This reverts commit 7bf5d87017.
The lock introduced by this change in MallocHooksState is held across
a fork(), which causes deadlock in the child when execvpe() fails and
tries to acquire the lock when freeing memory.
Review-Url: https://codereview.chromium.org/2647793005 .
This CL removes the use of STL map from freelist.cc by adding
MallocDirectChainedHashMap in hash_map.h and adding an iterator for
BaseDirectChainedHashMap there.
It also removes a use of STL map from hash_table.h that was dead code.
R=johnmccutchan@google.com
Review URL: https://codereview.chromium.org/2083103002 .
Original CL: http://codereview.chromium.org/10872035/
It enables elimination of redundant expressions across
basic blocks.
Currently used for smi checks and class checks, but will
be extended to other expressions in a separate CL.
Additionally, this fixes a bug in the register allocator where
a blocked register was illegally assigned to an unallocated live range.
It also fixes a Mac compiler issue with the constructor of
DirectChainedHashMap.
Review URL: https://chromiumcodereview.appspot.com//10871060
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11302 260f80e4-7a28-3924-810f-c04153c831b5
This CL contains:
A new CheckClassComp instruction. Currently it is used only for instance loads:
(LoadInstanceFieldComp)
A pass LocalCSE that performs block-local common subexpression elimination. To identify
redundant expressions I use a hash map per basic block. Computations that do not have
side effects can participate in CSE. For now, I only enabled it for CheckClass.
Any computation that participates in CSE must implement the AttributesEqual function.
Other smaller fixes:
Places where we can pass the correct initial size for GrowableArrays
that have a known size. We should consider having a FixedLengthArray for this purpose.
Made the accessors ic_data() and set_ic_data() use a const ICData*.
Review URL: https://chromiumcodereview.appspot.com//10824349
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10948 260f80e4-7a28-3924-810f-c04153c831b5
Zachary Anderson