re PR middle-end/50325 (76 new fails with rev. 177691)

re PR middle-end/50325 (76 new fails with rev. 177691)

gcc/
2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
	    Richard Sandiford  <rdsandiford@googlemail.com>

	PR middle-end/50325
	PR middle-end/51192
	* optabs.h (simplify_expand_binop): Declare.
	* optabs.c (simplify_expand_binop): Make global.
	* expmed.c (store_bit_field_1): Use simplify_expand_binop on big
	endian targets if the source cannot be exactly covered by word
	mode chunks.

Co-Authored-By: Richard Sandiford <rdsandiford@googlemail.com>
From-SVN: r183262