This libgo patch by James Clarke fixes GOARCH_CACHELINESIZE on ia64.
Bootstrapped on x86_64-pc-linux-gnu.  Committed to mainline.

Ian
Index: gcc/go/gofrontend/MERGE
===================================================================
--- gcc/go/gofrontend/MERGE     (revision 256262)
+++ gcc/go/gofrontend/MERGE     (working copy)
@@ -1,4 +1,4 @@
-9b9bece388d1bacdc9d1d0024e722ffe449d221d
+1319f36ccc65cf802b8e17ddd3d2da3ca6d82f4c
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
Index: libgo/configure.ac
===================================================================
--- libgo/configure.ac  (revision 256262)
+++ libgo/configure.ac  (working copy)
@@ -264,7 +264,7 @@ GOARCH_HUGEPAGESIZE="1 << 21"
   ia64-*-*)
     GOARCH=ia64
     GOARCH_FAMILY=IA64
-    GOARCH_CACHELINESIZE=16384
+    GOARCH_CACHELINESIZE=128
     GOARCH_PHYSPAGESIZE=65536
     ;;
   m68k*-*-*)

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