On 27/11/15 13:53, Claudiu Zissulescu wrote:
@@ -2502,11 +2540,18 @@ arc_expand_epilogue (int sibcall_p)
/* Restore any saved registers. */
if (frame_pointer_needed)
{
- rtx addr = gen_rtx_POST_INC (Pmode, stack_pointer_rtx);
+ insn = emit_insn (gen_blockage ());
Is this actually part of the patch to fix cfi generation?
It looks to me like it is working around an alias.c issue - namely, that
alias.c does
not consider stack and frame pointer based addresses to alias.
https://gcc.gnu.org/ml/gcc/2011-07/msg00461.html
https://github.com/adapteva/epiphany-gcc/commit/6d1194a563e05dfa826ab4635514477af1f7a2b0
