https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84913
--- Comment #2 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Author: rsandifo Date: Sun Mar 18 10:25:29 2018 New Revision: 258631 URL: https://gcc.gnu.org/viewcvs?rev=258631&root=gcc&view=rev Log: Don't try to vectorise COND_EXPR reduction chains (PR 84913) The testcase ICEd for both SVE and AVX512 because we were trying to vectorise a chain of COND_EXPRs as a reduction and getting confused by reduc_index == -1. 2018-03-18 Richard Sandiford <richard.sandif...@linaro.org> gcc/ PR tree-optimization/84913 * tree-vect-loop.c (vectorizable_reduction): Don't try to vectorize chains of COND_EXPRs. gcc/testsuite/ PR tree-optimization/84913 * gfortran.dg/vect/pr84913.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/vect/pr84913.f90 Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-loop.c