public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug rtl-optimization/71923] return instruction emitted twice with branch target inbetween
[not found] <bug-71923-4@http.gcc.gnu.org/bugzilla/>
@ 2023-07-18 14:29 ` javier.martinez.bugzilla at gmail dot com
0 siblings, 0 replies; only message in thread
From: javier.martinez.bugzilla at gmail dot com @ 2023-07-18 14:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71923
Javier Martinez <javier.martinez.bugzilla at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |javier.martinez.bugzilla@gm
| |ail.com
--- Comment #2 from Javier Martinez <javier.martinez.bugzilla at gmail dot com> ---
Also reproducible with:
extern void s1(void);
extern void s2(void);
void foo(int i) {
switch (i) {
case 1: return s1();
case 2: return s1();
case 3: return s2();
}
}
On Trunk and with -O2 or higher:
foo(int):
cmp edi, 2
jg .L2
test edi, edi
jle .L7
jmp s1 #tailcall
.LVL1:
.p2align 4,,10
.p2align 3
.L2:
cmp edi, 3
jne .L8
jmp s2 #tailcall
.LVL2:
.p2align 4,,10
.p2align 3
.L7:
ret # <--- ret
.p2align 4,,10
.p2align 3
.L8:
ret # <--- ret
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-07-18 14:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-71923-4@http.gcc.gnu.org/bugzilla/>
2023-07-18 14:29 ` [Bug rtl-optimization/71923] return instruction emitted twice with branch target inbetween javier.martinez.bugzilla at gmail dot com
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).