https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98671
--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to David Binderman from comment #5) > (In reply to Uroš Bizjak from comment #4) > > I'm not sure if solving this would bring us anything. > > For clarity, at very most a 4% reduction in the size of the stack frame > for function ix86_parse_stringop_strategy_string. Unfortunately, patched and unpatched compiler results in the same frame size: 00000000011dc690 <_ZL35ix86_parse_stringop_strategy_stringPcb>: 11dc690: 41 57 push %r15 11dc692: 41 56 push %r14 11dc694: 41 55 push %r13 11dc696: 41 54 push %r12 11dc698: 55 push %rbp 11dc699: 53 push %rbx 11dc69a: 48 89 fb mov %rdi,%rbx 11dc69d: 48 81 ec 08 01 00 00 sub $0x108,%rsp ...
