https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121830
Bug ID: 121830 Summary: ice in vect_build_slp_tree_2, again ? Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 62334 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62334&action=edit C source code The attached C code does this with recent gcc: foundBugs $ ../results/bin/gcc -c -w -O1 bug1121.c foundBugs $ ../results/bin/gcc -c -w -O2 bug1121.c during GIMPLE pass: vect runData/keep/in.45787.c: In function ‘main’: runData/keep/in.45787.c:1884:5: internal compiler error: in vect_build_slp_tree_2, at tree-vect-slp.cc:2857 0x1ef3d27 internal_error /home/dcb42/gcc/working/gcc/../../trunk/gcc/diagnostic-global-context.cc:786 0x1efd3eb fancy_abort /home/dcb42/gcc/working/gcc/../../trunk/gcc/diagnostics/context.cc:1787 0xf89fbd vect_build_slp_tree_2 /home/dcb42/gcc/working/gcc/../../trunk/gcc/tree-vect-slp.cc:2857 The bug first seems to occur sometime between g:d21f10259f64723f and g:dea668daa2ea8f9d. I will run a reduction.