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gh-107901: compiler replaces POP_BLOCK instruction by NOPs before optimisations #114530

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Merged
iritkatriel merged 9 commits into from
Jan 25, 2024
Merged

gh-107901: compiler replaces POP_BLOCK instruction by NOPs before optimisations #114530

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bfd13f1
gh-107901: replace POP_BLOCK instruction by NOPs earlier
iritkatriel Jan 24, 2024
63e5c9c
propagate only if false
iritkatriel Jan 24, 2024
1f38dc2
Merge branch 'main' into pop_block_cleanup
iritkatriel Jan 24, 2024
5accf19
Revert "propagate only if false"
iritkatriel Jan 25, 2024
0d8e0dd
Revert "gh-107901: replace POP_BLOCK instruction by NOPs earlier"
iritkatriel Jan 25, 2024
185b872
Merge remote-tracking branch 'upstream/main' into pop_block_cleanup
iritkatriel Jan 25, 2024
7004b26
gh-107901: compiler replaces POP_BLOCK instruction by NOPs before opt…
iritkatriel Jan 25, 2024
111fc78
convert in main loop
iritkatriel Jan 25, 2024
a5c4c8c
whitespace
iritkatriel Jan 25, 2024
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3 changes: 2 additions & 1 deletion 3 Python/flowgraph.c
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Original file line number Diff line number Diff line change
Expand Up @@ -903,6 +903,7 @@ label_exception_targets(basicblock *entryblock) {
}
else if (instr->i_opcode == POP_BLOCK) {
handler = pop_except_block(except_stack);
INSTR_SET_OP0(instr, NOP);
}
else if (is_jump(instr)) {
instr->i_except = handler;
Expand Down Expand Up @@ -2313,7 +2314,7 @@ convert_pseudo_ops(cfg_builder *g)
for (basicblock *b = entryblock; b != NULL; b = b->b_next) {
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) {
if (is_block_push(instr)) {
INSTR_SET_OP0(instr, NOP);
}
else if (instr->i_opcode == LOAD_CLOSURE) {
Expand Down
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