From 70a324958b2556acba361a23255fdf56fa9062aa Mon Sep 17 00:00:00 2001
From: Jan Hubicka <jh@suse.cz>
Date: Wed, 21 Mar 2001 18:54:00 +0100
Subject: * recog.c (push_operand): Recognize new format of push instructions.

From-SVN: r40694
---
 gcc/recog.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

(limited to 'gcc/recog.c')

diff --git a/gcc/recog.c b/gcc/recog.c
index bf8a3e3..195d3f4 100644
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -1358,8 +1358,26 @@ push_operand (op, mode)
 
   op = XEXP (op, 0);
 
-  if (GET_CODE (op) != STACK_PUSH_CODE)
-    return 0;
+  if (PUSH_ROUNDING (GET_MODE_SIZE (mode)) == GET_MODE_SIZE (mode))
+    {
+      if (GET_CODE (op) != STACK_PUSH_CODE)
+	return 0;
+    }
+  else
+    {
+      int rounded_size = PUSH_ROUNDING (GET_MODE_SIZE (mode));
+      if (GET_CODE (op) != PRE_MODIFY
+	  || GET_CODE (XEXP (op, 1)) != PLUS
+	  || XEXP (XEXP (op, 1), 0) != XEXP (op, 0)
+	  || GET_CODE (XEXP (XEXP (op, 1), 1)) != CONST_INT
+#ifdef STACK_GROWS_DOWNWARD
+	  || INTVAL (XEXP (XEXP (op, 1), 1)) != -rounded_size
+#else
+	  || INTVAL (XEXP (XEXP (op, 1), 1)) != rounded_size
+#endif
+	  )
+	return 0;
+    }
 
   return XEXP (op, 0) == stack_pointer_rtx;
 }
-- 
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