Files
sdk/runtime/vm/os_test.cc
T
Ryan Macnak 8e7ffafbaf Reland "[vm, compiler] Reduce alignment of Instructions and remove some debugging trap instructions."
Further adjustments for simarm_x64.

Flutter Gallery:
ARM32
Instructions(CodeSize): 6979424 ->  6771856 (-2.97%)
Total(CodeSize):       10855163 -> 10363319 (-4.53%)
ARM64
Instructions(CodeSize): 7334368 ->  6817312 (-7.05%)
Total(CodeSize):       11505069 -> 10771431 (-6.37%)

Bug: https://github.com/dart-lang/sdk/issues/37103
Bug: https://github.com/dart-lang/sdk/issues/38452
Change-Id: I2bb44e7b2c002d53830b66cf4aedc4455c815326
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119440
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-10-17 21:45:38 +00:00

43 lines
1.2 KiB
C++

// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/os.h"
#include "platform/assert.h"
#include "platform/utils.h"
#include "vm/globals.h"
#include "vm/unit_test.h"
namespace dart {
VM_UNIT_TEST_CASE(SNPrint) {
char buffer[256];
int length;
length = Utils::SNPrint(buffer, 10, "%s", "foo");
EXPECT_EQ(3, length);
EXPECT_STREQ("foo", buffer);
length = Utils::SNPrint(buffer, 3, "%s", "foo");
EXPECT_EQ(3, length);
EXPECT_STREQ("fo", buffer);
length = Utils::SNPrint(buffer, 256, "%s%c%d", "foo", 'Z', 42);
EXPECT_EQ(6, length);
EXPECT_STREQ("fooZ42", buffer);
length = Utils::SNPrint(NULL, 0, "foo");
EXPECT_EQ(3, length);
}
// This test is expected to crash when it runs.
VM_UNIT_TEST_CASE_WITH_EXPECTATION(SNPrint_BadArgs, "Crash") {
int width = kMaxInt32;
int num = 7;
Utils::SNPrint(NULL, 0, "%*d%*d", width, num, width, num);
}
VM_UNIT_TEST_CASE(OsFuncs) {
EXPECT(Utils::IsPowerOfTwo(OS::ActivationFrameAlignment()));
int procs = OS::NumberOfAvailableProcessors();
EXPECT_LE(1, procs);
}
} // namespace dart