From: Roger Sayle <roger@eyesopen.com>
Date: Thu, 11 Jul 2002 12:29:07 +0000 (+0000)
Subject: c-decl.c (duplicate_decls): Preserve the noreturn attribute on non-ANSI builtin funct... 
X-Git-Tag: releases/gcc-3.3.0~3864
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e65a2d65e000030f605ed9e8b921a68131eeb2dc;p=thirdparty%2Fgcc.git

c-decl.c (duplicate_decls): Preserve the noreturn attribute on non-ANSI builtin functions.


	* c-decl.c (duplicate_decls): Preserve the noreturn attribute on
	non-ANSI builtin functions.

	* gcc.c-torture/execute/builtin-noret-1.c: Test non-ANSI functions.

From-SVN: r55396
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 11314a1f7f0a..4bd40857b37f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2002-07-11  Roger Sayle  <roger@eyesopen.com>
+
+	* c-decl.c (duplicate_decls): Preserve the noreturn attribute on
+	non-ANSI builtin functions.
+
 Thu Jul 11 11:31:12 2002  J"orn Rennecke <joern.rennecke@superh.com>
 
 	* rtl.h (gen_rtx_CONST_VECTOR): Declare.
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index a32b7835ca1c..8551ba55dc4b 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -1764,11 +1764,6 @@ duplicate_decls (newdecl, olddecl, different_binding_level)
       COPY_DECL_RTL (olddecl, newdecl);
 
       /* Merge the type qualifiers.  */
-      if (TREE_CODE (olddecl) == FUNCTION_DECL
-	  && DECL_BUILT_IN_NONANSI (olddecl) && TREE_THIS_VOLATILE (olddecl)
-	  && ! TREE_THIS_VOLATILE (newdecl))
-	TREE_THIS_VOLATILE (write_olddecl) = 0;
-
       if (TREE_READONLY (newdecl))
 	TREE_READONLY (write_olddecl) = 1;
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f2800854a96c..11cb55e0f32d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2002-07-11  Roger Sayle  <roger@eyesopen.com>
+
+	* gcc.c-torture/execute/builtin-noret-1.c: Test non-ANSI functions.
+
 2002-07-10  Roger Sayle  <roger@eyesopen.com>
 
 	* gcc.c-torture/execute/20000217-1.c: Fix usage of "abort".
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtin-noret-1.c b/gcc/testsuite/gcc.c-torture/execute/builtin-noret-1.c
index cfd78991214e..9cd3e84614b7 100644
--- a/gcc/testsuite/gcc.c-torture/execute/builtin-noret-1.c
+++ b/gcc/testsuite/gcc.c-torture/execute/builtin-noret-1.c
@@ -3,10 +3,8 @@
 
 extern void abort (void);
 extern void exit (int);
-#if 0 /* Doesn't work with prototype (bug?).  */
 extern void _exit (int);
 extern void _Exit (int);
-#endif
 
 extern void tabort (void);
 extern void texit (void);