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; RUN: llc < %s -march=x86 -mattr=+sse4.2 | FileCheck %s
; CHECK: padd
; CHECK: pand
; widen v8i8 to v16i8 (checks even power of 2 widening with add & and)
define void @update(i64* %dst_i, i64* %src_i, i32 %n) nounwind {
entry:
%dst_i.addr = alloca i64* ; <i64**> [#uses=2]
%src_i.addr = alloca i64* ; <i64**> [#uses=2]
%n.addr = alloca i32 ; <i32*> [#uses=2]
%i = alloca i32, align 4 ; <i32*> [#uses=8]
%dst = alloca <8 x i8>*, align 4 ; <<8 x i8>**> [#uses=2]
%src = alloca <8 x i8>*, align 4 ; <<8 x i8>**> [#uses=2]
store i64* %dst_i, i64** %dst_i.addr
store i64* %src_i, i64** %src_i.addr
store i32 %n, i32* %n.addr
store i32 0, i32* %i
br label %forcond
forcond: ; preds = %forinc, %entry
%tmp = load i32, i32* %i ; <i32> [#uses=1]
%tmp1 = load i32, 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, i32* %i ; <i32> [#uses=1]
%tmp3 = load i64*, i64** %dst_i.addr ; <i64*> [#uses=1]
%arrayidx = getelementptr i64, i64* %tmp3, i32 %tmp2 ; <i64*> [#uses=1]
%conv = bitcast i64* %arrayidx to <8 x i8>* ; <<8 x i8>*> [#uses=1]
store <8 x i8>* %conv, <8 x i8>** %dst
%tmp4 = load i32, i32* %i ; <i32> [#uses=1]
%tmp5 = load i64*, i64** %src_i.addr ; <i64*> [#uses=1]
%arrayidx6 = getelementptr i64, i64* %tmp5, i32 %tmp4 ; <i64*> [#uses=1]
%conv7 = bitcast i64* %arrayidx6 to <8 x i8>* ; <<8 x i8>*> [#uses=1]
store <8 x i8>* %conv7, <8 x i8>** %src
%tmp8 = load i32, i32* %i ; <i32> [#uses=1]
%tmp9 = load <8 x i8>*, <8 x i8>** %dst ; <<8 x i8>*> [#uses=1]
%arrayidx10 = getelementptr <8 x i8>, <8 x i8>* %tmp9, i32 %tmp8 ; <<8 x i8>*> [#uses=1]
%tmp11 = load i32, i32* %i ; <i32> [#uses=1]
%tmp12 = load <8 x i8>*, <8 x i8>** %src ; <<8 x i8>*> [#uses=1]
%arrayidx13 = getelementptr <8 x i8>, <8 x i8>* %tmp12, i32 %tmp11 ; <<8 x i8>*> [#uses=1]
%tmp14 = load <8 x i8>, <8 x i8>* %arrayidx13 ; <<8 x i8>> [#uses=1]
%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]
%and = and <8 x i8> %add, < i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4 > ; <<8 x i8>> [#uses=1]
store <8 x i8> %and, <8 x i8>* %arrayidx10
br label %forinc
forinc: ; preds = %forbody
%tmp15 = load i32, i32* %i ; <i32> [#uses=1]
%inc = add i32 %tmp15, 1 ; <i32> [#uses=1]
store i32 %inc, i32* %i
br label %forcond
afterfor: ; preds = %forcond
ret void
}
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