Mercurial > hg > CbC > CbC_llvm

annotate test/CodeGen/Hexagon/ifcvt-edge-weight.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:
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afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -march=hexagon -mcpu=hexagonv5 -hexagon-eif=0 -print-machineinstrs=if-converter %s -o /dev/null 2>&1 | FileCheck %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ; Check that the edge weights are updated correctly after if-conversion.
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3
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3a76565eade5 update 5.0.1
mir3636
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4 ; CHECK: bb.3.if{{[0-9a-zA-Z.]*}}:
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mir3636
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5 ; CHECK: successors: %bb.2(0x0ccccccd), %bb.1(0x73333333)
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6 @a = external global i32
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7 @d = external global i32
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8
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9 ; In the following CFG, A,B,C,D will be if-converted into a single block.
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10 ; Check if the edge weights on edges to E and F are maintained correctly.
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11 ;
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12 ; A
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13 ; / \
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14 ; B C
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15 ; \ /
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16 ; D
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17 ; / \
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18 ; E F
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19 ;
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20 define void @test1(i8 zeroext %la, i8 zeroext %lb) {
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21 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 %cmp0 = call i1 @pred()
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23 br i1 %cmp0, label %if.else2, label %if.then0, !prof !1
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24
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25 if.else2:
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26 call void @bar(i32 2)
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27 br label %if.end2
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28
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29 if.end2:
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30 call void @foo(i32 2)
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31 br label %return
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32
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33 if.end:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34 %storemerge = phi i32 [ %and, %if.else ], [ %shl, %if.then ]
afa8332a0e37 LLVM 3.8
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35 store i32 %storemerge, i32* @a, align 4
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36 %0 = load i32, i32* @d, align 4
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37 %cmp2 = call i1 @pred()
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38 br i1 %cmp2, label %if.end2, label %if.else2, !prof !2
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39
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40 if.then0:
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41 %cmp = icmp eq i8 %la, %lb
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42 br i1 %cmp, label %if.then, label %if.else, !prof !1
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43
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44 if.then:
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45 %conv1 = zext i8 %la to i32
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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46 %shl = shl nuw nsw i32 %conv1, 16
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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47 br label %if.end
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48
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49 if.else:
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50 %and8 = and i8 %lb, %la
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51 %and = zext i8 %and8 to i32
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52 br label %if.end
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53
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54 return:
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55 call void @foo(i32 2)
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56 ret void
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57 }
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58
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59 declare void @foo(i32)
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60 declare void @bar(i32)
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61 declare i1 @pred()
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62
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63 !1 = !{!"branch_weights", i32 80, i32 20}
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64 !2 = !{!"branch_weights", i32 10, i32 90}