vendor/compiler-rt/compiler-rt-trunk-r301939

39 files changed, 265 insertions, 337 deletions

diff --git a/test/asan/CMakeLists.txt b/test/asan/CMakeLists.txt
index 4b4fdf19d18c..b8e365227780 100644
--- a/test/asan/CMakeLists.txt
+++ b/test/asan/CMakeLists.txt
@@ -22,7 +22,7 @@ endmacro()
 set(ASAN_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
 if(NOT COMPILER_RT_STANDALONE_BUILD)
   list(APPEND ASAN_TEST_DEPS asan)
-  if(WIN32 AND COMPILER_RT_HAS_LLD)
+  if(NOT APPLE AND COMPILER_RT_HAS_LLD)
     list(APPEND ASAN_TEST_DEPS
       lld
     )
@@ -41,6 +41,12 @@ foreach(arch ${ASAN_TEST_ARCH})
   else()
     set(ASAN_TEST_TARGET_ARCH ${arch})
   endif()
+
+  set(ASAN_TEST_IOS "0")
+  pythonize_bool(ASAN_TEST_IOS)
+  set(ASAN_TEST_IOSSIM "0")
+  pythonize_bool(ASAN_TEST_IOSSIM)
+
   string(TOLOWER "-${arch}-${OS_NAME}" ASAN_TEST_CONFIG_SUFFIX)
   get_bits_for_arch(${arch} ASAN_TEST_BITS)
   get_test_cc_for_arch(${arch} ASAN_TEST_TARGET_CC ASAN_TEST_TARGET_CFLAGS)
@@ -69,6 +75,49 @@ foreach(arch ${ASAN_TEST_ARCH})
   endif()
 endforeach()
 
+# iOS and iOS simulator test suites
+# These are not added into "check-all", in order to run these tests, you have to
+# manually call (from the build directory).  They also require that an extra env
+# variable to select which iOS device or simulator to use, e.g.:
+# $ SANITIZER_IOSSIM_TEST_DEVICE_IDENTIFIER=BBE44C1C-8AAA-4000-8D06-91C89ED58172
+# $ ./bin/llvm-lit ./projects/compiler-rt/test/asan/IOSSimI386Config
+if(APPLE)
+  set(ASAN_TEST_TARGET_CC ${COMPILER_RT_TEST_COMPILER})
+  set(ASAN_TEST_IOS "1")
+  pythonize_bool(ASAN_TEST_IOS)
+  set(ASAN_TEST_DYNAMIC True)
+
+  foreach(arch ${DARWIN_iossim_ARCHS})
+    set(ASAN_TEST_IOSSIM "1")
+    pythonize_bool(ASAN_TEST_IOSSIM)
+    set(ASAN_TEST_TARGET_ARCH ${arch})
+    set(ASAN_TEST_TARGET_CFLAGS "-arch ${arch} -isysroot ${DARWIN_iossim_SYSROOT} ${COMPILER_RT_TEST_COMPILER_CFLAGS}")
+    set(ASAN_TEST_CONFIG_SUFFIX "-${arch}-iossim")
+    get_bits_for_arch(${arch} ASAN_TEST_BITS)
+    string(TOUPPER ${arch} ARCH_UPPER_CASE)
+    set(CONFIG_NAME "IOSSim${ARCH_UPPER_CASE}Config")
+    configure_lit_site_cfg(
+      ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
+      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg
+      )
+  endforeach()
+
+  foreach (arch ${DARWIN_ios_ARCHS})
+    set(ASAN_TEST_IOSSIM "0")
+    pythonize_bool(ASAN_TEST_IOSSIM)
+    set(ASAN_TEST_TARGET_ARCH ${arch})
+    set(ASAN_TEST_TARGET_CFLAGS "-arch ${arch} -isysroot ${DARWIN_ios_SYSROOT} ${COMPILER_RT_TEST_COMPILER_CFLAGS}")
+    set(ASAN_TEST_CONFIG_SUFFIX "-${arch}-ios")
+    get_bits_for_arch(${arch} ASAN_TEST_BITS)
+    string(TOUPPER ${arch} ARCH_UPPER_CASE)
+    set(CONFIG_NAME "IOS${ARCH_UPPER_CASE}Config")
+    configure_lit_site_cfg(
+      ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
+      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg
+      )
+  endforeach()
+endif()
+
 # Add unit tests.
 if(COMPILER_RT_INCLUDE_TESTS)
   set(ASAN_TEST_DYNAMIC False)
diff --git a/test/asan/TestCases/Darwin/dead-strip.c b/test/asan/TestCases/Darwin/dead-strip.c
index f87a5e52b1cf..8165fcd08be7 100644
--- a/test/asan/TestCases/Darwin/dead-strip.c
+++ b/test/asan/TestCases/Darwin/dead-strip.c
@@ -6,6 +6,7 @@
 // runtime is able to register globals in the __DATA,__asan_globals section.
 
 // REQUIRES: osx-ld64-live_support
+// UNSUPPORTED: ios
 // RUN: %clang_asan -mmacosx-version-min=10.11 -Xlinker -dead_strip -o %t %s
 // RUN: llvm-nm -format=posix %t | FileCheck --check-prefix NM-CHECK %s
 // RUN: not %run %t 2>&1 | FileCheck --check-prefix ASAN-CHECK %s
diff --git a/test/asan/TestCases/Darwin/dump_registers.cc b/test/asan/TestCases/Darwin/dump_registers.cc
index 884ad2ed44c0..42db446ffc1c 100644
--- a/test/asan/TestCases/Darwin/dump_registers.cc
+++ b/test/asan/TestCases/Darwin/dump_registers.cc
@@ -18,7 +18,7 @@ int main() {
     assert(0 && "Your computer is weird.");
 
   char c = *ptr;  // BOOM
-  // CHECK: ERROR: AddressSanitizer: SEGV
+  // CHECK: ERROR: AddressSanitizer: {{SEGV|BUS}}
   // CHECK: Register values:
   // CHECK: {{0x55555555|0x6666666666666666}}
   fprintf(stderr, "World\n");
diff --git a/test/asan/TestCases/Darwin/reexec-insert-libraries-env.cc b/test/asan/TestCases/Darwin/reexec-insert-libraries-env.cc
index aa4d92b00a01..cd277a05b40b 100644
--- a/test/asan/TestCases/Darwin/reexec-insert-libraries-env.cc
+++ b/test/asan/TestCases/Darwin/reexec-insert-libraries-env.cc
@@ -7,7 +7,7 @@
 // RUN:     -dynamiclib -o darwin-dummy-shared-lib-so.dylib
 
