; RUN: llc < %s -march=x86 -mattr=+sse42 | FileCheck %s ; CHECK: paddb ; 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* %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 i64** %dst_i.addr ; <i64*> [#uses=1] %arrayidx = getelementptr 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* %i ; <i32> [#uses=1] %tmp5 = load i64** %src_i.addr ; <i64*> [#uses=1] %arrayidx6 = getelementptr 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* %i ; <i32> [#uses=1] %tmp9 = load <8 x i8>** %dst ; <<8 x i8>*> [#uses=1] %arrayidx10 = getelementptr <8 x i8>* %tmp9, i32 %tmp8 ; <<8 x i8>*> [#uses=1] %tmp11 = load i32* %i ; <i32> [#uses=1] %tmp12 = load <8 x i8>** %src ; <<8 x i8>*> [#uses=1] %arrayidx13 = getelementptr <8 x i8>* %tmp12, i32 %tmp11 ; <<8 x i8>*> [#uses=1] %tmp14 = load <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* %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 }