From: Alan Modra <amodra@gmail.com>
Date: Wed, 10 Sep 2014 05:02:28 +0000 (+0930)
Subject: re PR debug/60655 (ICE: output_operand: invalid expression as operand)
X-Git-Tag: releases/gcc-4.8.4~235
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1eb3c2a5b42c5ba72c9ee7f8fb204b5be4e1450b;p=thirdparty%2Fgcc.git

re PR debug/60655 (ICE: output_operand: invalid expression as operand)

	PR debug/60655
	* dwarf2out.c (mem_loc_descriptor <PLUS>): Return NULL if addend
	can't be output.

From-SVN: r215103
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ecd14a43fabb..9a34c8e23065 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2014-09-10  Alan Modra  <amodra@gmail.com>
+
+	PR debug/60655
+	* dwarf2out.c (mem_loc_descriptor <PLUS>): Return NULL if addend
+	can't be output.
+
 2014-09-09  Richard Biener  <rguenther@suse.de>
 
 	Backport from mainline
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 77771c09b64c..f387e610114a 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -12234,7 +12234,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
 	      op1 = mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode,
 					VAR_INIT_STATUS_INITIALIZED);
 	      if (op1 == 0)
-		break;
+		return NULL;
 	      add_loc_descr (&mem_loc_result, op1);
 	      add_loc_descr (&mem_loc_result,
 			     new_loc_descr (DW_OP_plus, 0, 0));