From: Mark Mitchell <mark@codesourcery.com>
Date: Fri, 5 Jul 2002 16:37:44 +0000 (+0000)
Subject: re PR c++/6706 (ICE with variable-sized arrays and DWARF-1 output)
X-Git-Tag: releases/gcc-3.1.1~52
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63a1d27cb50ba2b8e1956414211cc8d93df2c184;p=thirdparty%2Fgcc.git

re PR c++/6706 (ICE with variable-sized arrays and DWARF-1 output)

	PR c++/6706
	* dwarfout.c (output_reg_number): Fix warning message.
	(output_bound_representation): Check SAVE_EXPR_RTL is not NULL
	before using it.

	PR c++/6706
	* g++.dg/debug/debug6.C: New test.
	* g++.dg/debug/debug7.C: New test.

From-SVN: r55263
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d33b6fbd6686..411d825e1e36 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2002-07-03  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/6706
+	* dwarfout.c (output_reg_number): Fix warning message.
+	(output_bound_representation): Check SAVE_EXPR_RTL is not NULL
+	before using it.
+	
 2002-07-03  Richard Henderson  <rth@redhat.com>
 
 	* config/i386/i386.md (prologue_get_pc): Issue pop here ...
diff --git a/gcc/dwarfout.c b/gcc/dwarfout.c
index 76b5b75383b4..481d0c0441a3 100644
--- a/gcc/dwarfout.c
+++ b/gcc/dwarfout.c
@@ -2086,7 +2086,8 @@ output_reg_number (rtl)
 
   if (regno >= DWARF_FRAME_REGISTERS)
     {
-      warning_with_decl (dwarf_last_decl, "internal regno botch: regno = %d\n",
+      warning_with_decl (dwarf_last_decl, 
+			 "internal regno botch: `%s' has regno = %d\n",
 			 regno);
       regno = 0;
     }
@@ -2303,7 +2304,8 @@ output_bound_representation (bound, dim_num, u_or_l)
 		   || TREE_CODE (bound) == CONVERT_EXPR)
 	      bound = TREE_OPERAND (bound, 0);
 
-	    if (TREE_CODE (bound) == SAVE_EXPR)
+	    if (TREE_CODE (bound) == SAVE_EXPR 
+		&& SAVE_EXPR_RTL (bound))
 	      output_loc_descriptor
 		(eliminate_regs (SAVE_EXPR_RTL (bound), 0, NULL_RTX));
 	  }
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 56d9ea13c244..afbd316398a3 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2002-07-03  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/6706
+	* g++.dg/debug/debug6.C: New test.
+	* g++.dg/debug/debug7.C: New test.
+
 2002-07-03  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
 
 	PR c++/6944
diff --git a/gcc/testsuite/g++.dg/debug/debug6.C b/gcc/testsuite/g++.dg/debug/debug6.C
new file mode 100644
index 000000000000..64f121b00ad1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/debug/debug6.C
@@ -0,0 +1,7 @@
+// { dg-do compile }
+
+void foo()
+{
+  int i=1, x[i];
+}
+
diff --git a/gcc/testsuite/g++.dg/debug/debug7.C b/gcc/testsuite/g++.dg/debug/debug7.C
new file mode 100644
index 000000000000..78faa20ff030
--- /dev/null
+++ b/gcc/testsuite/g++.dg/debug/debug7.C
@@ -0,0 +1,18 @@
+// { dg-do compile }
+
+void f (int);
+
+int
+main() {
+
+  int a = 4;
+  int b = 5;
+  int (*x)[b] = new int[a][b];
+
+  x[2][1] = 7;
+
+  for (int i = 0; i < a; ++i)
+    for (int j = 0; j < b; ++j)
+      f (x[i][j]);
+  delete [] x;
+}