 // FIXME: the following command line may hang in the case of a regression.
-// RUN: env DYLD_INSERT_LIBRARIES=darwin-dummy-shared-lib-so.dylib \
+// RUN: %env DYLD_INSERT_LIBRARIES=darwin-dummy-shared-lib-so.dylib \
 // RUN:     %run %t 2>&1 | FileCheck %s || exit 1
 
 #if !defined(SHARED_LIB)
diff --git a/test/asan/TestCases/Darwin/scribble.cc b/test/asan/TestCases/Darwin/scribble.cc
index 0ddee6b5eef5..8303cf316a9c 100644
--- a/test/asan/TestCases/Darwin/scribble.cc
+++ b/test/asan/TestCases/Darwin/scribble.cc
@@ -1,6 +1,6 @@
 // RUN: %clang_asan -O2 %s -o %t
 // RUN: %run %t 2>&1 | FileCheck --check-prefix=CHECK-NOSCRIBBLE %s
-// RUN: env MallocScribble=1 MallocPreScribble=1 %run %t 2>&1 | FileCheck --check-prefix=CHECK-SCRIBBLE %s
+// RUN: %env MallocScribble=1 MallocPreScribble=1 %run %t 2>&1 | FileCheck --check-prefix=CHECK-SCRIBBLE %s
 // RUN: %env_asan_opts=max_free_fill_size=4096 %run %t 2>&1 | FileCheck --check-prefix=CHECK-SCRIBBLE %s
 
 #include <stdint.h>
diff --git a/test/asan/TestCases/Darwin/unset-insert-libraries-on-exec.cc b/test/asan/TestCases/Darwin/unset-insert-libraries-on-exec.cc
index f8a330ad5fe0..62cf853a5436 100644
--- a/test/asan/TestCases/Darwin/unset-insert-libraries-on-exec.cc
+++ b/test/asan/TestCases/Darwin/unset-insert-libraries-on-exec.cc
@@ -10,7 +10,7 @@
 // execl().
 
 // RUN: %run %t %T/echo-env >/dev/null 2>&1
-// RUN: env DYLD_INSERT_LIBRARIES=%t-darwin-dummy-shared-lib-so.dylib \
+// RUN: %env DYLD_INSERT_LIBRARIES=%t-darwin-dummy-shared-lib-so.dylib \
 // RUN:     %run %t %T/echo-env 2>&1 | FileCheck %s || exit 1
 
 #if !defined(SHARED_LIB)
diff --git a/test/asan/TestCases/Linux/global-overflow-bfd.cc b/test/asan/TestCases/Linux/global-overflow-bfd.cc
new file mode 100644
index 000000000000..117a761af91f
--- /dev/null
+++ b/test/asan/TestCases/Linux/global-overflow-bfd.cc
@@ -0,0 +1,18 @@
+// Test that gc-sections-friendly instrumentation of globals does not introduce
+// false negatives with the BFD linker.
+// RUN: %clangxx_asan -fuse-ld=bfd -Wl,-gc-sections -ffunction-sections -fdata-sections -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+#include <string.h>
+int main(int argc, char **argv) {
+  static char XXX[10];
+  static char YYY[10];
+  static char ZZZ[10];
+  memset(XXX, 0, 10);
+  memset(YYY, 0, 10);
+  memset(ZZZ, 0, 10);
+  int res = YYY[argc * 10];  // BOOOM
+  // CHECK: {{READ of size 1 at}}
+  // CHECK: {{located 0 bytes to the right of global variable}}
+  res += XXX[argc] + ZZZ[argc];
+  return res;
+}
diff --git a/test/asan/TestCases/Linux/global-overflow-lld.cc b/test/asan/TestCases/Linux/global-overflow-lld.cc
new file mode 100644
index 000000000000..f4d0bc977604
--- /dev/null
+++ b/test/asan/TestCases/Linux/global-overflow-lld.cc
@@ -0,0 +1,19 @@
+// Test that gc-sections-friendly instrumentation of globals does not introduce
+// false negatives with the LLD linker.
+// RUN: %clangxx_asan -fuse-ld=lld -Wl,-gc-sections -ffunction-sections -fdata-sections -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// REQUIRES: lld
+
+#include <string.h>
+int main(int argc, char **argv) {
+  static char XXX[10];
+  static char YYY[10];
+  static char ZZZ[10];
+  memset(XXX, 0, 10);
+  memset(YYY, 0, 10);
+  memset(ZZZ, 0, 10);
+  int res = YYY[argc * 10];  // BOOOM
+  // CHECK: {{READ of size 1 at}}
+  // CHECK: {{located 0 bytes to the right of global variable}}
+  res += XXX[argc] + ZZZ[argc];
+  return res;
+}
diff --git a/test/asan/TestCases/Linux/globals-gc-sections-lld.cc b/test/asan/TestCases/Linux/globals-gc-sections-lld.cc
new file mode 100644
index 000000000000..0d8bcdd1cb17
--- /dev/null
+++ b/test/asan/TestCases/Linux/globals-gc-sections-lld.cc
@@ -0,0 +1,15 @@
+// RUN: %clangxx_asan %s -o %t -Wl,--gc-sections -fuse-ld=lld -ffunction-sections -fdata-sections -mllvm -asan-globals=0
+// RUN: %clangxx_asan %s -o %t -Wl,--gc-sections -fuse-ld=lld -ffunction-sections -fdata-sections -mllvm -asan-globals=1
+
+// https://code.google.com/p/address-sanitizer/issues/detail?id=260
+// REQUIRES: lld
+
+int undefined();
+
+// On i386 clang adds --export-dynamic when linking with ASan, which adds all
+// non-hidden globals to GC roots.
+__attribute__((visibility("hidden"))) int (*unused)() = undefined;
+
+int main() {
+        return 0;
+}
diff --git a/test/asan/TestCases/Linux/globals-gc-sections.cc b/test/asan/TestCases/Linux/globals-gc-sections.cc
deleted file mode 100644
index 72a9e9498f85..000000000000
--- a/test/asan/TestCases/Linux/globals-gc-sections.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// RUN: %clangxx_asan %s -o %t -Wl,--gc-sections -ffunction-sections -mllvm -asan-globals=0
-// RUN: %clangxx_asan %s -o %t -Wl,--gc-sections -ffunction-sections -mllvm -asan-globals=1
-
-// https://code.google.com/p/address-sanitizer/issues/detail?id=260
-// XFAIL: *
-
-int undefined();
-
-int (*unused)() = undefined;
-
-int main() {
-        return 0;
-}
diff --git a/test/asan/TestCases/Posix/asan-sigbus.cpp b/test/asan/TestCases/Posix/asan-sigbus.cpp
index e07392b4cd4b..a7d032acec03 100644
--- a/test/asan/TestCases/Posix/asan-sigbus.cpp
+++ b/test/asan/TestCases/Posix/asan-sigbus.cpp
@@ -4,6 +4,8 @@
 // RUN: not %run %t %T/file 2>&1 | FileCheck %s -check-prefix=CHECK-BUS
 // RUN: %env_asan_opts=handle_sigbus=false not --crash %run %t %T/file 2>&1 | FileCheck %s
 
