Merge branch 'master' of https://github.com/odin-lang/Odin

core/sync/sync.odin

@@ -1,8 +1,9 @@
 package sync
 
-foreign {
+import "core:intrinsics"
-	@(link_name="llvm.x86.sse2.pause")
+
-	yield_processor :: proc() ---
+cpu_relax :: inline proc() {
+	intrinsics.cpu_relax();
 }
 
 Ticket_Mutex :: struct {
@@ -18,7 +19,7 @@ ticket_mutex_init :: proc(m: ^Ticket_Mutex) {
 ticket_mutex_lock :: inline proc(m: ^Ticket_Mutex) {
 	ticket := atomic_add(&m.ticket, 1, .Relaxed);
 	for ticket != m.serving {
-		yield_processor();
+		intrinsics.cpu_relax();
 	}
 }
 

core/thread/thread_unix.odin

@@ -2,6 +2,7 @@
 package thread;
 
 import "core:runtime"
+import "core:intrinsics"
 import "core:sync"
 import "core:sys/unix"
 
@@ -40,15 +41,6 @@ Thread_Priority :: enum {
 // Creates a thread which will run the given procedure.
 // It then waits for `start` to be called.
 //
-// You may provide a slice of bytes to use as the stack for the new thread,
-// but if you do, you are expected to set up the guard pages yourself.
-//
-// The stack must also be aligned appropriately for the platform.
-// We require it's at least 16 bytes aligned to help robustness; other
-// platforms may require page-size alignment.
-// Note also that pthreads requires the stack is at least 6 OS pages in size:
-// 4 are required by pthreads, and two extra for guards pages that will be applied.
-//
 create :: proc(procedure: Thread_Proc, priority := Thread_Priority.Normal) -> ^Thread {
 	__linux_thread_entry_proc :: proc "c" (t: rawptr) -> rawptr {
 		t := (^Thread)(t);
@@ -134,7 +126,7 @@ join :: proc(t: ^Thread) {
 	if sync.atomic_swap(&t.already_joined, true, .Sequentially_Consistent) {
 		for {
 			if sync.atomic_load(&t.done, .Sequentially_Consistent) do return;
-			sync.yield_processor();
+			intrinsics.cpu_relax();
 		}
 	}