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| author | Revital Eres <eres@il.ibm.com> | 2009-09-15 10:39:13 +0000 |
|---|---|---|
| committer | Revital Eres <revitale@gcc.gnu.org> | 2009-09-15 10:39:13 +0000 |
| commit | 0601d0cf823bca6293bea3b017e668be2361ed04 (patch) | |
| tree | 6da5176cd614d338ccf9a4e80eb154a56282eeb5 /gcc/targhooks.c | |
| parent | e5e447966658e7be35927f8ba65b20933b052b26 (diff) | |
| download | gcc-0601d0cf823bca6293bea3b017e668be2361ed04.zip gcc-0601d0cf823bca6293bea3b017e668be2361ed04.tar.gz gcc-0601d0cf823bca6293bea3b017e668be2361ed04.tar.bz2 | |
New function for checking misalignment
From-SVN: r151715
Diffstat (limited to 'gcc/targhooks.c')
| -rw-r--r-- | gcc/targhooks.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/targhooks.c b/gcc/targhooks.c index 7535bc1..8480c0b 100644 --- a/gcc/targhooks.c +++ b/gcc/targhooks.c @@ -771,6 +771,23 @@ default_builtin_vector_alignment_reachable (const_tree type, bool is_packed) return true; } +/* By default, assume that a target supports any factor of misalignment + memory access if it supports movmisalign patten. + is_packed is true if the memory access is defined in a packed struct. */ +bool +default_builtin_support_vector_misalignment (enum machine_mode mode, + const_tree type + ATTRIBUTE_UNUSED, + int misalignment + ATTRIBUTE_UNUSED, + bool is_packed + ATTRIBUTE_UNUSED) +{ + if (optab_handler (movmisalign_optab, mode)->insn_code != CODE_FOR_nothing) + return true; + return false; +} + bool default_hard_regno_scratch_ok (unsigned int regno ATTRIBUTE_UNUSED) { |