public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug middle-end/23872] New: .t02.original dump weirdness
@ 2005-09-13 20:24 dann at godzilla dot ics dot uci dot edu
2005-09-13 20:28 ` [Bug c/23872] " pinskia at gcc dot gnu dot org
2005-09-13 20:45 ` dann at godzilla dot ics dot uci dot edu
0 siblings, 2 replies; 5+ messages in thread
From: dann at godzilla dot ics dot uci dot edu @ 2005-09-13 20:24 UTC (permalink / raw)
To: gcc-bugs
Using gcc -O2 -fdump-tree-all -S
to compile:
int bar (void) { return 0;}
int foo (int reject) { int result = 0; return result;}
the .t02.original dump looks like:
;; Function bar (bar)
;; enabled by -tree-original
{
return 0;
}
;; Function foo (foo)
;; enabled by -tree-original
{
int result = 0;
int result = 0; <--- this line appears twice...
return result;
}
If the order of the 2 functions is reversed in the file then the dump looks like:
;; Function foo (foo)
;; enabled by -tree-original
{
int result = 0;
<STATEMENT_LIST> <--- the return does not appear...
}
;; Function bar (bar)
;; enabled by -tree-original
{
return 0;
}
Using just -fdump-tree-original then the dump for "foo" always looks like the
second version.
--
Summary: .t02.original dump weirdness
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dann at godzilla dot ics dot uci dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23872
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug c/23872] .t02.original dump weirdness 2005-09-13 20:24 [Bug middle-end/23872] New: .t02.original dump weirdness dann at godzilla dot ics dot uci dot edu @ 2005-09-13 20:28 ` pinskia at gcc dot gnu dot org 2005-09-13 20:45 ` dann at godzilla dot ics dot uci dot edu 1 sibling, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-13 20:28 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-13 20:28 ------- > int result = 0; <--- this line appears twice... That is because there is DECL_EXPR there and you just don't see it. This is all really a front-end issue. -- What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |minor Component|middle-end |c http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23872 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/23872] .t02.original dump weirdness 2005-09-13 20:24 [Bug middle-end/23872] New: .t02.original dump weirdness dann at godzilla dot ics dot uci dot edu 2005-09-13 20:28 ` [Bug c/23872] " pinskia at gcc dot gnu dot org @ 2005-09-13 20:45 ` dann at godzilla dot ics dot uci dot edu 1 sibling, 0 replies; 5+ messages in thread From: dann at godzilla dot ics dot uci dot edu @ 2005-09-13 20:45 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From dann at godzilla dot ics dot uci dot edu 2005-09-13 20:45 ------- The fact that the dump is different depending on function order or compilation flags seems to point to either an uninitialized variable or some memory corruption. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23872 ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <bug-23872-1008@http.gcc.gnu.org/bugzilla/>]
* [Bug c/23872] .t02.original dump weirdness [not found] <bug-23872-1008@http.gcc.gnu.org/bugzilla/> @ 2005-12-28 6:04 ` pinskia at gcc dot gnu dot org 2007-08-16 14:40 ` manu at gcc dot gnu dot org 1 sibling, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-12-28 6:04 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from pinskia at gcc dot gnu dot org 2005-12-28 06:04 ------- The STATEMENT_LIST printing out instead of what it really should be is because GCC uses print_generic_expr instead of print_generic_stmt. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23872 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/23872] .t02.original dump weirdness [not found] <bug-23872-1008@http.gcc.gnu.org/bugzilla/> 2005-12-28 6:04 ` pinskia at gcc dot gnu dot org @ 2007-08-16 14:40 ` manu at gcc dot gnu dot org 1 sibling, 0 replies; 5+ messages in thread From: manu at gcc dot gnu dot org @ 2007-08-16 14:40 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from manu at gcc dot gnu dot org 2007-08-16 14:39 ------- I think this is confirmed. Patches welcome! -- manu at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2007-08-16 14:39:58 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23872 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-08-16 14:40 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-09-13 20:24 [Bug middle-end/23872] New: .t02.original dump weirdness dann at godzilla dot ics dot uci dot edu
2005-09-13 20:28 ` [Bug c/23872] " pinskia at gcc dot gnu dot org
2005-09-13 20:45 ` dann at godzilla dot ics dot uci dot edu
[not found] <bug-23872-1008@http.gcc.gnu.org/bugzilla/>
2005-12-28 6:04 ` pinskia at gcc dot gnu dot org
2007-08-16 14:40 ` manu at gcc dot gnu dot 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).