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| author | Uros Bizjak <ubizjak@gmail.com> | 2013-11-11 21:02:19 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2013-11-11 21:02:19 +0100 |
| commit | 5783ad0ea7403304e4ea9c06818373a3bc7e62b1 (patch) | |
| tree | 751c66d387964afc5ded5eb70600325d74f8b33e /gcc/config/i386/x86-tune.def | |
| parent | eb47f18904bc0ec0556a217beb0ae15a4a2d9b11 (diff) | |
| download | gcc-5783ad0ea7403304e4ea9c06818373a3bc7e62b1.zip gcc-5783ad0ea7403304e4ea9c06818373a3bc7e62b1.tar.gz gcc-5783ad0ea7403304e4ea9c06818373a3bc7e62b1.tar.bz2 | |
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
Diffstat (limited to 'gcc/config/i386/x86-tune.def')
| -rw-r--r-- | gcc/config/i386/x86-tune.def | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index 1a85ce2..23879f9 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -257,13 +257,13 @@ DEF_TUNE (X86_TUNE_AVOID_MEM_OPND_FOR_CMOVE, "avoid_mem_opnd_for_cmove", as MOVS and STOS (without a REP prefix) to move/set sequences of bytes. */ DEF_TUNE (X86_TUNE_SINGLE_STRINGOP, "single_stringop", m_386 | m_P4_NOCONA) -/* TARGET_MISALIGNED_MOVE_STRING_PROLOGUES: Enable generation of compace - prologues and epilogues by issuing a misaligned moves. This require - target to handle misaligned moves and partial memory stalls resonably - well. - FIXME: This actualy may be a win on more targets than listed here. */ -DEF_TUNE (TARGET_MISALIGNED_MOVE_STRING_PROLOGUES, - "misaligned_move_string_prologues", +/* X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES: Enable generation of + compact prologues and epilogues by issuing a misaligned moves. This + requires target to handle misaligned moves and partial memory stalls + reasonably well. + FIXME: This may actualy be a win on more targets than listed here. */ +DEF_TUNE (X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES, + "misaligned_move_string_pro_epilogues", m_386 | m_486 | m_CORE_ALL | m_AMD_MULTIPLE | m_GENERIC) /* X86_TUNE_USE_SAHF: Controls use of SAHF. */ |