1 ; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
3 @in = global float 0x400921FA00000000, align 4
4 @iin = global i32 -1023, align 4
5 @uin = global i32 1023, align 4
7 declare void @foo_int32x4_t(<4 x i32>)
9 ; Test signed conversion.
11 ; CHECK-NOT: {{vdiv|vmul}}
12 define void @t1() nounwind {
14 %tmp = load i32, ptr @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
23 declare void @foo_float32x2_t(<2 x float>)
25 ; Test unsigned conversion.
27 ; CHECK-NOT: {{vdiv|vmul}}
28 define void @t2() nounwind {
30 %tmp = load i32, ptr @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
39 ; Test which should not fold due to non-power of 2.
41 ; CHECK: {{vdiv|vmul}}
42 define void @t3() nounwind {
44 %tmp = load i32, ptr @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
53 ; Test which should not fold due to power of 2 out of range.
55 ; CHECK: {{vdiv|vmul}}
56 define void @t4() nounwind {
58 %tmp = load i32, ptr @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
67 ; Test case where const is max power of 2 (i.e., 2^32).
69 ; CHECK-NOT: {{vdiv|vmul}}
70 define void @t5() nounwind {
72 %tmp = load i32, ptr @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
83 ; CHECK-NOT: {{vdiv|vmul}}
84 define void @t6() nounwind {
86 %tmp = load i32, ptr @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
97 declare void @foo_float32x4_t(<4 x float>)
99 define <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
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
109 define <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
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
119 define <2 x float> @fix_i64_to_float(<2 x i64> %in) {
120 ; CHECK-LABEL: fix_i64_to_float:
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
129 define <2 x double> @fix_i64_to_double(<2 x i64> %in) {
130 ; CHECK-LABEL: fix_i64_to_double:
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
139 ; Don't combine with 8 lanes. Just make sure things don't crash.
141 define <8 x float> @test7(<8 x i32> %in) nounwind {
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
148 ; Can combine splat with an undef.
150 ; CHECK: vcvt.f32.s32 q{{[0-9]+}}, q{{[0-9]+}}, #1
151 define <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
157 ; CHECK-LABEL: test_illegal_int_to_fp:
158 ; CHECK: vcvt.f32.s32
159 define <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>