Reviewers: Søren Gjesse,
Description:
Augment trace-ic to provide information on patching inlined loads.
Please review this at http://codereview.chromium.org/2818023/show
SVN Base: http://v8.googlecode.com/svn/branches/bleeding_edge/
Affected files:
M src/ic.cc
Index: src/ic.cc
===================================================================
--- src/ic.cc (revision 4913)
+++ src/ic.cc (working copy)
@@ -731,11 +731,32 @@
if (index < 0) {
// Index is an offset from the end of the object.
int offset = map->instance_size() + (index * kPointerSize);
+ if (FLAG_trace_ic) PrintF("[LoadIC : patch %s ]\n",
*name->ToCString());
if (PatchInlinedLoad(address(), map, offset)) {
set_target(megamorphic_stub());
return lookup.holder()->FastPropertyAt(lookup.GetFieldIndex());
+ if (FLAG_trace_ic) {
+ PrintF("[LoadIC : inline patch %s]\n", *name->ToCString());
+ }
+ } else {
+ if (FLAG_trace_ic) {
+ PrintF("[LoadIC : no inline patch %s (patching failed)]\n",
+ *name->ToCString());
+ }
}
+ } else {
+ if (FLAG_trace_ic) {
+ PrintF("[LoadIC : no inline patch %s (not inobject)]\n",
+ *name->ToCString());
+ }
}
+ } else {
+ if (FLAG_use_ic && state == PREMONOMORPHIC) {
+ if (FLAG_trace_ic) {
+ PrintF("[LoadIC : no inline patch %s (not inlinable)]\n",
+ *name->ToCString());
+ }
+ }
}
// Update inline cache and stub cache.
--
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