1 ; RUN: llc < %s -march=x86 -mattr=+sse42 | FileCheck %s 2 3 ; widening shuffle v3float and then a add 4 define void @shuf(<3 x float>* %dst.addr, <3 x float> %src1,<3 x float> %src2) nounwind { 5 entry: 6 ; CHECK-LABEL: shuf: 7 ; CHECK: extractps 8 ; CHECK: extractps 9 %x = shufflevector <3 x float> %src1, <3 x float> %src2, <3 x i32> < i32 0, i32 1, i32 2> 10 %val = fadd <3 x float> %x, %src2 11 store <3 x float> %val, <3 x float>* %dst.addr 12 ret void 13 ; CHECK: ret 14 } 15 16 17 ; widening shuffle v3float with a different mask and then a add 18 define void @shuf2(<3 x float>* %dst.addr, <3 x float> %src1,<3 x float> %src2) nounwind { 19 entry: 20 ; CHECK-LABEL: shuf2: 21 ; CHECK: extractps 22 ; CHECK: extractps 23 %x = shufflevector <3 x float> %src1, <3 x float> %src2, <3 x i32> < i32 0, i32 4, i32 2> 24 %val = fadd <3 x float> %x, %src2 25 store <3 x float> %val, <3 x float>* %dst.addr 26 ret void 27 ; CHECK: ret 28 } 29 30 ; Example of when widening a v3float operation causes the DAG to replace a node 31 ; with the operation that we are currently widening, i.e. when replacing 32 ; opA with opB, the DAG will produce new operations with opA. 33 define void @shuf3(<4 x float> %tmp10, <4 x float> %vecinit15, <4 x float>* %dst) nounwind { 34 entry: 35 ; CHECK-LABEL: shuf3: 36 ; CHECK: shufps 37 %shuffle.i.i.i12 = shufflevector <4 x float> %tmp10, <4 x float> %vecinit15, <4 x i32> <i32 0, i32 1, i32 4, i32 5> 38 %tmp25.i.i = shufflevector <4 x float> %shuffle.i.i.i12, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2> 39 %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> 40 %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>> 41 %tmp6.i14 = shufflevector <3 x float> %tmp3.i13, <3 x float> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3> 42 %tmp97.i = shufflevector <4 x float> %tmp6.i14, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2> 43 %tmp2.i18 = shufflevector <3 x float> %tmp97.i, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 2> 44 %t5 = bitcast <4 x float> %tmp2.i18 to <4 x i32> 45 %shr.i.i19 = lshr <4 x i32> %t5, <i32 19, i32 19, i32 19, i32 19> 46 %and.i.i20 = and <4 x i32> %shr.i.i19, <i32 4080, i32 4080, i32 4080, i32 4080> 47 %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> 48 store <4 x float> %shuffle.i.i.i21, <4 x float>* %dst 49 ret void 50 ; CHECK: ret 51 } 52 53 ; PR10421: make sure we correctly handle extreme widening with CONCAT_VECTORS 54 define <8 x i8> @shuf4(<4 x i8> %a, <4 x i8> %b) nounwind readnone { 55 ; CHECK-LABEL: shuf4: 56 ; CHECK-NOT: punpckldq 57 %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> 58 ret <8 x i8> %vshuf 59 ; CHECK: ret 60 } 61 62 ; PR11389: another CONCAT_VECTORS case 63 define void @shuf5(<8 x i8>* %p) nounwind { 64 ; CHECK-LABEL: shuf5: 65 %v = shufflevector <2 x i8> <i8 4, i8 33>, <2 x i8> undef, <8 x i32> <i32 1, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> 66 store <8 x i8> %v, <8 x i8>* %p, align 8 67 ret void 68 ; CHECK: ret 69 } 70