+// UNSUPPORTED: ios
+
 #include <assert.h>
 #include <fcntl.h>
 #include <stdio.h>
diff --git a/test/asan/TestCases/Posix/coverage-direct-activation.cc b/test/asan/TestCases/Posix/coverage-direct-activation.cc
deleted file mode 100644
index 0af3296f22d4..000000000000
--- a/test/asan/TestCases/Posix/coverage-direct-activation.cc
+++ /dev/null
@@ -1,59 +0,0 @@
-// Test for direct coverage writing enabled at activation time.
-
-// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib -fPIC
-// RUN: %clangxx -c -DSO_DIR=\"%T\" %s -o %t.o
-// RUN: %clangxx_asan -fsanitize-coverage=func %t.o %libdl -o %t
-
-// RUN: rm -rf %T/coverage-direct-activation
-
-// RUN: mkdir -p %T/coverage-direct-activation/normal
-// RUN: %env_asan_opts=coverage=1,coverage_direct=0,coverage_dir=%T/coverage-direct-activation/normal:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov print %T/coverage-direct-activation/normal/*.sancov >%T/coverage-direct-activation/normal/out.txt
-
-// RUN: mkdir -p %T/coverage-direct-activation/direct
-// RUN: %env_asan_opts=start_deactivated=1,coverage_direct=1,verbosity=1 \
-// RUN:   ASAN_ACTIVATION_OPTIONS=coverage=1,coverage_dir=%T/coverage-direct-activation/direct %run %t %dynamiclib
-// RUN: cd %T/coverage-direct-activation/direct
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// Test start_deactivated=1,coverage=1 in ASAN_OPTIONS.
-
-// RUN: diff -u coverage-direct-activation/normal/out.txt coverage-direct-activation/direct/out.txt
-
-// RUN: mkdir -p %T/coverage-direct-activation/direct2
-// RUN: %env_asan_opts=start_deactivated=1,coverage=1,coverage_direct=1,verbosity=1 \
-// RUN:   ASAN_ACTIVATION_OPTIONS=coverage_dir=%T/coverage-direct-activation/direct2 %run %t %dynamiclib
-// RUN: cd %T/coverage-direct-activation/direct2
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: diff -u coverage-direct-activation/normal/out.txt coverage-direct-activation/direct2/out.txt
-
-// XFAIL: android
-
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#ifdef SHARED
-extern "C" {
-void bar() { printf("bar\n"); }
-}
-#else
-
-int main(int argc, char **argv) {
-  fprintf(stderr, "PID: %d\n", getpid());
-  assert(argc > 1);
-  void *handle1 = dlopen(argv[1], RTLD_LAZY);  // %dynamiclib
-  assert(handle1);
-  void (*bar1)() = (void (*)())dlsym(handle1, "bar");
-  assert(bar1);
-  bar1();
-
-  return 0;
-}
-#endif
diff --git a/test/asan/TestCases/Posix/coverage-direct-large.cc b/test/asan/TestCases/Posix/coverage-direct-large.cc
deleted file mode 100644
index 367a5667a711..000000000000
--- a/test/asan/TestCases/Posix/coverage-direct-large.cc
+++ /dev/null
@@ -1,65 +0,0 @@
-// Test for direct coverage writing with lots of data.
-// Current implementation maps output file in chunks of 64K. This test overflows
-// 1 chunk.
-
-// RUN: %clangxx_asan -fsanitize-coverage=func -O0 -DSHARED %s -shared -o %dynamiclib -fPIC
-// RUN: %clangxx_asan -fsanitize-coverage=func -O0 %s %libdl -o %t
-
-// RUN: rm -rf %T/coverage-direct-large
-
-// RUN: mkdir -p %T/coverage-direct-large/normal && cd %T/coverage-direct-large/normal
-// RUN: %env_asan_opts=coverage=1:coverage_direct=0:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: mkdir -p %T/coverage-direct-large/direct && cd %T/coverage-direct-large/direct
-// RUN: %env_asan_opts=coverage=1:coverage_direct=1:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: diff -u coverage-direct-large/normal/out.txt coverage-direct-large/direct/out.txt
-//
-// XFAIL: android
-
-#define F0(Q, x) Q(x)
-#define F1(Q, x)                                                          \
-  F0(Q, x##0) F0(Q, x##1) F0(Q, x##2) F0(Q, x##3) F0(Q, x##4) F0(Q, x##5) \
-      F0(Q, x##6) F0(Q, x##7) F0(Q, x##8) F0(Q, x##9)
-#define F2(Q, x)                                                          \
-  F1(Q, x##0) F1(Q, x##1) F1(Q, x##2) F1(Q, x##3) F1(Q, x##4) F1(Q, x##5) \
-      F1(Q, x##6) F1(Q, x##7) F1(Q, x##8) F1(Q, x##9)
-#define F3(Q, x)                                                          \
-  F2(Q, x##0) F2(Q, x##1) F2(Q, x##2) F2(Q, x##3) F2(Q, x##4) F2(Q, x##5) \
-      F2(Q, x##6) F2(Q, x##7) F2(Q, x##8) F2(Q, x##9)
-#define F4(Q, x)                                                          \
-  F3(Q, x##0) F3(Q, x##1) F3(Q, x##2) F3(Q, x##3) F3(Q, x##4) F3(Q, x##5) \
-      F3(Q, x##6) F3(Q, x##7) F3(Q, x##8) F3(Q, x##9)
-
-#define DECL(x) __attribute__((noinline)) static void x() {}
-#define CALL(x) x();
-
-F4(DECL, f)
-
-#ifdef SHARED
-extern "C" void so_entry() {
-  F4(CALL, f)
-}  
-#else
-
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-int main(int argc, char **argv) {
-  F4(CALL, f)
-  assert(argc > 1);
-  void *handle1 = dlopen(argv[1], RTLD_LAZY);  // %dynamiclib
-  assert(handle1);
-  void (*so_entry)() = (void (*)())dlsym(handle1, "so_entry");
-  assert(so_entry);
-  so_entry();
-
-  return 0;
-}
-
-#endif // SHARED
diff --git a/test/asan/TestCases/Posix/coverage-direct.cc b/test/asan/TestCases/Posix/coverage-direct.cc
deleted file mode 100644
index 8caa9c553f2e..000000000000
--- a/test/asan/TestCases/Posix/coverage-direct.cc
+++ /dev/null
@@ -1,83 +0,0 @@
-// Test for direct coverage writing with dlopen at coverage level 1 to 3.
-
-// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib -fPIC
-// RUN: %clangxx_asan -fsanitize-coverage=func %s %libdl -o %t
-
-// RUN: rm -rf %T/coverage-direct
-
-// RUN: mkdir -p %T/coverage-direct/normal
-// RUN: %env_asan_opts=coverage=1:coverage_direct=0:coverage_dir=%T/coverage-direct/normal:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov print %T/coverage-direct/normal/*.sancov >%T/coverage-direct/normal/out.txt
-
-// RUN: mkdir -p %T/coverage-direct/direct
-// RUN: %env_asan_opts=coverage=1:coverage_direct=1:coverage_dir=%T/coverage-direct/direct:verbosity=1 %run %t %dynamiclib
-// RUN: cd %T/coverage-direct/direct
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
-
-
-// RUN: %clangxx_asan -fsanitize-coverage=bb -DSHARED %s -shared -o %dynamiclib -fPIC
-// RUN: %clangxx_asan -fsanitize-coverage=bb -DSO_DIR=\"%T\" %s %libdl -o %t
-
-// RUN: rm -rf %T/coverage-direct
-
-// RUN: mkdir -p %T/coverage-direct/normal
-// RUN: %env_asan_opts=coverage=1:coverage_direct=0:coverage_dir=%T/coverage-direct/normal:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov print %T/coverage-direct/normal/*.sancov >%T/coverage-direct/normal/out.txt
-
-// RUN: mkdir -p %T/coverage-direct/direct
-// RUN: %env_asan_opts=coverage=1:coverage_direct=1:coverage_dir=%T/coverage-direct/direct:verbosity=1 %run %t %dynamiclib
-// RUN: cd %T/coverage-direct/direct
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
-
-
-// RUN: %clangxx_asan -fsanitize-coverage=edge -DSHARED %s -shared -o %dynamiclib -fPIC
-// RUN: %clangxx_asan -fsanitize-coverage=edge -DSO_DIR=\"%T\" %s %libdl -o %t
-
-// RUN: rm -rf %T/coverage-direct
-
-// RUN: mkdir -p %T/coverage-direct/normal
-// RUN: %env_asan_opts=coverage=1:coverage_direct=0:coverage_dir=%T/coverage-direct/normal:verbosity=1 %run %t %dynamiclib
-// RUN: %sancov print %T/coverage-direct/normal/*.sancov >%T/coverage-direct/normal/out.txt
-
-// RUN: mkdir -p %T/coverage-direct/direct
-// RUN: %env_asan_opts=coverage=1:coverage_direct=1:coverage_dir=%T/coverage-direct/direct:verbosity=1 %run %t %dynamiclib
-// RUN: cd %T/coverage-direct/direct
-// RUN: %sancov rawunpack *.sancov.raw
-// RUN: %sancov print *.sancov >out.txt
-// RUN: cd ../..
-
-// RUN: diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
-
-// XFAIL: android
-
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#ifdef SHARED
-extern "C" {
-void bar() { printf("bar\n"); }
-}
-#else
-
-int main(int argc, char **argv) {
-  fprintf(stderr, "PID: %d\n", getpid());
-  assert(argc > 1);
-  void *handle1 = dlopen(argv[1], RTLD_LAZY);
-  assert(handle1);
-  void (*bar1)() = (void (*)())dlsym(handle1, "bar");
-  assert(bar1);
-  bar1();
-
-  return 0;
-}
-#endif
diff --git a/test/asan/TestCases/Posix/coverage-fork-direct.cc b/test/asan/TestCases/Posix/coverage-fork-direct.cc
deleted file mode 100644
index c19671953809..000000000000
--- a/test/asan/TestCases/Posix/coverage-fork-direct.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// RUN: %clangxx_asan -fsanitize-coverage=func %s -o %t
-// RUN: rm -rf %T/coverage-fork-direct
-// RUN: mkdir -p %T/coverage-fork-direct && cd %T/coverage-fork-direct
-// RUN: (%env_asan_opts=coverage=1:coverage_direct=1:verbosity=1 %run %t; \
-// RUN:  %sancov rawunpack *.sancov.raw; %sancov print *.sancov) 2>&1
-//
-// XFAIL: android
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-__attribute__((noinline))
-void foo() { printf("foo\n"); }
-
-__attribute__((noinline))
-void bar() { printf("bar\n"); }
-
-__attribute__((noinline))
-void baz() { printf("baz\n"); }
-
-int main(int argc, char **argv) {
-  pid_t child_pid = fork();
-  if (child_pid == 0) {
-    fprintf(stderr, "Child PID: %d\n", getpid());
-    baz();
-  } else {
-    fprintf(stderr, "Parent PID: %d\n", getpid());
-    foo();
-    bar();
-  }
-  return 0;
-}
-
-// CHECK-DAG: Child PID: [[ChildPID:[0-9]+]]
-// CHECK-DAG: Parent PID: [[ParentPID:[0-9]+]]
-// CHECK-DAG: read 3 PCs from {{.*}}.[[ParentPID]].sancov
-// CHECK-DAG: read 1 PCs from {{.*}}.[[ChildPID]].sancov
diff --git a/test/asan/TestCases/Posix/current_allocated_bytes.cc b/test/asan/TestCases/Posix/current_allocated_bytes.cc
index c49e433b1e8b..51630cfd8a6b 100644
--- a/test/asan/TestCases/Posix/current_allocated_bytes.cc
+++ b/test/asan/TestCases/Posix/current_allocated_bytes.cc
@@ -1,6 +1,9 @@
 // RUN: %clangxx_asan -O0 %s -pthread -o %t && %run %t
 // RUN: %clangxx_asan -O2 %s -pthread -o %t && %run %t
 // REQUIRES: stable-runtime
+// UNSUPPORTED: powerpc64le
+// FIXME: This test occasionally fails on powerpc64 LE possibly starting with
+// r279664.  Re-enable the test once the problem(s) have been fixed.
 
