From: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
Date: Thu, 11 May 2006 14:58:54 +0000 (+0000)
Subject: re PR middle-end/27488 (ICE in tree_expr_nonnegative_p)
X-Git-Tag: releases/gcc-4.2.0~2956
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=81e61fb4e6c11f360ee7cd5193fabac638ca0365;p=thirdparty%2Fgcc.git

re PR middle-end/27488 (ICE in tree_expr_nonnegative_p)

	PR middle-end/27488
	* fold-const.c (tree_expr_nonnegative_p): Return early on invalid
	expression.

	* gcc.dg/fold-nonneg-1.c: New test.

From-SVN: r113699
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 31f6974ad240..7d27747c3101 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR middle-end/27488
+	* fold-const.c (tree_expr_nonnegative_p): Return early on invalid
+	expression.
+
 2006-05-11  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/27529
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index ce689291eb6a..80d08c73be3c 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -11796,6 +11796,9 @@ multiple_of_p (tree type, tree top, tree bottom)
 int
 tree_expr_nonnegative_p (tree t)
 {
+  if (t == error_mark_node)
+    return 0;
+
   if (TYPE_UNSIGNED (TREE_TYPE (t)))
     return 1;
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 036f0dfc6e3d..27501e4bc14e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
+	PR middle-end/27488
+	* gcc.dg/fold-nonneg-1.c: New test.
+
 	PR c++/27547
 	* g++.dg/other/operator1.C: New test.
 
diff --git a/gcc/testsuite/gcc.dg/fold-nonneg-1.c b/gcc/testsuite/gcc.dg/fold-nonneg-1.c
new file mode 100644
index 000000000000..03dae358b54e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fold-nonneg-1.c
@@ -0,0 +1,10 @@
+/* PR middle-end/27488 */
+/* { dg-do compile } */
+
+extern double fabs(double x);
+extern double sinh(double x);
+
+void foo()
+{
+  fabs(sinh(0..));  /* { dg-error "decimal points" } */
+}