Use fast unwinder for PowerPC

2015-07-29  Markus Trippelsdorf  <markus@trippelsdorf.de>

	PR sanitizer/63927
	* sanitizer_common/sanitizer_stacktrace.h: Use fast unwinder
	for PowerPC.

From-SVN: r226338

libsanitizer/ChangeLog

+2015-07-29  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+	PR sanitizer/63927
+	* sanitizer_common/sanitizer_stacktrace.h: Use fast unwinder
+	for PowerPC.
+
 2015-07-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
 	PR sanitizer/63927

libsanitizer/sanitizer_common/sanitizer_stacktrace.h

@@ -17,8 +17,7 @@ namespace __sanitizer {
 
 static const uptr kStackTraceMax = 256;
 
-#if SANITIZER_LINUX && (defined(__aarch64__) || defined(__powerpc__) || \
-                        defined(__powerpc64__) || defined(__sparc__) || \
+#if SANITIZER_LINUX && (defined(__aarch64__) || defined(__sparc__) || \
                         defined(__mips__))
 # define SANITIZER_CAN_FAST_UNWIND 0
 #elif SANITIZER_WINDOWS