diff --git a/src/common.h b/src/common.h
index 7e1f94e93b..10690c6046 100644
--- a/src/common.h
+++ b/src/common.h
@@ -31,14 +31,18 @@
 
 #if (defined __i386__) || (defined __POWERPC__) || (defined __arm__)
 #  define LD "ld"
-#  define LLD "lld"
-#ifdef __APPLE__
-#  define ULD "lu"
-#  define LX "lx"
-#else
-#  define LX "x"
-#  define ULD "u"
-#endif
+#  ifdef __MINGW32__
+#    define LLD "I64d"
+#  else
+#    define LLD "lld"
+#  endif
+#  ifdef __APPLE__
+#    define ULD "lu"
+#    define LX "lx"
+#  else
+#    define LX "x"
+#    define ULD "u"
+#  endif
 #elif defined __x86_64__
 #  ifdef __MINGW32__
 #    define LD "I64d"
diff --git a/src/compile.cpp b/src/compile.cpp
index ff6f15a5a6..add06d4845 100644
--- a/src/compile.cpp
+++ b/src/compile.cpp
@@ -189,8 +189,10 @@ compareIpToMethodBounds(Thread* t, intptr_t ip, object method)
   intptr_t start = methodCompiled(t, method);
 
   if (DebugMethodTree) {
-    fprintf(stderr, "find 0x%"LX" in (0x%"LX",0x%"LX")\n", ip, start,
-            start + compiledSize(start));
+    fprintf(stderr, "find %p in (%p,%p)\n",
+            reinterpret_cast<void*>(ip),
+            reinterpret_cast<void*>(start),
+            reinterpret_cast<void*>(start + compiledSize(start)));
   }
 
   if (ip < start) {
diff --git a/src/x86.cpp b/src/x86.cpp
index 59959a2ce9..1854a01427 100644
--- a/src/x86.cpp
+++ b/src/x86.cpp
@@ -895,7 +895,7 @@ moveRR(Context* c, unsigned aSize, Assembler::Register* a,
     case 4:
       if (bSize == 8) {
       	if (BytesPerWord == 8) {
-          alwaysRex(c, aSize, b, a);
+          alwaysRex(c, bSize, b, a);
           opcode(c, 0x63);
           modrm(c, 0xc0, a, b);
       	} else {
diff --git a/test/Longs.java b/test/Longs.java
index daa6966677..51fad92969 100644
--- a/test/Longs.java
+++ b/test/Longs.java
@@ -35,7 +35,13 @@ public class Longs {
     return a - (a % b);
   }
 
+  private static int negativeOne() {
+    return -1;
+  }
+
   public static void main(String[] args) {
+    expect(((long) negativeOne()) == -1);
+
     { long foo = 25214903884L;
       int radix = 10;
       expect(foo > 0);
diff --git a/test/test.sh b/test/test.sh
index fd028e39f0..55b4ff54a6 100644
--- a/test/test.sh
+++ b/test/test.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 log=build/log.txt
 vg="nice valgrind --leak-check=full --num-callers=32 \
@@ -28,7 +28,7 @@ for test in ${tests}; do
       exit 1;;
   esac
 
-  if (( ${?} == 0 )); then
+  if [ "${?}" = "0" ]; then
     echo "success"
   else
     echo "fail"