https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63483
--- Comment #21 from uros at gcc dot gnu.org --- Author: uros Date: Wed Nov 5 12:02:17 2014 New Revision: 217119 URL: https://gcc.gnu.org/viewcvs?rev=217119&root=gcc&view=rev Log: Backport from mainline: 2014-10-20 Uros Bizjak <ubiz...@gmail.com> * varasm.c (const_alias_set): Remove. (init_varasm_once): Remove initialization of const_alias_set. (build_constant_desc): Do not set alias set to const_alias_set. Backport from mainline: 2014-10-14 Uros Bizjak <ubiz...@gmail.com> PR rtl-optimization/63475 * alias.c (true_dependence_1): Always use get_addr to extract true address operands from x_addr and mem_addr. Use extracted address operands to check for references with alignment ANDs. Use extracted address operands with find_base_term and base_alias_check. For noncanonicalized operands call canon_rtx with extracted address operand. (write_dependence_1): Ditto. (may_alias_p): Ditto. Remove unused calls to canon_rtx. Backport from mainline: 2014-10-10 Uros Bizjak <ubiz...@gmail.com> PR rtl-optimization/63483 * alias.c (true_dependence_1): Do not exit early for MEM_READONLY_P references when alignment ANDs are involved. (write_dependence_p): Ditto. (may_alias_p): Ditto. Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/alias.c branches/gcc-4_9-branch/gcc/varasm.c
