float> %ext, i32 0
63 %e2 = extractelement <3 x float> %ext, i32 1
64 %e3 = extractelement <3 x float> %ext, i32 2
65 %i1 = insertelement <4 x float> %ins, float %e1, i32 2
66 %i2 = insertelement <4 x float> %i1, float %e2, i32 1
67 %i3 = insertelement <4 x float> %i2, float %e3, i32 0
71 define <8 x float> @too_wide(<8 x float> %ins, <2 x float> %ext) {
72 ; CHECK-LABEL: @too_wide(
73 ; CHECK-NEXT: extractelement
74 ; CHECK-NEXT: insertelement
75 ; CHECK-NEXT: ret <8 x float> %i1
76 %e1 = extractelement <2 x float> %ext, i32 0
77 %i1 = insertelement <8 x float> %ins, float %e1, i32 2