* builtins.c (expand_builtin_stpcpy): Un-simplify decay of stpcpy

to strcpy.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84301 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e2cdc66..1456ae9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2004-07-08  Alexandre Oliva  <aoliva@redhat.com>
 
+       * builtins.c (expand_builtin_stpcpy): Un-simplify decay of stpcpy
+       to strcpy.
+
        * expr.h (FUNCTION_ARG_PARTIAL_NREGS): Default to 0.
        (FUNCTION_ARG_PASS_BY_REFERENCE): Likewise.
        (FUNCTION_ARG_CALLEE_COPIES): Likewise.

diff --git a/gcc/builtins.c b/gcc/builtins.c
index 72cf798..9bcef91 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -3090,7 +3090,14 @@ expand_builtin_stpcpy (tree arglist, rtx target, enum machine_mode mode)
 {
   /* If return value is ignored, transform stpcpy into strcpy.  */
   if (target == const0_rtx)
-    return expand_builtin_strcpy (arglist, target, mode);
+    {
+      tree fn = implicit_built_in_decls[BUILT_IN_STRCPY];
+      if (!fn)
+       return 0;
+
+      return expand_expr (build_function_call_expr (fn, arglist),
+                         target, mode, EXPAND_NORMAL);
+    }
 
   if (!validate_arglist (arglist, POINTER_TYPE, POINTER_TYPE, VOID_TYPE))
     return 0;