1; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
2
3@in = global float 0x400921FA00000000, align 4
4@iin = global i32 -1023, align 4
5@uin = global i32 1023, align 4
6
7declare void @foo_int32x4_t(<4 x i32>)
8
9; Test signed conversion.
10; CHECK: t1
11; CHECK-NOT: {{vdiv|vmul}}
12define void @t1() nounwind {
13entry:
14  %tmp = load i32, i32* @iin, align 4
15  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
16  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
17  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
18  %div.i = fdiv <2 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00>
19  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
20  ret void
21}
22
23declare void @foo_float32x2_t(<2 x float>)
24
25; Test unsigned conversion.
26; CHECK: t2
27; CHECK-NOT: {{vdiv|vmul}}
28define void @t2() nounwind {
29entry:
30  %tmp = load i32, i32* @uin, align 4
31  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
32  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
33  %vcvt.i = uitofp <2 x i32> %vecinit2.i to <2 x float>
34  %div.i = fdiv <2 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00>
35  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
36  ret void
37}
38
39; Test which should not fold due to non-power of 2.
40; CHECK: t3
41; CHECK: {{vdiv|vmul}}
42define void @t3() nounwind {
43entry:
44  %tmp = load i32, i32* @iin, align 4
45  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
46  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
47  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
48  %div.i = fdiv <2 x float> %vcvt.i, <float 0x401B333340000000, float 0x401B333340000000>
49  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
50  ret void
51}
52
53; Test which should not fold due to power of 2 out of range.
54; CHECK: t4
55; CHECK: {{vdiv|vmul}}
56define void @t4() nounwind {
57entry:
58  %tmp = load i32, i32* @iin, align 4
59  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
60  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
61  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
62  %div.i = fdiv <2 x float> %vcvt.i, <float 0x4200000000000000, float 0x4200000000000000>
63  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
64  ret void
65}
66
67; Test case where const is max power of 2 (i.e., 2^32).
68; CHECK: t5
69; CHECK-NOT: {{vdiv|vmul}}
70define void @t5() nounwind {
71entry:
72  %tmp = load i32, i32* @iin, align 4
73  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
74  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
75  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
76  %div.i = fdiv <2 x float> %vcvt.i, <float 0x41F0000000000000, float 0x41F0000000000000>
77  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
78  ret void
79}
80
81; Test quadword.
82; CHECK: t6
83; CHECK-NOT: {{vdiv|vmul}}
84define void @t6() nounwind {
85entry:
86  %tmp = load i32, i32* @iin, align 4
87  %vecinit.i = insertelement <4 x i32> undef, i32 %tmp, i32 0
88  %vecinit2.i = insertelement <4 x i32> %vecinit.i, i32 %tmp, i32 1
89  %vecinit4.i = insertelement <4 x i32> %vecinit2.i, i32 %tmp, i32 2
90  %vecinit6.i = insertelement <4 x i32> %vecinit4.i, i32 %tmp, i32 3
91  %vcvt.i = sitofp <4 x i32> %vecinit6.i to <4 x float>
92  %div.i = fdiv <4 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00>
93  tail call void @foo_float32x4_t(<4 x float> %div.i) nounwind
94  ret void
95}
96
97declare void @foo_float32x4_t(<4 x float>)
98
99define <4 x float> @fix_unsigned_i16_to_float(<4 x i16> %in) {
100; CHECK-LABEL: fix_unsigned_i16_to_float:
101; CHECK: vmovl.u16 [[TMP:q[0-9]+]], {{d[0-9]+}}
102; CHECK: vcvt.f32.u32 {{q[0-9]+}}, [[TMP]], #1
103
104    %conv = uitofp <4 x i16> %in to <4 x float>
105    %shift = fdiv <4 x float> %conv, <float 2.0, float 2.0, float 2.0, float 2.0>
106    ret <4 x float> %shift
107}
108
109define <4 x float> @fix_signed_i16_to_float(<4 x i16> %in) {
110; CHECK-LABEL: fix_signed_i16_to_float:
111; CHECK: vmovl.s16 [[TMP:q[0-9]+]], {{d[0-9]+}}
112; CHECK: vcvt.f32.s32 {{q[0-9]+}}, [[TMP]], #1
113
114    %conv = sitofp <4 x i16> %in to <4 x float>
115    %shift = fdiv <4 x float> %conv, <float 2.0, float 2.0, float 2.0, float 2.0>
116    ret <4 x float> %shift
117}
118
119define <2 x float> @fix_i64_to_float(<2 x i64> %in) {
120; CHECK-LABEL: fix_i64_to_float:
121; CHECK: bl
122; CHECK: bl
123
124    %conv = uitofp <2 x i64> %in to <2 x float>
125    %shift = fdiv <2 x float> %conv, <float 2.0, float 2.0>
126    ret <2 x float> %shift
127}
128
129define <2 x double> @fix_i64_to_double(<2 x i64> %in) {
130; CHECK-LABEL: fix_i64_to_double:
131; CHECK: bl
132; CHECK: bl
133
134    %conv = uitofp <2 x i64> %in to <2 x double>
135    %shift = fdiv <2 x double> %conv, <double 2.0, double 2.0>
136    ret <2 x double> %shift
137}
138
139; Don't combine with 8 lanes.  Just make sure things don't crash.
140; CHECK-LABEL: test7
141define <8 x float> @test7(<8 x i32> %in) nounwind {
142entry:
143  %vcvt.i = sitofp <8 x i32> %in to <8 x float>
144  %div.i = fdiv <8 x float> %vcvt.i, <float 8.0, float 8.0, float 8.0, float 8.0, float 8.0, float 8.0, float 8.0, float 8.0>
145  ret <8 x float> %div.i
146}
147
148; Can combine splat with an undef.
149; CHECK-LABEL: test8
150; CHECK: vcvt.f32.s32 q{{[0-9]+}}, q{{[0-9]+}}, #1
151define <4 x float> @test8(<4 x i32> %in) {
152  %vcvt.i = sitofp <4 x i32> %in to <4 x float>
153  %div.i = fdiv <4 x float> %vcvt.i, <float 2.0, float 2.0, float 2.0, float undef>
154  ret <4 x float> %div.i
155}
156
157; CHECK-LABEL: test_illegal_int_to_fp:
158; CHECK: vcvt.f32.s32
159define <3 x float> @test_illegal_int_to_fp(<3 x i32> %in) {
160  %conv = sitofp <3 x i32> %in to <3 x float>
161  %res = fdiv <3 x float> %conv, <float 4.0, float 4.0, float 4.0>
162  ret <3 x float> %res
163}