Reorder linking and optimizations

Link intrinsic library before executing optimizations.
This makes sure that any optimization run by KLEE on the module
is executed for the intrinsic library as well.

Support .ll files as input for KLEE as well.

1 files changed, 33 insertions, 0 deletions

diff --git a/test/Runtime/FreeStanding/freestanding_only.c b/test/Runtime/FreeStanding/freestanding_only.c
new file mode 100644
index 00000000..7bdf6c97
--- /dev/null
+++ b/test/Runtime/FreeStanding/freestanding_only.c
@@ -0,0 +1,33 @@
+// RUN: %llvmgcc %s -emit-llvm -O0 -g -c  -D_FORTIFY_SOURCE=0 -o %t2.bc
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out %t2.bc 2> %t.log
+// RUN: FileCheck %s --input-file=%t.log
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --optimize --output-dir=%t.klee-out %t2.bc 2> %t.log
+// RUN: FileCheck %s --input-file=%t.log
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LENGTH 5
+int main(int argc, char **argv) {
+  char *src = (char *)malloc(LENGTH);
+  char *dst = (char *)malloc(LENGTH);
+
+  memset(src, 42, LENGTH);
+  // CHECK-NOT: calling external: memset
+
+  memcpy(dst, src, LENGTH);
+  // CHECK-NOT: calling external: memcpy
+
+  memmove(dst, src, LENGTH);
+  // CHECK-NOT: calling external: memmove
+
+  assert(memcmp(src, dst, LENGTH) == 0);
+  // CHECK-NOT: calling external: memcmp
+
+  assert(*src == 42);
+  assert(*src == *dst);
+  return 0;
+}