v8/test/cctest/interpreter/bytecode_expectations/BasicLoops.golden
Seth Brenith 7be64db45f Reland "[interpreter] Short Star bytecode"
This is a reland of cf93071c91

Original change's description:
> [interpreter] Short Star bytecode
>
> Design doc:
> https://docs.google.com/document/d/1g_NExMT78II_KnIYNa9MvyPYIj23qAiFUEsyemY5KRk/edit
>
> This change adds 16 new interpreter opcodes, kStar0 through kStar15, so
> that we can use a single byte to represent the common operation of
> storing to a low-numbered register. This generally reduces the quantity
> of bytecode generated on web sites by 8-9%.
>
> In order to not degrade speed, a couple of other changes are required:
>
> The existing lookahead logic to check for Star after certain other
> bytecode handlers is updated to check for these new short Star codes
> instead. Furthermore, that lookahead logic is updated to contain its own
> copy of the dispatch jump rather than merging control flow with the
> lookahead-failed case, to improve branch prediction.
>
> A bunch of constants use bytecode size in bytes as a proxy for the size
> or complexity of a function, and are adjusted downward proportionally to
> the decrease in generated bytecode size.
>
> Other small drive-by fix: update generate-bytecode-expectations to emit
> \n instead of \r\n on Windows.
>
> Change-Id: I6307c2b0f5794a3a1088bb0fb94f6e1615441ed5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2641180
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#72773}

Change-Id: I1afb670c25694498b3989de615858f984a8c7f6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2698057
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72821}
2021-02-17 16:18:26 +00:00

696 lines
15 KiB
Plaintext

#
# Autogenerated by generate-bytecode-expectations.
#
---
wrap: yes
---
snippet: "
var x = 0;
while (false) { x = 99; break; continue; }
return x;
"
frame size: 1
parameter count: 1
bytecode array length: 3
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 97 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
while (false) {
x = x + 1;
};
return x;
"
frame size: 1
parameter count: 1
bytecode array length: 3
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 86 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
var y = 1;
while (x < 10) {
y = y * 12;
x = x + 1;
if (x == 3) continue;
if (x == 4) break;
}
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 48
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 53 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 65 S> */ B(LdaSmi), I8(10),
/* 65 E> */ B(TestLessThan), R(0), U8(0),
B(JumpIfFalse), U8(35),
/* 75 S> */ B(Ldar), R(1),
/* 81 E> */ B(MulSmi), I8(12), U8(1),
B(Star1),
/* 89 S> */ B(Ldar), R(0),
/* 95 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 102 S> */ B(LdaSmi), I8(3),
/* 108 E> */ B(TestEqual), R(0), U8(3),
B(JumpIfFalse), U8(4),
/* 114 S> */ B(Jump), U8(11),
/* 126 S> */ B(LdaSmi), I8(4),
/* 132 E> */ B(TestEqual), R(0), U8(4),
B(JumpIfFalse), U8(4),
/* 138 S> */ B(Jump), U8(5),
/* 56 E> */ B(JumpLoop), U8(37), I8(0),
/* 147 S> */ B(Ldar), R(1),
/* 156 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var i = 0;
while (true) {
if (i < 0) continue;
if (i == 3) break;
if (i == 4) break;
if (i == 10) continue;
if (i == 5) break;
i = i + 1;
}
return i;
"
frame size: 1
parameter count: 1
bytecode array length: 58
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 62 S> */ B(LdaZero),
