2011-06-14 Oliver Hunt <oliver@apple.com>
Reviewed by Gavin Barraclough.
Constant array literals result in unnecessarily large amounts of code
https://bugs.webkit.org/show_bug.cgi?id=62658
Add a new version of op_new_array that simply copies values from a buffer
we hang off of the CodeBlock, rather than generating code to place each
entry into the registerfile, and then copying it from the registerfile into
the array. This is a slight improvement on some sunspider tests, but no
measurable overall change. That's okay though as our goal was to reduce
code size without hurting performance.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::dump):
* bytecode/CodeBlock.h:
(JSC::CodeBlock::addImmediateBuffer):
(JSC::CodeBlock::immediateBuffer):
* bytecode/Opcode.h:
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::addImmediateBuffer):
(JSC::BytecodeGenerator::emitNewArray):
* bytecompiler/BytecodeGenerator.h:
* bytecompiler/NodesCodegen.cpp:
(JSC::ArrayNode::emitBytecode):
* interpreter/Interpreter.cpp:
(JSC::Interpreter::privateExecute):
* jit/JIT.cpp:
(JSC::JIT::privateCompileMainPass):
* jit/JIT.h:
* jit/JITOpcodes.cpp:
(JSC::JIT::emit_op_new_array):
(JSC::JIT::emit_op_new_array_buffer):
* jit/JITOpcodes32_64.cpp:
* jit/JITStubs.cpp:
(JSC::DEFINE_STUB_FUNCTION):
* jit/JITStubs.h:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@88873 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/jit/JIT.h b/Source/JavaScriptCore/jit/JIT.h
index 0833251..a2a1751 100644
--- a/Source/JavaScriptCore/jit/JIT.h
+++ b/Source/JavaScriptCore/jit/JIT.h
@@ -778,6 +778,7 @@
void emit_op_neq(Instruction*);
void emit_op_neq_null(Instruction*);
void emit_op_new_array(Instruction*);
+ void emit_op_new_array_buffer(Instruction*);
void emit_op_new_func(Instruction*);
void emit_op_new_func_exp(Instruction*);
void emit_op_new_object(Instruction*);
