Work around an apparent GCC miscompilation by specializing different,
this fixes a regression on some compilers from r68147.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68356 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Support/PointerLikeTypeTraits.h b/include/llvm/Support/PointerLikeTypeTraits.h
index 226dacf..c5f79cc 100644
--- a/include/llvm/Support/PointerLikeTypeTraits.h
+++ b/include/llvm/Support/PointerLikeTypeTraits.h
@@ -58,20 +58,6 @@
enum { NumLowBitsAvailable = 3 };
};
-// Pointers to pointers are only 4-byte aligned on 32-bit systems.
-template<typename T>
-class PointerLikeTypeTraits<T**> {
-public:
- static inline void *getAsVoidPointer(T** P) { return P; }
- static inline T **getFromVoidPointer(void *P) {
- return static_cast<T**>(P);
- }
- enum { NumLowBitsAvailable = 2 };
-};
-
-
-
-
// Provide PointerLikeTypeTraits for uintptr_t.
template<>
class PointerLikeTypeTraits<uintptr_t> {
diff --git a/include/llvm/Support/ValueHandle.h b/include/llvm/Support/ValueHandle.h
index 2771464..a668656 100644
--- a/include/llvm/Support/ValueHandle.h
+++ b/include/llvm/Support/ValueHandle.h
@@ -18,6 +18,18 @@
#include "llvm/Value.h"
namespace llvm {
+class ValueHandleBase;
+
+// ValueHandleBase** is only 4-byte aligned.
+template<>
+class PointerLikeTypeTraits<ValueHandleBase**> {
+public:
+ static inline void *getAsVoidPointer(ValueHandleBase** P) { return P; }
+ static inline ValueHandleBase **getFromVoidPointer(void *P) {
+ return static_cast<ValueHandleBase**>(P);
+ }
+ enum { NumLowBitsAvailable = 2 };
+};
/// ValueHandleBase - This is the common base class of value handles.
/// ValueHandle's are smart pointers to Value's that have special behavior when
diff --git a/include/llvm/Use.h b/include/llvm/Use.h
index 32cdd1b..53df699 100644
--- a/include/llvm/Use.h
+++ b/include/llvm/Use.h
@@ -29,6 +29,17 @@
/// Tag - generic tag type for (at least 32 bit) pointers
enum Tag { noTag, tagOne, tagTwo, tagThree };
+// Use** is only 4-byte aligned.
+template<>
+class PointerLikeTypeTraits<Use**> {
+public:
+ static inline void *getAsVoidPointer(Use** P) { return P; }
+ static inline Use **getFromVoidPointer(void *P) {
+ return static_cast<Use**>(P);
+ }
+ enum { NumLowBitsAvailable = 2 };
+};
+
//===----------------------------------------------------------------------===//
// Use Class
//===----------------------------------------------------------------------===//