[PATCH] Enable testing ASAN on AArch64

[Christophe Lyon]

Hi rengolin, kcc,

This patch is related to http://reviews.llvm.org/D7243, and enables testing ASAN on AArch64.

When both patches are applied, I can see 2 failures in the testsuite:
Asan-aarch64-inline-Test/AddressSanitizer.BuiltinLongJmpTest
Asan-aarch64-with-calls-Test/AddressSanitizer.BuiltinLongJmpTest

I have tried to debug them, and I am not wondering if these tests should be skipped as on ARM, PowerPC.
As a matter of fact, I have extracted a sample program which does run when compiled with GCC, but loops & crashes when compiled with clang: maybe __builtin_longjmp is broken on AArch64 in Clang/LLVM?

Thanks.

http://reviews.llvm.org/D7244

Files:
  cmake/config-ix.cmake

Index: cmake/config-ix.cmake
===================================================================
--- cmake/config-ix.cmake
+++ cmake/config-ix.cmake
@@ -173,7 +173,7 @@
 filter_available_targets(SANITIZER_COMMON_SUPPORTED_ARCH
   x86_64 i386 i686 powerpc64 powerpc64le arm aarch64 mips mips64 mipsel mips64el)
 filter_available_targets(ASAN_SUPPORTED_ARCH
-  x86_64 i386 i686 powerpc64 powerpc64le arm mips mipsel mips64 mips64el)
+  x86_64 i386 i686 powerpc64 powerpc64le arm aarch64 mips mipsel mips64 mips64el)
 filter_available_targets(DFSAN_SUPPORTED_ARCH x86_64 mips64 mips64el)
 filter_available_targets(LSAN_SUPPORTED_ARCH x86_64)
 # LSan common files should be available on all architectures supported

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