Mercurial > hg > CbC > CbC_llvm

annotate test/Transforms/IndVarSimplify/tripcount_compute.ll @ 123:923c9a525fb0

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rename IListTest.cpp
author mir3636
date Thu, 30 Nov 2017 18:21:27 +0900
parents 54457678186b
children
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
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
2
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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3 ; These tests ensure that we can compute the trip count of various forms of
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 ; loops. If the trip count of the loop is computable, then we will know what
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 ; the exit value of the loop will be for some value, allowing us to substitute
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 ; it directly into users outside of the loop, making the loop dead.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
7
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 ; CHECK-LABEL: @linear_setne(
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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9 ; CHECK: ret i32 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
10
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 define i32 @linear_setne() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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12 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 loop: ; preds = %loop, %entry
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 %i.next = add i32 %i, 1 ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 %c = icmp ne i32 %i, 100 ; <i1> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
22 ret i32 %i
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
23 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 ; CHECK-LABEL: @linear_setne_2(
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
26 ; CHECK: ret i32 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
27
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 define i32 @linear_setne_2() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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29 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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30 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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31
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32 loop: ; preds = %loop, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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33 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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34 %i.next = add i32 %i, 2 ; <i32> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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35 %c = icmp ne i32 %i, 100 ; <i1> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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38 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 ret i32 %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ; CHECK-LABEL: @linear_setne_overflow(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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43 ; CHECK: ret i32 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 define i32 @linear_setne_overflow() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 br label %loop
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 loop: ; preds = %loop, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 %i = phi i32 [ 1024, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 %i.next = add i32 %i, 1024 ; <i32> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
52 %c = icmp ne i32 %i, 0 ; <i1> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
53 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
54
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56 ret i32 %i
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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58
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 ; CHECK-LABEL: @linear_setlt(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60 ; CHECK: ret i32 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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61
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 define i32 @linear_setlt() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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63 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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64 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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65
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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66 loop: ; preds = %loop, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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67 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
68 %i.next = add i32 %i, 1 ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
69 %c = icmp slt i32 %i, 100 ; <i1> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
70 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
71
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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72 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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73 ret i32 %i
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
74 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
75
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
76 ; CHECK-LABEL: @quadratic_setlt(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
77 ; CHECK: ret i32 34
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
78
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
79 define i32 @quadratic_setlt() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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80 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
81 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
82
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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83 loop: ; preds = %loop, %entry
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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84 %i = phi i32 [ 7, %entry ], [ %i.next, %loop ] ; <i32> [#uses=4]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
85 %i.next = add i32 %i, 3 ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
86 %i2 = mul i32 %i, %i ; <i32> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
87 %c = icmp slt i32 %i2, 1000 ; <i1> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
88 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
89
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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90 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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91 ret i32 %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
92 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
93
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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94 ; CHECK-LABEL: @chained(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
95 ; CHECK: ret i32 200
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
96
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
97 define i32 @chained() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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98 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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99 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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101 loop: ; preds = %loop, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
102 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
103 %i.next = add i32 %i, 1 ; <i32> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
104 %c = icmp ne i32 %i, 100 ; <i1> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
105 br i1 %c, label %loop, label %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
106
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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107 loopexit: ; preds = %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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108 br label %loop2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
109
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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110 loop2: ; preds = %loop2, %loopexit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
111 %j = phi i32 [ %i, %loopexit ], [ %j.next, %loop2 ] ; <i32> [#uses=3]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
112 %j.next = add i32 %j, 1 ; <i32> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
113 %c2 = icmp ne i32 %j, 200 ; <i1> [#uses=1]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
114 br i1 %c2, label %loop2, label %loopexit2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
115
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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116 loopexit2: ; preds = %loop2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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117 ret i32 %j
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
118 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
119
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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120 ; CHECK-LABEL: @chained4(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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121 ; CHECK: ret i32 400
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
122
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 define i32 @chained4() {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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124 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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125 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
126
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 loop: ; preds = %loop, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
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129 %i.next = add i32 %i, 1 ; <i32> [#uses=1]
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130 %c = icmp ne i32 %i.next, 100 ; <i1> [#uses=1]
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131 br i1 %c, label %loop, label %loopexit
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132
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133 loopexit: ; preds = %loop
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134 br label %loop2
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135
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136 loop2: ; preds = %loop2, %loopexit
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137 %j = phi i32 [ %i.next, %loopexit ], [ %j.next, %loop2 ] ; <i32> [#uses=3]
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138 %j.next = add i32 %j, 1 ; <i32> [#uses=1]
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139 %c2 = icmp ne i32 %j.next, 200 ; <i1> [#uses=1]
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140 br i1 %c2, label %loop2, label %loopexit2
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141
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142 loopexit2: ; preds = %loop
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143 br label %loop8
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144
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145 loop8: ; preds = %loop2, %loopexit
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146 %k = phi i32 [ %j.next, %loopexit2 ], [ %k.next, %loop8 ] ; <i32> [#uses=3]
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147 %k.next = add i32 %k, 1 ; <i32> [#uses=1]
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148 %c8 = icmp ne i32 %k.next, 300 ; <i1> [#uses=1]
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149 br i1 %c8, label %loop8, label %loopexit8
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150
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151 loopexit8: ; preds = %loop2
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152 br label %loop9
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153
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154 loop9: ; preds = %loop2, %loopexit
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155 %l = phi i32 [ %k.next, %loopexit8 ], [ %l.next, %loop9 ] ; <i32> [#uses=3]
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156 %l.next = add i32 %l, 1 ; <i32> [#uses=1]
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157 %c9 = icmp ne i32 %l.next, 400 ; <i1> [#uses=1]
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158 br i1 %c9, label %loop9, label %loopexit9
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159
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160 loopexit9: ; preds = %loop2
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161 ret i32 %l.next
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162 }
77
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163
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164 ; PR18449. Check that the early exit is reduced to never taken.
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165 ;
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166 ; CHECK-LABEL: @twoexit
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167 ; CHECK-LABEL: loop:
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168 ; CHECK: phi
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169 ; CHECK: br i1 false
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170 ; CHECK: br
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171 ; CHECK: ret
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172 define void @twoexit() {
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173 "function top level":
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174 br label %loop
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175
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176 loop: ; preds = %body, %"function top level"
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177 %0 = phi i64 [ 0, %"function top level" ], [ %2, %body ]
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178 %1 = icmp ugt i64 %0, 2
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179 br i1 %1, label %fail, label %body
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180
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181 fail: ; preds = %loop
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182 tail call void @bounds_fail()
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183 unreachable
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184
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185 body: ; preds = %loop
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186 %2 = add i64 %0, 1
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187 %3 = icmp slt i64 %2, 3
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188 br i1 %3, label %loop, label %out
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189
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190 out: ; preds = %body
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191 ret void
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192 }
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193 declare void @bounds_fail()