Richard Biener
5d74e749bc
OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gcc33?expand=0&rev=3
40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
Index: gcc/emit-rtl.c
|
|
===================================================================
|
|
--- gcc/emit-rtl.c.orig 2009-11-20 13:04:56.000000000 +0100
|
|
+++ gcc/emit-rtl.c 2009-11-20 13:05:52.000000000 +0100
|
|
@@ -1875,6 +1875,22 @@ component_ref_for_mem_expr (ref)
|
|
TREE_OPERAND (ref, 1));
|
|
}
|
|
|
|
+static int indirect_ref_nonzero_ofs_p PARAMS ((tree));
|
|
+static int
|
|
+indirect_ref_nonzero_ofs_p (t)
|
|
+ tree t;
|
|
+{
|
|
+ tree op0, op1;
|
|
+ t = TREE_OPERAND (t, 0);
|
|
+ if (TREE_CODE (t) != PLUS_EXPR)
|
|
+ return 0;
|
|
+ op0 = TREE_OPERAND (t, 0);
|
|
+ op1 = TREE_OPERAND (t, 1);
|
|
+ if (TREE_CODE (op1) == INTEGER_CST && (1 || !integer_zerop (op1)))
|
|
+ return 1;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
/* Given REF, a MEM, and T, either the type of X or the expression
|
|
corresponding to REF, set the memory attributes. OBJECTP is nonzero
|
|
if we are making a new object of this type. BITPOS is nonzero if
|
|
@@ -2106,6 +2122,11 @@ set_mem_attributes_minus_bitpos (ref, t,
|
|
|| TREE_CODE (t) == ARRAY_RANGE_REF
|
|
|| TREE_CODE (t) == BIT_FIELD_REF)
|
|
MEM_IN_STRUCT_P (ref) = 1;
|
|
+ /* An INDIRECT_REF of an PLUS expression of something with a
|
|
+ non-zero offset also is part of an aggregate. */
|
|
+ else if (TREE_CODE (t) == INDIRECT_REF
|
|
+ && indirect_ref_nonzero_ofs_p (t))
|
|
+ MEM_IN_STRUCT_P (ref) = 1;
|
|
}
|
|
|
|
void
|