[Bug c/49304] New: ICE: code_motion_path_driver, at sel-sched.c:6573 w/ -O3 on ia64 in r174558

[Bug c/49304] New: ICE: code_motion_path_driver, at sel-sched.c:6573 w/ -O3 on ia64 in r174558

[PHHargrove at lbl dot gov]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49304

           Summary: ICE: code_motion_path_driver, at sel-sched.c:6573 w/
                    -O3 on ia64 in r174558
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: PHHargrove@lbl.gov


Created attachment 24452
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24452
preprocessed source to reproduce

This bug is similar to bug 49303 I entered earlier today.  I suspect this
shares a root cause with bug 49303 because minor changes to the source will
produce the ICE reported in that bug rather than this one.

On an ia64/Linux system I get an ICE from code that compiled fine with daily
snapshot compilers for several months, but just recently broke.  The problem is
present at -O3 but not at lower optimization levels.




$ /usr/local/bin/gcc -O3 -c -v -save-temps -DGASNET_SEQ
-I/eng/home/PHHargrove/upc_runtime/g
asnet/smp-conduit -I/eng/home/PHHargrove/upc_runtime/gasnet
-I/eng/home/PHHargrove/upc_runtime/gasnet/BB -I/en
g/home/PHHargrove/upc_runtime/gasnet/other 
-I/eng/home/PHHargrove/upc_runtime/gasnet/extended-ref -c tc2.c
Using built-in specs.
COLLECT_GCC=/usr/local/bin/gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/ia64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: ia64-unknown-linux-gnu
Configured with: /eng/upc/dev/gary/gcc-trunk/src/configure
--enable-languages=c,c++ --disable-bootstrap --disable-multilib
--enable-checking=yes PREFIX=/usr/local/gcc-4-7-0-20110602 CC=/usr/bin/gcc
CFLAGS='-g3 -O0' CXX=/
usr/bin/g++ CXXFLAGS='-g3 -O0'
Thread model: posix 
gcc version 4.7.0 20110602 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-O3' '-c' '-v' '-save-temps' '-D' 'GASNET_SEQ' '-I'
'/eng/home/PHHargrove/upc_runtime/gas
net/smp-conduit' '-I' '/eng/home/PHHargrove/upc_runtime/gasnet' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/
BB' '-I' '/eng/home/PHHargrove/upc_runtime/gasnet/other' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/extende
d-ref' '-c'
 /usr/local/libexec/gcc/ia64-unknown-linux-gnu/4.7.0/cc1 -E -quiet -v -I
/eng/home/PHHargrove/upc_runtime/gasn
et/smp-conduit -I /eng/home/PHHargrove/upc_runtime/gasnet -I
/eng/home/PHHargrove/upc_runtime/gasnet/BB -I
/eng/home/PHHargrove/upc_runtime/gasnet/other -I
/eng/home/PHHargrove/upc_runtime/gasnet/extended-ref -D GASNET_SEQ tc2.c -O3
-fpch-preprocess -o tc2.i
ignoring nonexistent directory
"/usr/local/lib/gcc/ia64-unknown-linux-gnu/4.7.0/../../../../ia64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /eng/home/PHHargrove/upc_runtime/gasnet/smp-conduit
 /eng/home/PHHargrove/upc_runtime/gasnet
 /eng/home/PHHargrove/upc_runtime/gasnet/BB
 /eng/home/PHHargrove/upc_runtime/gasnet/other
 /eng/home/PHHargrove/upc_runtime/gasnet/extended-ref
 /usr/local/lib/gcc/ia64-unknown-linux-gnu/4.7.0/include
 /usr/local/include
 /usr/local/lib/gcc/ia64-unknown-linux-gnu/4.7.0/include-fixed
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-O3' '-c' '-v' '-save-temps' '-D' 'GASNET_SEQ' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/smp-conduit' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/BB' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/other' '-I'
'/eng/home/PHHargrove/upc_runtime/gasnet/extended-ref' '-c'
 /usr/local/libexec/gcc/ia64-unknown-linux-gnu/4.7.0/cc1 -fpreprocessed tc2.i
-quiet -dumpbase tc2.c -auxbase tc2 -O3 -version -o tc2.s
GNU C (GCC) version 4.7.0 20110602 (experimental) (ia64-unknown-linux-gnu)
        compiled by GNU C version 4.3.4 [gcc-4_3-branch revision 152973], GMP
version 4.2.3, MPFR version 2.3.2, MPC version 0.8.1
warning: MPC header version 0.8.1 differs from library version 0.8.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.7.0 20110602 (experimental) (ia64-unknown-linux-gnu)
        compiled by GNU C version 4.3.4 [gcc-4_3-branch revision 152973], GMP
version 4.2.3, MPFR version 2.3.2, MPC version 0.8.1
warning: MPC header version 0.8.1 differs from library version 0.8.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 4a01790fb99ce2eacbb8779c8b3d3355
tc2.c: In function 'gasnete_coll_pf_bcast_TreePutScratch':
tc2.c:67:1: internal compiler error: in code_motion_path_driver, at
sel-sched.c:6573
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug rtl-optimization/49304] ICE: code_motion_path_driver, at sel-sched.c:6573 w/ -O3 on ia64 in r174558

[amonakov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49304

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |amonakov at gcc dot gnu.org
         Resolution|                            |DUPLICATE

--- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> 2011-06-07 09:28:29 UTC ---
This is a duplicate indeed.

*** This bug has been marked as a duplicate of bug 49303 ***