[project @ 2002-06-03 13:08:37 by matthewc]

[ghc-hetmet.git] / ghc / includes / TailCalls.h

diff --git a/ghc/includes/TailCalls.h b/ghc/includes/TailCalls.h
index 2dbd99c..2d3f36c 100644 (file)
--- a/ghc/includes/TailCalls.h
+++ b/ghc/includes/TailCalls.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: TailCalls.h,v 1.9 2002/05/28 09:22:08 wolfgang Exp $
+ * $Id: TailCalls.h,v 1.10 2002/06/03 13:08:41 matthewc Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -186,6 +186,21 @@ but uses $$dyncall if necessary to cope, just in case you aren't.
 #endif /* powerpc_TARGET_ARCH */
 
 /* -----------------------------------------------------------------------------
+   Tail calling on IA64
+   -------------------------------------------------------------------------- */
+
+#ifdef ia64_TARGET_ARCH
+
+/* The compiler can more intelligently decide how to do this.  We therefore
+ * implement it as a call and optimise to a jump at mangle time. */
+#define JMP_(cont)     ((F_) (cont))(); __asm__ volatile ("--- TAILCALL ---");
+
+/* Don't emit calls to __DISCARD__ as this causes hassles */
+#define __DISCARD__()
+
+#endif
+
+/* -----------------------------------------------------------------------------
   FUNBEGIN and FUNEND.
 
   These are markers indicating the start and end of Real Code in a