https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97763
Bug ID: 97763
Summary: valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
I just tried out testsuite file ./gcc.dg/vect/vect-nest-cycle-3.c
with a valgrind version of gcc trunk and compiler flag -O3.
It said:
./gcc.dg/vect/vect-nest-cycle-3.c
==309158== Use of uninitialised value of size 8
==309158== at 0x1170D0F: constant_for_folding (gimple-match-head.c:79)
==309158== by 0x1170D0F: gimple_simplify(tree_code, tree_node*, tree_node*,
tree_node*, gimple**, tree_node* (*)(tree_node*)) (gimple-match-head.c:697)
==309158== by 0x9039AA: gimple_build(gimple**, unsigned int, tree_code,
tree_node*, tree_node*, tree_node*) (gimple-fold.c:7654)
==309158== by 0xE47018: gimple_build (gimple-fold.h:83)
This first seems to go wrong sometime between 20201023 and 20201107.
