fschneider@google.com e174a4c18e Fix a compiler bug caused by Utils::IsPowerOfTwo treating zero as a power of two. ...

The IsPowerOfTwo function is used together with ShiftForPowerOfTwo.  Both function
do not work with zero. This caused the optimizing compiler to generate invalid code
for the expression

x ? 0 : 0

where it assumed that if one of the constants is a power-of-two, it can
be computed by (1 << n). We check for 0 in a number of places, but instead
I decided to fix Utils::IsPowerOfTwo itself and remove unnecessary checks
for the zero case.

TEST=tests/language/vm/if_conversion_vm_test.dart, runtime/vm/utils_test.cc
R=kmillikin@google.com

Review URL: https://codereview.chromium.org//23604024

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27033 260f80e4-7a28-3924-810f-c04153c831b5

2013-09-03 09:28:34 +00:00

..

assert.cc

Fix Android build breaks

2012-09-21 22:04:37 +00:00

assert.h

Replace scalarlist optimizations and split external array loads into two IL instructions.

2013-03-19 12:06:23 +00:00

c99_support_win.h

Fix performance of parsing Mints.

2013-04-19 20:22:26 +00:00

floating_point_win.cc

Prepare for removal of source_filter.gypi:

2013-02-20 21:17:38 +00:00

floating_point_win.h

Fix floating point issues on Windows.

2012-11-29 22:40:12 +00:00

floating_point.h

Fix floating point issues on Windows.

2012-11-29 22:40:12 +00:00

globals.h

Begins implementation of ARM neon instructions.

2013-07-12 23:22:50 +00:00

hashmap.cc

Put HashMap class in dart namespace.

2013-04-30 11:48:48 +00:00

hashmap.h

Put HashMap class in dart namespace.

2013-04-30 11:48:48 +00:00

inttypes_support_win.h

Move inttypes.h compatibility definitions for Win32 out of globals.h.

2012-09-07 00:05:47 +00:00

json.cc

JSON string decoding for VM debugger

2013-08-26 20:59:16 +00:00

json.h

JSON string decoding for VM debugger

2013-08-26 20:59:16 +00:00

platform_headers.gypi

Fix floating point issues on Windows.

2012-11-29 22:40:12 +00:00

platform_sources.gypi

Fix floating point issues on Windows.

2012-11-29 22:40:12 +00:00

thread_android.cc

Replaced strerror() calls with threadsafe strerror_r().

2013-08-08 20:24:05 +00:00

thread_android.h

Add _android files for building DartVM on Android

2012-08-13 23:06:52 +00:00

thread_linux.cc

Replaced strerror() calls with threadsafe strerror_r().

2013-08-08 20:24:05 +00:00

thread_linux.h

…

thread_macos.cc

Replaced strerror() calls with threadsafe strerror_r().

2013-08-08 20:24:05 +00:00

thread_macos.h

…

thread_win.cc

Add Windows error code reporting printing format fix in runtime.

2013-08-19 09:27:42 +00:00

thread_win.h

Fix file descriptor leak in event handler implementation. When shutting down an isolate, we did not destruct the eventhandler so we leaked the file descriptors for it.

2013-03-13 11:11:38 +00:00

thread.h

Add _android files for building DartVM on Android

2012-08-13 23:06:52 +00:00

utils_android.h

Add utilities for converting from Host endianity to big endian and little endian formats for the various OSs.

2013-04-16 23:29:26 +00:00

utils_linux.h

Add utilities for converting from Host endianity to big endian and little endian formats for the various OSs.

2013-04-16 23:29:26 +00:00

utils_macos.h

Add utilities for converting from Host endianity to big endian and little endian formats for the various OSs.

2013-04-16 23:29:26 +00:00

utils_win.h

Add utilities for converting from Host endianity to big endian and little endian formats for the various OSs.

2013-04-16 23:29:26 +00:00

utils.cc

Support constant folding of instructions with constant smi values.

2012-09-24 13:14:54 +00:00

utils.h

Fix a compiler bug caused by Utils::IsPowerOfTwo treating zero as a power of two.

2013-09-03 09:28:34 +00:00