/* 68 E> */ B(TestLessThan), R(0), U8(0),
B(JumpIfFalse), U8(4),
/* 73 S> */ B(Jump), U8(44),
/* 85 S> */ B(LdaSmi), I8(3),
/* 91 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 97 S> */ B(Jump), U8(38),
/* 106 S> */ B(LdaSmi), I8(4),
/* 112 E> */ B(TestEqual), R(0), U8(2),
B(JumpIfFalse), U8(4),
/* 118 S> */ B(Jump), U8(29),
/* 127 S> */ B(LdaSmi), I8(10),
/* 133 E> */ B(TestEqual), R(0), U8(3),
B(JumpIfFalse), U8(4),
/* 140 S> */ B(Jump), U8(17),
/* 152 S> */ B(LdaSmi), I8(5),
/* 158 E> */ B(TestEqual), R(0), U8(4),
B(JumpIfFalse), U8(4),
/* 164 S> */ B(Jump), U8(11),
/* 173 S> */ B(Ldar), R(0),
/* 179 E> */ B(AddSmi), I8(1), U8(5),
B(Star0),
/* 45 E> */ B(JumpLoop), U8(50), I8(0),
/* 186 S> */ B(Ldar), R(0),
/* 195 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var i = 0;
while (true) {
while (i < 3) {
if (i == 2) break;
i = i + 1;
}
i = i + 1;
break;
}
return i;
"
frame size: 1
parameter count: 1
bytecode array length: 40
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 71 S> */ B(LdaSmi), I8(3),
/* 71 E> */ B(TestLessThan), R(0), U8(0),
B(JumpIfFalse), U8(19),
/* 82 S> */ B(LdaSmi), I8(2),
/* 88 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 94 S> */ B(Jump), U8(10),
/* 105 S> */ B(Ldar), R(0),
/* 111 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
B(Jump), U8(10),
/* 122 S> */ B(Ldar), R(0),
/* 128 E> */ B(AddSmi), I8(1), U8(3),
B(Star0),
/* 135 S> */ B(Jump), U8(5),
/* 45 E> */ B(JumpLoop), U8(32), I8(0),
/* 144 S> */ B(Ldar), R(0),
/* 153 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 10;
var y = 1;
while (x) {
y = y * 12;
x = x - 1;
}
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 28
bytecodes: [
/* 42 S> */ B(LdaSmi), I8(10),
B(Star0),
/* 54 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 64 S> */ B(Ldar), R(0),
B(JumpIfToBooleanFalse), U8(17),
/* 71 S> */ B(Ldar), R(1),
/* 77 E> */ B(MulSmi), I8(12), U8(0),
B(Star1),
/* 85 S> */ B(Ldar), R(0),
/* 91 E> */ B(SubSmi), I8(1), U8(1),
B(Star0),
/* 57 E> */ B(JumpLoop), U8(16), I8(0),
/* 98 S> */ B(Ldar), R(1),
/* 107 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
if (x == 6) continue;
x = x + 1;
} while (x < 10);
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 48
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 53 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 63 S> */ B(Ldar), R(1),
/* 69 E> */ B(MulSmi), I8(10), U8(0),
B(Star1),
/* 77 S> */ B(LdaSmi), I8(5),
/* 83 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 89 S> */ B(Jump), U8(27),
/* 98 S> */ B(LdaSmi), I8(6),
/* 104 E> */ B(TestEqual), R(0), U8(2),
B(JumpIfFalse), U8(4),
/* 110 S> */ B(Jump), U8(8),
/* 122 S> */ B(Ldar), R(0),
/* 128 E> */ B(AddSmi), I8(1), U8(3),
B(Star0),
/* 144 S> */ B(LdaSmi), I8(10),
/* 144 E> */ B(TestLessThan), R(0), U8(4),
B(JumpIfFalse), U8(5),
/* 56 E> */ B(JumpLoop), U8(37), I8(0),
/* 151 S> */ B(Ldar), R(1),
/* 160 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 10;
var y = 1;
do {
y = y * 12;
x = x - 1;
} while (x);
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 26
bytecodes: [
/* 42 S> */ B(LdaSmi), I8(10),
B(Star0),
/* 54 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 64 S> */ B(Ldar), R(1),
/* 70 E> */ B(MulSmi), I8(12), U8(0),
B(Star1),
/* 78 S> */ B(Ldar), R(0),
/* 84 E> */ B(SubSmi), I8(1), U8(1),
B(Star0),
/* 98 S> */ B(JumpIfToBooleanFalse), U8(5),
/* 57 E> */ B(JumpLoop), U8(14), I8(0),
/* 102 S> */ B(Ldar), R(1),
/* 111 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
