From: Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
Date: Fri, 1 Sep 2000 14:48:11 +0000 (+0000)
Subject: flow.c (init_propagate_block_info): Don't mark frame dead at end of function if retur... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6324d2bbb6e6dd180de74234c762523c2a946838;p=gcc.git

flow.c (init_propagate_block_info): Don't mark frame dead at end of function if returns wiht stack pointer depressed.

	* flow.c (init_propagate_block_info): Don't mark frame dead at end
	of function if returns wiht stack pointer depressed.

From-SVN: r36099
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d82386ac82a..a3951907e63 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Fri Sep  1 10:59:47 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* flow.c (init_propagate_block_info): Don't mark frame dead at end
+	of function if returns wiht stack pointer depressed.
+
 2000-09-01  Andrew Haley  <aph@redhat.com>
 
         * dwarf2out.c (stack_adjust_offset): New function.
diff --git a/gcc/flow.c b/gcc/flow.c
index 0afdc77eb02..6f1ba7cf004 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -3780,6 +3780,9 @@ init_propagate_block_info (bb, live, local_set, flags)
      recording any such that are made and show them dead at the end.  We do
      a very conservative and simple job here.  */
   if (optimize
+      && ! (TREE_CODE (TREE_TYPE (current_function_decl)) == FUNCTION_TYPE
+	    && (TYPE_RETURNS_STACK_DEPRESSED
+		(TREE_TYPE (current_function_decl))))
       && (flags & PROP_SCAN_DEAD_CODE)
       && (bb->succ == NULL
 	  || (bb->succ->succ_next == NULL