https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102977
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tamar Christina <tnfch...@gcc.gnu.org>: https://gcc.gnu.org/g:ed3de62ac949c92ad41ef6de7cc926fbb2a510ce commit r12-4785-ged3de62ac949c92ad41ef6de7cc926fbb2a510ce Author: Tamar Christina <tamar.christ...@arm.com> Date: Fri Oct 29 12:45:41 2021 +0100 middle-end: Update the Arm complex numbers auto-vec detection to the new format of the SLP tree. The layout of the SLP tree has changed in GCC 12 which broke the detection of complex FMA and FMS. This patch updates the detection to the new tree shape and by necessity merges the complex MUL and FMA detection into one. This does not yet address the wrong code-gen PR which I will fix in a different patch as that needs backporting. gcc/ChangeLog: PR tree-optimization/102977 * tree-vect-slp-patterns.c (vect_match_call_p): Remove. (vect_detect_pair_op): Add crosslane check. (vect_match_call_complex_mla): Remove. (class complex_mul_pattern): Update comment. (complex_mul_pattern::matches): Update detection. (class complex_fma_pattern): Remove. (complex_fma_pattern::matches): Remove. (complex_fma_pattern::recognize): Remove. (complex_fma_pattern::build): Remove. (class complex_fms_pattern): Update comment. (complex_fms_pattern::matches): Remove. (complex_operations_pattern::recognize): Remove complex_fma_pattern
