Version 3.9.12
Fix the negative lookup stub to handle deleted entries in a dictionary. (issue 1964)
Add a new API where the host can supply a callback function. The callback function can resolve the location of a return address on stack to the location where a return-address rewriting profiler stashed the original return address.
When compiling for-in pass correct context value to the increment instruction. (Chromium issue http://crbug.com/115646)
Update breakpoints set with partial file name after compile. (issue 1853)
git-svn-id: http://v8.googlecode.com/svn/trunk@10852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index de6fb95..6f79225 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -7070,7 +7070,7 @@
// not equal to the name and kProbes-th slot is not used (its name is the
// undefined value), it guarantees the hash table doesn't contain the
// property. It's true even if some slots represent deleted properties
- // (their names are the null value).
+ // (their names are the hole value).
for (int i = 0; i < kInlinedProbes; i++) {
// scratch0 points to properties hash.
// Compute the masked index: (hash + i + i * i) & mask.
@@ -7099,9 +7099,15 @@
__ Branch(done, eq, entity_name, Operand(tmp));
if (i != kInlinedProbes - 1) {
+ // Load the hole ready for use below:
+ __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex);
+
// Stop if found the property.
__ Branch(miss, eq, entity_name, Operand(Handle<String>(name)));
+ Label the_hole;
+ __ Branch(&the_hole, eq, entity_name, Operand(tmp));
+
// Check if the entry name is not a symbol.
__ lw(entity_name, FieldMemOperand(entity_name, HeapObject::kMapOffset));
__ lbu(entity_name,
@@ -7109,6 +7115,8 @@
__ And(scratch0, entity_name, Operand(kIsSymbolMask));
__ Branch(miss, eq, scratch0, Operand(zero_reg));
+ __ bind(&the_hole);
+
// Restore the properties.
__ lw(properties,
FieldMemOperand(receiver, JSObject::kPropertiesOffset));