1 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 2
2 ; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
4 @.str = private unnamed_addr constant [3 x i8] c"%x\00", align 1
6 define dso_local i32 @test_loop(ptr nocapture noundef readonly %x) {
7 ; CHECK-LABEL: 'test_loop'
8 ; CHECK-NEXT: Classifying expressions for: @test_loop
9 ; CHECK-NEXT: %i.03 = phi i64 [ 1, %entry ], [ %inc, %for.body ]
10 ; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.body> U: [1,10) S: [1,10) Exits: 9 LoopDispositions: { %for.body: Computable }
11 ; CHECK-NEXT: %conv = shl nuw nsw i64 %i.03, 32
12 ; CHECK-NEXT: --> {4294967296,+,4294967296}<nuw><nsw><%for.body> U: [4294967296,38654705665) S: [4294967296,38654705665) Exits: 38654705664 LoopDispositions: { %for.body: Computable }
13 ; CHECK-NEXT: %sext = add nsw i64 %conv, -4294967296
14 ; CHECK-NEXT: --> {0,+,4294967296}<nuw><nsw><%for.body> U: [0,34359738369) S: [0,34359738369) Exits: 34359738368 LoopDispositions: { %for.body: Computable }
15 ; CHECK-NEXT: %idxprom = ashr exact i64 %sext, 32
16 ; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%for.body> U: [0,9) S: [0,9) Exits: 8 LoopDispositions: { %for.body: Computable }
17 ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %x, i64 %idxprom
18 ; CHECK-NEXT: --> {%x,+,4}<nuw><%for.body> U: full-set S: full-set Exits: (32 + %x) LoopDispositions: { %for.body: Computable }
19 ; CHECK-NEXT: %0 = load i32, ptr %arrayidx, align 4
20 ; CHECK-NEXT: --> %0 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.body: Variant }
21 ; CHECK-NEXT: %call = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %0)
22 ; CHECK-NEXT: --> %call U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.body: Variant }
23 ; CHECK-NEXT: %inc = add nuw nsw i64 %i.03, 1
24 ; CHECK-NEXT: --> {2,+,1}<nuw><nsw><%for.body> U: [2,11) S: [2,11) Exits: 10 LoopDispositions: { %for.body: Computable }
25 ; CHECK-NEXT: Determining loop execution counts for: @test_loop
26 ; CHECK-NEXT: Loop %for.body: backedge-taken count is 8
27 ; CHECK-NEXT: Loop %for.body: constant max backedge-taken count is 8
28 ; CHECK-NEXT: Loop %for.body: symbolic max backedge-taken count is 8
29 ; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is 8
30 ; CHECK-NEXT: Predicates:
31 ; CHECK-NEXT: Loop %for.body: Trip multiple is 9
36 for.cond.cleanup: ; preds = %for.body
39 for.body: ; preds = %entry, %for.body
40 %i.03 = phi i64 [ 1, %entry ], [ %inc, %for.body ]
41 %conv = shl nuw nsw i64 %i.03, 32
42 %sext = add nsw i64 %conv, -4294967296
43 %idxprom = ashr exact i64 %sext, 32
44 %arrayidx = getelementptr inbounds i32, ptr %x, i64 %idxprom
45 %0 = load i32, ptr %arrayidx, align 4
46 %call = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %0)
47 %inc = add nuw nsw i64 %i.03, 1
48 %exitcond.not = icmp eq i64 %inc, 10
49 br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
52 declare noundef i32 @printf(ptr nocapture noundef readonly, ...)