re PR target/58853 (ICE in expand_set_or_movmem_prologue_epilogue_by_misaligned_moves)

re PR target/58853 (ICE in expand_set_or_movmem_prologue_epilogue_by_misaligned_moves)

	PR target/58853
	* config/i386/x86-tune.def
	(X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Rename from
	TARGET_MISALIGNED_MOVE_STRING_PROLOGUES.
	* config/i386/i386.h
	(TARGET_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Rename from
	TARGET_MISALIGNED_MOVE_STRING_PROLOGUES_EPILOGUES.  Update for renamed
	X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES.
	* config/i386/i386.c (ix86_expand_set_or_movmem): Use
	TARGET_MISALIGNED_MOVE_STRING_PRO_EPILOGUES to calculate
	misaligned_prologue_used.  Check that
	desired_aling <= epilogue_size_needed.

testsuite/ChangeLog:

	PR target/58853
	* gcc.target/i386/pr58853.c: New test.

Co-Authored-By: H.J. Lu <hongjiu.lu@intel.com>
From-SVN: r204685