From: Eric Botcazou <ebotcazou@adacore.com>
To: gcc-patches@gcc.gnu.org
Cc: Arnaud Charlet <charlet@adacore.com>, Robert Dewar <dewar@adacore.com>
Subject: Re: [Ada] New attribute typ'Deref (address-expr)
Date: Thu, 26 Mar 2015 21:13:00 -0000 [thread overview]
Message-ID: <4252752.5jnP7rpxbL@polaris> (raw)
In-Reply-To: <20150324122620.GA26210@adacore.com>
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> For now it will blow up with a GCC error in the back end, which does
> not know about this attribute yet.
I guess that we don't want to have a half-backed implementation so I have
installed the gigi part. Tested on x86_64-suse-linux.
2015-03-26 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Deref>: New case.
--
Eric Botcazou
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[-- Type: text/x-patch, Size: 841 bytes --]
Index: gcc-interface/trans.c
===================================================================
--- gcc-interface/trans.c (revision 221709)
+++ gcc-interface/trans.c (working copy)
@@ -2469,6 +2469,18 @@ Attribute_to_gnu (Node_Id gnat_node, tre
}
break;
+ case Attr_Deref:
+ prefix_unused = true;
+ gnu_expr = gnat_to_gnu (First (Expressions (gnat_node)));
+ gnu_result_type = get_unpadded_type (Etype (gnat_node));
+ /* This can be a random address so build an alias-all pointer type. */
+ gnu_expr
+ = convert (build_pointer_type_for_mode (gnu_result_type, ptr_mode,
+ true),
+ gnu_expr);
+ gnu_result = build_unary_op (INDIRECT_REF, NULL_TREE, gnu_expr);
+ break;
+
default:
/* This abort means that we have an unimplemented attribute. */
gcc_unreachable ();
prev parent reply other threads:[~2015-03-26 21:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-24 12:26 Arnaud Charlet
2015-03-26 21:13 ` Eric Botcazou [this message]
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