Revert my last series of commits related to Timer and 64-bit atomics. Not all the targets
we care about are capable of supporting it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73993 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Atomic.cpp b/lib/System/Atomic.cpp
index fda2708..6e751a3 100644
--- a/lib/System/Atomic.cpp
+++ b/lib/System/Atomic.cpp
@@ -35,11 +35,11 @@
#endif
}
-uint32_t sys::CompareAndSwap32(volatile uint32_t* ptr,
- uint32_t new_value,
- uint32_t old_value) {
+sys::cas_flag sys::CompareAndSwap(volatile sys::cas_flag* ptr,
+ sys::cas_flag new_value,
+ sys::cas_flag old_value) {
#if LLVM_MULTITHREADED==0
- uint32_t result = *ptr;
+ sys::cas_flag result = *ptr;
if (result == old_value)
*ptr = new_value;
return result;
@@ -52,7 +52,7 @@
#endif
}
-int32_t sys::AtomicIncrement32(volatile int32_t* ptr) {
+sys::cas_flag sys::AtomicIncrement(volatile sys::cas_flag* ptr) {
#if LLVM_MULTITHREADED==0
++(*ptr);
return *ptr;
@@ -65,7 +65,7 @@
#endif
}
-int32_t sys::AtomicDecrement32(volatile int32_t* ptr) {
+sys::cas_flag sys::AtomicDecrement(volatile sys::cas_flag* ptr) {
#if LLVM_MULTITHREADED==0
--(*ptr);
return *ptr;
@@ -78,7 +78,7 @@
#endif
}
-int32_t sys::AtomicAdd32(volatile int32_t* ptr, int32_t val) {
+sys::cas_flag sys::AtomicAdd(volatile sys::cas_flag* ptr, sys::cas_flag val) {
#if LLVM_MULTITHREADED==0
*ptr += val;
return *ptr;
@@ -91,16 +91,4 @@
#endif
}
-int64_t sys::AtomicAdd64(volatile int64_t* ptr, int64_t val) {
-#if LLVM_MULTITHREADED==0
- *ptr += val;
- return *ptr;
-#elif defined(__GNUC__)
- return __sync_add_and_fetch(ptr, val);
-#elif defined(_MSC_VER)
- return InterlockedAdd64(ptr, val);
-#else
-# error No atomic add implementation for your platform!
-#endif
-}