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[vm/fuzzer] Separate iteration limit

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Rationale:
The limit on the number of classes is the same as the number of methods
per class, leading to exponential growth of the generated program if
this limit is raised. This patch introduces an optional parameter to
increase the limit separately for different use cases.
Change-Id: Id74d00a47494162a67fd980c163243690c5c1ebb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/115004
Commit-Queue: Felicitas Hetzelt <felih@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
This commit is contained in:
Felicitas Hetzelt 2019-09-03 22:20:27 +00:00 committed by commit-bot@chromium.org
parent 6bcf67a6a2
commit 5db9c6f6cd
1 changed files with 4 additions and 4 deletions
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8
runtime/tools/dartfuzz/dartfuzz.dart
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@ -14,7 +14,7 @@ import 'dartfuzz_ffiapi.dart';
// Version of DartFuzz. Increase this each time changes are made
// to preserve the property that a given version of DartFuzz yields
// the same fuzzed program for a deterministic random seed.
const String version = '1.34';
const String version = '1.36';
// Restriction on statements and expressions.
const int stmtLength = 2;
@ -100,7 +100,7 @@ class DartFuzz {
globalVars = fillTypes1();
globalVars.addAll(DartType.allTypes); // always one each
globalMethods = fillTypes2();
classFields = fillTypes2();
classFields = fillTypes2(limit: 8);
classMethods = fillTypes3(classFields.length);
classParents = <int>[];
// Setup optional ffi methods and types.
@ -1293,9 +1293,9 @@ class DartFuzz {
return list;
}
List<List<DartType>> fillTypes2({bool isFfi = false}) {
List<List<DartType>> fillTypes2({bool isFfi = false, int limit = 4}) {
final list = <List<DartType>>[];
for (int i = 0, n = 1 + rand.nextInt(4); i < n; i++) {
for (int i = 0, n = 1 + rand.nextInt(limit); i < n; i++) {
list.add(fillTypes1(isFfi: isFfi));
}
return list;