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| author | Jim Wilson <wilson@gcc.gnu.org> | 1994-04-21 12:56:11 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1994-04-21 12:56:11 -0700 |
| commit | f5da225ef4db99f6efa1a5f81a820a00a57cc12f (patch) | |
| tree | 13c3fac533019e8fd567a08e5f82fde82b522428 /gcc | |
| parent | 9db8b14a27423427cff86b0d399ece20a5e36965 (diff) | |
| download | gcc-f5da225ef4db99f6efa1a5f81a820a00a57cc12f.zip gcc-f5da225ef4db99f6efa1a5f81a820a00a57cc12f.tar.gz gcc-f5da225ef4db99f6efa1a5f81a820a00a57cc12f.tar.bz2 | |
(mem_aligned_8): Don't assume addresses with
MEM_IN_STRUCT_P set are 8 byte aligned.
From-SVN: r7128
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/sparc/sparc.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c index 4b8c162..7b90997 100644 --- a/gcc/config/sparc/sparc.c +++ b/gcc/config/sparc/sparc.c @@ -1032,10 +1032,13 @@ mem_aligned_8 (mem) } /* Anything else we know is properly aligned unless TARGET_UNALIGNED_DOUBLES is true, in which case we can only assume that an access is aligned if - it is to an aggregate, it is to a constant address, or the address - involves a LO_SUM. */ - else if (! TARGET_UNALIGNED_DOUBLES || MEM_IN_STRUCT_P (mem) - || CONSTANT_P (addr) || GET_CODE (addr) == LO_SUM) + it is to a constant address, or the address involves a LO_SUM. + + We used to assume an address was aligned if MEM_IN_STRUCT_P was true. + That assumption was deleted so that gcc generated code can be used with + memory allocators that only guarantee 4 byte alignment. */ + else if (! TARGET_UNALIGNED_DOUBLES || CONSTANT_P (addr) + || GET_CODE (addr) == LO_SUM) return 1; /* An obviously unaligned address. */ |