1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/981006-1.c b/gcc/testsuite/gcc.c-torture/compile/981006-1.c
new file mode 100644
index 000000000..d77c115f2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/981006-1.c
@@ -0,0 +1,53 @@
+/* Test that tablejump insns are correctly handled.  If the compiler
+   loses track of the jump targets, it will report that x and y can be
+   used uninitialized.
+
+   This is broken in egcs 1998/10/06 for mips in pic mode.  */
+/* { dg-do assemble } */
+/* For MIPS at least, pic is needed to trigger the problem. */
+/* { dg-options "-w -Wuninitialized -Werror -fpic" } */
+/* { dg-options "-w -Wuninitialized -Werror" { target { { rs6000-*-aix* powerpc*-*-aix* arm*-*-* fr30-*-* sh-*-hms h8300*-*-* cris-*-elf* mmix-*-* } || { ! fpic } } } } */
+
+int foo (int a, int b)
+{
+  __label__ z;
+  int x; /* { dg-bogus "warning: `.' might be used uninitialized in this function" } */
+  int y; /* { dg-bogus "warning: `.' might be used uninitialized in this function" } */
+  static void *p;
+
+  switch (a) {
+  case 2:
+    x = 4;
+    break;
+  case 4:
+    x = 6;
+    break;
+  case 8: case 10: case 13: case 11: case 17: case 19:
+    x = 7;
+    break;
+  default:
+    x = -1;
+    break;
+  }
+  switch (b) {
+  case 2:
+    y = 4;
+    break;
+  case 4:
+    y = 6;
+    break;
+  case 8: case 10: case 13: case 11: case 17: case 19:
+    y = 7;
+    break;
+  default:
+    y = -1;
+    break;
+  }
+ z:
+  p = &&z;
+  return x * y;
+}
+int main (int argc, char *argv[])
+{
+  return 1 == foo (argc, argc + 1);
+}