[libFuzzer] [NFC] XFAIL a few tests on iOS

test/fuzzer/afl-driver-extra-stats.test

+XFAIL: ios
 RUN: %no_fuzzer_cpp_compiler %S/AFLDriverTest.cpp %libfuzzer_src/afl/afl_driver.cpp -o %t-AFLDriverTest
 
 ; Test that not specifying an extra stats file isn't broken.
 RUN: unset AFL_DRIVER_EXTRA_STATS_FILENAME
 RUN: %run %t-AFLDriverTest
 
 ; Test that specifying an invalid extra stats file causes a crash.
 RUN: ASAN_OPTIONS= AFL_DRIVER_EXTRA_STATS_FILENAME=%T not --crash %t-AFLDriverTest

test/fuzzer/afl-driver-stderr.test

+XFAIL: ios
 UNSUPPORTED: freebsd
 RUN: %no_fuzzer_cpp_compiler %S/AFLDriverTest.cpp %libfuzzer_src/afl/afl_driver.cpp -o %t-AFLDriverTest
 
 ; Test that not specifying a stderr file isn't broken.
 RUN: unset AFL_DRIVER_STDERR_DUPLICATE_FILENAME
 RUN: %run %t-AFLDriverTest
 
 ; Test that specifying an invalid file causes a crash.
 RUN: ASAN_OPTIONS= AFL_DRIVER_STDERR_DUPLICATE_FILENAME="%T" not --crash %run %t-AFLDriverTest
 
 ; Test that a file is created when specified as the duplicate stderr.
 RUN: AFL_DRIVER_STDERR_DUPLICATE_FILENAME=%t %run %t-AFLDriverTest
 RUN: stat %t

test/fuzzer/counters.test

+XFAIL: ios
 RUN: %cpp_compiler %S/CounterTest.cpp -o %t-CounterTest
 RUN: not %run %t-CounterTest  -max_len=6 -seed=1 -timeout=15 2>&1 | FileCheck %s --check-prefix=COUNTERS
 
 COUNTERS: INITED {{.*}} {{bits:|ft:}}
 COUNTERS: NEW {{.*}} {{bits:|ft:}} {{[1-9]*}}
 COUNTERS: NEW {{.*}} {{bits:|ft:}} {{[1-9]*}}
 COUNTERS: BINGO

test/fuzzer/fuzzer-printcovpcs.test

+XFAIL: ios
 RUN: %cpp_compiler %S/SimpleTest.cpp -o %t-SimpleTest
 RUN: not %run %t-SimpleTest -print_pcs=1 -seed=1 2>&1 | FileCheck %s --check-prefix=PCS
 PCS-NOT: NEW_PC
 PCS:INITED
 PCS:NEW_PC: {{0x[a-f0-9]+}}
 PCS:NEW_PC: {{0x[a-f0-9]+}}
 PCS:NEW
 PCS:BINGO
 

test/fuzzer/merge-posix.test

+XFAIL: ios
 RUN: %cpp_compiler %S/FullCoverageSetTest.cpp -o %t-FullCoverageSetTest
 
 RUN: rm -rf  %tmp/T1 %tmp/T2
 RUN: mkdir -p %tmp/T1 %tmp/T2
 
 RUN: echo F..... > %tmp/T1/1
 RUN: echo .U.... > %tmp/T1/2
 RUN: echo ..Z... > %tmp/T1/3

test/fuzzer/merge-sigusr.test

 # Check that libFuzzer honors SIGUSR1/SIGUSR2
+XFAIL: ios
 RUN: rm -rf %t
 RUN: mkdir -p %t
 RUN: %cpp_compiler %S/SleepOneSecondTest.cpp -o %t/LFSIGUSR
 
 RUN: mkdir -p %t/C1 %t/C2
 RUN: echo a > %t/C2/a
 RUN: echo b > %t/C2/b
 RUN: echo c > %t/C2/c

test/fuzzer/merge.test

+XFAIL: ios
 CHECK: BINGO
 
 RUN: %cpp_compiler %S/FullCoverageSetTest.cpp -o %t-FullCoverageSetTest
 
 RUN: rm -rf %t/T0 %t/T1 %t/T2
 RUN: mkdir -p %t/T0 %t/T1 %t/T2
 RUN: echo F..... > %t/T0/1
 RUN: echo .U.... > %t/T0/2

test/fuzzer/value-profile-div.test

+XFAIL: ios
 CHECK: AddressSanitizer: {{FPE|int-divide-by-zero}}
 RUN: %cpp_compiler %S/DivTest.cpp -fsanitize-coverage=trace-div -o %t-DivTest
 RUN: not %run %t-DivTest -seed=1 -use_value_profile=1 -runs=10000000 2>&1 | FileCheck %s