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GH-131729: Code-gen better liveness analysis (GH-131732)

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* Rename 'defined' attribute to 'in_local' to more accurately reflect how it is used

* Make death of variables explicit even for array variables.

* Convert in_memory from boolean to stack offset

* Don't apply liveness analysis to optimizer generated code

* Fix RETURN_VALUE in optimizer
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Mark Shannon 2025-03-26 15:21:35 +00:00 • committed by GitHub
parent b9ca438daa
commit 1b8bb1ed0c
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12 changed files with 344 additions and 399 deletions
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Python/optimizer_bytecodes.c
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@ -717,6 +717,8 @@ dummy_func(void) {
}
op(_RETURN_VALUE, (retval -- res)) {
JitOptSymbol *temp = retval;
DEAD(retval);
SAVE_STACK();
ctx->frame->stack_pointer = stack_pointer;
frame_pop(ctx);
@ -736,7 +738,7 @@ dummy_func(void) {
ctx->done = true;
}
RELOAD_STACK();
res = retval;
res = temp;
}
op(_RETURN_GENERATOR, ( -- res)) {