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; RUN: llc < %s -mcpu=cortex-a8 -verify-machineinstrs -verify-coalescing
; PR11841
; PR11829
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"
target triple = "armv7-none-linux-eabi"
; This test case is exercising REG_SEQUENCE, and chains of REG_SEQUENCE.
define arm_aapcs_vfpcc void @foo(i8* nocapture %arg, i8* %arg1) nounwind align 2 {
bb:
%tmp = load <2 x float>, <2 x float>* undef, align 8
%tmp2 = extractelement <2 x float> %tmp, i32 0
%tmp3 = insertelement <4 x float> undef, float %tmp2, i32 0
%tmp4 = insertelement <4 x float> %tmp3, float 0.000000e+00, i32 1
%tmp5 = insertelement <4 x float> %tmp4, float 0.000000e+00, i32 2
%tmp6 = insertelement <4 x float> %tmp5, float 0.000000e+00, i32 3
%tmp7 = extractelement <2 x float> %tmp, i32 1
%tmp8 = insertelement <4 x float> %tmp3, float %tmp7, i32 1
%tmp9 = insertelement <4 x float> %tmp8, float 0.000000e+00, i32 2
%tmp10 = insertelement <4 x float> %tmp9, float 0.000000e+00, i32 3
%tmp11 = bitcast <4 x float> %tmp6 to <2 x i64>
%tmp12 = shufflevector <2 x i64> %tmp11, <2 x i64> undef, <1 x i32> zeroinitializer
%tmp13 = bitcast <1 x i64> %tmp12 to <2 x float>
%tmp14 = shufflevector <2 x float> %tmp13, <2 x float> undef, <4 x i32> zeroinitializer
%tmp15 = bitcast <4 x float> %tmp14 to <2 x i64>
%tmp16 = shufflevector <2 x i64> %tmp15, <2 x i64> undef, <1 x i32> zeroinitializer
%tmp17 = bitcast <1 x i64> %tmp16 to <2 x float>
%tmp18 = extractelement <2 x float> %tmp17, i32 0
tail call arm_aapcs_vfpcc void @bar(i8* undef, float %tmp18, float undef, float 0.000000e+00) nounwind
%tmp19 = bitcast <4 x float> %tmp10 to <2 x i64>
%tmp20 = shufflevector <2 x i64> %tmp19, <2 x i64> undef, <1 x i32> zeroinitializer
%tmp21 = bitcast <1 x i64> %tmp20 to <2 x float>
%tmp22 = shufflevector <2 x float> %tmp21, <2 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
%tmp23 = bitcast <4 x float> %tmp22 to <2 x i64>
%tmp24 = shufflevector <2 x i64> %tmp23, <2 x i64> undef, <1 x i32> zeroinitializer
%tmp25 = bitcast <1 x i64> %tmp24 to <2 x float>
%tmp26 = extractelement <2 x float> %tmp25, i32 0
tail call arm_aapcs_vfpcc void @bar(i8* undef, float undef, float %tmp26, float 0.000000e+00) nounwind
ret void
}
define arm_aapcs_vfpcc void @foo2() nounwind uwtable {
entry:
br i1 undef, label %for.end, label %cond.end295
cond.end295: ; preds = %entry
%shuffle.i39.i.i1035 = shufflevector <2 x i64> undef, <2 x i64> undef, <1 x i32> zeroinitializer
%shuffle.i38.i.i1036 = shufflevector <2 x i64> zeroinitializer, <2 x i64> undef, <1 x i32> zeroinitializer
%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>
%0 = bitcast <2 x i64> %shuffle.i37.i.i1037 to <4 x float>
%1 = bitcast <4 x float> undef to <2 x i64>
%shuffle.i36.i.i = shufflevector <2 x i64> %1, <2 x i64> undef, <1 x i32> zeroinitializer
%shuffle.i35.i.i = shufflevector <2 x i64> undef, <2 x i64> undef, <1 x i32> zeroinitializer
%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>
%2 = bitcast <2 x i64> %shuffle.i34.i.i to <4 x float>
tail call void @llvm.arm.neon.vst1.v4f32(i8* undef, <4 x float> %0, i32 4) nounwind
tail call void @llvm.arm.neon.vst1.v4f32(i8* undef, <4 x float> %2, i32 4) nounwind
unreachable
for.end: ; preds = %entry
ret void
}
; Check that pseudo-expansion preserves <undef> flags.
define void @foo3(i8* %p) nounwind ssp {
entry:
tail call void @llvm.arm.neon.vst2.v4f32(i8* %p, <4 x float> undef, <4 x float> undef, i32 4)
ret void
}
declare arm_aapcs_vfpcc void @bar(i8*, float, float, float)
declare void @llvm.arm.neon.vst1.v4f32(i8*, <4 x float>, i32) nounwind
declare void @llvm.arm.neon.vst2.v4f32(i8*, <4 x float>, <4 x float>, i32) nounwind
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