[Bug tree-optimization/48988] [4.7 regression] ICE at pred_chain_length_cmp at tree-ssa-uninit.c:1624

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48988

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-05-21 
09:27:39 UTC ---
To reproduce on Linux, in the build dir:

  cp gcc/ada/rts/system.ads .
  chmod a+w system.ads
  edit system.ads and change ZCX_By_Default to False
  gcc/gnat1 gcc/ada/rts/g-catiio.adb -Igcc/ada/rts -Wall -O

This breaks the compiler on all SJLJ platforms, e.g. arm-linux.