https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104511
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:f320197c8b495324dc6997a99d53e7f45ecf5840 commit r12-7224-gf320197c8b495324dc6997a99d53e7f45ecf5840 Author: Richard Biener <rguent...@suse.de> Date: Mon Feb 14 10:09:10 2022 +0100 tree-optimization/104511 - avoid FP to DFP conversion for VEC_PACK_TRUNC This avoids forwprop from matching DFP <-> FP vector conversions using VEC_[UN]PACK{_TRUNC,_LO,_HI}. Maybe DFP vectors shouldn't be a thing, but they appearantly are. Re-using CONVERT/NOP_EXPR for DFP <-> FP conversions was probably a mistake. 2022-02-14 Richard Biener <rguent...@suse.de> PR tree-optimization/104511 * tree-ssa-forwprop.cc (simplify_vector_constructor): Avoid touching DFP <-> FP conversions. * gcc.dg/pr104511.c: New testcase.