 #include <assert.h>
 #include <pthread.h>
diff --git a/test/asan/TestCases/Posix/fread_fwrite.cc b/test/asan/TestCases/Posix/fread_fwrite.cc
index 97d44b7528ba..c0629260418a 100644
--- a/test/asan/TestCases/Posix/fread_fwrite.cc
+++ b/test/asan/TestCases/Posix/fread_fwrite.cc
@@ -1,6 +1,6 @@
 // RUN: %clangxx_asan -g %s -o %t
-// RUN: not %t 2>&1 | FileCheck %s --check-prefix=CHECK-FWRITE
-// RUN: not %t 1 2>&1 | FileCheck %s --check-prefix=CHECK-FREAD
+// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-FWRITE
+// RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK-FREAD
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/test/asan/TestCases/coverage-disabled.cc b/test/asan/TestCases/coverage-disabled.cc
index 490f2b27236a..b225035ee4ca 100644
--- a/test/asan/TestCases/coverage-disabled.cc
+++ b/test/asan/TestCases/coverage-disabled.cc
@@ -8,11 +8,6 @@
 // RUN: %env_asan_opts=coverage_direct=0:coverage_dir='"%T/coverage-disabled/normal"':verbosity=1 %run %t
 // RUN: not %sancov print %T/coverage-disabled/normal/*.sancov 2>&1
 //
-// RUN: mkdir -p %T/coverage-disabled/direct
-// RUN: %env_asan_opts=coverage_direct=1:coverage_dir='"%T/coverage-disabled/direct"':verbosity=1 %run %t
-// RUN: cd %T/coverage-disabled/direct
-// RUN: not %sancov rawunpack *.sancov
-//
 // UNSUPPORTED: android
 
