When compiling xorg-cvs gcc throws the following ICE in
programs/Xserver/fb/fbmmx.c
fbmmx.c: In function 'mmxCombineAddU':
fbmmx.c:564: internal compiler error: in for_each_index, at
tree-ssa-loop-im.c:202
gcc (GCC) 4.0.2 20050823 (prerelease)
Configured with: ../gcc-4.0-20050824/configure --prefix=/usr
--libexecdir=/usr/lib --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++
Condensed command line:
gcc -c -O2 -march=pentium4 fbmmx.i
Compiling the file without -O2 works.
As the preprocessed file is very long I will attach it to this report instead
of including it in the comment.
--
Summary: ICE in for_each_index, at tree-ssa-loop-im.c:202
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ma1flfs at bath dot ac dot uk
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
