[Bug rtl-optimization/43229] New: [4.5 Regression] ice expand_debug_expr, at cfgexpand.c:2957

["jv244 at cam dot ac dot uk" <gcc-bugzilla at gcc dot gnu dot org>]

For:

MODULE ai_geminals_debug
  REAL(8)                      :: kab
  CONTAINS
  SUBROUTINE init_grs(ya,yb,rA,rB)
    REAL(8), DIMENSION(6)                   :: C, D
    eab = SUM(C*D)
    kab = EXP(-eab)
  END SUBROUTINE init_grs
END MODULE ai_geminals_debug

leads to an ice (march=native so might be target dependent):

> gfortran   -g -O3  -ffast-math -march=native  -v bug.f90 

Driving: gfortran -g -O3 -ffast-math -march=native -v bug.f90 -lgfortran -lm
-shared-libgcc
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/data03/vondele/gcc_trunk/build/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /data03/vondele/gcc_trunk/gcc/configure --disable-bootstrap
--prefix=/data03/vondele/gcc_trunk/build --enable-languages=c,c++,fortran
--disable-multilib --with-ppl=/data03/vondele/gcc_trunk/build/
--with-cloog=/data03/vondele/gcc_trunk/build/
--with-libelf=/data03/vondele/libelf-0.8.12/build/ --enable-gold --enable-lto
--enable-plugins
Thread model: posix
gcc version 4.5.0 20100302 (experimental) [trunk revision 157164] (GCC) 
COLLECT_GCC_OPTIONS='-g' '-O3' '-ffast-math'  '-v' '-shared-libgcc'

/data03/vondele/gcc_trunk/build/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/f951
bug.f90 -march=k8-sse3 -mcx16 -msahf --param l1-cache-size=64 --param
l1-cache-line-size=64 --param l2-cache-size=1024 -mtune=k8 -quiet -dumpbase
bug.f90 -auxbase bug -g -O3 -version -ffast-math -fintrinsic-modules-path
/data03/vondele/gcc_trunk/build/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/finclude
-o /tmp/ccBhxqrU.s
GNU Fortran (GCC) version 4.5.0 20100302 (experimental) [trunk revision 157164]
(x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.3.1 20080507 (prerelease) [gcc-4_3-branch
revision 135036], GMP version 4.2.4, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU Fortran (GCC) version 4.5.0 20100302 (experimental) [trunk revision 157164]
(x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.3.1 20080507 (prerelease) [gcc-4_3-branch
revision 135036], GMP version 4.2.4, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
 <reduc_plus_expr 0x7f0b90414390
    type <vector_type 0x7f0b90574d20
        type <real_type 0x7f0b905230a8 real(kind=8) DF
            size <integer_cst 0x7f0b90507a50 constant 64>
            unit size <integer_cst 0x7f0b90507a78 constant 8>
            align 64 symtab 0 alias set 2 canonical type 0x7f0b905230a8
precision 64
            pointer_to_this <pointer_type 0x7f0b905232a0>>
        V2DF
        size <integer_cst 0x7f0b90507c58 constant 128>
        unit size <integer_cst 0x7f0b90507c80 constant 16>
        align 128 symtab 0 alias set 2 canonical type 0x7f0b90574d20 nunits 2
        pointer_to_this <pointer_type 0x7f0b9057ee70>>

    arg 0 <ssa_name 0x7f0b9040c6e0 type <vector_type 0x7f0b90574d20>
        visited var <var_decl 0x7f0b9040b8c0 vect_var_.28>def_stmt
vect_var_.28_51 = vect_var_.27_49 + vect_var_.28_65;

        version 51>>
bug.f90: In function ?init_grs?:
bug.f90:4:0: internal compiler error: in expand_debug_expr, at cfgexpand.c:2957
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: [4.5 Regression] ice expand_debug_expr, at
                    cfgexpand.c:2957
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43229