 int main(int argc, char **argv) {
diff --git a/test/asan/TestCases/coverage-levels.cc b/test/asan/TestCases/coverage-levels.cc
deleted file mode 100644
index ae9ac4841e52..000000000000
--- a/test/asan/TestCases/coverage-levels.cc
+++ /dev/null
@@ -1,31 +0,0 @@
-// Test various levels of coverage
-//
-// RUN: %clangxx_asan -O1 -fsanitize-coverage=func  %s -o %t
-// RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
-// RUN: %clangxx_asan -O1 -fsanitize-coverage=bb  %s -o %t
-// RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK2
-// RUN: %clangxx_asan -O1 -fsanitize-coverage=edge  %s -o %t
-// RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3
-// RUN: %clangxx_asan -O1 -fsanitize-coverage=edge -mllvm -sanitizer-coverage-block-threshold=0 %s -o %t
-// RUN: %env_asan_opts=coverage=1:coverage_bitset=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3
-
-// RUN: %env_asan_opts=coverage=1:coverage_bitset=0:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOBITSET
-// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOBITSET
-// RUN: %env_asan_opts=coverage=1:coverage_pcs=0:verbosity=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK3_NOPCS
-//
-// REQUIRES: asan-64-bits
-// UNSUPPORTED: android
-volatile int sink;
-int main(int argc, char **argv) {
-  if (argc == 0)
-    sink = 0;
-}
-
-// CHECK1: CovDump: bitset of 1 bits written for '{{.*}}', 1 bits are set
-// CHECK1:  1 PCs written
-// CHECK2: CovDump: bitset of 2 bits written for '{{.*}}', 1 bits are set
-// CHECK2:  1 PCs written
-// CHECK3: CovDump: bitset of 3 bits written for '{{.*}}', 2 bits are set
-// CHECK3:  2 PCs written
-// CHECK3_NOBITSET-NOT: bitset of
-// CHECK3_NOPCS-NOT: PCs written
diff --git a/test/asan/TestCases/initialization-bug.cc b/test/asan/TestCases/initialization-bug.cc
index b28174f59aeb..6ecc6c836c5c 100644
--- a/test/asan/TestCases/initialization-bug.cc
+++ b/test/asan/TestCases/initialization-bug.cc
@@ -10,6 +10,7 @@
 
 // The test is expected to fail on OS X Yosemite and older
 // UNSUPPORTED: osx-no-ld64-live_support
+// UNSUPPORTED: ios
 
 #include <cstdio>
 
diff --git a/test/asan/TestCases/small_memcpy_test.cc b/test/asan/TestCases/small_memcpy_test.cc
new file mode 100644
index 000000000000..2d6dea60caed
--- /dev/null
+++ b/test/asan/TestCases/small_memcpy_test.cc
@@ -0,0 +1,28 @@
+// Test that small memcpy works correctly.
+
+// RUN: %clangxx_asan %s -o %t
+// RUN: not %run %t 8 24 2>&1 | FileCheck %s --check-prefix=CHECK
+// RUN: not %run %t 16 32 2>&1 | FileCheck %s --check-prefix=CHECK
+// RUN: not %run %t 24 40 2>&1 | FileCheck %s --check-prefix=CHECK
+// RUN: not %run %t 32 48 2>&1 | FileCheck %s --check-prefix=CHECK
+// RUN: not %run %t 40 56 2>&1 | FileCheck %s --check-prefix=CHECK
+// RUN: not %run %t 48 64 2>&1 | FileCheck %s --check-prefix=CHECK
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <sanitizer/asan_interface.h>
+
+int main(int argc, char **argv) {
+  assert(argc == 3);
+  size_t poison_from = atoi(argv[1]);
+  size_t poison_to = atoi(argv[2]);
+  assert(poison_from <= poison_to);
+  char A1[64], A2[64];
+  fprintf(stderr, "%zd %zd\n", poison_from, poison_to - poison_from);
+  __asan_poison_memory_region(&A1[0] + poison_from, poison_to - poison_from);
+  memcpy(A1, A2, sizeof(A1));
+// CHECK: AddressSanitizer: use-after-poison
+  return 0;
+}
diff --git a/test/asan/TestCases/strtok.c b/test/asan/TestCases/strtok.c
index e1eee89ee709..c7b261777254 100644
--- a/test/asan/TestCases/strtok.c
+++ b/test/asan/TestCases/strtok.c
@@ -4,7 +4,7 @@
 
