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re PR middle-end/26659 (gcc.target/powerpc/ppc-vector-memset.c fails on the mainline)

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2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26659
	* builtins.c (get_pointer_alignment): Prefer alignment
	information from decls over that from types.

From-SVN: r112048
This commit is contained in:
Richard Guenther 2006-03-14 09:53:36 +00:00 • committed by Richard Biener
parent 2f96b75442
commit 7de805590a
2 changed files with 14 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2006-03-14 Richard Guenther <rguenther@suse.de>
PR middle-end/26659
* builtins.c (get_pointer_alignment): Prefer alignment
information from decls over that from types.
2006-03-14 Andrew Pinski <pinskia@physics.uc.edu>
PR target/26657

13
gcc/builtins.c
View file

@ -275,21 +275,24 @@ get_pointer_alignment (tree exp, unsigned int max_align)
case ADDR_EXPR:
/* See what we are pointing at and look at its alignment. */
exp = TREE_OPERAND (exp, 0);
inner = max_align;
while (handled_component_p (exp))
{
if (TREE_CODE (exp) == COMPONENT_REF)
align = MIN (align, DECL_ALIGN (TREE_OPERAND (exp, 1)));
inner = MIN (inner, DECL_ALIGN (TREE_OPERAND (exp, 1)));
exp = TREE_OPERAND (exp, 0);
}
if (TREE_CODE (exp) == FUNCTION_DECL)
align = MIN (align, FUNCTION_BOUNDARY);
align = FUNCTION_BOUNDARY;
else if (DECL_P (exp))
align = MIN (align, DECL_ALIGN (exp));
align = MIN (inner, DECL_ALIGN (exp));
#ifdef CONSTANT_ALIGNMENT
else if (CONSTANT_CLASS_P (exp))
align = MIN (align, (unsigned)CONSTANT_ALIGNMENT (exp, align));
align = CONSTANT_ALIGNMENT (exp, align);
#endif
return align;
else
align = MIN (align, inner);
return MIN (align, max_align);
default:
return align;