From: Jan Hubicka <hubicka@gcc.gnu.org>
Date: Fri, 30 Jan 2004 11:28:37 +0000 (+0000)
Subject: reload.c (secondary_memlocs_elim_used): New static variable.
X-Git-Tag: releases/gcc-4.0.0~10547
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=048b0d2ef95ac9432d33e780f0e6d3337e966244;p=thirdparty%2Fgcc.git

reload.c (secondary_memlocs_elim_used): New static variable.


	* reload.c (secondary_memlocs_elim_used): New static variable.
	(get_secondary_mem): Update it.
	(find_reloads): Use it.

From-SVN: r76950
---

diff --git a/gcc/reload.c b/gcc/reload.c
index c1f2af94500e..83aa8d24f0f8 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -173,6 +173,7 @@ struct decomposition
 
 static rtx secondary_memlocs[NUM_MACHINE_MODES];
 static rtx secondary_memlocs_elim[NUM_MACHINE_MODES][MAX_RECOG_OPERANDS];
+static int secondary_memlocs_elim_used = 0;
 #endif
 
 /* The instruction we are doing reloads for;
@@ -644,6 +645,8 @@ get_secondary_mem (rtx x ATTRIBUTE_UNUSED, enum machine_mode mode,
     }
 
   secondary_memlocs_elim[(int) mode][opnum] = loc;
+  if (secondary_memlocs_elim_used <= opnum)
+    secondary_memlocs_elim_used = opnum + 1;
   return loc;
 }
 
@@ -2540,7 +2543,12 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
   /* The eliminated forms of any secondary memory locations are per-insn, so
      clear them out here.  */
 
-  memset (secondary_memlocs_elim, 0, sizeof secondary_memlocs_elim);
+  if (secondary_memlocs_elim_used)
+    {
+      memset (secondary_memlocs_elim, 0,
+	      sizeof (secondary_memlocs_elim[0]) * secondary_memlocs_elim_used);
+      secondary_memlocs_elim_used = 0;
+    }
 #endif
 
   /* Dispose quickly of (set (reg..) (reg..)) if both have hard regs and it