Remove duplicate clearing of `full_costs' made in `assign_hard_reg', which has been there since the beginning, i.e. commit 058e97ecf33a ("IRA has been merged into trunk"), <https://gcc.gnu.org/ml/gcc-patches/2008-08/msg01932.html>.
gcc/ * ira-color.cc (assign_hard_reg): Remove duplicate `memset' over `full_costs'. --- Hi, I find this fairly obvious, OK to apply? Maciej --- gcc/ira-color.cc | 1 - 1 file changed, 1 deletion(-) gcc-ira-assign-hard-reg-full-costs-dup.diff Index: gcc/gcc/ira-color.cc =================================================================== --- gcc.orig/gcc/ira-color.cc +++ gcc/gcc/ira-color.cc @@ -1961,7 +1961,6 @@ assign_hard_reg (ira_allocno_t a, bool r aclass = ALLOCNO_CLASS (a); class_size = ira_class_hard_regs_num[aclass]; best_hard_regno = -1; - memset (full_costs, 0, sizeof (int) * class_size); mem_cost = 0; memset (costs, 0, sizeof (int) * class_size); memset (full_costs, 0, sizeof (int) * class_size);