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 31f6974ad2405a0b3dfae843980d21471acc916d..7d27747c31019cf1b1c8a5aec47287fbc3e5e647 100644 (file)
--- 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 ce689291eb6a0972dbe14966ec81254a72a78214..80d08c73be3c898069df44b01280898a577cde93 100644 (file)
--- 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 036f0dfc6e3d73739d2a9e20616b6bc257d979cf..27501e4bc14e1e88a0ad164e801779e04b047053 100644 (file)
--- 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 (file)
index 0000000..03dae35
--- /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" } */
+}