libgo patch committed: mark unused parameters as unused

[Ian Lance Taylor]

This patch to libgo marks the unused parameters in the non-x86 code of
the new file aeshash.c as unused, to avoid build warnings.
Bootstrapped on x86_64-pc-linux-gnu, test compiled using an ARM
cross-compiler.  Committed to mainline.

Ian

Index: gcc/go/gofrontend/MERGE
===================================================================
--- gcc/go/gofrontend/MERGE     (revision 243445)
+++ gcc/go/gofrontend/MERGE     (working copy)
@@ -1,4 +1,4 @@
-78e3527fcaf4ffd33b22e39a56e5d076844302be
+ac59bb383e1b446c68465af793722dd0e84abefb
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
Index: libgo/runtime/aeshash.c
===================================================================
--- libgo/runtime/aeshash.c     (revision 243445)
+++ libgo/runtime/aeshash.c     (working copy)
@@ -575,7 +575,10 @@ uintptr aeshashbody(void* p, uintptr see
 
 #else // !defined(__i386__) && !defined(__x86_64__)
 
-uintptr aeshashbody(void* p, uintptr seed, uintptr size, Slice aeskeysched) {
+uintptr aeshashbody(void* p __attribute__((unused)),
+                   uintptr seed __attribute__((unused)),
+                   uintptr size __attribute__((unused)),
+                   Slice aeskeysched __attribute__((unused))) {
        // We should never get here on a non-x86 system.
        runtime_throw("impossible call to aeshashbody");
 }