 // RUN: %env_asan_opts=strict_string_checks=true not %run %t test1 2>&1 | \
 // RUN:    FileCheck %s --check-prefix=CHECK1
-// RUN: %env_asan_opts=intercept_strtok=false%run %t test1 2>&1
+// RUN: %env_asan_opts=intercept_strtok=false %run %t test1 2>&1
 // RUN: %env_asan_opts=strict_string_checks=true not %run %t test2 2>&1 | \
 // RUN:    FileCheck %s --check-prefix=CHECK2
 // RUN: %env_asan_opts=intercept_strtok=false %run %t test2 2>&1
diff --git a/test/asan/lit.cfg b/test/asan/lit.cfg
index 7d684a1ae7a7..b433a91e830e 100644
--- a/test/asan/lit.cfg
+++ b/test/asan/lit.cfg
@@ -108,14 +108,12 @@ if platform.system() == 'Windows':
 asan_lit_source_dir = get_required_attr(config, "asan_lit_source_dir")
 if config.android == "1":
   config.available_features.add('android')
-  clang_wrapper = os.path.join(asan_lit_source_dir,
-                               "android_commands", "android_compile.py") + " "
+  compile_wrapper = os.path.join(asan_lit_source_dir, "android_commands", "android_compile.py") + " "
 else:
   config.available_features.add('not-android')
-  clang_wrapper = ""
 
 def build_invocation(compile_flags):
-  return " " + " ".join([clang_wrapper, config.clang] + compile_flags) + " "
+  return " " + " ".join([config.compile_wrapper, config.clang] + compile_flags) + " "
 
 # Clang driver link 'x86' (i686) architecture to 'i386'.
 target_arch = config.target_arch
diff --git a/test/asan/lit.site.cfg.in b/test/asan/lit.site.cfg.in
index 1b6fed2cb9d6..100592db267d 100644
--- a/test/asan/lit.site.cfg.in
+++ b/test/asan/lit.site.cfg.in
@@ -7,6 +7,8 @@ config.target_cflags = "@ASAN_TEST_TARGET_CFLAGS@"
 config.clang = "@ASAN_TEST_TARGET_CC@"
 config.bits = "@ASAN_TEST_BITS@"
 config.android = "@ANDROID@"
+config.ios = @ASAN_TEST_IOS_PYBOOL@
+config.iossim = @ASAN_TEST_IOSSIM_PYBOOL@
 config.asan_dynamic = @ASAN_TEST_DYNAMIC@
 config.target_arch = "@ASAN_TEST_TARGET_ARCH@"
 
diff --git a/test/lit.common.cfg b/test/lit.common.cfg
index 4b03a5504221..6080edca4fbf 100644
--- a/test/lit.common.cfg
+++ b/test/lit.common.cfg
@@ -94,7 +94,26 @@ config.substitutions.append(
      instead define '%clangXXX' substitution in lit config. ***\n\n""") )
 
 # Allow tests to be executed on a simulator or remotely.
-config.substitutions.append( ('%run', config.emulator) )
+if config.emulator:
+  config.substitutions.append( ('%run', config.emulator) )
+  config.substitutions.append( ('%env ', "env ") )
+  config.compile_wrapper = ""
+elif config.ios:
+  config.available_features.add('ios')
+
+  device_id_env = "SANITIZER_IOSSIM_TEST_DEVICE_IDENTIFIER" if config.iossim else "SANITIZER_IOS_TEST_DEVICE_IDENTIFIER"
+  if device_id_env in os.environ: config.environment[device_id_env] = os.environ[device_id_env]
+  ios_commands_dir = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "ios_commands")
+  run_wrapper = os.path.join(ios_commands_dir, "iossim_run.py" if config.iossim else "ios_run.py")
+  config.substitutions.append(('%run', run_wrapper))
+  env_wrapper = os.path.join(ios_commands_dir, "iossim_env.py" if config.iossim else "ios_env.py")
+  config.substitutions.append(('%env ', env_wrapper + " "))
+  compile_wrapper = os.path.join(ios_commands_dir, "iossim_compile.py" if config.iossim else "ios_compile.py")
+  config.compile_wrapper = compile_wrapper
+else:
+  config.substitutions.append( ('%run', "") )
+  config.substitutions.append( ('%env ', "env ") )
+  config.compile_wrapper = ""
 
 # Define CHECK-%os to check for OS-dependent output.
 config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
diff --git a/test/lit.common.configured.in b/test/lit.common.configured.in
index 0ad03a180042..dc3081d6a53b 100644
--- a/test/lit.common.configured.in
+++ b/test/lit.common.configured.in
@@ -25,6 +25,8 @@ set_default("python_executable", "@PYTHON_EXECUTABLE@")
 set_default("compiler_rt_debug", @COMPILER_RT_DEBUG_PYBOOL@)
 set_default("compiler_rt_libdir", "@COMPILER_RT_LIBRARY_OUTPUT_DIR@")
 set_default("emulator", "@COMPILER_RT_EMULATOR@")
+set_default("ios", False)
+set_default("iossim", False)
 set_default("sanitizer_can_use_cxxabi", @SANITIZER_CAN_USE_CXXABI_PYBOOL@)
 set_default("has_lld", @COMPILER_RT_HAS_LLD_PYBOOL@)
 set_default("can_symbolize", @CAN_SYMBOLIZE@)
diff --git a/test/sanitizer_common/TestCases/sanitizer_coverage_symbolize.cc b/test/sanitizer_common/TestCases/sanitizer_coverage_symbolize.cc
index 48f32a705c3a..266dc3f0e976 100644
--- a/test/sanitizer_common/TestCases/sanitizer_coverage_symbolize.cc
+++ b/test/sanitizer_common/TestCases/sanitizer_coverage_symbolize.cc
@@ -9,7 +9,6 @@
 // RUN: cd $DIR
 // RUN: %clangxx -O0 -fsanitize-coverage=trace-pc-guard %s -ldl -o %t
 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
-// RUN: %env_tool_opts=coverage=1 SANCOV_OPTIONS=symbolize=0 %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOSYM
 // RUN: rm -rf $DIR
 
