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annotate test/CodeGen/X86/unreachable-loop-sinking.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children
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95c75e76d11b LLVM 3.4
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1 ; RUN: llc < %s
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2 ; PR6777
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3
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4 ; MachineSink shouldn't try to sink code in unreachable blocks, as it's
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5 ; not worthwhile, and there are corner cases which it doesn't handle.
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6
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7 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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8 target triple = "x86_64-unknown-linux-gnu"
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10 define double @fn1(i8* %arg, i64 %arg1) {
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11 Entry:
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12 br i1 undef, label %Body, label %Exit
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13
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14 Exit: ; preds = %Brancher7, %Entry
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15 ret double undef
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16
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17 Body: ; preds = %Entry
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18 br i1 false, label %Brancher7, label %Body3
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19
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20 Body3: ; preds = %Body6, %Body3, %Body
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21 br label %Body3
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22
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23 Body6: ; preds = %Brancher7
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24 %tmp = fcmp oeq double 0xC04FBB2E40000000, undef ; <i1> [#uses=1]
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25 br i1 %tmp, label %Body3, label %Brancher7
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26
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27 Brancher7: ; preds = %Body6, %Body
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28 %tmp2 = icmp ult i32 undef, 10 ; <i1> [#uses=1]
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29 br i1 %tmp2, label %Body6, label %Exit
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30 }