1 ; RUN: llc < %s -mcpu=cortex-a8 -verify-machineinstrs -verify-coalescing
4 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
5 target triple = "armv7-none-linux-eabi"
7 ; This test case is exercising REG_SEQUENCE, and chains of REG_SEQUENCE.
8 define arm_aapcs_vfpcc void @foo(ptr nocapture %arg, ptr %arg1) nounwind align 2 {
10 %tmp = load <2 x float>, ptr undef, align 8
11 %tmp2 = extractelement <2 x float> %tmp, i32 0
12 %tmp3 = insertelement <4 x float> undef, float %tmp2, i32 0
13 %tmp4 = insertelement <4 x float> %tmp3, float 0.000000e+00, i32 1
14 %tmp5 = insertelement <4 x float> %tmp4, float 0.000000e+00, i32 2
15 %tmp6 = insertelement <4 x float> %tmp5, float 0.000000e+00, i32 3
16 %tmp7 = extractelement <2 x float> %tmp, i32 1
17 %tmp8 = insertelement <4 x float> %tmp3, float %tmp7, i32 1
18 %tmp9 = insertelement <4 x float> %tmp8, float 0.000000e+00, i32 2
19 %tmp10 = insertelement <4 x float> %tmp9, float 0.000000e+00, i32 3
20 %tmp11 = bitcast <4 x float> %tmp6 to <2 x i64>
21 %tmp12 = shufflevector <2 x i64> %tmp11, <2 x i64> undef, <1 x i32> zeroinitializer
22 %tmp13 = bitcast <1 x i64> %tmp12 to <2 x float>
23 %tmp14 = shufflevector <2 x float> %tmp13, <2 x float> undef, <4 x i32> zeroinitializer
24 %tmp15 = bitcast <4 x float> %tmp14 to <2 x i64>
25 %tmp16 = shufflevector <2 x i64> %tmp15, <2 x i64> undef, <1 x i32> zeroinitializer
26 %tmp17 = bitcast <1 x i64> %tmp16 to <2 x float>
27 %tmp18 = extractelement <2 x float> %tmp17, i32 0
28 tail call arm_aapcs_vfpcc void @bar(ptr undef, float %tmp18, float undef, float 0.000000e+00) nounwind
29 %tmp19 = bitcast <4 x float> %tmp10 to <2 x i64>
30 %tmp20 = shufflevector <2 x i64> %tmp19, <2 x i64> undef, <1 x i32> zeroinitializer
31 %tmp21 = bitcast <1 x i64> %tmp20 to <2 x float>
32 %tmp22 = shufflevector <2 x float> %tmp21, <2 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
33 %tmp23 = bitcast <4 x float> %tmp22 to <2 x i64>
34 %tmp24 = shufflevector <2 x i64> %tmp23, <2 x i64> undef, <1 x i32> zeroinitializer
35 %tmp25 = bitcast <1 x i64> %tmp24 to <2 x float>
36 %tmp26 = extractelement <2 x float> %tmp25, i32 0
37 tail call arm_aapcs_vfpcc void @bar(ptr undef, float undef, float %tmp26, float 0.000000e+00) nounwind
41 define arm_aapcs_vfpcc void @foo2() nounwind uwtable {
43 br i1 undef, label %for.end, label %cond.end295
45 cond.end295: ; preds = %entry
46 %shuffle.i39.i.i1035 = shufflevector <2 x i64> undef, <2 x i64> undef, <1 x i32> zeroinitializer
47 %shuffle.i38.i.i1036 = shufflevector <2 x i64> zeroinitializer, <2 x i64> undef, <1 x i32> zeroinitializer
48 %shuffle.i37.i.i1037 = shufflevector <1 x i64> %shuffle.i39.i.i1035, <1 x i64> %shuffle.i38.i.i1036, <2 x i32> <i32 0, i32 1>
49 %0 = bitcast <2 x i64> %shuffle.i37.i.i1037 to <4 x float>
50 %1 = bitcast <4 x float> undef to <2 x i64>
51 %shuffle.i36.i.i = shufflevector <2 x i64> %1, <2 x i64> undef, <1 x i32> zeroinitializer
52 %shuffle.i35.i.i = shufflevector <2 x i64> undef, <2 x i64> undef, <1 x i32> zeroinitializer
53 %shuffle.i34.i.i = shufflevector <1 x i64> %shuffle.i36.i.i, <1 x i64> %shuffle.i35.i.i, <2 x i32> <i32 0, i32 1>
54 %2 = bitcast <2 x i64> %shuffle.i34.i.i to <4 x float>
55 tail call void @llvm.arm.neon.vst1.p0.v4f32(ptr undef, <4 x float> %0, i32 4) nounwind
56 tail call void @llvm.arm.neon.vst1.p0.v4f32(ptr undef, <4 x float> %2, i32 4) nounwind
59 for.end: ; preds = %entry
63 ; Check that pseudo-expansion preserves <undef> flags.
64 define void @foo3(ptr %p) nounwind ssp {
66 tail call void @llvm.arm.neon.vst2.p0.v4f32(ptr %p, <4 x float> undef, <4 x float> undef, i32 4)
70 declare arm_aapcs_vfpcc void @bar(ptr, float, float, float)
71 declare void @llvm.arm.neon.vst1.p0.v4f32(ptr, <4 x float>, i32) nounwind
72 declare void @llvm.arm.neon.vst2.p0.v4f32(ptr, <4 x float>, <4 x float>, i32) nounwind