[Bug target/48990] MIPS wrong code error with -O1

[pkoning at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48990

--- Comment #5 from Paul Koning <pkoning at gcc dot gnu.org> 2011-05-13 18:20:42 UTC ---
Created attachment 24242
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24242
Assembly output from -mabi=n32 case, GCC 4.5.1

Here is the assembly file (with -dA so basic block boundaries are marked).  The
offending instruction is the last one in BB 3; the instruction that requires
the original value from A0 is the last one in BB 4.