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
4 define void @update(i64* %dst_i, i64* %src_i, i32 %n) nounwind {
6 ; CHECK-WIDE-LABEL: update:
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
20 forcond: ; preds = %forinc, %entry
21 %tmp = load i32* %i ; <i32> [#uses=1]
22 %tmp1 = load i32* %n.addr ; <i32> [#uses=1]
23 %cmp = icmp slt i32 %tmp, %tmp1 ; <i1> [#uses=1]
24 br i1 %cmp, label %forbody, label %afterfor
26 forbody: ; preds = %forcond
27 %tmp2 = load i32* %i ; <i32> [#uses=1]
28 %tmp3 = load i64** %dst_i.addr ; <i64*> [#uses=1]
29 %arrayidx = getelementptr 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* %i ; <i32> [#uses=1]
33 %tmp5 = load i64** %src_i.addr ; <i64*> [#uses=1]
34 %arrayidx6 = getelementptr 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* %i ; <i32> [#uses=1]
38 %tmp9 = load <8 x i8>** %dst ; <<8 x i8>*> [#uses=1]
39 %arrayidx10 = getelementptr <8 x i8>* %tmp9, i32 %tmp8 ; <<8 x i8>*> [#uses=1]
40 %tmp11 = load i32* %i ; <i32> [#uses=1]
41 %tmp12 = load <8 x i8>** %src ; <<8 x i8>*> [#uses=1]
42 %arrayidx13 = getelementptr <8 x i8>* %tmp12, i32 %tmp11 ; <<8 x i8>*> [#uses=1]
43 %tmp14 = load <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
51 ; CHECK-NEXT: psllw $8
52 ; CHECK-NEXT: psraw $8
53 ; CHECK-NEXT: psraw $2
57 ; FIXME: We shouldn't require both a movd and an insert.
58 ; CHECK-WIDE: %forbody
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
69 forinc: ; preds = %forbody
70 %tmp15 = load i32* %i ; <i32> [#uses=1]
71 %inc = add i32 %tmp15, 1 ; <i32> [#uses=1]
72 store i32 %inc, i32* %i
75 afterfor: ; preds = %forcond