From patchwork Fri Mar  4 04:58:56 2011
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Subject: build_function_call and TREE_ADDRESSABLE
Date: Thu, 03 Mar 2011 18:58:56 -0000
From: Alan Modra <amodra@gmail.com>
X-Patchwork-Id: 85369
Message-Id: <20110304045856.GY13094@bubble.grove.modra.org>
To: Richard Guenther <richard.guenther@gmail.com>, gcc-patches@gcc.gnu.org

Warn off anyone trying to do as I did, and the bit about inlines is
no longer relevant.  OK to apply?

	* tree.h (TREE_ADDRESSABLE): Note that direct calls set the
	flag on FUNCTION_DECLs.


Index: gcc/tree.h
===================================================================
--- gcc/tree.h	(revision 170665)
+++ gcc/tree.h	(working copy)
@@ -1106,8 +1106,8 @@ extern void omp_clause_range_check_faile
 
 /* In VAR_DECL, PARM_DECL and RESULT_DECL nodes, nonzero means address
    of this is needed.  So it cannot be in a register.
-   In a FUNCTION_DECL, nonzero means its address is needed.
-   So it must be compiled even if it is an inline function.
+   In a FUNCTION_DECL, nonzero means its address is needed.  This even
+   happens on a direct call, making the flag fairly useless.
    In CONSTRUCTOR nodes, it means object constructed must be in memory.
    In LABEL_DECL nodes, it means a goto for this label has been seen
    from a place outside all binding contours that restore stack levels.