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annotate test/CodeGen/PowerPC/rlwinm.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 1172e4bd9c6f
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; All of these ands and shifts should be folded into rlwimi's
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2 ; RUN: llc < %s -march=ppc32 -o %t
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3 ; RUN: not grep and %t
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4 ; RUN: not grep srawi %t
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5 ; RUN: not grep srwi %t
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6 ; RUN: not grep slwi %t
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7 ; RUN: grep rlwinm %t | count 8
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8
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9 define i32 @test1(i32 %a) {
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10 entry:
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11 %tmp.1 = and i32 %a, 268431360 ; <i32> [#uses=1]
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12 ret i32 %tmp.1
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13 }
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14
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15 define i32 @test2(i32 %a) {
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16 entry:
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17 %tmp.1 = and i32 %a, -268435441 ; <i32> [#uses=1]
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18 ret i32 %tmp.1
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19 }
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20
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21 define i32 @test3(i32 %a) {
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22 entry:
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23 %tmp.2 = ashr i32 %a, 8 ; <i32> [#uses=1]
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24 %tmp.3 = and i32 %tmp.2, 255 ; <i32> [#uses=1]
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25 ret i32 %tmp.3
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26 }
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27
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28 define i32 @test4(i32 %a) {
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29 entry:
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30 %tmp.3 = lshr i32 %a, 8 ; <i32> [#uses=1]
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31 %tmp.4 = and i32 %tmp.3, 255 ; <i32> [#uses=1]
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32 ret i32 %tmp.4
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33 }
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34
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35 define i32 @test5(i32 %a) {
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36 entry:
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37 %tmp.2 = shl i32 %a, 8 ; <i32> [#uses=1]
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38 %tmp.3 = and i32 %tmp.2, -8388608 ; <i32> [#uses=1]
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39 ret i32 %tmp.3
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40 }
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41
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42 define i32 @test6(i32 %a) {
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43 entry:
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44 %tmp.1 = and i32 %a, 65280 ; <i32> [#uses=1]
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45 %tmp.2 = ashr i32 %tmp.1, 8 ; <i32> [#uses=1]
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46 ret i32 %tmp.2
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47 }
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48
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49 define i32 @test7(i32 %a) {
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50 entry:
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51 %tmp.1 = and i32 %a, 65280 ; <i32> [#uses=1]
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52 %tmp.2 = lshr i32 %tmp.1, 8 ; <i32> [#uses=1]
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53 ret i32 %tmp.2
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54 }
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55
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56 define i32 @test8(i32 %a) {
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57 entry:
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58 %tmp.1 = and i32 %a, 16711680 ; <i32> [#uses=1]
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59 %tmp.2 = shl i32 %tmp.1, 8 ; <i32> [#uses=1]
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60 ret i32 %tmp.2
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61 }