 #include <stdio.h>
@@ -27,8 +26,3 @@ int main() {
 
 // CHECK: main
 // CHECK: SanitizerCoverage: ./sanitizer_coverage_symbolize.{{.*}}.sancov 2 PCs written
-// CHECK: call sancov
-
-// CHECK-NOSYM: main
-// CHECK-NOSYM: SanitizerCoverage: ./sanitizer_coverage_symbolize.{{.*}}.sancov 2 PCs written
-// CHECK-NOSYM-NOT: call sancov
diff --git a/test/sanitizer_common/ios_commands/iossim_compile.py b/test/sanitizer_common/ios_commands/iossim_compile.py
new file mode 100755
index 000000000000..8fa480ed5f60
--- /dev/null
+++ b/test/sanitizer_common/ios_commands/iossim_compile.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python
+
+import os, sys, subprocess
+
+output = None
+output_type = 'executable'
+
+args = sys.argv[1:]
+while args:
+    arg = args.pop(0)
+    if arg == '-shared':
+        output_type = 'shared'
+    elif arg == '-dynamiclib':
+        output_type = 'dylib'
+    elif arg == '-c':
+        output_type = 'object'
+    elif arg == '-S':
+        output_type = 'assembly'
+    elif arg == '-o':
+        output = args.pop(0)
+
+if output == None:
+    print "No output file name!"
+    sys.exit(1)
+
+ret = subprocess.call(sys.argv[1:])
+if ret != 0:
+    sys.exit(ret)
+
+# If we produce a dylib, ad-hoc sign it.
+if output_type in ['shared', 'dylib']:
+    ret = subprocess.call(["codesign", "-s", "-", output])
diff --git a/test/sanitizer_common/ios_commands/iossim_env.py b/test/sanitizer_common/ios_commands/iossim_env.py
new file mode 100755
index 000000000000..28f626900f0b
--- /dev/null
+++ b/test/sanitizer_common/ios_commands/iossim_env.py
@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+import os, sys, subprocess
+
+
+idx = 1
+for arg in sys.argv[1:]:
+  if not "=" in arg:
+    break
+  idx += 1
+  (argname, argval) = arg.split("=")
+  os.environ["SIMCTL_CHILD_" + argname] = argval
+
+exitcode = subprocess.call(sys.argv[idx:])
+if exitcode > 125:
+  exitcode = 126
+sys.exit(exitcode)
diff --git a/test/sanitizer_common/ios_commands/iossim_run.py b/test/sanitizer_common/ios_commands/iossim_run.py
new file mode 100755
index 000000000000..732880f35183
--- /dev/null
+++ b/test/sanitizer_common/ios_commands/iossim_run.py
@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+import os, sys, subprocess
+
+
+if not "SANITIZER_IOSSIM_TEST_DEVICE_IDENTIFIER" in os.environ:
+  raise EnvironmentError("Specify SANITIZER_IOSSIM_TEST_DEVICE_IDENTIFIER to select which simulator to use.")
+
+device_id = os.environ["SANITIZER_IOSSIM_TEST_DEVICE_IDENTIFIER"]
+
+if "ASAN_OPTIONS" in os.environ:
+    os.environ["SIMCTL_CHILD_ASAN_OPTIONS"] = os.environ["ASAN_OPTIONS"]
+
+exitcode = subprocess.call(["xcrun", "simctl", "spawn", device_id] + sys.argv[1:])
+if exitcode > 125:
+  exitcode = 126
+sys.exit(exitcode)
diff --git a/test/tsan/Darwin/xpc-cancel.mm b/test/tsan/Darwin/xpc-cancel.mm
index 5e326b7e4973..91dafc3eadda 100644
--- a/test/tsan/Darwin/xpc-cancel.mm
+++ b/test/tsan/Darwin/xpc-cancel.mm
@@ -1,6 +1,8 @@
 // RUN: %clang_tsan %s -o %t -framework Foundation
 // RUN: %run %t 2>&1 | FileCheck %s
 
+// XFAIL: ios
+
 #import <Foundation/Foundation.h>
 #import <xpc/xpc.h>
 
diff --git a/test/tsan/Darwin/xpc-race.mm b/test/tsan/Darwin/xpc-race.mm
index eaef4e06c1f6..2e965e4a0a1c 100644
--- a/test/tsan/Darwin/xpc-race.mm
+++ b/test/tsan/Darwin/xpc-race.mm
@@ -1,6 +1,8 @@
 // RUN: %clang_tsan %s -o %t -framework Foundation
 // RUN: %deflake %run %t 2>&1 | FileCheck %s
 
+// XFAIL: ios
+
 #import <Foundation/Foundation.h>
 #import <xpc/xpc.h>
 
@@ -74,8 +76,8 @@ int main(int argc, const char *argv[]) {
 // CHECK: Hello world.
 // CHECK: WARNING: ThreadSanitizer: data race
 // CHECK:   Write of size 8
-// CHECK:     #0 {{.*}}xpc-race.mm:34
+// CHECK:     #0 {{.*}}xpc-race.mm:36
 // CHECK:   Previous write of size 8
-// CHECK:     #0 {{.*}}xpc-race.mm:34
+// CHECK:     #0 {{.*}}xpc-race.mm:36
 // CHECK: Location is global 'global'
 // CHECK: Done.
diff --git a/test/tsan/Darwin/xpc.mm b/test/tsan/Darwin/xpc.mm
index 2d6de269b59f..c5e78a5779e0 100644
--- a/test/tsan/Darwin/xpc.mm
+++ b/test/tsan/Darwin/xpc.mm
@@ -1,6 +1,8 @@
 // RUN: %clang_tsan %s -o %t -framework Foundation
 // RUN: %run %t 2>&1 | FileCheck %s
 
+// XFAIL: ios
+
 #import <Foundation/Foundation.h>
 #import <xpc/xpc.h>
 
diff --git a/test/tsan/ignore_lib1.cc b/test/tsan/ignore_lib1.cc
index e6a13a394395..5949d811ed44 100644
--- a/test/tsan/ignore_lib1.cc
+++ b/test/tsan/ignore_lib1.cc
@@ -9,6 +9,9 @@
 // in called_from_lib suppression are ignored.
 
 // REQUIRES: stable-runtime
+// UNSUPPORTED: powerpc64le
+// FIXME: This test regularly fails on powerpc64 LE possibly starting with
+// r279664.  Re-enable the test once the problem(s) have been fixed.
 
 #ifndef LIB
 
diff --git a/test/tsan/ignore_lib5.cc b/test/tsan/ignore_lib5.cc
index d7cd28500be9..54630d534c34 100644
--- a/test/tsan/ignore_lib5.cc
+++ b/test/tsan/ignore_lib5.cc
@@ -6,6 +6,9 @@
 // RUN: %env_tsan_opts=suppressions='%s.supp' %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-WITHSUPP
 
 // REQUIRES: stable-runtime
+// UNSUPPORTED: powerpc64le
+// FIXME: This test occasionally fails on powerpc64 LE possibly starting with
+// r279664.  Re-enable the test once the problem(s) have been fixed.
 
