1 ; RUN: llc < %s -march=x86 -mattr=+sse4.2 | FileCheck %s 2 ; RUN: llc < %s -march=x86 -mattr=+sse4.2 -x86-experimental-vector-widening-legalization | FileCheck %s --check-prefix=CHECK-WIDE 3 4 define void @update(i64* %dst_i, i64* %src_i, i32 %n) nounwind { 5 ; CHECK-LABEL: update: 6 ; CHECK-WIDE-LABEL: update: 7 entry: 8 %dst_i.addr = alloca i64* ; <i64**> [#uses=2] 9 %src_i.addr = alloca i64* ; <i64**> [#uses=2] 10 %n.addr = alloca i32 ; <i32*> [#uses=2] 11 %i = alloca i32, align 4 ; <i32*> [#uses=8] 12 %dst = alloca <8 x i8>*, align 4 ; <<8 x i8>**> [#uses=2] 13 %src = alloca <8 x i8>*, align 4 ; <<8 x i8>**> [#uses=2] 14 store i64* %dst_i, i64** %dst_i.addr 15 store i64* %src_i, i64** %src_i.addr 16 store i32 %n, i32* %n.addr 17 store i32 0, i32* %i 18 br label %forcond 19 20 forcond: ; preds = %forinc, %entry 21 %tmp = load i32, i32* %i ; <i32> [#uses=1] 22 %tmp1 = load i32, i32* %n.addr ; <i32> [#uses=1] 23 %cmp = icmp slt i32 %tmp, %tmp1 ; <i1> [#uses=1] 24 br i1 %cmp, label %forbody, label %afterfor 25 26 forbody: ; preds = %forcond 27 %tmp2 = load i32, i32* %i ; <i32> [#uses=1] 28 %tmp3 = load i64*, i64** %dst_i.addr ; <i64*> [#uses=1] 29 %arrayidx = getelementptr i64, i64* %tmp3, i32 %tmp2 ; <i64*> [#uses=1] 30 %conv = bitcast i64* %arrayidx to <8 x i8>* ; <<8 x i8>*> [#uses=1] 31 store <8 x i8>* %conv, <8 x i8>** %dst 32 %tmp4 = load i32, i32* %i ; <i32> [#uses=1] 33 %tmp5 = load i64*, i64** %src_i.addr ; <i64*> [#uses=1] 34 %arrayidx6 = getelementptr i64, i64* %tmp5, i32 %tmp4 ; <i64*> [#uses=1] 35 %conv7 = bitcast i64* %arrayidx6 to <8 x i8>* ; <<8 x i8>*> [#uses=1] 36 store <8 x i8>* %conv7, <8 x i8>** %src 37 %tmp8 = load i32, i32* %i ; <i32> [#uses=1] 38 %tmp9 = load <8 x i8>*, <8 x i8>** %dst ; <<8 x i8>*> [#uses=1] 39 %arrayidx10 = getelementptr <8 x i8>, <8 x i8>* %tmp9, i32 %tmp8 ; <<8 x i8>*> [#uses=1] 40 %tmp11 = load i32, i32* %i ; <i32> [#uses=1] 41 %tmp12 = load <8 x i8>*, <8 x i8>** %src ; <<8 x i8>*> [#uses=1] 42 %arrayidx13 = getelementptr <8 x i8>, <8 x i8>* %tmp12, i32 %tmp11 ; <<8 x i8>*> [#uses=1] 43 %tmp14 = load <8 x i8>, <8 x i8>* %arrayidx13 ; <<8 x i8>> [#uses=1] 44 %add = add <8 x i8> %tmp14, < i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1 > ; <<8 x i8>> [#uses=1] 45 %shr = ashr <8 x i8> %add, < i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2 > ; <<8 x i8>> [#uses=1] 46 store <8 x i8> %shr, <8 x i8>* %arrayidx10 47 br label %forinc 48 ; CHECK: %forbody 49 ; CHECK: pmovzxbw 50 ; CHECK-NEXT: paddw 51 ; CHECK-NEXT: psllw $8 52 ; CHECK-NEXT: psraw $8 53 ; CHECK-NEXT: psraw $2 54 ; CHECK-NEXT: pshufb 55 ; CHECK-NEXT: movq 56 ; 57 ; FIXME: We shouldn't require both a movd and an insert. 58 ; CHECK-WIDE: %forbody 59 ; CHECK-WIDE: movd 60 ; CHECK-WIDE-NEXT: pinsrd 61 ; CHECK-WIDE-NEXT: paddb 62 ; CHECK-WIDE-NEXT: psrlw $2 63 ; CHECK-WIDE-NEXT: pand 64 ; CHECK-WIDE-NEXT: pxor 65 ; CHECK-WIDE-NEXT: psubb 66 ; CHECK-WIDE-NEXT: pextrd 67 ; CHECK-WIDE-NEXT: movd 68 69 forinc: ; preds = %forbody 70 %tmp15 = load i32, i32* %i ; <i32> [#uses=1] 71 %inc = add i32 %tmp15, 1 ; <i32> [#uses=1] 72 store i32 %inc, i32* %i 73 br label %forcond 74 75 afterfor: ; preds = %forcond 76 ret void 77 } 78 79
