8000 GH-93678: reduce boilerplate and code repetition in the compiler by iritkatriel · Pull Request #93682 · python/cpython · GitHub
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GH-93678: reduce boilerplate and code repetition in the compiler #93682

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Merged
merged 18 commits into from
Jun 14, 2022
Merged

GH-93678: reduce boilerplate and code repetition in the compiler #93682

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996be64
move line/noline to arg and remove _noline version of functions
iritkatriel Jun 10, 2022
af31e92
add struct location to reduce boilerplate
iritkatriel Jun 10, 2022
f8a0767
merge basicblock_addop, basicblock_addop_i and basicblock_add_jump in…
iritkatriel Jun 10, 2022
430b4b9
add news
iritkatriel Jun 10, 2022
66d5609
assume that oparg is < (1<<30)
iritkatriel Jun 10, 2022
7670a7c
Merge remote-tracking branch 'upstream/main' into codegen-reduce-repe…
iritkatriel Jun 10, 2022
7d74572
use the new location struct for the compiler unit's location
iritkatriel Jun 10, 2022
016ebbc
use the new location struct for the instruction location
iritkatriel Jun 10, 2022
5e06cad
basicblock_addop takes location by reference
iritkatriel Jun 10, 2022
c23e2cf
LOCATION needs to return a const
iritkatriel Jun 10, 2022
fc74555
define static no_location in function scope
iritkatriel Jun 10, 2022
9220fc1
are we const now?
iritkatriel Jun 10, 2022
9b5dc34
trivial stuff
iritkatriel Jun 10, 2022
5330060
Merge remote-tracking branch 'upstream/main' into codegen-reduce-repe…
iritkatriel Jun 13, 2022
414e26a
remove two unused fields from struct assembler
iritkatriel Jun 13, 2022
26dc190
define NO_LOCATION as a static const in global scope
iritkatriel Jun 13, 2022
98d24f2
Merge remote-tracking branch 'upstream/main' into codegen-reduce-repe…
iritkatriel Jun 14, 2022
7851ccd
Merge remote-tracking branch 'upstream/main' into codegen-reduce-repe…
iritkatriel Jun 14, 2022
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basicblock_addop takes location by reference
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@iritkatriel
iritkatriel committed Jun 10, 2022
commit 5e06cad8cf2d4023ff97cd6eefef5e2f4166eba2
15 changes: 7 additions & 8 deletions Python/compile.c
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6B26
Original file line number Diff line number Diff line change
Expand Up @@ -159,7 +159,7 @@ struct location {
#define LOCATION(LNO, END_LNO, COL, END_COL) \
((struct location){(LNO), (END_LNO), (COL), (END_COL)})

#define NO_LOCATION (LOCATION(-1, -1, -1, -1))
static struct location NO_LOCATION = (LOCATION(-1, -1, -1, -1));

struct instr {
int i_opcode;
Expand Down Expand Up @@ -348,7 +348,6 @@ enum {
COMPILER_SCOPE_COMPREHENSION,
};


/* The following items change on entry and exit of code blocks.
They must be saved and restored when returning to a block.
*/
Expand Down Expand Up @@ -1273,7 +1272,7 @@ compiler_use_new_implicit_block_if_needed(struct compiler *c)

static int
basicblock_addop(basicblock *b, int opcode, int oparg,
basicblock *target, struct location loc)
basicblock *target, const struct location *loc)
{
assert(IS_WITHIN_OPCODE_RANGE(opcode));
assert(!IS_ASSEMBLER_OPCODE(opcode));
Expand All @@ -1292,7 +1291,7 @@ basicblock_addop(basicblock *b, int opcode, int oparg,
i->i_opcode = opcode;
i->i_oparg = oparg;
i->i_target = target;
i->i_loc = loc;
i->i_loc = *loc;

return 1;
}
Expand All @@ -1305,7 +1304,7 @@ compiler_addop(struct compiler *c, int opcode, bool line)
return -1;
}

struct location loc = line ? c->u->u_loc : NO_LOCATION;
const struct location *loc = line ? &c->u->u_loc : &NO_LOCATION;
return basicblock_addop(c->u->u_curblock, opcode, 0, NULL, loc);
}

Expand Down Expand Up @@ -1513,7 +1512,7 @@ compiler_addop_i(struct compiler *c, int opcode, Py_ssize_t oparg, bool line)

int oparg_ = Py_SAFE_DOWNCAST(oparg, Py_ssize_t, int);

struct location loc = line ? c->u->u_loc : NO_LOCATION;
const struct location *loc = line ? &c->u->u_loc : &NO_LOCATION;
return basicblock_addop(c->u->u_curblock, opcode, oparg_, NULL, loc);
}

Expand All @@ -1523,7 +1522,7 @@ compiler_addop_j(struct compiler *c, int opcode, basicblock *target, bool line)
if (compiler_use_new_implicit_block_if_needed(c) < 0) {
return -1;
}
struct location loc = line ? c->u->u_loc : NO_LOCATION;
const struct location *loc = line ? &c->u->u_loc : &NO_LOCATION;
assert(target != NULL);
assert(IS_JUMP_OPCODE(opcode) || IS_BLOCK_PUSH_OPCODE(opcode));
return basicblock_addop(c->u->u_curblock, opcode, 0, target, loc);
Expand Down Expand Up @@ -7387,7 +7386,7 @@ push_cold_blocks_to_end(struct compiler *c, basicblock *entry, int code_flags) {
if (explicit_jump == NULL) {
return -1;
}
basicblock_addop(explicit_jump, JUMP, 0, b->b_next, NO_LOCATION);
basicblock_addop(explicit_jump, JUMP, 0, b->b_next, &NO_LOCATION);

explicit_jump->b_cold = 1;
explicit_jump->b_next = b->b_next;
Expand Down
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