function.c (clobber_return_register): Clobber the pseudo return register too.

	* function.c (clobber_return_register): Clobber the pseudo return
	register too.

From-SVN: r43011

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 05be51cfbfbf404b8863af2190270bc64dd77663..016586bf4f73f603f0c3556f6e52e3f8d6e7980b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 Fri Jun  8 14:16:33 CEST 2001  Jan Hubicka  <jh@suse.cz>
 
+       * function.c (clobber_return_register): Clobber the pseudo return
+       register too.
+
        * sibcall.c (skip_unreturned_value): New function.
        (call_ends_block_p): Use it.
 

diff --git a/gcc/function.c b/gcc/function.c
index 64df1bd42e6da148d4eee3c7552ba267e0784f14..cef669770a18d07568e3af69ad3dd8d195661a3f 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -6601,6 +6601,17 @@ void
 clobber_return_register ()
 {
   diddle_return_value (do_clobber_return_reg, NULL);
+
+  /* In case we do use pseudo to return value, clobber it too.  */
+  if (DECL_RTL_SET_P (DECL_RESULT (current_function_decl)))
+    {
+      tree decl_result = DECL_RESULT (current_function_decl);
+      rtx decl_rtl = DECL_RTL (decl_result);
+      if (REG_P (decl_rtl) && REGNO (decl_rtl) >= FIRST_PSEUDO_REGISTER)
+       {
+         do_clobber_return_reg (decl_rtl, NULL);
+       }
+    }
 }
 
 static void