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* [Bug c/14261] New: Compilation failure due to if-conversion
@ 2004-02-23 18:31 sje at cup dot hp dot com
2004-02-23 18:39 ` [Bug c/14261] " gerald at pfeifer dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: sje at cup dot hp dot com @ 2004-02-23 18:31 UTC (permalink / raw)
To: gcc-bugs
The attached program will not compile with -O2 on IA64 linux. If you turn off
if-conversion it will compile. See
http://gcc.gnu.org/ml/gcc/2004-02/msg01115.html for some analysis from Jim
Wilson. This was tested with the ToT sources dated
20040212 and also exists on older GCC compilers for IA64 Linux.
typedef union YYSTYPE {
double dval;
int intval;
} YYSTYPE;
YYSTYPE *x;
int
knparse (void)
{
YYSTYPE yyvsa[200];
register YYSTYPE *yyvsp;
YYSTYPE yyval, *x;
yyvsp = &yyvsa[100];
if (yyvsp[3].intval > yyvsp[0].intval)
yyval.intval = yyvsp[3].intval;
else
yyval.intval = yyvsp[0].intval;
*x = yyval;
}
--
Summary: Compilation failure due to if-conversion
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sje at cup dot hp dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14261
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c/14261] Compilation failure due to if-conversion 2004-02-23 18:31 [Bug c/14261] New: Compilation failure due to if-conversion sje at cup dot hp dot com @ 2004-02-23 18:39 ` gerald at pfeifer dot com 2004-02-24 4:57 ` [Bug optimization/14261] " pinskia at gcc dot gnu dot org 2004-08-16 0:32 ` [Bug rtl-optimization/14261] ICE " giovannibajo at libero dot it 2 siblings, 0 replies; 4+ messages in thread From: gerald at pfeifer dot com @ 2004-02-23 18:39 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- CC| |gerald at pfeifer dot com, | |schwab at suse dot de http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14261 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug optimization/14261] Compilation failure due to if-conversion 2004-02-23 18:31 [Bug c/14261] New: Compilation failure due to if-conversion sje at cup dot hp dot com 2004-02-23 18:39 ` [Bug c/14261] " gerald at pfeifer dot com @ 2004-02-24 4:57 ` pinskia at gcc dot gnu dot org 2004-08-16 0:32 ` [Bug rtl-optimization/14261] ICE " giovannibajo at libero dot it 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-02-24 4:57 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Component|c |optimization http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14261 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/14261] ICE due to if-conversion 2004-02-23 18:31 [Bug c/14261] New: Compilation failure due to if-conversion sje at cup dot hp dot com 2004-02-23 18:39 ` [Bug c/14261] " gerald at pfeifer dot com 2004-02-24 4:57 ` [Bug optimization/14261] " pinskia at gcc dot gnu dot org @ 2004-08-16 0:32 ` giovannibajo at libero dot it 2 siblings, 0 replies; 4+ messages in thread From: giovannibajo at libero dot it @ 2004-08-16 0:32 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From giovannibajo at libero dot it 2004-08-16 00:32 ------- Confirmed by Jim Wilson, and the submitter says it is not a regression. The testcase fails on IA-64, but Jim's analysys points to deficiencies in the ifcvt, so I'm keeping this as a rtl-opt bug. -- What |Removed |Added ---------------------------------------------------------------------------- CC| |wilson at gcc dot gnu dot | |org Status|UNCONFIRMED |NEW Ever Confirmed| |1 Keywords| |ice-on-valid-code Last reconfirmed|0000-00-00 00:00:00 |2004-08-16 00:32:13 date| | Summary|Compilation failure due to |ICE due to if-conversion |if-conversion | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14261 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-08-16 0:32 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-02-23 18:31 [Bug c/14261] New: Compilation failure due to if-conversion sje at cup dot hp dot com 2004-02-23 18:39 ` [Bug c/14261] " gerald at pfeifer dot com 2004-02-24 4:57 ` [Bug optimization/14261] " pinskia at gcc dot gnu dot org 2004-08-16 0:32 ` [Bug rtl-optimization/14261] ICE " giovannibajo at libero dot it
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