OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

(mem_aligned_8): Don't assume addresses with 

MEM_IN_STRUCT_P set are 8 byte aligned.

From-SVN: r7128
This commit is contained in:
Jim Wilson 1994-04-21 12:56:11 -07:00
parent 9db8b14a27
commit f5da225ef4
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
gcc/config/sparc/sparc.c
View File

@ -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. */