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annotate test/CodeGen/Hexagon/rdf-copy.ll @ 146:3fc4d5c3e21e

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set tail call flag for code segment in CGCAll
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 19:23:36 +0900
parents 3a76565eade5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
100
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -march=hexagon < %s | FileCheck %s
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2 ;
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3 ; Check that
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4 ; {
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5 ; r1 = r0
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6 ; }
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7 ; {
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8 ; r0 = memw(r1 + #0)
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9 ; }
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10 ; was copy-propagated to
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11 ; {
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12 ; r1 = r0
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13 ; r0 = memw(r0 + #0)
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14 ; }
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15 ;
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16 ; CHECK-LABEL: LBB0_1
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17 ; CHECK: [[DST:r[0-9]+]] = [[SRC:r[0-9]+]]
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18 ; CHECK-DAG: memw([[SRC]]
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19 ; CHECK-NOT: memw([[DST]]
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20 ; CHECK: %if.end
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21
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22 target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
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23 target triple = "hexagon"
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24
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25 %union.t = type { %struct.t, [64 x i8] }
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26 %struct.t = type { [12 x i8], %struct.r*, double }
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27 %struct.r = type opaque
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28
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29 define %union.t* @foo(%union.t* %chain) nounwind readonly {
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30 entry:
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31 %tobool = icmp eq %union.t* %chain, null
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32 br i1 %tobool, label %if.end, label %while.cond.preheader
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33
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34 while.cond.preheader: ; preds = %entry
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35 br label %while.cond
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36
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37 while.cond: ; preds = %while.cond.preheader, %while.cond
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38 %chain.addr.0 = phi %union.t* [ %0, %while.cond ], [ %chain, %while.cond.preheader ]
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39 %chain1 = bitcast %union.t* %chain.addr.0 to %union.t**
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40 %0 = load %union.t*, %union.t** %chain1, align 4, !tbaa !0
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41 %tobool2 = icmp eq %union.t* %0, null
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42 br i1 %tobool2, label %if.end.loopexit, label %while.cond
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43
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44 if.end.loopexit: ; preds = %while.cond
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45 br label %if.end
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46
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47 if.end: ; preds = %if.end.loopexit, %entry
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48 %chain.addr.1 = phi %union.t* [ null, %entry ], [ %chain.addr.0, %if.end.loopexit ]
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49 ret %union.t* %chain.addr.1
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50 }
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51
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52 !0 = !{!"any pointer", !1}
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53 !1 = !{!"omnipotent char", !2}
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54 !2 = !{!"Simple C/C++ TBAA"}