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Bytecode enum named oparg by ShaharNaveh · Pull Request #7294 · RustPython/RustPython · GitHub

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Bytecode enum named oparg #7294

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Merged
youknowone merged 26 commits into from
Mar 3, 2026
Conversation 4 Commits 26 Checks 12 Files changed
Merged

Bytecode enum named oparg #7294

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59a8471
Align real opcodes
ShaharNaveh Mar 1, 2026
5c99d26
Align pseudoes
ShaharNaveh Mar 1, 2026
511bc2e
fix fmt_dis
ShaharNaveh Mar 1, 2026
6b9966b
Compiler compiles
ShaharNaveh Mar 1, 2026
ac64b1a
Fix some of ir
ShaharNaveh Mar 1, 2026
927daa1
Fix some of compile.rs
ShaharNaveh Mar 1, 2026
8845094
codegen compiles
ShaharNaveh Mar 1, 2026
bf1dcfa
VM compiles
ShaharNaveh Mar 2, 2026
6983124
Merge remote-tracking branch 'upstream/main' into bytecode-enum-named…
ShaharNaveh Mar 2, 2026
18b0dfa
Fix compiler-core
ShaharNaveh Mar 2, 2026
96dd420
fix merge
ShaharNaveh Mar 2, 2026
ede9094
fix more merge
ShaharNaveh Mar 2, 2026
0bf36db
fix stdlib
ShaharNaveh Mar 2, 2026
aad0560
Fix some jit
ShaharNaveh Mar 2, 2026
8af88fe
Fix more jit
ShaharNaveh Mar 2, 2026
358d466
Fix some jit tests
ShaharNaveh Mar 2, 2026
cf22b78
More jit fixes
ShaharNaveh Mar 2, 2026
64a3ef8
Make sure no instruction is emitted using `Foo(val)`
ShaharNaveh Mar 2, 2026
de0a702
Add comment
ShaharNaveh Mar 2, 2026
faf47b3
Merge remote-tracking branch 'upstream/main' into bytecode-enum-named…
ShaharNaveh Mar 2, 2026
ffe71f9
Fix typo
ShaharNaveh Mar 2, 2026
a828ab1
Add `consti` to known words
ShaharNaveh Mar 2, 2026
04b7c4a
Merge remote-tracking branch 'upstream/main' into bytecode-enum-named…
ShaharNaveh Mar 3, 2026
f9e5530
Merge remote-tracking branch 'upstream/main' into bytecode-enum-named…
ShaharNaveh Mar 3, 2026
7865718
Fix more
ShaharNaveh Mar 3, 2026
0ae8b08
Fix bad merge
ShaharNaveh Mar 3, 2026
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1 change: 1 addition & 0 deletions .cspell.dict/cpython.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ CODEUNIT
CONIN
CONOUT
constevaluator
consti
CONVFUNC
convparam
copyslot
Expand Down
842 changes: 449 additions & 393 deletions crates/codegen/src/compile.rs
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63 changes: 39 additions & 24 deletions crates/codegen/src/ir.rs
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Expand Up @@ -387,19 +387,19 @@ impl CodeInfo {
op = match op {
Instruction::JumpForward { .. } if target_offset <= current_offset => {
Instruction::JumpBackward {
target: Arg::marker(),
delta: Arg::marker(),
}
}
Instruction::JumpBackward { .. } if target_offset > current_offset => {
Instruction::JumpForward {
target: Arg::marker(),
delta: Arg::marker(),
}
}
Instruction::JumpBackwardNoInterrupt { .. }
if target_offset > current_offset =>
{
Instruction::JumpForward {
target: Arg::marker(),
delta: Arg::marker(),
}
}
_ => op,
Expand Down Expand Up @@ -632,7 +632,10 @@ impl CodeInfo {
}

// Replace BUILD_TUPLE with LOAD_CONST
block.instructions[i].instr = Instruction::LoadConst { idx: Arg::marker() }.into();
block.instructions[i].instr = Instruction::LoadConst {
consti: Arg::marker(),
}
.into();
block.instructions[i].arg = OpArg::new(const_idx as u32);

i += 1;
Expand All @@ -659,27 +662,31 @@ impl CodeInfo {

match (curr_instr, next_instr) {
// LoadFast + LoadFast -> LoadFastLoadFast (if both indices < 16)
(Instruction::LoadFast(_), Instruction::LoadFast(_)) => {
(Instruction::LoadFast { .. }, Instruction::LoadFast { .. }) => {
let idx1 = u32::from(curr.arg);
let idx2 = u32::from(next.arg);
if idx1 < 16 && idx2 < 16 {
let packed = (idx1 << 4) | idx2;
Some((
Instruction::LoadFastLoadFast { arg: Arg::marker() },
Instruction::LoadFastLoadFast {
var_nums: Arg::marker(),
},
OpArg::new(packed),
))
} else {
None
}
}
// StoreFast + StoreFast -> StoreFastStoreFast (if both indices < 16)
(Instruction::StoreFast(_), Instruction::StoreFast(_)) => {
(Instruction::StoreFast { .. }, Instruction::StoreFast { .. }) => {
let idx1 = u32::from(curr.arg);
let idx2 = u32::from(next.arg);
if idx1 < 16 && idx2 < 16 {
let packed = (idx1 << 4) | idx2;
Some((
Instruction::StoreFastStoreFast { arg: Arg::marker() },
Instruction::StoreFastStoreFast {
var_nums: Arg::marker(),
},
OpArg::new(packed),
))
} else {
Expand Down Expand Up @@ -712,7 +719,7 @@ impl CodeInfo {
let curr = &block.instructions[i];
let next = &block.instructions[i + 1];

