https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66870
--- Comment #22 from Alan Modra <amodra at gcc dot gnu.org> --- Author: amodra Date: Thu Aug 13 05:25:02 2015 New Revision: 226848 URL: https://gcc.gnu.org/viewcvs?rev=226848&root=gcc&view=rev Log: More split-stack fixes Backport rev 226443 2015-07-31 Alan Modra <amo...@gmail.com> PR target/66870 * config/rs6000/rs6000.c (machine_function): Add split_stack_argp_used. (rs6000_emit_prologue): Set it. (rs6000_set_up_by_prologue): Specify r12 when split_stack_argp_used. Backport rev 223878 2015-05-30 Alan Modra <amo...@gmail.com> * config/rs6000/rs6000.c (split_stack_arg_pointer_used_p): Scan correct block for use of r12. (rs6000_expand_split_stack_prologue): Error on r29 asm global reg. Backport rev 223427 2015-05-20 Alan Modra <amo...@gmail.com> * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Return stack adjusting insn. Formatting. (rs6000_emit_prologue): Track stack adjusting insn, and use of r12. If possible, emit first -fsplit-stack arg pointer insn before stack adjust. Don't use r12 to save cr if split-stack. Backport rev 223425 2015-05-20 Alan Modra <amo...@gmail.com> * config/rs6000/rs6000.c (struct rs6000_stack): Correct comments. (direct_return): Test vrsave_size rather than vrsave_mask. (rs6000_emit_prologue): Likewise. Remove redundant altivec tests. (rs6000_emit_epilogue): Likewise. Revert bogus rs6000_function_ok_for_sibcall change that caused failure of glibc build. Revert rs6000_can_eliminate cosmetic change Modified: branches/ibm/gcc-5-branch/gcc/config/rs6000/rs6000.c
