1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4declare void @use_f32(float)
5declare void @use_v4f32(<4 x float>)
6
7define <4 x float> @bitcast_inselt(i32 %x, <4 x i32> %v) {
8; CHECK-LABEL: @bitcast_inselt(
9; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x i32> [[V:%.*]], i32 [[X:%.*]], i32 0
10; CHECK-NEXT:    [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
11; CHECK-NEXT:    ret <4 x float> [[R]]
12;
13  %xf = bitcast i32 %x to float
14  %vf = bitcast <4 x i32> %v to <4 x float>
15  %r = insertelement <4 x float> %vf, float %xf, i32 0
16  ret <4 x float> %r
17}
18
19define <4 x float> @bitcast_inselt_use1(i32 %x, <4 x i32> %v) {
20; CHECK-LABEL: @bitcast_inselt_use1(
21; CHECK-NEXT:    [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
22; CHECK-NEXT:    call void @use_f32(float [[XF]])
23; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x i32> [[V:%.*]], i32 [[X]], i32 1
24; CHECK-NEXT:    [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
25; CHECK-NEXT:    ret <4 x float> [[R]]
26;
27  %xf = bitcast i32 %x to float
28  call void @use_f32(float %xf)
29  %vf = bitcast <4 x i32> %v to <4 x float>
30  %r = insertelement <4 x float> %vf, float %xf, i32 1
31  ret <4 x float> %r
32}
33
34define <4 x float> @bitcast_inselt_use2(i32 %x, <4 x i32> %v, i32 %index) {
35; CHECK-LABEL: @bitcast_inselt_use2(
36; CHECK-NEXT:    [[VF:%.*]] = bitcast <4 x i32> [[V:%.*]] to <4 x float>
37; CHECK-NEXT:    call void @use_v4f32(<4 x float> [[VF]])
38; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x i32> [[V]], i32 [[X:%.*]], i32 [[INDEX:%.*]]
39; CHECK-NEXT:    [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
40; CHECK-NEXT:    ret <4 x float> [[R]]
41;
42  %xf = bitcast i32 %x to float
43  %vf = bitcast <4 x i32> %v to <4 x float>
44  call void @use_v4f32(<4 x float> %vf)
45  %r = insertelement <4 x float> %vf, float %xf, i32 %index
46  ret <4 x float> %r
47}
48
49; Negative test - 2 extra uses would require an extra instruction.
50
51define <4 x float> @bitcast_inselt_use3(i32 %x, <4 x i32> %v) {
52; CHECK-LABEL: @bitcast_inselt_use3(
53; CHECK-NEXT:    [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
54; CHECK-NEXT:    call void @use_f32(float [[XF]])
55; CHECK-NEXT:    [[VF:%.*]] = bitcast <4 x i32> [[V:%.*]] to <4 x float>
56; CHECK-NEXT:    call void @use_v4f32(<4 x float> [[VF]])
57; CHECK-NEXT:    [[R:%.*]] = insertelement <4 x float> [[VF]], float [[XF]], i32 0
58; CHECK-NEXT:    ret <4 x float> [[R]]
59;
60  %xf = bitcast i32 %x to float
61  call void @use_f32(float %xf)
62  %vf = bitcast <4 x i32> %v to <4 x float>
63  call void @use_v4f32(<4 x float> %vf)
64  %r = insertelement <4 x float> %vf, float %xf, i32 0
65  ret <4 x float> %r
66}
67
68; Negative test - wrong source type for vector.
69
70define <2 x float> @bitcast_inselt_wrong_bitcast1(i32 %x, i64 %notv) {
71; CHECK-LABEL: @bitcast_inselt_wrong_bitcast1(
72; CHECK-NEXT:    [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
73; CHECK-NEXT:    [[VF:%.*]] = bitcast i64 [[NOTV:%.*]] to <2 x float>
74; CHECK-NEXT:    [[R:%.*]] = insertelement <2 x float> [[VF]], float [[XF]], i32 0
75; CHECK-NEXT:    ret <2 x float> [[R]]
76;
77  %xf = bitcast i32 %x to float
78  %vf = bitcast i64 %notv to <2 x float>
79  %r = insertelement <2 x float> %vf, float %xf, i32 0
80  ret <2 x float> %r
81}
82
83; Negative test - wrong source type for scalar.
84
85define <2 x float> @bitcast_inselt_wrong_bitcast2(<2 x i16> %notscalar, <2 x i32> %v) {
86; CHECK-LABEL: @bitcast_inselt_wrong_bitcast2(
87; CHECK-NEXT:    [[XF:%.*]] = bitcast <2 x i16> [[NOTSCALAR:%.*]] to float
88; CHECK-NEXT:    [[VF:%.*]] = bitcast <2 x i32> [[V:%.*]] to <2 x float>
89; CHECK-NEXT:    [[R:%.*]] = insertelement <2 x float> [[VF]], float [[XF]], i32 0
90; CHECK-NEXT:    ret <2 x float> [[R]]
91;
92  %xf = bitcast <2 x i16> %notscalar to float
93  %vf = bitcast <2 x i32> %v to <2 x float>
94  %r = insertelement <2 x float> %vf, float %xf, i32 0
95  ret <2 x float> %r
96}
97