Compiling the GCC testsuite file alias3.C with -O1 -finline-functions exhausts
memory on checking=all or =yes builds of GCC 4.1.1, on Ubuntu 5.04 with virtual
memory limited to 500M. Roughly similar behavior on Mac OSX 10.4.6 with a
checking=all build of GCC 4.1.0, though ulimit is broken on the Mac, so I had
to kill the process manually. A checking=all build of GCC 4.0.2 compiles
without error.
The symptoms are similar to my PR26774, but that's fixed in 4.1.1, and
didn't require optimization.
Here's the Delta-reduced file:
namespace A{
struct X{};
void f(X&);
namespace a_very_long_namespace_name{
}
}
namespace B = A;
void B::f(A::X& x)
{
B::f(x);
f(x);
}
============
Here's the session; I'll attach the preprocessed file.
131> /opt/gcc411-chk-all/bin/gcc -v -save-temps -c -O1 -finline-functions
../cpp/bugfiles/GCC_bugfiles/noerror/131415_alias3_min.cpp
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /third-party_source/gcc-4.1.1/configure --enable-checking=all
--prefix=/opt/gcc411-chk-all/ --enable-languages=c,c++
--with-comment=PalmSource checking=all build by Flash Sheridan 5/31/06 on
Kondal
Thread model: posix
gcc version 4.1.1
/home/opt/gcc411-chk-all/bin/../libexec/gcc/i686-pc-linux-gnu/4.1.1/cc1plus -E
-quiet -v -iprefix
/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/ -D_GNU_SOURCE
../cpp/bugfiles/GCC_bugfiles/noerror/131415_alias3_min.cpp -mtune=pentiumpro
-finline-functions -O1 -fpch-preprocess -o 131415_alias3_min.ii
ignoring nonexistent directory
"/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../i686-pc-linux-gnu/include"
ignoring duplicate directory
"/opt/gcc411-chk-all//lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1"
ignoring duplicate directory
"/opt/gcc411-chk-all//lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/i686-pc-linux-gnu"
ignoring duplicate directory
"/opt/gcc411-chk-all//lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/backward"
ignoring duplicate directory
"/opt/gcc411-chk-all//lib/gcc/i686-pc-linux-gnu/4.1.1/include"
ignoring nonexistent directory
"/opt/gcc411-chk-all//lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1
/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/i686-pc-linux-gnu
/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/backward
/home/opt/gcc411-chk-all/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/include
/usr/local/include
/opt/gcc411-chk-all//include
/usr/include
End of search list.
/home/opt/gcc411-chk-all/bin/../libexec/gcc/i686-pc-linux-gnu/4.1.1/cc1plus
-fpreprocessed 131415_alias3_min.ii -quiet -dumpbase 131415_alias3_min.cpp
-mtune=pentiumpro -auxbase 131415_alias3_min -O1 -version -finline-functions -o
131415_alias3_min.s
GNU C++ version 4.1.1 (i686-pc-linux-gnu)
compiled by GNU C version 3.3.5 (Debian 1:3.3.5-8ubuntu2).
GGC heuristics: --param ggc-min-expand=0 --param ggc-min-heapsize=0
Compiler executable checksum: 0017ab69adc149664c23a10e9b6eba83
virtual memory exhausted: Cannot allocate memory
---
http://pobox.com/~flash
Quality Lead for Compilers and Debuggers
PalmSource, Inc. Tools Quality Assurance
PalmSource bug 131415
--
Summary: Memory exhausted with -finline-functions on testsuite
file alias3.C
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: flash at pobox dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27881
