[Bug c/42956] New: internal compiler error: Segmentation fault with -O1

[peb at mppmu dot mpg dot de]

When building Cuba-1.6 (http://www.feynarts.de/cuba/Cuba-1.6.tar.gz)
via configure && make, there is an internal compiler error (segmentation fault)
in the compilation of Divonne.c.  This may or may not be related to #41155.

gcc says:
gcc-4.4.3 -O3 -fomit-frame-pointer -ffast-math -DHAVE_CONFIG_H
-I../Cuba-1.6/src/common -I. -I../Cuba-1.6 -I../Cuba-1.6/src/divonne -c -o
Divonne.o ../Cuba-1.6/src/divonne/Divonne.c
In file included from ../Cuba-1.6/src/divonne/common.c:19,
                 from ../Cuba-1.6/src/divonne/Divonne.c:41:
../Cuba-1.6/src/divonne/Split.c: In function 'Split':
../Cuba-1.6/src/divonne/Split.c:275: internal compiler error: Segmentation
fault

This error occurs for gcc-4.4.3 with -O3, -O2, and -O1 but neither with -O0 nor
for gcc-4.4.2


-- 
           Summary: internal compiler error: Segmentation fault with -O1
           Product: gcc
           Version: 4.4.3
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: peb at mppmu dot mpg dot de
 GCC build triplet: i686-linux-gnu
  GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42956