[Bug c/20760] New: cast to variable-length array type combined with switch statement gives segv

[eabaltz at sophont dot net]

gcc -v:
Configured with: ../gcc-3.4.3/configure --prefix=/u/ki/eabaltz/usr/i386
Thread model: posix
gcc version 3.4.3

command line:
gcc -Wall --save-temps bug.c

this works:
./a.out 1

matrix[0][]:    1.0 -2.0 -3.0
matrix[1][]:    2.0  4.0 -6.0
matrix[2][]:    3.0  6.0  9.0

matrix[0][]:    1.0 -2.0 -3.0
matrix[1][]:    2.0  4.0 -6.0
matrix[2][]:    3.0  6.0  9.0

---

this doesn't:
./a.out 2

matrix[0][]:    1.0 -2.0 -3.0
matrix[1][]:    2.0  4.0 -6.0
matrix[2][]:    3.0  6.0  9.0

Segmentation fault (core dumped)

-- 
           Summary: cast to variable-length array type combined with switch
                    statement gives segv
           Product: gcc
           Version: 3.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eabaltz at sophont dot net
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20760