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annotate test/CodeGen/X86/widen_arith-5.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 803732b1fca8
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1 ; RUN: llc < %s -march=x86-64 -mattr=+sse4.2 | FileCheck %s
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2 ; CHECK: movdqa
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3 ; CHECK: pslld $2
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4 ; CHECK: psubd
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6 ; widen a v3i32 to v4i32 to do a vector multiple and a subtraction
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8 define void @update(<3 x i32>* %dst, <3 x i32>* %src, i32 %n) nounwind {
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9 entry:
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10 %dst.addr = alloca <3 x i32>* ; <<3 x i32>**> [#uses=2]
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11 %src.addr = alloca <3 x i32>* ; <<3 x i32>**> [#uses=2]
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12 %n.addr = alloca i32 ; <i32*> [#uses=2]
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13 %v = alloca <3 x i32>, align 16 ; <<3 x i32>*> [#uses=1]
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14 %i = alloca i32, align 4 ; <i32*> [#uses=6]
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15 store <3 x i32>* %dst, <3 x i32>** %dst.addr
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16 store <3 x i32>* %src, <3 x i32>** %src.addr
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17 store i32 %n, i32* %n.addr
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18 store <3 x i32> < i32 1, i32 1, i32 1 >, <3 x i32>* %v
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19 store i32 0, i32* %i
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20 br label %forcond
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22 forcond: ; preds = %forinc, %entry
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23 %tmp = load i32, i32* %i ; <i32> [#uses=1]
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24 %tmp1 = load i32, i32* %n.addr ; <i32> [#uses=1]
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25 %cmp = icmp slt i32 %tmp, %tmp1 ; <i1> [#uses=1]
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26 br i1 %cmp, label %forbody, label %afterfor
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28 forbody: ; preds = %forcond
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29 %tmp2 = load i32, i32* %i ; <i32> [#uses=1]
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30 %tmp3 = load <3 x i32>*, <3 x i32>** %dst.addr ; <<3 x i32>*> [#uses=1]
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31 %arrayidx = getelementptr <3 x i32>, <3 x i32>* %tmp3, i32 %tmp2 ; <<3 x i32>*> [#uses=1]
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32 %tmp4 = load i32, i32* %i ; <i32> [#uses=1]
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33 %tmp5 = load <3 x i32>*, <3 x i32>** %src.addr ; <<3 x i32>*> [#uses=1]
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34 %arrayidx6 = getelementptr <3 x i32>, <3 x i32>* %tmp5, i32 %tmp4 ; <<3 x i32>*> [#uses=1]
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35 %tmp7 = load <3 x i32>, <3 x i32>* %arrayidx6 ; <<3 x i32>> [#uses=1]
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36 %mul = mul <3 x i32> %tmp7, < i32 4, i32 4, i32 4 > ; <<3 x i32>> [#uses=1]
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37 %sub = sub <3 x i32> %mul, < i32 3, i32 3, i32 3 > ; <<3 x i32>> [#uses=1]
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38 store <3 x i32> %sub, <3 x i32>* %arrayidx
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39 br label %forinc
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41 forinc: ; preds = %forbody
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42 %tmp8 = load i32, i32* %i ; <i32> [#uses=1]
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43 %inc = add i32 %tmp8, 1 ; <i32> [#uses=1]
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44 store i32 %inc, i32* %i
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45 br label %forcond
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47 afterfor: ; preds = %forcond
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48 ret void
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49 }
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