Changeset 8e4aa05 for libcfa/src/bits/defs.hfa

Timestamp:

Mar 4, 2021, 7:40:25 PM (5 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

77d601f

Parents:

342af53 (diff), a5040fe (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

File:

• libcfa/src/bits/defs.hfa (modified) (2 diffs)

libcfa/src/bits/defs.hfa

@@ -5 +5 @@
 // file "LICENCE" distributed with Cforall.
 //
-// defs.hfa --
+// defs.hfa -- Commen macros, functions and typedefs
+// Most files depend on them and they are always useful to have.
+//
+//  *** Must not contain code specific to libcfathread ***
 //
 // Author           : Thierry Delisle
@@ -62 +65 @@
         #endif
 }
+
+// pause to prevent excess processor bus usage
+#if defined( __i386 ) || defined( __x86_64 )
+        #define Pause() __asm__ __volatile__ ( "pause" : : : )
+#elif defined( __ARM_ARCH )
+        #define Pause() __asm__ __volatile__ ( "YIELD" : : : )
+#else
+        #error unsupported architecture
+#endif
+
+#define CFA_IO_LAZY (1_l64u << 32_l64u)