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gh-105481: add pseudo-instructions to the bytecodes DSL (#105506)

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Irit Katriel 2023-06-11 22:31:59 +01:00 • committed by GitHub
parent 20a56d8bec
commit 58f5227d7c
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8 changed files with 507 additions and 267 deletions
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Python/flowgraph.c
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@ -416,9 +416,13 @@ normalize_jumps_in_block(cfg_builder *g, basicblock *b) {
bool is_forward = last->i_target->b_visited == 0;
switch(last->i_opcode) {
case JUMP:
assert(SAME_OPCODE_METADATA(JUMP, JUMP_FORWARD));
assert(SAME_OPCODE_METADATA(JUMP, JUMP_BACKWARD));
last->i_opcode = is_forward ? JUMP_FORWARD : JUMP_BACKWARD;
return SUCCESS;
case JUMP_NO_INTERRUPT:
assert(SAME_OPCODE_METADATA(JUMP_NO_INTERRUPT, JUMP_FORWARD));
assert(SAME_OPCODE_METADATA(JUMP_NO_INTERRUPT, JUMP_BACKWARD_NO_INTERRUPT));
last->i_opcode = is_forward ?
JUMP_FORWARD : JUMP_BACKWARD_NO_INTERRUPT;
return SUCCESS;
@ -2071,9 +2075,11 @@ _PyCfg_ConvertPseudoOps(basicblock *entryblock)
for (int i = 0; i < b->b_iused; i++) {
cfg_instr *instr = &b->b_instr[i];
if (is_block_push(instr) || instr->i_opcode == POP_BLOCK) {
assert(SAME_OPCODE_METADATA(instr->i_opcode, NOP));
INSTR_SET_OP0(instr, NOP);
}
else if (instr->i_opcode == STORE_FAST_MAYBE_NULL) {
assert(SAME_OPCODE_METADATA(STORE_FAST_MAYBE_NULL, STORE_FAST));
instr->i_opcode = STORE_FAST;
}
}