Do not XFAIL test/tools/llvm-cov tests on powerpc64le

All tests in test/tools/llvm-cov fail on big-endian targets and are
supposed to be XFAILed there.  However, including "powerpc64" in the
XFAIL line is now incorrect, since that matches both powerpc64- and
powerpc64le- targets, and the tests pass on the latter.

Update the XFAIL lines to use powerpc64- instead (like mips64-).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211172 91177308-0d34-0410-b5e6-96231b3b80d8

test/tools/llvm-cov/copy_block_helper.m

@@ -29,4 +29,4 @@ void test(id x) { // GCOV: -:    [[@LINE]]:void test
 int main(int argc, const char *argv[]) { test(0); }
 
 // llvm-cov doesn't work on big endian yet
-// XFAIL: powerpc64, s390x, mips-, mips64-, sparc
+// XFAIL: powerpc64-, s390x, mips-, mips64-, sparc

test/tools/llvm-cov/llvm-cov.test

@@ -110,4 +110,4 @@ RUN: not llvm-cov test.c -gcda=test_file_checksum_fail.gcda
 # Bad function checksum on gcda
 RUN: not llvm-cov test.c -gcda=test_func_checksum_fail.gcda
 
-XFAIL: powerpc64, s390x, mips-, mips64-, sparc
+XFAIL: powerpc64-, s390x, mips-, mips64-, sparc

test/tools/llvm-cov/range_based_for.cpp

@@ -26,4 +26,4 @@ int main(int argc, const char *argv[]) { // GCOV: 1:    [[@LINE]]:int main(
 }                                        // GCOV: -:    [[@LINE]]:}
 
 // llvm-cov doesn't work on big endian yet
-// XFAIL: powerpc64, s390x, mips-, mips64-, sparc
+// XFAIL: powerpc64-, s390x, mips-, mips64-, sparc