2003-12-20 Roger Sayle <roger@eyesopen.com>

	PR optimization/13031
	* gcc.c-torture/compile/20031220-1.c: New test case.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74892 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c62be7e..25db32b 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2003-12-20  Roger Sayle  <roger@eyesopen.com>
+
+       PR optimization/13031
+       * gcc.c-torture/compile/20031220-1.c: New test case.
+
 2003-12-20  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
        * gcc.dg/cast-function-1.c: New test.

diff --git a/gcc/testsuite/gcc.c-torture/compile/20031220-1.c b/gcc/testsuite/gcc.c-torture/compile/20031220-1.c
new file mode 100644 (file)
index 0000000..026a268
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20031220-1.c
@@ -0,0 +1,21 @@
+/* PR optimization/13031  */
+/* The following code used to ICE on alphaev67-*-* at -O2 with an
+   unrecognizable instruction, caused by local register allocation
+   substituting a register for a constant in a conditional branch.  */
+
+void emit(int, int);
+int f(void);
+static int signals[5];
+
+static inline void select(int sel, void *klass)
+{
+  emit(klass ? 0 : f(), signals[sel ? 0 : 1]);
+}
+
+void all(void *gil, void *l, void *icon)
+{
+  while (l)
+    if (icon)
+      select(0, gil);
+}
+