http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20020
--- Comment #38 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-08-15 08:57:51 UTC --- What are the code generation deficiencies you are targeting with this? For testcase #1 I get sptr_result: .LFB0: .cfi_startproc movq S+8(%rip), %rdx movq S(%rip), %rax ret what would you expect instead? I don't think we should change MAX_FIXED_MODE_SIZE, nor make use of TImode unconditionally.