[Bug rtl-optimization/47166] [4.5/4.6 Regression] SpecCpu2000 Ammp segfaults for ARM with -O3 -mthumb

[bernds at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47166

--- Comment #9 from Bernd Schmidt <bernds at gcc dot gnu.org> 2011-01-11 
17:02:40 UTC ---
Created attachment 22945
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22945
Test patch

Could you try the following? It's a variant of a patch Richard Sandiford
recently posted.