b63dfdb2fd
Some temp register slots are only used in a short range at the begining of a statement or expression. They can be released earlier to save a slot for later use. After the change, we can see frame size reduced in the switch, class literal and ForOf tests. Bug: v8:12940 Change-Id: I17b412d89353206fc01248cb3eefd2c678bc4ebb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688565 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Yolanda Chen <yolanda.chen@intel.com> Cr-Commit-Position: refs/heads/main@{#81021}
188 lines
5.3 KiB
Plaintext
188 lines
5.3 KiB
Plaintext
#
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# Autogenerated by generate-bytecode-expectations.
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#
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---
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wrap: yes
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---
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snippet: "
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{
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class A {
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#a() { return 1; }
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}
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}
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"
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frame size: 6
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parameter count: 1
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bytecode array length: 46
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bytecodes: [
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B(CreateBlockContext), U8(0),
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B(PushContext), R(1),
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B(LdaConstant), U8(2),
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B(Star3),
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/* 30 E> */ B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(3), U8(1),
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B(StaCurrentContextSlot), U8(3),
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B(CreateClosure), U8(3), U8(0), U8(2),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(Star5),
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B(CreateClosure), U8(4), U8(1), U8(2),
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B(Star2),
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B(LdaConstant), U8(1),
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B(Star3),
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B(Mov), R(2), R(4),
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B(CallRuntime), U16(Runtime::kDefineClass), R(3), U8(3),
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B(Star3),
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B(PopContext), R(1),
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B(Mov), R(4), R(0),
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B(LdaUndefined),
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/* 77 S> */ B(Return),
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]
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constant pool: [
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["A"],
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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]
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handlers: [
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]
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---
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snippet: "
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{
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class D {
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#d() { return 1; }
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}
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class E extends D {
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#e() { return 2; }
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}
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}
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"
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frame size: 7
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parameter count: 1
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bytecode array length: 91
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bytecodes: [
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B(CreateBlockContext), U8(0),
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B(PushContext), R(2),
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B(LdaConstant), U8(2),
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B(Star4),
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/* 30 E> */ B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
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B(StaCurrentContextSlot), U8(3),
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B(CreateClosure), U8(3), U8(0), U8(2),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(Star6),
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B(CreateClosure), U8(4), U8(1), U8(2),
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B(Star3),
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B(LdaConstant), U8(1),
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B(Star4),
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B(Mov), R(3), R(5),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(3),
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B(Star4),
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B(PopContext), R(2),
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B(Mov), R(5), R(0),
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B(CreateBlockContext), U8(5),
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B(PushContext), R(2),
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B(LdaConstant), U8(7),
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B(Star4),
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/* 38 E> */ B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
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B(StaCurrentContextSlot), U8(3),
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B(CreateClosure), U8(8), U8(2), U8(2),
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B(StaCurrentContextSlot), U8(2),
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/* 93 E> */ B(CreateClosure), U8(9), U8(3), U8(2),
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B(Star3),
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B(LdaConstant), U8(6),
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B(Star4),
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B(Mov), R(3), R(5),
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B(Mov), R(0), R(6),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(3),
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B(Star4),
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B(PopContext), R(2),
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B(Mov), R(5), R(1),
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B(LdaUndefined),
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/* 126 S> */ B(Return),
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]
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constant pool: [
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["D"],
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["E"],
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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]
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handlers: [
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]
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---
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snippet: "
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{
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class A { foo() {} }
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class C extends A {
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#m() { return super.foo; }
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}
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}
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"
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frame size: 8
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parameter count: 1
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bytecode array length: 84
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bytecodes: [
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B(CreateBlockContext), U8(0),
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B(PushContext), R(2),
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B(LdaTheHole),
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B(Star6),
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/* 30 E> */ B(CreateClosure), U8(2), U8(0), U8(2),
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B(Star3),
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B(LdaConstant), U8(1),
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B(Star4),
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B(CreateClosure), U8(3), U8(1), U8(2),
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B(Star7),
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B(Mov), R(3), R(5),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(4),
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B(Star4),
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B(PopContext), R(2),
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B(Mov), R(5), R(0),
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B(CreateBlockContext), U8(4),
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B(PushContext), R(2),
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B(LdaConstant), U8(6),
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B(Star4),
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/* 38 E> */ B(CallRuntime), U16(Runtime::kCreatePrivateBrandSymbol), R(4), U8(1),
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B(StaCurrentContextSlot), U8(3),
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B(CreateClosure), U8(7), U8(2), U8(2),
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B(StaCurrentContextSlot), U8(2),
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/* 77 E> */ B(CreateClosure), U8(8), U8(3), U8(2),
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B(Star3),
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B(LdaConstant), U8(5),
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B(Star4),
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B(Mov), R(3), R(5),
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B(Mov), R(0), R(6),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(3),
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B(StaCurrentContextSlot), U8(4),
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B(Star4),
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B(Ldar), R(5),
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B(StaCurrentContextSlot), U8(5),
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B(PopContext), R(2),
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B(Star1),
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B(LdaUndefined),
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/* 118 S> */ B(Return),
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]
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constant pool: [
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["C"],
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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]
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handlers: [
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]
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