Skip simulate-thread tests on all alpha targets

	* lib/gcc-simulate-thread.exp (simulate-thread): Skip on
	alpha*-*-*.

From-SVN: r181441

gcc/testsuite/ChangeLog

+2011-11-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* lib/gcc-simulate-thread.exp (simulate-thread): Skip on
+	alpha*-*-*.
+
 2011-10-16  Uros Bizjak  <ubizjak@gmail.com>
 
 	* gcc.dg/tm/memopt-6.c: Cleanup tmedge tree dump.

gcc/testsuite/lib/gcc-simulate-thread.exp

@@ -23,9 +23,9 @@
 
 proc simulate-thread { args } {
 
-    # ??? Exit immediately if this is alpha*-*-linux* target, single-stepping
+    # ??? Exit immediately if this is alpha*-*-* target, single-stepping
     # executable between ldl_l and stl_c insns in gdb breaks LL/SC chaining.
-    if { [istarget alpha*-*-linux*] } { return }
+    if { [istarget alpha*-*-*] } { return }
     
     # GNU gdb 6.3 on powerpc-darwin also  on these (and expect does not appear
     # to be able to terminate them).