From 675b92cc53934362279f772da8cd4bedddd8f32b Mon Sep 17 00:00:00 2001
From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 20 Jul 2001 20:07:58 +0000
Subject: 	* rtlanal.c (set_noop_p): Return true for noop jumps.

	* expr.c (emit_single_push_insn): Add call to push expander.
	* expr.h (optab_index): Add OTI_push
	(push_optab): New constant.
	* genopinit.c (optabs): Add push_optab.
	* optabs.c (init_optab): Init push optab.
	* md.texi (push??1): Document


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44210 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/rtlanal.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'gcc/rtlanal.c')

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 90562efab6a..2f9696cc1fc 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -998,6 +998,9 @@ set_noop_p (set)
   if (GET_CODE (dst) == MEM && GET_CODE (src) == MEM)
     return rtx_equal_p (dst, src);
 
+  if (dst == pc_rtx && src == pc_rtx)
+    return 1;
+
   if (GET_CODE (dst) == SIGN_EXTRACT
       || GET_CODE (dst) == ZERO_EXTRACT)
     return rtx_equal_p (XEXP (dst, 0), src)
-- 
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