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; RUN: llc < %s -march=x86 -mattr=+sse42 -disable-mmx | FileCheck %s
; CHECK: paddw
; CHECK: pextrw
; CHECK: movd
; Widen a v3i16 to v8i16 to do a vector add
@.str = internal constant [4 x i8] c"%d \00" ; <[4 x i8]*> [#uses=1]
@.str1 = internal constant [2 x i8] c"\0A\00" ; <[2 x i8]*> [#uses=1]
define void @update(<3 x i16>* %dst, <3 x i16>* %src, i32 %n) nounwind {
entry:
%dst.addr = alloca <3 x i16>* ; <<3 x i16>**> [#uses=2]
%src.addr = alloca <3 x i16>* ; <<3 x i16>**> [#uses=2]
%n.addr = alloca i32 ; <i32*> [#uses=2]
%v = alloca <3 x i16>, align 8 ; <<3 x i16>*> [#uses=1]
%i = alloca i32, align 4 ; <i32*> [#uses=6]
store <3 x i16>* %dst, <3 x i16>** %dst.addr
store <3 x i16>* %src, <3 x i16>** %src.addr
store i32 %n, i32* %n.addr
store <3 x i16> < i16 1, i16 1, i16 1 >, <3 x i16>* %v
store i32 0, i32* %i
br label %forcond
forcond: ; preds = %forinc, %entry
%tmp = load i32* %i ; <i32> [#uses=1]
%tmp1 = load i32* %n.addr ; <i32> [#uses=1]
%cmp = icmp slt i32 %tmp, %tmp1 ; <i1> [#uses=1]
br i1 %cmp, label %forbody, label %afterfor
forbody: ; preds = %forcond
%tmp2 = load i32* %i ; <i32> [#uses=1]
%tmp3 = load <3 x i16>** %dst.addr ; <<3 x i16>*> [#uses=1]
%arrayidx = getelementptr <3 x i16>* %tmp3, i32 %tmp2 ; <<3 x i16>*> [#uses=1]
%tmp4 = load i32* %i ; <i32> [#uses=1]
%tmp5 = load <3 x i16>** %src.addr ; <<3 x i16>*> [#uses=1]
%arrayidx6 = getelementptr <3 x i16>* %tmp5, i32 %tmp4 ; <<3 x i16>*> [#uses=1]
%tmp7 = load <3 x i16>* %arrayidx6 ; <<3 x i16>> [#uses=1]
%add = add <3 x i16> %tmp7, < i16 1, i16 1, i16 1 > ; <<3 x i16>> [#uses=1]
store <3 x i16> %add, <3 x i16>* %arrayidx
br label %forinc
forinc: ; preds = %forbody
%tmp8 = load i32* %i ; <i32> [#uses=1]
%inc = add i32 %tmp8, 1 ; <i32> [#uses=1]
store i32 %inc, i32* %i
br label %forcond
afterfor: ; preds = %forcond
ret void
}
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