31d2bb8670
Fix 1: Track Scope::needs_home_object and Scope::uses_super_property accurately. When "eval" is seen, figure out whether it can access "super" and if yes, set the corresponding home object as needed. Fix 2: The object literal scope shouldn't be entered for things inside spreads. Original: https://chromium-review.googlesource.com/c/v8/v8/+/2563275 Previous reland: https://chromium-review.googlesource.com/c/v8/v8/+/2637220 This saves memory (the home object doesn't need to be stored for each method, but only once per class) and hopefully makes the home object a constant in the optimized code. Detailed documentation of the changes: https://docs.google.com/document/d/1ZVXcoQdf9IdMsnRI9iyUjyq9NDoEyx9nA3XqMgwflMs/edit?usp=sharing Bug: v8:9237 Bug: chromium:1167918 Bug: chromium:1167981 Bug: chromium:1167988 Bug: chromium:1168055 Bug: chromium:1171195 Bug: chromium:1171600 Change-Id: I9686e0d90cd0c1128757eca440a88748897ee91e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2655509 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#72422}
188 lines
5.4 KiB
Plaintext
188 lines
5.4 KiB
Plaintext
#
|
|
# Autogenerated by generate-bytecode-expectations.
|
|
#
|
|
|
|
---
|
|
wrap: yes
|
|
|
|
---
|
|
snippet: "
|
|
{
|
|
class A {
|
|
#a() { return 1; }
|
|
}
|
|
}
|
|
"
|
|
frame size: 7
|
|
parameter count: 1
|
|
bytecode array length: 51
|
|
bytecodes: [
|
|
/* 30 E> */ B(CreateBlockContext), U8(0),
|
|
B(PushContext), R(1),
|
|
B(LdaConstant), U8(2),
|
|
B(Star), R(3),
|
|
B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(3), U8(1),
|
|
B(StaCurrentContextSlot), U8(3),
|
|
B(CreateClosure), U8(3), U8(0), U8(2),
|
|
B(StaCurrentContextSlot), U8(2),
|
|
B(LdaTheHole),
|
|
B(Star), R(6),
|
|
B(CreateClosure), U8(4), U8(1), U8(2),
|
|
B(Star), R(2),
|
|
B(LdaConstant), U8(1),
|
|
B(Star), R(4),
|
|
B(Mov), R(2), R(5),
|
|
B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(3),
|
|
B(Star), R(4),
|
|
B(PopContext), R(1),
|
|
B(Mov), R(5), R(0),
|
|
B(LdaUndefined),
|
|
/* 77 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SCOPE_INFO_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["A"],
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
{
|
|
class D {
|
|
#d() { return 1; }
|
|
}
|
|
class E extends D {
|
|
#e() { return 2; }
|
|
}
|
|
}
|
|
"
|
|
frame size: 8
|
|
parameter count: 1
|
|
bytecode array length: 100
|
|
bytecodes: [
|
|
/* 30 E> */ B(CreateBlockContext), U8(0),
|
|
B(PushContext), R(2),
|
|
B(LdaConstant), U8(2),
|
|
B(Star), R(4),
|
|
B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
|
|
B(StaCurrentContextSlot), U8(3),
|
|
B(CreateClosure), U8(3), U8(0), U8(2),
|
|
B(StaCurrentContextSlot), U8(2),
|
|
B(LdaTheHole),
|
|
B(Star), R(7),
|
|
B(CreateClosure), U8(4), U8(1), U8(2),
|
|
B(Star), R(3),
|
|
B(LdaConstant), U8(1),
|
|
B(Star), R(5),
|
|
B(Mov), R(3), R(6),
|
|
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(3),
|
|
B(Star), R(5),
|
|
B(PopContext), R(2),
|
|
B(Mov), R(6), R(0),
|
|
/* 38 E> */ B(CreateBlockContext), U8(5),
|
|
B(PushContext), R(2),
|
|
B(LdaConstant), U8(7),
|
|
B(Star), R(4),
|
|
B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
|
|
B(StaCurrentContextSlot), U8(3),
|
|
B(CreateClosure), U8(8), U8(2), U8(2),
|
|
B(StaCurrentContextSlot), U8(2),
|
|
/* 93 E> */ B(CreateClosure), U8(9), U8(3), U8(2),
|
|
B(Star), R(3),
|
|
B(LdaConstant), U8(6),
|
|
B(Star), R(5),
|
|
B(Mov), R(3), R(6),
|
|
B(Mov), R(0), R(7),
|
|
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(3),
|
|
B(Star), R(5),
|
|
B(PopContext), R(2),
|
|
B(Mov), R(6), R(1),
|
|
B(LdaUndefined),
|
|
/* 126 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SCOPE_INFO_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["D"],
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SCOPE_INFO_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["E"],
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
{
|
|
class A { foo() {} }
|
|
class C extends A {
|
|
#m() { return super.foo; }
|
|
}
|
|
}
|
|
"
|
|
frame size: 8
|
|
parameter count: 1
|
|
bytecode array length: 94
|
|
bytecodes: [
|
|
/* 30 E> */ B(CreateBlockContext), U8(0),
|
|
B(PushContext), R(2),
|
|
B(LdaTheHole),
|
|
B(Star), R(6),
|
|
B(CreateClosure), U8(2), U8(0), U8(2),
|
|
B(Star), R(3),
|
|
B(LdaConstant), U8(1),
|
|
B(Star), R(4),
|
|
B(CreateClosure), U8(3), U8(1), U8(2),
|
|
B(Star), R(7),
|
|
B(Mov), R(3), R(5),
|
|
B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(4),
|
|
B(Star), R(4),
|
|
B(PopContext), R(2),
|
|
B(Mov), R(5), R(0),
|
|
/* 38 E> */ B(CreateBlockContext), U8(4),
|
|
B(PushContext), R(2),
|
|
B(LdaConstant), U8(6),
|
|
B(Star), R(4),
|
|
B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
|
|
B(StaCurrentContextSlot), U8(3),
|
|
B(CreateClosure), U8(7), U8(2), U8(2),
|
|
B(StaCurrentContextSlot), U8(2),
|
|
/* 77 E> */ B(CreateClosure), U8(8), U8(3), U8(2),
|
|
B(Star), R(3),
|
|
B(LdaConstant), U8(5),
|
|
B(Star), R(5),
|
|
B(Mov), R(3), R(6),
|
|
B(Mov), R(0), R(7),
|
|
B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(3),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
B(Star), R(5),
|
|
B(Ldar), R(6),
|
|
B(StaCurrentContextSlot), U8(5),
|
|
B(PopContext), R(2),
|
|
B(Star), R(1),
|
|
B(LdaUndefined),
|
|
/* 118 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SCOPE_INFO_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SCOPE_INFO_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["C"],
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
]
|
|
|