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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204685 138bc75d-0d04-0410-961f-82ee72b054a4