tree 67e74b00f89a629c0f8251c4975916f80a40d915
parent 4ad0d71f4045babd1286d718138600b2adf45b21
author sbarati@apple.com <sbarati@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1632843173 +0000
committer sbarati@apple.com <sbarati@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1632843173 +0000

Make byte codes with arithmetic profiles switch to using an index instead of a pointer in metadata
https://bugs.webkit.org/show_bug.cgi?id=230798

Reviewed by Yusuke Suzuki.

This patch makes each bytecode that uses a BinaryArithProfile/UnaryArithProfile
have an index into a table instead of storing a pointer to the profile in its metadata.
Then, we can just load the profile using the index in the bytecode, which saves memory.

* bytecode/BytecodeList.rb:
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::finishCreation):
(JSC::CodeBlock::binaryArithProfileForPC):
(JSC::CodeBlock::unaryArithProfileForPC):
* bytecode/UnlinkedCodeBlock.cpp:
(JSC::UnlinkedCodeBlock::allocateSharedProfiles):
* bytecode/UnlinkedCodeBlock.h:
* bytecode/UnlinkedCodeBlockGenerator.cpp:
(JSC::UnlinkedCodeBlockGenerator::finalize):
* bytecode/UnlinkedCodeBlockGenerator.h:
(JSC::UnlinkedCodeBlockGenerator::addBinaryArithProfile):
(JSC::UnlinkedCodeBlockGenerator::addUnaryArithProfile):
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::emitUnaryOp):
(JSC::BytecodeGenerator::emitInc):
(JSC::BytecodeGenerator::emitDec):
* bytecompiler/BytecodeGenerator.h:
* jit/JITArithmetic.cpp:
(JSC::JIT::emit_op_negate):
(JSC::JIT::emit_op_add):
(JSC::JIT::emit_op_div):
(JSC::JIT::emit_op_mul):
(JSC::JIT::emit_op_sub):
* llint/LowLevelInterpreter.asm:
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
* runtime/CommonSlowPaths.cpp:
(JSC::updateArithProfileForUnaryArithOp):
(JSC::JSC_DEFINE_COMMON_SLOW_PATH):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@283168 268f45cc-cd09-0410-ab3c-d52691b4dbfc