let (Some(Instruction::LoadGlobal(_)), Some(Instruction::PushNull)) =
let (Some(Instruction::LoadGlobal { .. }), Some(Instruction::PushNull)) =
(curr.instr.real(), next.instr.real())
else {
i += 1;
Expand Down Expand Up @@ -755,7 +762,7 @@ impl CodeInfo {
// Check if it's in small int range: -5 to 256 (_PY_IS_SMALL_INT)
if let Some(small) = value.to_i32().filter(|v| (-5..=256).contains(v)) {
// Convert LOAD_CONST to LOAD_SMALL_INT
instr.instr = Instruction::LoadSmallInt { idx: Arg::marker() }.into();
instr.instr = Instruction::LoadSmallInt { i: Arg::marker() }.into();
// The arg is the i32 value stored as u32 (two's complement)
instr.arg = OpArg::new(small as u32);
}
Expand Down Expand Up @@ -895,7 +902,7 @@ impl CodeInfo {

// Push values to stack with source instruction index
let source = match instr {
Instruction::LoadFast(_) | Instruction::LoadFastLoadFast { .. } => i,
Instruction::LoadFast { .. } | Instruction::LoadFastLoadFast { .. } => i,
_ => NOT_LOCAL,
};
for _ in 0..pushes {
Expand Down Expand Up @@ -923,12 +930,17 @@ impl CodeInfo {
continue;
};
match instr {
Instruction::LoadFast(_) => {
info.instr = Instruction::LoadFastBorrow(Arg::marker()).into();
Instruction::LoadFast { .. } => {
info.instr = Instruction::LoadFastBorrow {
var_num: Arg::marker(),
}
.into();
}
Instruction::LoadFastLoadFast { .. } => {
info.instr =
Instruction::LoadFastBorrowLoadFastBorrow { arg: Arg::marker() }.into();
info.instr = Instruction::LoadFastBorrowLoadFastBorrow {
var_nums: Arg::marker(),
}
.into();
}
_ => {}
}
Expand Down Expand Up @@ -1415,7 +1427,7 @@ fn push_cold_blocks_to_end(blocks: &mut Vec<Block>) {
};
jump_block.instructions.push(InstructionInfo {
instr: PseudoInstruction::JumpNoInterrupt {
target: Arg::marker(),
delta: Arg::marker(),
}
.into(),
arg: OpArg::new(0),
Expand Down Expand Up @@ -1566,25 +1578,25 @@ fn normalize_jumps(blocks: &mut [Block]) {
AnyInstruction::Pseudo(PseudoInstruction::Jump { .. }) => {
if target_pos > source_pos {
Instruction::JumpForward {
target: Arg::marker(),
delta: Arg::marker(),
}
.into()
} else {
Instruction::JumpBackward {
target: Arg::marker(),
delta: Arg::marker(),
}
.into()
}
}
AnyInstruction::Pseudo(PseudoInstruction::JumpNoInterrupt { .. }) => {
if target_pos > source_pos {
Instruction::JumpForward {
target: Arg::marker(),
delta: Arg::marker(),
}
.into()
} else {
Instruction::JumpBackwardNoInterrupt {
target: Arg::marker(),
delta: Arg::marker(),
}
.into()
}
Expand Down Expand Up @@ -1750,18 +1762,21 @@ pub(crate) fn convert_pseudo_ops(blocks: &mut [Block], varnames_len: u32) {
info.instr = Instruction::Nop.into();
}
// LOAD_CLOSURE → LOAD_FAST (with varnames offset)
PseudoInstruction::LoadClosure(idx) => {
let new_idx = varnames_len + idx.get(info.arg);
PseudoInstruction::LoadClosure { i } => {
let new_idx = varnames_len + i.get(info.arg);
info.arg = OpArg::new(new_idx);
info.instr = Instruction::LoadFast(Arg::marker()).into();
info.instr = Instruction::LoadFast {
var_num: Arg::marker(),
}
.into();
}
// Jump pseudo ops are resolved during block linearization
PseudoInstruction::Jump { .. } | PseudoInstruction::JumpNoInterrupt { .. } => {}
// These should have been resolved earlier
PseudoInstruction::AnnotationsPlaceholder
| PseudoInstruction::JumpIfFalse { .. }
| PseudoInstruction::JumpIfTrue { .. }
| PseudoInstruction::StoreFastMaybeNull(_) => {
| PseudoInstruction::StoreFastMaybeNull { .. } => {
unreachable!("Unexpected pseudo instruction in convert_pseudo_ops: {pseudo:?}")
}
}
Expand Down
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