Changes between Version 9 and Version 10 of squirrelfish

Timestamp:

Mar 25, 2008, 8:11:02 PM (17 years ago)

Author:

ggaren@apple.com

Comment:

--

squirrelfish

@@ -105 +105 @@
 Shrink instructions -- usually, don't need a whole word to store int values. Perhaps use tagging of opcodes to encode the first operand. Special work-around instructions when whole words are needed
 
+GCC is crazy:
+
+{{{
+For the program
+
+for (var i = 0; i < 100000000; ++i)
+    ;
+
+at r31276 of the squirrelfish branch, adding the line
+
+Machine.cpp:354         scopeChain = new (&returnInfo[6]) ScopeChain(function->scope()); // scope chain for this activation
+
+causes a ~25% slowdown
+
+We should write a reduction of this issue for the compiler team, and see what they have to say
+}}}
+