x = x + 1;
if (x == 6) continue;
} while (false);
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 36
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 53 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 69 S> */ B(MulSmi), I8(10), U8(0),
B(Star1),
/* 77 S> */ B(LdaSmi), I8(5),
/* 83 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 89 S> */ B(Jump), U8(17),
/* 98 S> */ B(Ldar), R(0),
/* 104 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 111 S> */ B(LdaSmi), I8(6),
/* 117 E> */ B(TestEqual), R(0), U8(3),
B(JumpIfFalse), U8(4),
/* 123 S> */ B(Jump), U8(2),
/* 150 S> */ B(Ldar), R(1),
/* 159 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0; var y = 1;
do {
y = y * 10;
if (x == 5) break;
x = x + 1;
if (x == 6) continue;
} while (true);
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 41
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 53 S> */ B(LdaSmi), I8(1),
B(Star1),
/* 63 S> */ B(Ldar), R(1),
/* 69 E> */ B(MulSmi), I8(10), U8(0),
B(Star1),
/* 77 S> */ B(LdaSmi), I8(5),
/* 83 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 89 S> */ B(Jump), U8(20),
/* 98 S> */ B(Ldar), R(0),
/* 104 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 111 S> */ B(LdaSmi), I8(6),
/* 117 E> */ B(TestEqual), R(0), U8(3),
B(JumpIfFalse), U8(4),
/* 123 S> */ B(Jump), U8(2),
/* 56 E> */ B(JumpLoop), U8(30), I8(0),
/* 149 S> */ B(Ldar), R(1),
/* 158 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (;;) {
if (x == 1) break;
if (x == 2) continue;
x = x + 1;
}
"
frame size: 1
parameter count: 1
bytecode array length: 31
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 58 S> */ B(LdaSmi), I8(1),
/* 64 E> */ B(TestEqual), R(0), U8(0),
B(JumpIfFalse), U8(4),
/* 70 S> */ B(Jump), U8(20),
/* 79 S> */ B(LdaSmi), I8(2),
/* 85 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 91 S> */ B(Jump), U8(8),
/* 103 S> */ B(Ldar), R(0),
/* 109 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 45 E> */ B(JumpLoop), U8(24), I8(0),
B(LdaUndefined),
/* 116 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
for (var x = 0;;) {
if (x == 1) break;
if (x == 2) continue;
x = x + 1;
}
"
frame size: 1
parameter count: 1
bytecode array length: 31
bytecodes: [
/* 47 S> */ B(LdaZero),
B(Star0),
/* 56 S> */ B(LdaSmi), I8(1),
/* 62 E> */ B(TestEqual), R(0), U8(0),
B(JumpIfFalse), U8(4),
/* 68 S> */ B(Jump), U8(20),
/* 77 S> */ B(LdaSmi), I8(2),
/* 83 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 89 S> */ B(Jump), U8(8),
/* 101 S> */ B(Ldar), R(0),
/* 107 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 34 E> */ B(JumpLoop), U8(24), I8(0),
B(LdaUndefined),
/* 114 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (;; x = x + 1) {
if (x == 1) break;
if (x == 2) continue;
}
"
frame size: 1
parameter count: 1
bytecode array length: 31
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 68 S> */ B(LdaSmi), I8(1),
/* 74 E> */ B(TestEqual), R(0), U8(0),
B(JumpIfFalse), U8(4),
/* 80 S> */ B(Jump), U8(20),
/* 89 S> */ B(LdaSmi), I8(2),
/* 95 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 101 S> */ B(Jump), U8(2),
/* 55 S> */ B(Ldar), R(0),
/* 59 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 45 E> */ B(JumpLoop), U8(24), I8(0),
B(LdaUndefined),
/* 113 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
for (var x = 0;; x = x + 1) {
if (x == 1) break;
if (x == 2) continue;
}
"
frame size: 1
parameter count: 1
bytecode array length: 31
