[llgo] Roll gofrontend forward

Switch gofrontend to using go.googlesource.com, and
update to 81eb6a3f425b2158c67ee32c0cc973a72ce9d6be.

There are various changes required to update to the
go 1.5 runtime:

typemap.go is changed to accommodate the change in representation for equal/hash algorithms, and the removal of the zero value/type.
CMakeLists.txt is updated to add the build tree to the package search path, so internal packages, which are not installed, are found.
various files changes due to removal of __go_new_nopointers; the same change as in D11863, but with NoUnwindAttribute added to the added runtime functions which are called with "callOnly".
minor cleanups in ssa.go while investigating issues with unwinding/panic handling.

Differential Revisision: http://reviews.llvm.org/D15188

llvm-svn: 263536

1 files changed, 2 insertions, 2 deletions

diff --git a/llgo/third_party/gofrontend/libgo/runtime/go-interface-val-compare.c b/llgo/third_party/gofrontend/libgo/runtime/go-interface-val-compare.c
index e2dae6a1892..36b6efdc9f1 100644
--- a/llgo/third_party/gofrontend/libgo/runtime/go-interface-val-compare.c
+++ b/llgo/third_party/gofrontend/libgo/runtime/go-interface-val-compare.c
@@ -26,8 +26,8 @@ __go_interface_value_compare (
     return 1;
   if (__go_is_pointer_type (left_descriptor))
     return left.__object == val ? 0 : 1;
-  if (!left_descriptor->__equalfn (left.__object, val,
-				   left_descriptor->__size))
+  if (!__go_call_equalfn (left_descriptor->__equalfn, left.__object, val,
+			  left_descriptor->__size))
     return 1;
   return 0;
 }