Tests gap and twolf from SPEC CPU2000 ICE when built on powerpc64-linux with
"-O2 -ftree-loop-linear" and either -m32 or -m64. A third test, lucas, started
getting segfaults for those options at the same time. A regression hunt using
a minimized testcase (to be attached) identified this patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=112437
r112437 | spop | 2006-03-28 04:19:26 +0000 (Tue, 28 Mar 2006)
Output compiling the minimized testcase:
elm3b145% /opt/gcc-nightly/trunk/bin/gcc -O2 -ftree-loop-linear -c uloop.c
uloop.c: In function foo:
uloop.c:3: internal compiler error: vector VEC(ddr_p,base) index domain error,
in try_interchange_loops at tree-loop-linear.c:183
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: ICE in try_interchange_loops with -ftree-loop-linear
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
