https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79697
prathamesh3492 at gcc dot gnu.org changed:
What |Removed |Added
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CC| |prathamesh3492 at gcc dot
gnu.org
--- Comment #4 from prathamesh3492 at gcc dot gnu.org ---
Created attachment 40821
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40821&action=edit
untested patch
In cddce/dce pass, mark_stmt_if_obviously_necessary() does not special case
strdup, strndup, and marks them as obviously necessary.
From the dump of cddce1:
Marking useful stmt: __builtin_strdup ("abc");
The attached (untested) patch does not mark stmt necessary if it's a call stmt
and callee is strdup/strndup, and for realloc if the first arg compares equal
to null_pointer_node and can thus delete these calls.
Does it look OK ?
Thanks,
Prathamesh
