Executor: fix missing default case in switch instruction

1 files changed, 50 insertions, 0 deletions

diff --git a/test/regression/2019-08-02-missing-switch-default.ll b/test/regression/2019-08-02-missing-switch-default.ll
new file mode 100644
index 00000000..6adb8e19
--- /dev/null
+++ b/test/regression/2019-08-02-missing-switch-default.ll
@@ -0,0 +1,50 @@
+; REQUIRES: geq-llvm-3.8
+; RUN: rm -rf %t.klee-out
+; RUN: llvm-as -f %s -o %t.bc
+; RUN: %klee --switch-type=internal --output-dir=%t.klee-out %t.bc
+; RUN: FileCheck --input-file=%t.klee-out/info %s
+; CHECK: KLEE: done: completed paths = 3
+
+target triple = "x86_64-pc-linux-gnu"
+
+@.str = private unnamed_addr constant [5 x i8] c"cond\00", align 1
+
+define i32 @main() #0 {
+  %1 = alloca i32, align 4
+  %2 = alloca i32, align 4
+  %3 = alloca i32, align 4
+  store i32 0, i32* %1, align 4
+  %4 = bitcast i32* %2 to i8*
+  call void @klee_make_symbolic(i8* %4, i64 4, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i32 0, i32 0))
+  store i32 0, i32* %3, align 4
+  %5 = load i32, i32* %2, align 4
+  switch i32 %5, label %7 [
+    i32 1, label %6
+    i32 5, label %7
+  ]
+
+; <label>:6:
+  store i32 1, i32* %3, align 4
+  br label %8
+
+; <label>:7:
+  store i32 5, i32* %3, align 4
+  br label %8
+
+; <label>:8:
+  %9 = load i32, i32* %2, align 4
+  %10 = icmp eq i32 %9, 7
+  br i1 %10, label %11, label %12
+
+; <label>:11:
+  store i32 7, i32* %3, align 4
+  br label %12
+
+; <label>:12:
+  %13 = load i32, i32* %1, align 4
+  ret i32 %13
+}
+
+declare void @klee_make_symbolic(i8*, i64, i8*)
+
+attributes #0 = { noinline nounwind optnone uwtable }