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[Bug rtl-optimization/25505] [4.0/4.1/4.2 Regression] gcc uses way too much stack space for this code
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Dec 2005 21:44:03 -0000
- Subject: [Bug rtl-optimization/25505] [4.0/4.1/4.2 Regression] gcc uses way too much stack space for this code
- References: <bug-25505-6809@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from pinskia at gcc dot gnu dot org 2005-12-20 21:44 -------
Small testcase:
typedef struct a
{
int f[1000];
} a;
a f(void);
int g(void)
{
f();
f();
}
----
Note that the C front-end has always produced bad stack usage.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |missed-optimization
Known to fail| |4.0.0 4.1.0 4.2.0
Known to work| |3.3.3
Last reconfirmed|0000-00-00 00:00:00 |2005-12-20 21:44:03
date| |
Summary|gcc uses way too much stack |[4.0/4.1/4.2 Regression] gcc
|space for this code |uses way too much stack
| |space for this code
Target Milestone|--- |4.0.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25505