public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug rtl-optimization/107063] New: [X86_64 codegen] Using inc eax instead of inc dword ptr
@ 2022-09-27 23:30 hiraditya at msn dot com
  2022-09-27 23:37 ` [Bug rtl-optimization/107063] " pinskia at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: hiraditya at msn dot com @ 2022-09-27 23:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107063

            Bug ID: 107063
           Summary: [X86_64 codegen] Using inc eax instead of inc dword
                    ptr
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hiraditya at msn dot com
  Target Milestone: ---

int volatile gv = 0;

void foo() {
    ++gv;
}


$ gcc -Os

foo():
        mov     eax, DWORD PTR gv[rip]
        inc     eax
        mov     DWORD PTR gv[rip], eax
        ret
gv:
        .zero   4


$ clang -Os

foo():                                # @foo()
        inc     dword ptr [rip + gv]
        ret
gv:
        .long   0   


https://godbolt.org/z/vzq4jr5vj

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug rtl-optimization/107063] [X86_64 codegen] Using inc eax instead of inc dword ptr
  2022-09-27 23:30 [Bug rtl-optimization/107063] New: [X86_64 codegen] Using inc eax instead of inc dword ptr hiraditya at msn dot com
@ 2022-09-27 23:37 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-09-27 23:37 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107063

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 50677.

*** This bug has been marked as a duplicate of bug 50677 ***

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-09-27 23:37 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-09-27 23:30 [Bug rtl-optimization/107063] New: [X86_64 codegen] Using inc eax instead of inc dword ptr hiraditya at msn dot com
2022-09-27 23:37 ` [Bug rtl-optimization/107063] " pinskia at gcc dot gnu.org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).