1 ; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse42 -disable-mmx -o %t -f
2 ; RUN: grep paddw %t | count 1
3 ; RUN: grep movd %t | count 1
4 ; RUN: grep pextrd %t | count 1
6 ; bitcast a v4i16 to v2i32
8 define void @convert(<2 x i32>* %dst, <4 x i16>* %src) nounwind {
10 %dst.addr = alloca <2 x i32>* ; <<2 x i32>**> [#uses=2]
11 %src.addr = alloca <4 x i16>* ; <<4 x i16>**> [#uses=2]
12 %i = alloca i32, align 4 ; <i32*> [#uses=6]
13 store <2 x i32>* %dst, <2 x i32>** %dst.addr
14 store <4 x i16>* %src, <4 x i16>** %src.addr
18 forcond: ; preds = %forinc, %entry
19 %tmp = load i32* %i ; <i32> [#uses=1]
20 %cmp = icmp slt i32 %tmp, 4 ; <i1> [#uses=1]
21 br i1 %cmp, label %forbody, label %afterfor
23 forbody: ; preds = %forcond
24 %tmp1 = load i32* %i ; <i32> [#uses=1]
25 %tmp2 = load <2 x i32>** %dst.addr ; <<2 x i32>*> [#uses=1]
26 %arrayidx = getelementptr <2 x i32>* %tmp2, i32 %tmp1 ; <<2 x i32>*> [#uses=1]
27 %tmp3 = load i32* %i ; <i32> [#uses=1]
28 %tmp4 = load <4 x i16>** %src.addr ; <<4 x i16>*> [#uses=1]
29 %arrayidx5 = getelementptr <4 x i16>* %tmp4, i32 %tmp3 ; <<4 x i16>*> [#uses=1]
30 %tmp6 = load <4 x i16>* %arrayidx5 ; <<4 x i16>> [#uses=1]
31 %add = add <4 x i16> %tmp6, < i16 1, i16 1, i16 1, i16 1 > ; <<4 x i16>> [#uses=1]
32 %conv = bitcast <4 x i16> %add to <2 x i32> ; <<2 x i32>> [#uses=1]
33 store <2 x i32> %conv, <2 x i32>* %arrayidx
36 forinc: ; preds = %forbody
37 %tmp7 = load i32* %i ; <i32> [#uses=1]
38 %inc = add i32 %tmp7, 1 ; <i32> [#uses=1]
39 store i32 %inc, i32* %i
42 afterfor: ; preds = %forcond