1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr45830.c b/gcc/testsuite/gcc.target/i386/pr45830.c
new file mode 100644
index 000000000..a74d43454
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr45830.c
@@ -0,0 +1,31 @@
+/* PR target/45830 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-switchconv-all -mtune=generic" } */
+
+int
+foo (int *a)
+{
+  switch (*a)
+    {
+    case 0:
+    case 3:
+    case 1:
+    case 2:
+    case 4:
+    case 23:
+    case 26:
+    case 19:
+    case 5:
+    case 21:
+    case 20:
+    case 22:
+    case 27:
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+/* { dg-final { scan-tree-dump "Expanding as bit test is preferable" "switchconv" } } */
+/* { dg-final { scan-assembler-not "CSWTCH" } } */
+/* { dg-final { cleanup-tree-dump "switchconv" } } */