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annotate test/CodeGen/ARM/2009-08-15-RegScavenger-EarlyClobber.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents afa8332a0e37
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc < %s -mtriple=arm-linux-gnueabi
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2 ; PR4528
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4 ; Inline asm is allowed to contain operands "=&r", "0".
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6 %struct.device_dma_parameters = type { i32, i32 }
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7 %struct.iovec = type { i8*, i32 }
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8
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9 define i32 @generic_segment_checks(%struct.iovec* nocapture %iov, i32* nocapture %nr_segs, i32* nocapture %count, i32 %access_flags) nounwind optsize {
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10 entry:
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11 br label %bb8
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12
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13 bb: ; preds = %bb8
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14 br i1 undef, label %bb10, label %bb2
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15
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16 bb2: ; preds = %bb
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17 %asmtmp = tail call %struct.device_dma_parameters asm "adds $1, $2, $3; sbcccs $1, $1, $0; movcc $0, #0", "=&r,=&r,r,Ir,0,~{cc}"(i8* undef, i32 undef, i32 0) nounwind; <%struct.device_dma_parameters> [#uses=1]
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18 %asmresult = extractvalue %struct.device_dma_parameters %asmtmp, 0; <i32> [#uses=1]
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19 %0 = icmp eq i32 %asmresult, 0 ; <i1> [#uses=1]
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20 br i1 %0, label %bb7, label %bb4
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22 bb4: ; preds = %bb2
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23 br i1 undef, label %bb10, label %bb9
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25 bb7: ; preds = %bb2
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26 %1 = add i32 %2, 1 ; <i32> [#uses=1]
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27 br label %bb8
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29 bb8: ; preds = %bb7, %entry
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30 %2 = phi i32 [ 0, %entry ], [ %1, %bb7 ] ; <i32> [#uses=3]
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31 %scevgep22 = getelementptr %struct.iovec, %struct.iovec* %iov, i32 %2, i32 0; <i8**> [#uses=0]
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32 %3 = load i32, i32* %nr_segs, align 4 ; <i32> [#uses=1]
0
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33 %4 = icmp ult i32 %2, %3 ; <i1> [#uses=1]
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34 br i1 %4, label %bb, label %bb9
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36 bb9: ; preds = %bb8, %bb4
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37 store i32 undef, i32* %count, align 4
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38 ret i32 0
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40 bb10: ; preds = %bb4, %bb
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41 ret i32 0
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42 }