When the -fgraphite flag is passed while compiling pymol
(http://pymol.sourceforge.net), an ICE occurs for Matrix.c of the form...
gcc-4 --save-temps -Wall -fgraphite -I../layer0 -I../layer1 -I../layer2
-I../layer3 -I../layer4 -I../layer5 -Wmissing-prototypes -Wno-long-double -O3
-funroll-loops -fomit-frame-pointer -ffast-math -I/sw/include
-I/sw/include/python2.5 -I/sw/include/python2.5/Numeric -I/usr/X11R6/include
-D_HAVE_LIBPNG -D_PYMOL_MODULE -D_PYMOL_NUMPY -D_PYMOL_FINK -I../ov/src -c
-o Matrix.o Matrix.c
Matrix.c: In function pymol_rg_:
Matrix.c:3059: error: edge from 12 to 539 should be marked irreducible
Matrix.c:3059: error: basic block 539 should be marked irreducible
Matrix.c:3059: internal compiler error: in verify_loop_structure, at
cfgloop.c:1569
--
Summary: ICE compiling Matrix.c in pymol using -fgraphite
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: i686-apple-darwin9
GCC host triplet: i686-apple-darwin9
GCC target triplet: i686-apple-darwin9
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37776
