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authorRoger Sayle <roger@eyesopen.com>2003-12-20 20:17:53 +0000
committerRoger Sayle <sayle@gcc.gnu.org>2003-12-20 20:17:53 +0000
commit3b24df36c08c710b71a76b683f4d3b972c162e9e (patch)
treea539de89476f93bf0bf86352a380a07e2fdd149b
parentc703c3900e6ee72020763aea4bb0ccc3f40795c8 (diff)
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re PR rtl-optimization/13031 (ICE (unrecognizable insn) when building gnome-libs-1.4.2)
2003-12-20 Roger Sayle <roger@eyesopen.com> PR optimization/13031 * gcc.c-torture/compile/20031220-1.c: New test case. From-SVN: r74892
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.c-torture/compile/20031220-1.c21
2 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c62be7e..25db32b 100644
--- 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
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);
+}
+