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tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Make case self-contained. 

* tree-ssa-loop-ivopts.c (may_be_nonaddressable_p) <VIEW_CONVERT_EXPR>:
	Make case self-contained.
	<ARRAY_REF>: Test TYPE_NONALIASED_COMPONENT flag.
ada/
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_String_Literal_Subtype>:
	Set TYPE_NONALIASED_COMPONENT on the array type.

From-SVN: r144021
This commit is contained in:
Eric Botcazou 2009-02-08 23:10:00 +00:00 committed by Eric Botcazou
parent ede965edbc
commit 9a58d4d27c
4 changed files with 17 additions and 6 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-02-08 Eric Botcazou <ebotcazou@adacore.com>
* tree-ssa-loop-ivopts.c (may_be_nonaddressable_p) <VIEW_CONVERT_EXPR>:
Make case self-contained.
<ARRAY_REF>: Test TYPE_NONALIASED_COMPONENT flag.
2009-02-07 Anatoly Sokolov <aesok@post.ru>
* config/avr/avr.c (avr_mcu_t): Add ata6289 device.

5
gcc/ada/ChangeLog
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@ -1,3 +1,8 @@
2009-02-08 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_String_Literal_Subtype>:
Set TYPE_NONALIASED_COMPONENT on the array type.
2009-01-31 Laurent GUERBY <laurent@guerby.net>
* gcc-interface/Makefile.in: Fix mipsel linux handling.

1
gcc/ada/gcc-interface/decl.c
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@ -2615,6 +2615,7 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
gnu_type
= build_array_type (gnat_to_gnu_type (Component_Type (gnat_entity)),
gnu_index_type);
TYPE_NONALIASED_COMPONENT (gnu_type) = 1;
copy_alias_set (gnu_type, gnu_string_type);
}
break;

11
gcc/tree-ssa-loop-ivopts.c
View File

@ -1562,15 +1562,14 @@ may_be_nonaddressable_p (tree expr)
and make them look addressable. After some processing the
non-addressability may be uncovered again, causing ADDR_EXPRs
of inappropriate objects to be built. */
if (is_gimple_reg (TREE_OPERAND (expr, 0))
|| !is_gimple_addressable (TREE_OPERAND (expr, 0)))
return true;
/* ... fall through ... */
return is_gimple_reg (TREE_OPERAND (expr, 0))
|| !is_gimple_addressable (TREE_OPERAND (expr, 0))
|| may_be_nonaddressable_p (TREE_OPERAND (expr, 0));
case ARRAY_REF:
case ARRAY_RANGE_REF:
return may_be_nonaddressable_p (TREE_OPERAND (expr, 0));
return TYPE_NONALIASED_COMPONENT (TREE_TYPE (TREE_OPERAND (expr, 0)))
|| may_be_nonaddressable_p (TREE_OPERAND (expr, 0));
CASE_CONVERT:
return true;