From bf3eba4084311696937f88b93b7a9ecbcc333f3b Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Fri, 25 Dec 2015 11:54:16 -0800
Subject: add indirect call testcase for wasm-backend

---
 test/wasm_backend/indirect_call.cpp | 50 +++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 test/wasm_backend/indirect_call.cpp

(limited to 'test/wasm_backend/indirect_call.cpp')

diff --git a/test/wasm_backend/indirect_call.cpp b/test/wasm_backend/indirect_call.cpp
new file mode 100644
index 000000000..75c459199
--- /dev/null
+++ b/test/wasm_backend/indirect_call.cpp
@@ -0,0 +1,50 @@
+#include <emscripten.h>
+
+void print(const char *prefix, int v) {
+  int *x = (int*)8; // XXX this order is wrong!
+  *x = (int)prefix;
+  int *y = (int*)16;
+  *y = v;
+  EM_ASM({
+    Module.print("print: " + Pointer_stringify(HEAP32[8>>2]) + " : " + HEAP32[16>>2]);
+  });
+}
+
+void something() {
+  print("something", 12);
+}
+
+void more() {
+  print("more", -1);
+}
+
+void other(int x) {
+  print("other", x + 40);
+}
+
+void yet(int x) {
+  print("yet", x + 99);
+}
+
+typedef void (*v)();
+typedef void (*vi)(int);
+
+int main(int argc, char **argv) {
+  print("argc", argc);
+  v f1[4] = { something, more, something, more };
+  print("addr of something", (int)&something);
+  print("addr of more", (int)&more);
+  for (int i = 0; i < 4 && i < argc*4; i++) {
+    print("i", i);
+    v curr = f1[i];
+    print("curr address to call", (int)curr);
+    curr();
+  }
+  vi f2[4] = { other, yet, other, yet };
+  for (int i = 0; i < 4 && i < argc*4; i++) {
+    vi curr = f2[i];
+    print("curr", (int)curr);
+    curr(i);
+  }
+}
+
-- 
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