From 7d445f153d2937b96ccdde7c6acde3f0996564ed Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Thu, 5 Jun 2003 11:08:12 -0700
Subject: [PATCH] dwarf2out.c (loc_descriptor_from_tree): Return 0 for
 language-specific tree codes.

        * dwarf2out.c (loc_descriptor_from_tree): Return 0 for
        language-specific tree codes.

        * gcc.dg/debug/20030605-1.c: New.

From-SVN: r67505
---
 gcc/ChangeLog                           | 5 +++++
 gcc/dwarf2out.c                         | 8 ++++++++
 gcc/testsuite/ChangeLog                 | 4 ++++
 gcc/testsuite/gcc.dg/debug/20030605-1.c | 7 +++++++
 4 files changed, 24 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/debug/20030605-1.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index be404bf..a332e9cb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-05-06  Richard Henderson  <rth@redhat.com>
+
+	* dwarf2out.c (loc_descriptor_from_tree): Return 0 for 
+	language-specific tree codes.
+
 2003-06-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	PR middle-end/9986
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index e649329..dd0ee35 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -9033,6 +9033,14 @@ loc_descriptor_from_tree (loc, addressp)
       break;
 
     default:
+      /* Leave front-end specific codes as simply unknown.  This comes
+	 up, for instance, with the C STMT_EXPR.  */
+      if ((unsigned int) TREE_CODE (loc)
+          >= (unsigned int) LAST_AND_UNUSED_TREE_CODE)
+	return 0;
+
+      /* Otherwise this is a generic code; we should just lists all of
+	 these explicitly.  Aborting means we forgot one.  */
       abort ();
     }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9781d57..ca874aa 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2003-06-05  Richard Henderson  <rth@redhat.com>
+
+	* gcc.dg/debug/20030605-1.c: New.
+
 2003-06-04  Mark Mitchell  <mark@codesourcery.com>
 
 	* README.QMTEST: Update.
diff --git a/gcc/testsuite/gcc.dg/debug/20030605-1.c b/gcc/testsuite/gcc.dg/debug/20030605-1.c
new file mode 100644
index 0000000..548faaf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/20030605-1.c
@@ -0,0 +1,7 @@
+/* Verify we don't ICE on statement-expressions.  */
+/* { dg-do compile } */
+
+void foo(void)
+{
+  char buf[({ 4; })];
+}
-- 
2.7.4