From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 12 Dec 2011 19:43:49 +0000 (+0100)
Subject: re PR middle-end/51510 (gcc for arm-linux-gnueabi ICEs on gcc.c-torture/execute/20050... 
X-Git-Tag: releases/gcc-4.6.3~269
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41ceed5b4de04681dec23422500b9ebb1780f63e;p=thirdparty%2Fgcc.git

re PR middle-end/51510 (gcc for arm-linux-gnueabi ICEs on gcc.c-torture/execute/20050713-1.c due to PR50074+PR51323 fix)

	PR middle-end/51510
	* calls.c (internal_arg_pointer_based_exp_scan): Don't use
	VEC_safe_grow_cleared if idx is smaller than VEC_length.

From-SVN: r182260
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b1b83aca5d25..1a1a038fe680 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2011-12-12  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/51510
+	* calls.c (internal_arg_pointer_based_exp_scan): Don't use
+	VEC_safe_grow_cleared if idx is smaller than VEC_length.
+
 	Backported from mainline
 	2011-12-11  Jakub Jelinek  <jakub@redhat.com>
 
diff --git a/gcc/calls.c b/gcc/calls.c
index d5779f38d4c1..c978e6137681 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -1595,9 +1595,11 @@ internal_arg_pointer_based_exp_scan (void)
 	    val = internal_arg_pointer_based_exp (SET_SRC (set), false);
 	  if (val != NULL_RTX)
 	    {
-	      VEC_safe_grow_cleared (rtx, heap,
-				     internal_arg_pointer_exp_state.cache,
-				     idx + 1);
+	      if (idx
+		  >= VEC_length (rtx, internal_arg_pointer_exp_state.cache))
+		VEC_safe_grow_cleared (rtx, heap,
+				       internal_arg_pointer_exp_state.cache,
+				       idx + 1);
 	      VEC_replace (rtx, internal_arg_pointer_exp_state.cache,
 			   idx, val);
 	    }