66 lines
2.1 KiB
Diff
66 lines
2.1 KiB
Diff
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2007-10-01 Alexandre Oliva <aoliva@redhat.com>
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* decl.c (duplicate_decls): Preserve linkage flags for mere
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redeclarations of gnu_inline definitions.
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* g++.dg/ext/gnu-inline-global-redecl.C: New.
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--- gcc/cp/decl.c.orig 2007-09-28 00:02:33.000000000 -0300
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+++ gcc/cp/decl.c 2007-10-01 16:33:10.000000000 -0300
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@@ -1846,24 +1846,24 @@ duplicate_decls (tree newdecl, tree oldd
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new_template = NULL_TREE;
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if (DECL_LANG_SPECIFIC (newdecl) && DECL_LANG_SPECIFIC (olddecl))
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{
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- bool old_decl_gnu_inline;
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+ bool new_redefines_gnu_inline = false;
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- if ((DECL_INTERFACE_KNOWN (olddecl)
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- && TREE_CODE (olddecl) == FUNCTION_DECL)
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- || (TREE_CODE (olddecl) == TEMPLATE_DECL
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- && TREE_CODE (DECL_TEMPLATE_RESULT (olddecl)) == FUNCTION_DECL))
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+ if (new_defines_function
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+ && ((DECL_INTERFACE_KNOWN (olddecl)
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+ && TREE_CODE (olddecl) == FUNCTION_DECL)
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+ || (TREE_CODE (olddecl) == TEMPLATE_DECL
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+ && (TREE_CODE (DECL_TEMPLATE_RESULT (olddecl))
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+ == FUNCTION_DECL))))
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{
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tree fn = olddecl;
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if (TREE_CODE (fn) == TEMPLATE_DECL)
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fn = DECL_TEMPLATE_RESULT (olddecl);
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- old_decl_gnu_inline = GNU_INLINE_P (fn) && DECL_INITIAL (fn);
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+ new_redefines_gnu_inline = GNU_INLINE_P (fn) && DECL_INITIAL (fn);
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}
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- else
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- old_decl_gnu_inline = false;
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- if (!old_decl_gnu_inline)
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+ if (!new_redefines_gnu_inline)
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{
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DECL_INTERFACE_KNOWN (newdecl) |= DECL_INTERFACE_KNOWN (olddecl);
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DECL_NOT_REALLY_EXTERN (newdecl) |= DECL_NOT_REALLY_EXTERN (olddecl);
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--- gcc/testsuite/g++.dg/ext/gnu-inline-global-redecl.C 1970-01-01 00:00:00.000000000 +0000
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+++ gcc/testsuite/g++.dg/ext/gnu-inline-global-redecl.C 2007-10-01 16:45:49.000000000 -0300
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@@ -0,0 +1,19 @@
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+/* Test __attribute__((gnu_inline)).
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+
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+ Check that we don't get out-of-line definitions for extern inline
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+ gnu_inline functions, regardless of redeclaration.
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+
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+ */
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+
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+/* { dg-do link } */
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+/* { dg-options "-O" } */ // such that static functions are optimized out
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+
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+#include "gnu-inline-common.h"
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+
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+decl(extern, fn)
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+gnuindef(fn, 0)
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+decl(extern, fn)
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+
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+int main () {
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+ fn ();
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+}
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