Attachment 149247 Details for Bug 229459 – Patch that fixes the bug by silencing the warning

[patch] Patch that fixes the bug by silencing the warning

gcc-sra-nowarn-anon-bitfld.patch (text/plain), 2.69 KB, created by Alexandre Oliva on 2007-03-05 07:35:11 UTC

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Creator: Alexandre Oliva

Created: 2007-03-05 07:35:11 UTC

Size: 2.69 KB

patch

obsolete

>for  gcc/ChangeLog
>from  Alexandre Oliva  <aoliva@redhat.com>
>
>	* c-decl.c (grokdeclarator): Disable warnings for anonymous
>	bitfields.
>	* tree-sra.c (instantiate_element): Propagate disabled warnings
>	from the element itself to the created variable.
>
>for  gcc/cp/ChangeLog
>from  Alexandre Oliva  <aoliva@redhat.com>
>
>	* decl.c (grokdeclarator): Disable warnings for anonymous
>	bitfields.
>
>Index: trunk/gcc/c-decl.c
>===================================================================
>--- trunk.orig/gcc/c-decl.c	2007-02-27 01:59:21.000000000 -0300
>+++ trunk/gcc/c-decl.c	2007-03-05 04:22:21.000000000 -0300
>@@ -1,6 +1,6 @@
> /* Process declarations and variables for C compiler.
>    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
>-   2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
>+   2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
> 
> This file is part of GCC.
> 
>@@ -4760,6 +4760,8 @@ grokdeclarator (const struct c_declarato
> 	type = c_build_qualified_type (type, type_quals);
> 	decl = build_decl (FIELD_DECL, declarator->u.id, type);
> 	DECL_NONADDRESSABLE_P (decl) = bitfield;
>+	if (bitfield && !declarator->u.id)
>+	  TREE_NO_WARNING (decl) = 1;
> 
> 	if (size_varies)
> 	  C_DECL_VARIABLE_SIZE (decl) = 1;
>Index: trunk/gcc/cp/decl.c
>===================================================================
>--- trunk.orig/gcc/cp/decl.c	2007-03-03 03:53:47.000000000 -0300
>+++ trunk/gcc/cp/decl.c	2007-03-05 04:24:34.000000000 -0300
>@@ -1,6 +1,6 @@
> /* Process declarations and variables for C++ compiler.
>    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
>-   2001, 2002, 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
>+   2001, 2002, 2003, 2004, 2005, 2006, 2007  Free Software Foundation, Inc.
>    Contributed by Michael Tiemann (tiemann@cygnus.com)
> 
> This file is part of GCC.
>@@ -8539,6 +8539,9 @@ grokdeclarator (const cp_declarator *dec
> 	      {
> 		decl = build_decl (FIELD_DECL, unqualified_id, type);
> 		DECL_NONADDRESSABLE_P (decl) = bitfield;
>+		if (bitfield && !unqualified_id)
>+		  TREE_NO_WARNING (decl) = 1;
>+
> 		if (storage_class == sc_mutable)
> 		  {
> 		    DECL_MUTABLE_P (decl) = 1;
>Index: trunk/gcc/tree-sra.c
>===================================================================
>--- trunk.orig/gcc/tree-sra.c	2007-03-03 03:53:50.000000000 -0300
>+++ trunk/gcc/tree-sra.c	2007-03-05 04:17:47.000000000 -0300
>@@ -1240,7 +1240,8 @@ instantiate_element (struct sra_elt *elt
>       DECL_DEBUG_EXPR_IS_FROM (var) = 1;
>       
>       DECL_IGNORED_P (var) = 0;
>-      TREE_NO_WARNING (var) = TREE_NO_WARNING (base);
>+      TREE_NO_WARNING (var) = TREE_NO_WARNING (base)
>+	|| (elt->element ? TREE_NO_WARNING (elt->element) : false);
>     }
>   else
>     {

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Attachments on bug 229459: 148471 | 149247