1 ; RUN: llc < %s -mtriple=arm-eabi -mattr=+neon -mcpu=cortex-a9 2 3 ; PR4986 4 5 define arm_aapcs_vfpcc void @foo(i8* nocapture %pBuffer, i32 %numItems) nounwind { 6 entry: 7 br i1 undef, label %return, label %bb.preheader 8 9 bb.preheader: ; preds = %entry 10 br label %bb 11 12 bb: ; preds = %bb, %bb.preheader 13 %0 = shufflevector <4 x float> zeroinitializer, <4 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1] 14 %1 = insertelement <4 x float> %0, float undef, i32 1 ; <<4 x float>> [#uses=1] 15 %2 = insertelement <4 x float> %1, float undef, i32 2 ; <<4 x float>> [#uses=1] 16 %3 = insertelement <4 x float> %2, float undef, i32 3 ; <<4 x float>> [#uses=1] 17 %4 = fmul <4 x float> undef, %3 ; <<4 x float>> [#uses=1] 18 %5 = extractelement <4 x float> %4, i32 3 ; <float> [#uses=1] 19 store float %5, float* undef, align 4 20 br i1 undef, label %return, label %bb 21 22 return: ; preds = %bb, %entry 23 ret void 24 } 25 26 define arm_aapcs_vfpcc <4 x float> @bar(i8* nocapture %pBuffer, i32 %numItems) nounwind { 27 %1 = shufflevector <4 x float> zeroinitializer, <4 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1] 28 %2 = insertelement <4 x float> %1, float undef, i32 1 ; <<4 x float>> [#uses=1] 29 %3 = insertelement <4 x float> %2, float undef, i32 2 ; <<4 x float>> [#uses=1] 30 %4 = insertelement <4 x float> %3, float undef, i32 3 ; <<4 x float>> [#uses=1] 31 %5 = shufflevector <4 x float> %4, <4 x float> undef, <2 x i32> <i32 0, i32 1> ; <<2 x float>> [#uses=1] 32 %6 = shufflevector <2 x float> %5, <2 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1> ; <<4 x float>> [#uses=1] 33 ret <4 x float> %6 34 } 35
