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gh-87092: bring compiler code closer to a preprocessing-opt-assembler organisation #97644

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Merged
iritkatriel merged 12 commits into from
Oct 5, 2022
Merged

gh-87092: bring compiler code closer to a preprocessing-opt-assembler organisation #97644

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27102b2
add unit test for const trimming
iritkatriel Sep 20, 2022
9827030
move trim_unused_consts to assembly stage
iritkatriel Sep 20, 2022
103c9ae
move a few things around
iritkatriel Sep 20, 2022
bab900a
remove redundant assert and move another up to just after the value w…
iritkatriel Sep 20, 2022
9736e75
move push_cold_blocks_to_end up
iritkatriel Sep 21, 2022
eb6cd76
reduce repetition: create basicblock_append_instructions and call it …
iritkatriel Sep 29, 2022
fa0b95d
move remove_redundant_nops call into convert_exception_handlers_to_no…
iritkatriel Sep 29, 2022
8a2f28e
move check_loads function to optimization stage
iritkatriel Sep 29, 2022
85751ea
mark's review comments
iritkatriel Oct 3, 2022
5f78cc7
fix comment
iritkatriel Oct 3, 2022
e44b087
Call it preprocessing
iritkatriel Oct 4, 2022
4f15173
Merge branch 'main' into compiler_refactor
iritkatriel Oct 4, 2022
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reduce repetition: create basicblock_append_instructions and call it … 
…from two places
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@iritkatriel
iritkatriel committed Sep 29, 2022
commit eb6cd7614da0c144d811e2ed93c13db3a44c2ea4
29 changes: 17 additions & 12 deletions Python/compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -912,6 +912,19 @@ cfg_builder_use_label(cfg_builder *g, jump_target_label lbl)
return cfg_builder_maybe_start_new_block(g);
}

static inline int
basicblock_append_instructions(basicblock *target, basicblock *source)
{
for (int i = 0; i < source->b_iused; i++) {
int n = basicblock_next_instr(target);
if (n < 0) {
return -1;
}
target->b_instr[n] = source->b_instr[i];
}
return 0;
}

static basicblock *
copy_basicblock(cfg_builder *g, basicblock *block)
{
Expand All @@ -923,12 +936,8 @@ copy_basicblock(cfg_builder *g, basicblock *block)
if (result == NULL) {
return NULL;
}
for (int i = 0; i < block->b_iused; i++) {
int n = basicblock_next_instr(result);
if (n < 0) {
return NULL;
}
result->b_instr[n] = block->b_instr[i];
if (basicblock_append_instructions(result, block) < 0) {
return NULL;
}
return result;
}
Expand Down Expand Up @@ -9268,12 +9277,8 @@ inline_small_exit_blocks(basicblock *bb) {
basicblock *target = last->i_target;
if (basicblock_exits_scope(target) && target->b_iused <= MAX_COPY_SIZE) {
last->i_opcode = NOP;
for (int i = 0; i < target->b_iused; i++) {
int index = basicblock_next_instr(bb);
if (index < 0) {
return -1;
}
bb->b_instr[index] = target->b_instr[i];
if (basicblock_append_instructions(bb, target) < 0) {
return -1;
}
return 1;
}
Expand Down