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gh-106581: Split CALL_PY_EXACT_ARGS into uops (#107760)

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* Split `CALL_PY_EXACT_ARGS` into uops

This is only the first step for doing `CALL` in Tier 2.
The next step involves tracing into the called code object and back.
After that we'll have to do the remaining `CALL` specialization.
Finally we'll have to deal with `KW_NAMES`.

Note: this moves setting `frame->return_offset` directly in front of
`DISPATCH_INLINED()`, to make it easier to move it into `_PUSH_FRAME`.
This commit is contained in:
Guido van Rossum 2023-08-16 16:26:43 -07:00 • committed by GitHub
parent 665a4391e1
commit dc8fdf5fd5
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14 changed files with 412 additions and 116 deletions
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Python/optimizer.c
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@ -606,6 +606,10 @@ pop_jump_if_bool:
case OPARG_BOTTOM: // Second half of super-instr
oparg = orig_oparg & 0xF;
break;
case OPARG_SAVE_IP: // op==SAVE_IP; oparg=next instr
oparg = INSTR_IP(instr + offset, code);
break;
default:
fprintf(stderr,
"opcode=%d, oparg=%d; nuops=%d, i=%d; size=%d, offset=%d\n",
@ -615,6 +619,11 @@ pop_jump_if_bool:
Py_FatalError("garbled expansion");
}
ADD_TO_TRACE(expansion->uops[i].uop, oparg, operand);
if (expansion->uops[i].uop == _PUSH_FRAME) {
assert(i + 1 == nuops);
ADD_TO_TRACE(SAVE_IP, 0, 0);
goto done;
}
}
break;
}