; RUN: llc < %s -march=x86 -mattr=+sse42 | FileCheck %s ; widening shuffle v3float and then a add define void @shuf(<3 x float>* %dst.addr, <3 x float> %src1,<3 x float> %src2) nounwind { entry: ; CHECK: shuf: ; CHECK: extractps ; CHECK: extractps %x = shufflevector <3 x float> %src1, <3 x float> %src2, <3 x i32> < i32 0, i32 1, i32 2> %val = fadd <3 x float> %x, %src2 store <3 x float> %val, <3 x float>* %dst.addr ret void } ; widening shuffle v3float with a different mask and then a add define void @shuf2(<3 x float>* %dst.addr, <3 x float> %src1,<3 x float> %src2) nounwind { entry: ; CHECK: shuf2: ; CHECK: extractps ; CHECK: extractps %x = shufflevector <3 x float> %src1, <3 x float> %src2, <3 x i32> < i32 0, i32 4, i32 2> %val = fadd <3 x float> %x, %src2 store <3 x float> %val, <3 x float>* %dst.addr ret void } ; Example of when widening a v3float operation causes the DAG to replace a node ; with the operation that we are currently widening, i.e. when replacing ; opA with opB, the DAG will produce new operations with opA. define void @shuf3(<4 x float> %tmp10, <4 x float> %vecinit15, <4 x float>* %dst) nounwind { entry: ; CHECK: shuf3: ; CHECK: pshufd %shuffle.i.i.i12 = shufflevector <4 x float> %tmp10, <4 x float> %vecinit15, <4 x i32> <i32 0, i32 1, i32 4, i32 5> %tmp25.i.i = shufflevector <4 x float> %shuffle.i.i.i12, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2> %tmp1.i.i = shufflevector <3 x float> %tmp25.i.i, <3 x float> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3> %tmp3.i13 = shufflevector <4 x float> %tmp1.i.i, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2> ; <<3 x float>> %tmp6.i14 = shufflevector <3 x float> %tmp3.i13, <3 x float> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3> %tmp97.i = shufflevector <4 x float> %tmp6.i14, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2> %tmp2.i18 = shufflevector <3 x float> %tmp97.i, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 2> %t5 = bitcast <4 x float> %tmp2.i18 to <4 x i32> %shr.i.i19 = lshr <4 x i32> %t5, <i32 19, i32 19, i32 19, i32 19> %and.i.i20 = and <4 x i32> %shr.i.i19, <i32 4080, i32 4080, i32 4080, i32 4080> %shuffle.i.i.i21 = shufflevector <4 x float> %tmp2.i18, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 2, i32 3> store <4 x float> %shuffle.i.i.i21, <4 x float>* %dst ret void } ; PR10421: make sure we correctly handle extreme widening with CONCAT_VECTORS define <8 x i8> @shuf4(<4 x i8> %a, <4 x i8> %b) nounwind readnone { ; CHECK: shuf4: ; CHECK: punpckldq %vshuf = shufflevector <4 x i8> %a, <4 x i8> %b, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> ret <8 x i8> %vshuf }