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annotate test/Transforms/IndVarSimplify/elim-extend.ll @ 52:c22698ecb2a9

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modified CreateIdentifierInfo and create new function which was named 'CreateUniqueIdentifierInfo'.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 Jan 2014 21:01:33 +0900
parents 95c75e76d11b
children afa8332a0e37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 ; RUN: opt < %s -indvars -S | FileCheck %s
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parents:
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2
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parents:
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3 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-n8:16:32:64"
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parents:
diff changeset
4
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; IV with constant start, preinc and postinc sign extends, with and without NSW.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 ; IV rewrite only removes one sext. WidenIVs removes all three.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 define void @postincConstIV(i8* %base, i32 %limit) nounwind {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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9 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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10 ; CHECK: loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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11 ; CHECK-NOT: sext
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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12 ; CHECK: exit:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 %iv = phi i32 [ %postiv, %loop ], [ 0, %entry ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 %ivnsw = phi i32 [ %postivnsw, %loop ], [ 0, %entry ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 %preofs = sext i32 %iv to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 %preadr = getelementptr i8* %base, i64 %preofs
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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18 store i8 0, i8* %preadr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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19 %postiv = add i32 %iv, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 %postofs = sext i32 %postiv to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 %postadr = getelementptr i8* %base, i64 %postofs
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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22 store i8 0, i8* %postadr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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23 %postivnsw = add nsw i32 %ivnsw, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24 %postofsnsw = sext i32 %postivnsw to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25 %postadrnsw = getelementptr i8* %base, i64 %postofsnsw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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26 store i8 0, i8* %postadrnsw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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27 %cond = icmp sgt i32 %limit, %iv
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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28 br i1 %cond, label %loop, label %exit
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29 exit:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 br label %return
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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31 return:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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32 ret void
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33 }
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parents:
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34
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35 ; IV with nonconstant start, preinc and postinc sign extends,
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 ; with and without NSW.
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parents:
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37 ; As with postincConstIV, WidenIVs removes all three sexts.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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38 define void @postincVarIV(i8* %base, i32 %init, i32 %limit) nounwind {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 %precond = icmp sgt i32 %limit, %init
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 br i1 %precond, label %loop, label %return
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ; CHECK: loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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43 ; CHECK-NOT: sext
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 ; CHECK: exit:
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45 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46 %iv = phi i32 [ %postiv, %loop ], [ %init, %entry ]
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parents:
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47 %ivnsw = phi i32 [ %postivnsw, %loop ], [ %init, %entry ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48 %preofs = sext i32 %iv to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 %preadr = getelementptr i8* %base, i64 %preofs
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 store i8 0, i8* %preadr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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51 %postiv = add i32 %iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 %postofs = sext i32 %postiv to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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53 %postadr = getelementptr i8* %base, i64 %postofs
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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54 store i8 0, i8* %postadr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55 %postivnsw = add nsw i32 %ivnsw, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56 %postofsnsw = sext i32 %postivnsw to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 %postadrnsw = getelementptr i8* %base, i64 %postofsnsw
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parents:
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58 store i8 0, i8* %postadrnsw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 %cond = icmp sgt i32 %limit, %postiv
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parents:
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60 br i1 %cond, label %loop, label %exit
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parents:
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61 exit:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 br label %return
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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63 return:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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64 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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65 }
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parents:
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66
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parents:
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67 ; Test sign extend elimination in the inner and outer loop.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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68 ; %outercount is straightforward to widen, besides being in an outer loop.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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69 ; %innercount is currently blocked by lcssa, so is not widened.
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parents:
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70 ; %inneriv can be widened only after proving it has no signed-overflow
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parents:
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71 ; based on the loop test.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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72 define void @nestedIV(i8* %address, i32 %limit) nounwind {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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73 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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74 %limitdec = add i32 %limit, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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75 br label %outerloop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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76
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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77 ; CHECK: outerloop:
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78 ;
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79 ; Eliminate %ofs1 after widening outercount.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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80 ; CHECK-NOT: sext
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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81 ; CHECK: getelementptr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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82 ;
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parents:
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83 ; IV rewriting hoists a gep into this block. We don't like that.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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84 ; CHECK-NOT: getelementptr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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85 outerloop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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86 %outercount = phi i32 [ %outerpostcount, %outermerge ], [ 0, %entry ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
87 %innercount = phi i32 [ %innercount.merge, %outermerge ], [ 0, %entry ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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88
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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89 %outercountdec = add i32 %outercount, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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90 %ofs1 = sext i32 %outercountdec to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
91 %adr1 = getelementptr i8* %address, i64 %ofs1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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92 store i8 0, i8* %adr1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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93
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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94 br label %innerpreheader
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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95
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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96 innerpreheader:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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97 %innerprecmp = icmp sgt i32 %limitdec, %innercount
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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98 br i1 %innerprecmp, label %innerloop, label %outermerge
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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99
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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100 ; CHECK: innerloop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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101 ;
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parents:
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102 ; Eliminate %ofs2 after widening inneriv.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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103 ; Eliminate %ofs3 after normalizing sext(innerpostiv)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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104 ; CHECK-NOT: sext
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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105 ; CHECK: getelementptr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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106 ;
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parents:
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107 ; FIXME: We should check that indvars does not increase the number of
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
108 ; IVs in this loop. sext elimination plus LFTR currently results in 2 final
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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109 ; IVs. Waiting to remove LFTR.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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110 innerloop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
111 %inneriv = phi i32 [ %innerpostiv, %innerloop ], [ %innercount, %innerpreheader ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
112 %innerpostiv = add i32 %inneriv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
113
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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114 %ofs2 = sext i32 %inneriv to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
115 %adr2 = getelementptr i8* %address, i64 %ofs2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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116 store i8 0, i8* %adr2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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117
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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118 %ofs3 = sext i32 %innerpostiv to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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119 %adr3 = getelementptr i8* %address, i64 %ofs3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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120 store i8 0, i8* %adr3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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121
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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122 %innercmp = icmp sgt i32 %limitdec, %innerpostiv
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 br i1 %innercmp, label %innerloop, label %innerexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
124
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
125 innerexit:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
126 %innercount.lcssa = phi i32 [ %innerpostiv, %innerloop ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 br label %outermerge
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
128
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
129 ; CHECK: outermerge:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 ;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 ; Eliminate %ofs4 after widening outercount
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 ; CHECK-NOT: sext
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 ; CHECK: getelementptr
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 ;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 ; TODO: Eliminate %ofs5 after removing lcssa
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136 outermerge:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 %innercount.merge = phi i32 [ %innercount.lcssa, %innerexit ], [ %innercount, %innerpreheader ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 %ofs4 = sext i32 %outercount to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 %adr4 = getelementptr i8* %address, i64 %ofs4
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 store i8 0, i8* %adr4
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
142
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
143 %ofs5 = sext i32 %innercount.merge to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 %adr5 = getelementptr i8* %address, i64 %ofs5
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
145 store i8 0, i8* %adr5
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
147 %outerpostcount = add i32 %outercount, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 %tmp47 = icmp slt i32 %outerpostcount, %limit
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 br i1 %tmp47, label %outerloop, label %return
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
150
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 return:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
152 ret void
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 }