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emit-rtl.c (set_mem_attributes): If making object, can set alignment from type.

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* emit-rtl.c (set_mem_attributes): If making object, can set alignment
	from type.
	(replace_equiv_address): Call update_temp_slot_address.

From-SVN: r46940
This commit is contained in:
Richard Kenner 2001-11-12 10:21:09 +00:00 • committed by Richard Kenner
parent 749552c44b
commit 40c0668bf7
2 changed files with 11 additions and 5 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
Mon Nov 12 05:18:42 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (set_mem_attributes): If making object, can set alignment
from type.
(replace_equiv_address): Call update_temp_slot_address.
* dwarf2out.c (loc_descriptor_from_tree, case COMPOUND_EXPR): New case.
* alias.c (nonoverlapping_memrefs_p): Handle DECL_RTL being a CONCAT.

12
gcc/emit-rtl.c
View file

@ -1699,6 +1699,11 @@ set_mem_attributes (ref, t, objectp)
if ((objectp || DECL_P (t)) && ! AGGREGATE_TYPE_P (type))
MEM_SCALAR_P (ref) = 1;
/* We can set the alignment from the type if we are makign an object or
if this is an INDIRECT_REF. */
if (objectp || TREE_CODE (t) == INDIRECT_REF)
align = TYPE_ALIGN (type);
/* If the size is known, we can set that. */
if (TYPE_SIZE_UNIT (type) && host_integerp (TYPE_SIZE_UNIT (type), 1))
size = GEN_INT (tree_low_cst (TYPE_SIZE_UNIT (type), 1));
@ -1733,11 +1738,7 @@ set_mem_attributes (ref, t, objectp)
align = DECL_ALIGN (t);
}
/* If this is an INDIRECT_REF, we know its alignment. */
else if (TREE_CODE (t) == INDIRECT_REF)
align = TYPE_ALIGN (type);
/* Likewise for constants. */
/* If this is a constant, we know the alignment. */
else if (TREE_CODE_CLASS (TREE_CODE (t)) == 'c')
{
align = TYPE_ALIGN (type);
@ -1961,6 +1962,7 @@ replace_equiv_address (memref, addr)
{
/* change_address_1 copies the memory attribute structure without change
and that's exactly what we want here. */
update_temp_slot_address (XEXP (memref, 0), addr);
return change_address_1 (memref, VOIDmode, addr, 1);
}