rts: Eliminate platform-dependent castingwip/alpine-i386

Previously serialiseTaskId had some superfluous platform-dependent logic
to determine whether or not TaskId OsThreadId is an integer. However,
this is unnecessary; we now just unconditionally cast through uintptr_t.

1 files changed, 2 insertions, 8 deletions

diff --git a/rts/Task.h b/rts/Task.h
index fd7b68aecf..929601edb3 100644
--- a/rts/Task.h
+++ b/rts/Task.h
@@ -318,14 +318,8 @@ typedef StgWord64 TaskId;
 //
 #if defined(THREADED_RTS)
 INLINE_HEADER TaskId serialiseTaskId (OSThreadId taskID) {
-#if defined(freebsd_HOST_OS) || defined(darwin_HOST_OS)
-    // Here OSThreadId is a pthread_t and pthread_t is a pointer, but within
-    // the process we can still use that pointer value as a unique id.
-    return (TaskId) (size_t) taskID;
-#else
-    // On Windows, Linux and others it's an integral type to start with.
-    return (TaskId) taskID;
-#endif
+    // N.B. OSThreadId may be a pointer, therefore we first cast to uintptr_t
+    return (TaskId) (uintptr_t) taskID;
 }
 #endif