Skip to content

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

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 9 commits into from
Jan 25, 2024
Merged

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

Changes from 8 commits
Commits
Show all changes
9 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion Python/flowgraph.c
View file
Open in desktop
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 @@ -953,6 +954,7 @@ label_exception_targets(basicblock *entryblock) {
PyMem_Free(except_stack);
}
}

#ifdef Py_DEBUG
for (basicblock *b = entryblock; b != NULL; b = b->b_next) {
assert(b->b_exceptstack == NULL);
Expand Down Expand Up @@ -2313,7 +2315,7 @@ 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