diff --git a/src/compile.cpp b/src/compile.cpp
index 4888778e7b..93f5ca543d 100644
--- a/src/compile.cpp
+++ b/src/compile.cpp
@@ -785,6 +785,10 @@ class Context {
     {
       if (size == 8) {
         switch(op) {
+        case Absolute:
+          assert(t, resultSize == 8);
+          return local::getThunk(t, absoluteLongThunk);
+
         case FloatNegate:
           assert(t, resultSize == 8);
           return local::getThunk(t, negateDoubleThunk);
@@ -819,12 +823,16 @@ class Context {
         assert(t, size == 4);
 
         switch(op) {
+        case Absolute:
+          assert(t, resultSize == 4);
+          return local::getThunk(t, absoluteIntThunk);
+
         case FloatNegate:
-          assert(t, size == 4);
+          assert(t, resultSize == 4);
           return local::getThunk(t, negateFloatThunk);
 
         case FloatAbsolute:
-          assert(t, size == 4);
+          assert(t, resultSize == 4);
           return local::getThunk(t, absoluteFloatThunk);
 
         case Float2Float:
@@ -2160,6 +2168,18 @@ absoluteFloat(uint32_t a)
   return floatToBits(fabsf(bitsToFloat(a)));
 }
 
+int64_t
+absoluteLong(int64_t a)
+{
+  return a > 0 ? a : -a;
+}
+
+int64_t
+absoluteInt(int32_t a)
+{
+  return a > 0 ? a : -a;
+}
+
 int64_t
 divideLong(int64_t b, int64_t a)
 {
diff --git a/src/powerpc.cpp b/src/powerpc.cpp
index 63ee6da3b4..9cec9a1cdd 100644
--- a/src/powerpc.cpp
+++ b/src/powerpc.cpp
@@ -2065,6 +2065,9 @@ class MyArchitecture: public Assembler::Architecture {
       *aTypeMask = (1 << RegisterOperand);
       break;
 
+    case Absolute:
+    case FloatAbsolute:
+    case FloatSquareRoot:
     case FloatNegate:
     case Float2Float:
     case Float2Int:
@@ -2096,9 +2099,9 @@ class MyArchitecture: public Assembler::Architecture {
   }
 
   virtual void planMove
-  (unsigned size, uint8_t* srcTypeMask, uint64_t* srcRegisterMask,
+  (unsigned, uint8_t* srcTypeMask, uint64_t* srcRegisterMask,
    uint8_t* tmpTypeMask, uint64_t* tmpRegisterMask,
-   uint8_t dstTypeMask, uint64_t dstRegisterMask)
+   uint8_t dstTypeMask, uint64_t)
   {
     *srcTypeMask = ~0;
     *srcRegisterMask = ~static_cast<uint64_t>(0);
diff --git a/src/powerpc.h b/src/powerpc.h
index 1ef1437e0f..9a55c13266 100644
--- a/src/powerpc.h
+++ b/src/powerpc.h
@@ -122,7 +122,7 @@ atomicCompareAndSwap32(uint32_t* p, uint32_t old, uint32_t new_)
 inline bool
 atomicCompareAndSwap(uintptr_t* p, uintptr_t old, uintptr_t new_)
 {
-  return atomicCompareAndSwap32(p, old, new_);
+  return atomicCompareAndSwap32(reinterpret_cast<uint32_t*>(p), old, new_);
 }
 #endif // USE_ATOMIC_OPERATIONS
 
diff --git a/src/thunks.cpp b/src/thunks.cpp
index bab06da664..f55c0018a9 100644
--- a/src/thunks.cpp
+++ b/src/thunks.cpp
@@ -22,6 +22,8 @@ THUNK(divideFloat)
 THUNK(moduloFloat)
 THUNK(negateFloat)
 THUNK(absoluteFloat)
+THUNK(absoluteLong)
+THUNK(absoluteInt)
 THUNK(divideLong)
 THUNK(divideInt)
 THUNK(moduloLong)