Revision: 11021
Author: [email protected]
Date: Tue Mar 13 04:38:37 2012
Log: Experimental Profiler: tweak type info threshold.
Also included: simplify String.slice.
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com/9694033
http://code.google.com/p/v8/source/detail?r=11021
Modified:
/branches/bleeding_edge/src/flag-definitions.h
/branches/bleeding_edge/src/string.js
=======================================
--- /branches/bleeding_edge/src/flag-definitions.h Mon Mar 12 06:56:56 2012
+++ /branches/bleeding_edge/src/flag-definitions.h Tue Mar 13 04:38:37 2012
@@ -216,7 +216,7 @@
"weight back edges by jump distance for interrupt triggering")
DEFINE_int(interrupt_budget, 5900,
"execution budget before interrupt is triggered")
-DEFINE_int(type_info_threshold, 40,
+DEFINE_int(type_info_threshold, 15,
"percentage of ICs that must have type info to allow
optimization")
DEFINE_int(self_opt_count, 130, "call count before self-optimization")
=======================================
--- /branches/bleeding_edge/src/string.js Mon Feb 20 05:48:24 2012
+++ /branches/bleeding_edge/src/string.js Tue Mar 13 04:38:37 2012
@@ -554,14 +554,14 @@
}
} else {
if (start_i > s_len) {
- start_i = s_len;
+ return '';
}
}
if (end_i < 0) {
end_i += s_len;
if (end_i < 0) {
- end_i = 0;
+ return '';
}
} else {
if (end_i > s_len) {
@@ -569,12 +569,11 @@
}
}
- var num_c = end_i - start_i;
- if (num_c < 0) {
- num_c = 0;
+ if (end_i <= start_i) {
+ return '';
}
- return SubString(s, start_i, start_i + num_c);
+ return SubString(s, start_i, end_i);
}
--
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