[LSan] Enable LSan tests on PPC64 Linux.

[alekseyshl]

Summary

LSan is functional on PPC64 Linux now, let's enable all tests.

One test required ppc specific changes: use_registers.cc.

compiler-rt/trunk/cmake/config-ix.cmake

 set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
     ${MIPS32} ${MIPS64} ${PPC64} ${S390X})
 set(ALL_DFSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
 set(ALL_FUZZER_SUPPORTED_ARCH x86_64)
 
 if(APPLE)
   set(ALL_LSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${MIPS64} ${ARM64})
 else()
-  set(ALL_LSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${MIPS64} ${ARM64} ${ARM32})
+  set(ALL_LSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${MIPS64} ${ARM64} ${ARM32} ${PPC64})
 endif()
 set(ALL_MSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})
 set(ALL_PROFILE_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${PPC64}
     ${MIPS32} ${MIPS64} ${S390X})
 set(ALL_TSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})
 set(ALL_UBSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
     ${MIPS32} ${MIPS64} ${PPC64} ${S390X})
 set(ALL_SAFESTACK_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM64} ${MIPS32} ${MIPS64})

compiler-rt/trunk/test/lsan/TestCases/use_registers.cc

asm ( "move $16, %0"
       :
       : "r" (p)
       );
 #elif defined(__arm__)
   asm ( "mov r5, %0"
       :
       : "r" (p)
       );
+#elif defined(__powerpc__)
+  asm ( "mr 30, %0"
+      :
+      : "r" (p)
+      );
 #else
 #error "Test is not supported on this architecture."
 #endif
   print_address("Test alloc: ", 1, p);
   fflush(stderr);
   __sync_fetch_and_xor(sync, 1);
   while (true)
     sched_yield();

compiler-rt/trunk/test/lsan/lit.common.cfg

def build_invocation(compile_flags):
   return " " + " ".join([config.clang] + compile_flags) + " "
 
 config.substitutions.append( ("%clang ", build_invocation(clang_cflags)) )
 config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) )
 config.substitutions.append( ("%clang_lsan ", build_invocation(clang_lsan_cflags)) )
 config.substitutions.append( ("%clangxx_lsan ", build_invocation(clang_lsan_cxxflags)) )
 
 # LeakSanitizer tests are currently supported on x86-64 Linux, PowerPC64 Linux, arm Linux, mips64 Linux, and x86_64 Darwin.
-supported_linux = config.host_os is 'Linux' and config.host_arch in ['x86_64', 'ppc64', 'mips64', 'arm', 'armhf', 'armv7l']
+supported_linux = config.host_os is 'Linux' and config.host_arch in ['x86_64', 'ppc64', 'ppc64le', 'mips64', 'arm', 'armhf', 'armv7l']
 supported_darwin = config.host_os is 'Darwin' and config.target_arch is 'x86_64'
 if not (supported_linux or supported_darwin):
   config.unsupported = True
 
 # Don't support Thumb due to broken fast unwinder
 if re.search('mthumb', config.target_cflags) is not None:
   config.unsupported = True
 
 config.suffixes = ['.c', '.cc', '.cpp', '.mm']