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Unify fuzzer random number generation into a single class

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BUG=tint:1098

Change-Id: I84931804515487d931bbbb5f0d5239d03ca76dfc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63300
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Alastair Donaldson <afdx@google.com>
This commit is contained in:
Ryan Harrison
2021-09-03 00:59:35 +00:00
committed by Tint LUCI CQ
parent 6a1eb45961
commit 5dc0ea7cce
26 changed files with 265 additions and 309 deletions
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11
fuzzers/tint_regex_fuzzer/fuzzer.cc
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@@ -16,12 +16,11 @@
#include <cstddef>
#include <cstdint>
#include "fuzzers/random_generator.h"
#include "fuzzers/tint_common_fuzzer.h"
#include "fuzzers/tint_regex_fuzzer/cli.h"
#include "fuzzers/tint_regex_fuzzer/override_cli_params.h"
#include "fuzzers/tint_regex_fuzzer/util.h"
#include "fuzzers/tint_regex_fuzzer/wgsl_mutator.h"
#include "src/reader/wgsl/parser.h"
#include "src/writer/wgsl/generator.h"
@@ -57,13 +56,13 @@ extern "C" size_t LLVMFuzzerCustomMutator(uint8_t* data,
unsigned seed) {
std::string wgsl_code(data, data + size);
const std::vector<std::string> delimiters{";"};
std::mt19937 generator(seed);
RandomGenerator generator(seed);
std::string delimiter =
delimiters[GetRandomIntFromRange(0, delimiters.size() - 1, generator)];
delimiters[generator.GetUInt64(delimiters.size() - 1u)];
MutationKind mutation_kind = static_cast<MutationKind>(GetRandomIntFromRange(
0, static_cast<size_t>(MutationKind::kNumMutationKinds) - 1, generator));
MutationKind mutation_kind = static_cast<MutationKind>(generator.GetUInt64(
static_cast<size_t>(MutationKind::kNumMutationKinds) - 1u));
switch (mutation_kind) {
case MutationKind::kSwapIntervals: