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annotate test/Transforms/IndVarSimplify/loop-invariant-conditions.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children 3a76565eade5
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rev   line source
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 ; RUN: opt -S -indvars %s | FileCheck %s
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
3 target triple = "x86_64-unknown-linux-gnu"
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 define void @test1(i64 %start) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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6 ; CHECK-LABEL: @test1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
9
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 %indvars.iv.next = add nsw i64 %indvars.iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 ; CHECK: %cmp1 = icmp slt i64 %start, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 br i1 %cmp1, label %for.end, label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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19 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 define void @test2(i64 %start) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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22 ; CHECK-LABEL: @test2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
23 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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26 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 %indvars.iv.next = add nsw i64 %indvars.iv, 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
29 ; CHECK: %cmp1 = icmp sle i64 %start, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
30 %cmp1 = icmp sle i64 %indvars.iv, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
31 br i1 %cmp1, label %for.end, label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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33 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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34 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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35 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37 ; As long as the test dominates the backedge, we're good
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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38 define void @test3(i64 %start) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 ; CHECK-LABEL: @test3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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43 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 %indvars.iv.next = add nsw i64 %indvars.iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46 %cmp = icmp eq i64 %indvars.iv.next, 25
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 br i1 %cmp, label %backedge, label %for.end
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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 backedge:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 ; prevent flattening, needed to make sure we're testing what we intend
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 call void @foo()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 ; CHECK: %cmp1 = icmp slt i64 %start, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
53 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
54 br i1 %cmp1, label %for.end, label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
56 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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58 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60 define void @test4(i64 %start) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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61 ; CHECK-LABEL: @test4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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63 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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65 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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66 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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67 %indvars.iv.next = add nsw i64 %indvars.iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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68 %cmp = icmp eq i64 %indvars.iv.next, 25
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
69 br i1 %cmp, label %backedge, label %for.end
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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70
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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71 backedge:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
72 ; prevent flattening, needed to make sure we're testing what we intend
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
73 call void @foo()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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74 ; CHECK: %cmp1 = icmp sgt i64 %start, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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75 %cmp1 = icmp sgt i64 %indvars.iv, -1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
76 br i1 %cmp1, label %loop, label %for.end
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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77
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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78 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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79 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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80 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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81
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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82 define void @test5(i64 %start) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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83 ; CHECK-LABEL: @test5
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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84 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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85 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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86
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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87 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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88 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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89 %indvars.iv.next = add nuw i64 %indvars.iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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90 %cmp = icmp eq i64 %indvars.iv.next, 25
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
91 br i1 %cmp, label %backedge, label %for.end
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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92
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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93 backedge:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
94 ; prevent flattening, needed to make sure we're testing what we intend
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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95 call void @foo()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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96 ; CHECK: %cmp1 = icmp ugt i64 %start, 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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97 %cmp1 = icmp ugt i64 %indvars.iv, 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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98 br i1 %cmp1, label %loop, label %for.end
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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 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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101 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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102 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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103
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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104 define void @test6(i64 %start) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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105 ; CHECK-LABEL: @test6
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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106 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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107 br label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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108
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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109 loop:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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110 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
111 %indvars.iv.next = add nuw i64 %indvars.iv, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
112 %cmp = icmp eq i64 %indvars.iv.next, 25
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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113 br i1 %cmp, label %backedge, label %for.end
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
114
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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115 backedge:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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116 ; prevent flattening, needed to make sure we're testing what we intend
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
117 call void @foo()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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118 ; CHECK: %cmp1 = icmp ult i64 %start, 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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119 %cmp1 = icmp ult i64 %indvars.iv, 100
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
120 br i1 %cmp1, label %for.end, label %loop
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
121
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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122 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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123 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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124 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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125
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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126 define void @test7(i64 %start, i64* %inc_ptr) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 ; CHECK-LABEL: @test7
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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129 %inc = load i64, i64* %inc_ptr, !range !0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 %ok = icmp sge i64 %inc, 0
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 br i1 %ok, label %loop, label %for.end
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
132
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 %indvars.iv.next = add nsw i64 %indvars.iv, %inc
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136 ; CHECK: %cmp1 = icmp slt i64 %start, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 br i1 %cmp1, label %for.end, label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
139
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
142 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
143
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 !0 = !{i64 0, i64 100}
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
145
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 ; Negative test - we can't show that the internal branch executes, so we can't
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
147 ; fold the test to a loop invariant one.