bytecodes: [
/* 47 S> */ B(LdaZero),
B(Star0),
/* 66 S> */ B(LdaSmi), I8(1),
/* 72 E> */ B(TestEqual), R(0), U8(0),
B(JumpIfFalse), U8(4),
/* 78 S> */ B(Jump), U8(20),
/* 87 S> */ B(LdaSmi), I8(2),
/* 93 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 99 S> */ B(Jump), U8(2),
/* 53 S> */ B(Ldar), R(0),
/* 57 E> */ B(AddSmi), I8(1), U8(2),
B(Star0),
/* 34 E> */ B(JumpLoop), U8(24), I8(0),
B(LdaUndefined),
/* 111 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var u = 0;
for (var i = 0; i < 100; i = i + 1) {
u = u + 1;
continue;
}
"
frame size: 2
parameter count: 1
bytecode array length: 30
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 58 S> */ B(LdaZero),
B(Star1),
/* 63 S> */ B(LdaSmi), I8(100),
/* 63 E> */ B(TestLessThan), R(1), U8(0),
B(JumpIfFalse), U8(19),
/* 85 S> */ B(Ldar), R(0),
/* 91 E> */ B(AddSmi), I8(1), U8(1),
B(Star0),
/* 98 S> */ B(Jump), U8(2),
/* 72 S> */ B(Ldar), R(1),
/* 76 E> */ B(AddSmi), I8(1), U8(2),
B(Star1),
/* 45 E> */ B(JumpLoop), U8(21), I8(0),
B(LdaUndefined),
/* 110 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var y = 1;
for (var x = 10; x; --x) {
y = y * 12;
}
return y;
"
frame size: 2
parameter count: 1
bytecode array length: 27
bytecodes: [
/* 42 S> */ B(LdaSmi), I8(1),
B(Star0),
/* 58 S> */ B(LdaSmi), I8(10),
B(Star1),
/* 62 S> */ B(Ldar), R(1),
B(JumpIfToBooleanFalse), U8(16),
/* 74 S> */ B(Ldar), R(0),
/* 80 E> */ B(MulSmi), I8(12), U8(0),
B(Star0),
/* 67 S> */ B(Ldar), R(1),
B(Dec), U8(1),
B(Star1),
/* 45 E> */ B(JumpLoop), U8(15), I8(0),
/* 88 S> */ B(Ldar), R(0),
/* 97 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (var i = 0; false; i++) {
x = x + 1;
};
return x;
"
frame size: 2
parameter count: 1
bytecode array length: 7
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 58 S> */ B(LdaZero),
B(Star1),
/* 91 S> */ B(Ldar), R(0),
/* 100 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var x = 0;
for (var i = 0; true; ++i) {
x = x + 1;
if (x == 20) break;
};
return x;
"
frame size: 2
parameter count: 1
bytecode array length: 30
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 58 S> */ B(LdaZero),
B(Star1),
/* 76 S> */ B(Ldar), R(0),
/* 82 E> */ B(AddSmi), I8(1), U8(0),
B(Star0),
/* 89 S> */ B(LdaSmi), I8(20),
/* 95 E> */ B(TestEqual), R(0), U8(1),
B(JumpIfFalse), U8(4),
/* 102 S> */ B(Jump), U8(10),
/* 69 S> */ B(Ldar), R(1),
B(Inc), U8(2),
B(Star1),
/* 45 E> */ B(JumpLoop), U8(20), I8(0),
/* 112 S> */ B(Ldar), R(0),
/* 121 S> */ B(Return),
]
constant pool: [
]
handlers: [
]
---
snippet: "
var a = 0;
while (a) {
{
let z = 1;
function f() { z = 2; }
if (z) continue;
z++;
}
}
"
frame size: 4
parameter count: 1
bytecode array length: 46
bytecodes: [
/* 42 S> */ B(LdaZero),
B(Star0),
/* 52 S> */ B(Ldar), R(0),
B(JumpIfToBooleanFalse), U8(40),
B(CreateBlockContext), U8(0),
B(PushContext), R(3),
B(LdaTheHole),
B(StaCurrentContextSlot), U8(2),
B(CreateClosure), U8(1), U8(0), U8(2),
B(Star2),
/* 73 S> */ B(LdaSmi), I8(1),
/* 73 E> */ B(StaCurrentContextSlot), U8(2),
/* 102 S> */ B(Mov), R(2), R(1),
/* 106 S> */ B(LdaCurrentContextSlot), U8(2),
B(JumpIfToBooleanFalse), U8(6),
/* 113 S> */ B(PopContext), R(3),
B(Jump), U8(10),
/* 126 S> */ B(LdaCurrentContextSlot), U8(2),
B(Inc), U8(0),
/* 127 E> */ B(StaCurrentContextSlot), U8(2),
B(PopContext), R(3),
/* 45 E> */ B(JumpLoop), U8(39), I8(0),
B(LdaUndefined),
/* 137 S> */ B(Return),
]
constant pool: [
SCOPE_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
]
handlers: [
]