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GH-93249: relax overly strict assertion on bounds->ar_start (GH-93961) (GH-94032)

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(cherry picked from commit 1603a1029f)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2022-06-20 09:42:51 -07:00 • committed by GitHub
parent e6ad59934e
commit 26329e49ca
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2 changed files with 33 additions and 2 deletions
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7
Objects/codeobject.c
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@ -768,6 +768,11 @@ next_code_delta(PyCodeAddressRange *bounds)
static int
previous_code_delta(PyCodeAddressRange *bounds)
{
if (bounds->ar_start == 0) {
// If we looking at the first entry, the
// "previous" entry has an implicit length of 1.
return 1;
}
const uint8_t *ptr = bounds->opaque.lo_next-1;
while (((*ptr) & 128) == 0) {
ptr--;
@ -811,7 +816,7 @@ static void
retreat(PyCodeAddressRange *bounds)
{
ASSERT_VALID_BOUNDS(bounds);
assert(bounds->ar_start > 0);
assert(bounds->ar_start >= 0);
do {
bounds->opaque.lo_next--;
} while (((*bounds->opaque.lo_next) & 128) == 0);