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 define void @test1_neg(i64 %start) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 ; CHECK-LABEL: @test1_neg
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
152
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
154 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 %indvars.iv.next = add nsw i64 %indvars.iv, 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 %cmp = icmp eq i64 %indvars.iv.next, 25
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
157 br i1 %cmp, label %backedge, label %skip
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 skip:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 ; prevent flattening, needed to make sure we're testing what we intend
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 call void @foo()
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
161 ; CHECK: %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
163 br i1 %cmp1, label %for.end, label %backedge
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 backedge:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 ; prevent flattening, needed to make sure we're testing what we intend
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 call void @foo()
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
168
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
172
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 ; Slightly subtle version of @test4 where the icmp dominates the backedge,
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 ; but the exit branch doesn't.
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
175 define void @test2_neg(i64 %start) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
176 ; CHECK-LABEL: @test2_neg
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
177 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
179
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 %indvars.iv.next = add nsw i64 %indvars.iv, 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 %cmp = icmp eq i64 %indvars.iv.next, 25
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 ; CHECK: %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 br i1 %cmp, label %backedge, label %skip
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
187 skip:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
188 ; prevent flattening, needed to make sure we're testing what we intend
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 call void @foo()
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 br i1 %cmp1, label %for.end, label %backedge
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
191 backedge:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 ; prevent flattening, needed to make sure we're testing what we intend
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 call void @foo()
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
195
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
196 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
198 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
199
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
200 ; The branch has to exit the loop if the condition is true
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
201 define void @test3_neg(i64 %start) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 ; CHECK-LABEL: @test3_neg
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
204 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
205
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
206 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
208 %indvars.iv.next = add nsw i64 %indvars.iv, 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 ; CHECK: %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
211 br i1 %cmp1, label %loop, label %for.end
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
212
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
213 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
214 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
215 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
216
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 define void @test4_neg(i64 %start) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 ; CHECK-LABEL: @test4_neg
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
219 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
220 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
221
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
222 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
223 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %backedge ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
224 %indvars.iv.next = add nsw i64 %indvars.iv, 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
225 %cmp = icmp eq i64 %indvars.iv.next, 25
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
226 br i1 %cmp, label %backedge, label %for.end
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
227
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
228 backedge:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
229 ; prevent flattening, needed to make sure we're testing what we intend
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
230 call void @foo()
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
231 ; CHECK: %cmp1 = icmp sgt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
232 %cmp1 = icmp sgt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
233
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
234 ; %cmp1 can be made loop invariant only if the branch below goes to
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 ; %the header when %cmp1 is true.
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
236 br i1 %cmp1, label %for.end, label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
237
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
240 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
241
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
242 define void @test5_neg(i64 %start, i64 %inc) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 ; CHECK-LABEL: @test5_neg
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
244 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
245 br label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
246
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
247 loop:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
248 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
249 %indvars.iv.next = add nsw i64 %indvars.iv, %inc
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
250 ; CHECK: %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
251 %cmp1 = icmp slt i64 %indvars.iv, -1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
252 br i1 %cmp1, label %for.end, label %loop
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
253
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
254 for.end: ; preds = %if.end, %entry
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
255 ret void
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
256 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
257
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
258 define void @test8(i64 %start, i64* %inc_ptr) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
259 ; CHECK-LABEL: @test8
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
260 entry:
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
261 %inc = load i64, i64* %inc_ptr, !range !1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
262 %ok = icmp sge i64 %inc, 0
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263 br i1 %ok, label %loop, label %for.end
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264
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265 loop:
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266 %indvars.iv = phi i64 [ %start, %entry ], [ %indvars.iv.next, %loop ]
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267 %indvars.iv.next = add nsw i64 %indvars.iv, %inc
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268 ; CHECK: %cmp1 = icmp slt i64 %indvars.iv, -1
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parents:
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269 %cmp1 = icmp slt i64 %indvars.iv, -1
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parents:
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270 br i1 %cmp1, label %for.end, label %loop
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parents:
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271
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272 for.end: ; preds = %if.end, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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273 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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274 }
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parents:
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275
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parents:
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276 !1 = !{i64 -1, i64 100}
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parents:
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277
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parents:
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278
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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279 declare void @foo()