[Bug tree-optimization/56321] [4.8 Regression] ICE:segfault in midend for -funsafe-math-optimizations -O3

[ktkachov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56321

--- Comment #9 from ktkachov at gcc dot gnu.org 2013-02-15 11:08:38 UTC ---
Created attachment 29463
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29463
Slightly modified testcase

This testcase is similar, but gives the error, I think it has the same cause,
might be helpful:
testcase.c: In function 'foo':
testcase.c:2:6: error: virtual use of statement not up-to-date
 void foo(int n, int nreps, float tdgefa, float tdgesl)
      ^
# .MEM_25 = VDEF <_7>
printf ("%f\n", _24);
testcase.c:2:6: internal compiler error: verify_ssa failed
0x844aec execute_function_todo
    /work/kyrtka01/local-checkouts/aarch32-trunk-testing/gcc/gcc/passes.c:1967
0x846d3d execute_todo
    /work/kyrtka01/local-checkouts/aarch32-trunk-testing/gcc/gcc/passes.c:1999