[Bug tree-optimization/111882] [13/14 Regression] : internal compiler error: in get_expr_operand in ifcvt with Variable length arrays and bitfields inside a struct
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111882 --- Comment #4 from CVS Commits --- The master branch has been updated by Andre Simoes Dias Vieira : https://gcc.gnu.org/g:24cf1f600b8ad34c68a51f48884e72d01f729893 commit r14-4798-g24cf1f600b8ad34c68a51f48884e72d01f729893 Author: Andre Vieira Date: Fri Oct 20 17:02:32 2023 +0100 ifcvt: Don't lower bitfields with non-constant offsets [PR 111882] This patch stops lowering of bitfields by ifcvt when they have non-constant offsets as we are not likely to be able to do anything useful with those during vectorization. That also fixes the issue reported in PR 111882, which was being caused by an offset with a side-effect being lowered, but constants have no side-effects so we will no longer run into that problem. gcc/ChangeLog: PR tree-optimization/111882 * tree-if-conv.cc (get_bitfield_rep): Return NULL_TREE for bitfields with non-constant offsets. gcc/testsuite/ChangeLog: * gcc.dg/vect/pr111882.c: New test.
[Bug tree-optimization/111882] [13/14 Regression] : internal compiler error: in get_expr_operand in ifcvt with Variable length arrays and bitfields inside a struct
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111882 avieira at gcc dot gnu.org changed: What|Removed |Added CC||avieira at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |avieira at gcc dot gnu.org --- Comment #3 from avieira at gcc dot gnu.org --- Taking this, first time I see a SAVE_EXPR. It looks like it indicates side-effects, I'm gonna see if I can detect the presence of side-effects and reject lowering if so. Does that sound OK?
[Bug tree-optimization/111882] [13/14 Regression] : internal compiler error: in get_expr_operand in ifcvt with Variable length arrays and bitfields inside a struct
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111882 Richard Biener changed: What|Removed |Added Priority|P3 |P2 CC||andre.simoesdiasvieira@arm. ||com
[Bug tree-optimization/111882] [13/14 Regression] : internal compiler error: in get_expr_operand in ifcvt with Variable length arrays and bitfields inside a struct
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111882 --- Comment #2 from Andrew Pinski --- Looks like this was broken when bitfield expansion was added to ifcvt (I think r13-3219-g25413fdb2ac24933214123e24ba165026452a6f2 ).
