From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 4 Nov 1993 18:29:59 +0000 (-0500)
Subject: (expand_function_start): If not optimizing, ensure we mark context
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e5884dacd58235ba11d43a627087fbb36d1d55ad;p=gcc.git

(expand_function_start): If not optimizing, ensure we mark context
display regs as live for the entire function.

From-SVN: r5995
---

diff --git a/gcc/function.c b/gcc/function.c
index aa7149c983d..53918e9bb99 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -4860,6 +4860,12 @@ expand_function_start (subr, parms_have_cleanups)
 #endif
       last_ptr = copy_to_reg (gen_rtx (MEM, Pmode,
 				       memory_address (Pmode, last_ptr)));
+
+      /* If we are not optimizing, ensure that we know that this
+	 piece of context is live over the entire function.  */
+      if (! optimize)
+	save_expr_regs = gen_rtx (EXPR_LIST, VOIDmode, last_ptr,
+				  save_expr_regs);
     }
 
   /* After the display initializations is where the tail-recursion label