From: Richard Kenner <kenner@gcc.gnu.org>
Date: Wed, 11 May 1994 20:22:02 +0000 (-0400)
Subject: (emit_call_1): Put new function usage data at end of any data already
X-Git-Tag: misc/cutover-egcs-0~6670
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e59e60a78f6e12dabf8b71a44465e9b91422ce3b;p=thirdparty%2Fgcc.git

(emit_call_1): Put new function usage data at end of any data already
there.

From-SVN: r7273
---

diff --git a/gcc/calls.c b/gcc/calls.c
index 4ca048337030..99c8a602bbb6 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -408,8 +408,20 @@ emit_call_1 (funexp, funtype, stack_size, struct_value_size, next_arg_reg,
   if (! call_insn)
     abort ();
 
-  /* Put the register usage information on the CALL.  */
-  CALL_INSN_FUNCTION_USAGE (call_insn) = call_fusage;
+  /* Put the register usage information on the CALL.  If there is already
+     some usage information, put ours at the end.  */
+  if (CALL_INSN_FUNCTION_USAGE (call_insn))
+    {
+      rtx link;
+
+      for (link = CALL_INSN_FUNCTION_USAGE (call_insn); XEXP (link, 1) != 0;
+	   link = XEXP (link, 1))
+	;
+
+      XEXP (link, 1) = call_fusage;
+    }
+  else
+    CALL_INSN_FUNCTION_USAGE (call_insn) = call_fusage;
 
   /* If this is a const call, then set the insn's unchanging bit.  */
   if (is_const)