fschneider@chromium.org
89e74000a0
Use typefeedback for bitwise operations.
...
Add a generic tagged version for all bitwise operation that
invoke the generic stub. This allows us to perform generic
bitwise operations (i.e. on non-integers) without deoptimizing.
Review URL: http://codereview.chromium.org/6366006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-01-20 12:47:22 +00:00
lrn@chromium.org
d2df943bde
Merge changes to LTemplateInstruction to X64 (Issue 1048).
...
Implement ConstantD and ConstantI.
BUG=1048
Review URL: http://codereview.chromium.org/6262005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-01-17 13:51:59 +00:00
antonm@chromium.org
fae90d4f32
Make closures optimizable by Crankshaft compiler.
...
Currently only closures which only read from the context are supported.
Review URL: http://codereview.chromium.org/5753005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-01-17 08:11:03 +00:00
fschneider@chromium.org
6cc0310a72
Mark map-transition stores as map-changing instructions.
...
This prevents code motion from hoisting map-checks across such stores
which may result in unnecessary deoptimizations.
In the following example program we would move a map-check from the inner loop out before the outer loop which is not desirable:
function f() {
var o = {};
var j = 0;
o.a = 1;
do {
o.b = 6; // Map transition
for (var i=0; i<10; i++) {
o.a = o.b + i;
}
} while(++j < 1) {}
}
for (var i = 0; i < 1000000; i++) f();
Review URL: http://codereview.chromium.org/5991001
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-17 13:44:19 +00:00
fschneider@chromium.org
73737fcdb6
Fix bugs in the range analysis for integers.
...
The overflow conditions were not correctly detected for
certain add, sub and mul instructions.
I replaced the previous code by using 64-bit arithmetic
to correctly identify overflows for *, + and -.
Review URL: http://codereview.chromium.org/5860009
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-16 18:01:36 +00:00
kasperl@chromium.org
90b3370374
Update V8 to version 3.0 (re-land r5920).
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-07 11:31:57 +00:00
kasperl@chromium.org
51b494d096
Revert r5920. Will re-land shortly.
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-07 11:01:02 +00:00
kasperl@chromium.org
e5860bd6a8
Update V8 to version 3.0.
...
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-07 09:11:56 +00:00