 // Previously the test episodically failed with:
 //   ThreadSanitizer: called_from_lib suppression '/libignore_lib1.so$' is
diff --git a/test/ubsan/TestCases/Float/cast-overflow.cpp b/test/ubsan/TestCases/Float/cast-overflow.cpp
index 5f51553f4e4e..85c5049b40ab 100644
--- a/test/ubsan/TestCases/Float/cast-overflow.cpp
+++ b/test/ubsan/TestCases/Float/cast-overflow.cpp
@@ -86,42 +86,42 @@ int main(int argc, char **argv) {
   case '0': {
     // Note that values between 0x7ffffe00 and 0x80000000 may or may not
     // successfully round-trip, depending on the rounding mode.
-    // CHECK-0: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: value 2.14748{{.*}} is outside the range of representable values of type 'int'
+    // CHECK-0: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: 2.14748{{.*}} is outside the range of representable values of type 'int'
     static int test_int = MaxFloatRepresentableAsInt + 0x80;
     // CHECK-0: SUMMARY: {{.*}}Sanitizer: float-cast-overflow {{.*}}cast-overflow.cpp:[[@LINE-1]]
     return 0;
     }
   case '1': {
-    // CHECK-1: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: value -2.14748{{.*}} is outside the range of representable values of type 'int'
+    // CHECK-1: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: -2.14748{{.*}} is outside the range of representable values of type 'int'
     static int test_int = MinFloatRepresentableAsInt - 0x100;
     return 0;
   }
   case '2': {
-    // CHECK-2: {{.*}}cast-overflow.cpp:[[@LINE+2]]:37: runtime error: value -1 is outside the range of representable values of type 'unsigned int'
+    // CHECK-2: {{.*}}cast-overflow.cpp:[[@LINE+2]]:37: runtime error: -1 is outside the range of representable values of type 'unsigned int'
     volatile float f = -1.0;
     volatile unsigned u = (unsigned)f;
     return 0;
   }
   case '3': {
-    // CHECK-3: {{.*}}cast-overflow.cpp:[[@LINE+1]]:37: runtime error: value 4.2949{{.*}} is outside the range of representable values of type 'unsigned int'
+    // CHECK-3: {{.*}}cast-overflow.cpp:[[@LINE+1]]:37: runtime error: 4.2949{{.*}} is outside the range of representable values of type 'unsigned int'
     static int test_int = (unsigned)(MaxFloatRepresentableAsUInt + 0x100);
     return 0;
   }
 
   case '4': {
-    // CHECK-4: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: value {{.*}} is outside the range of representable values of type 'int'
+    // CHECK-4: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: {{.*}} is outside the range of representable values of type 'int'
     static int test_int = Inf;
     return 0;
   }
   case '5': {
-    // CHECK-5: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: value {{.*}} is outside the range of representable values of type 'int'
+    // CHECK-5: {{.*}}cast-overflow.cpp:[[@LINE+1]]:27: runtime error: {{.*}} is outside the range of representable values of type 'int'
     static int test_int = NaN;
     return 0;
   }
 
     // Integer -> floating point overflow.
   case '6': {
-    // CHECK-6: cast-overflow.cpp:[[@LINE+2]]:{{34: runtime error: value 0xffffff00000000000000000000000001 is outside the range of representable values of type 'float'| __int128 not supported}}
+    // CHECK-6: cast-overflow.cpp:[[@LINE+2]]:{{34: runtime error: 0xffffff00000000000000000000000001 is outside the range of representable values of type 'float'| __int128 not supported}}
 #if defined(__SIZEOF_INT128__) && !defined(_WIN32)
     static int test_int = (float)(FloatMaxAsUInt128 + 1);
     return 0;
@@ -135,16 +135,16 @@ int main(int argc, char **argv) {
   // FIXME: The backend cannot lower __fp16 operations on x86 yet.
   //case '7':
   //  (__fp16)65504; // ok
-  //  // CHECK-7: runtime error: value 65505 is outside the range of representable values of type '__fp16'
+  //  // CHECK-7: runtime error: 65505 is outside the range of representable values of type '__fp16'
   //  return (__fp16)65505;
 
     // Floating point -> floating point overflow.
   case '8':
-    // CHECK-8: {{.*}}cast-overflow.cpp:[[@LINE+1]]:19: runtime error: value 1e+39 is outside the range of representable values of type 'float'
+    // CHECK-8: {{.*}}cast-overflow.cpp:[[@LINE+1]]:19: runtime error: 1e+39 is outside the range of representable values of type 'float'
     return (float)1e39;
   case '9':
     volatile long double ld = 300.0;
-    // CHECK-9: {{.*}}cast-overflow.cpp:[[@LINE+1]]:14: runtime error: value 300 is outside the range of representable values of type 'char'
+    // CHECK-9: {{.*}}cast-overflow.cpp:[[@LINE+1]]:14: runtime error: 300 is outside the range of representable values of type 'char'
     char c = ld;
     return c;
   }
diff --git a/test/ubsan/TestCases/Misc/log-path_test.cc b/test/ubsan/TestCases/Misc/log-path_test.cc
index 5b45f0b6f847..40bb35a06aaf 100644
--- a/test/ubsan/TestCases/Misc/log-path_test.cc
+++ b/test/ubsan/TestCases/Misc/log-path_test.cc
@@ -32,5 +32,5 @@ int main(int argc, char *argv[]) {
   return 0;
 }
 
-// CHECK-ERROR: runtime error: value -4 is outside the range of representable values of type 'unsigned int'
+// CHECK-ERROR: runtime error: -4 is outside the range of representable values of type 'unsigned int'
 
diff --git a/test/ubsan/TestCases/Misc/missing_return.cpp b/test/ubsan/TestCases/Misc/missing_return.cpp
index 68082272d62c..7b56b97048e3 100644
--- a/test/ubsan/TestCases/Misc/missing_return.cpp
+++ b/test/ubsan/TestCases/Misc/missing_return.cpp
@@ -1,13 +1,10 @@
 // RUN: %clangxx -fsanitize=return -g %s -O3 -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
-// RUN: %env_ubsan_opts=print_stacktrace=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%os-STACKTRACE
+// RUN: %env_ubsan_opts=print_stacktrace=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-STACKTRACE
 
 // CHECK: missing_return.cpp:[[@LINE+1]]:5: runtime error: execution reached the end of a value-returning function without returning a value
 int f() {
-// Slow stack unwinding is not available on Darwin for now, see
-// https://code.google.com/p/address-sanitizer/issues/detail?id=137
-// CHECK-Linux-STACKTRACE: #0 {{.*}}f(){{.*}}missing_return.cpp:[[@LINE-3]]
-// CHECK-FreeBSD-STACKTRACE: #0 {{.*}}f(void){{.*}}missing_return.cpp:[[@LINE-4]]
+// CHECK-STACKTRACE: #0 {{.*}}f{{.*}}missing_return.cpp:[[@LINE-1]]
 }
 
 int main(int, char **argv) {
diff --git a/test/ubsan/TestCases/TypeCheck/misaligned.cpp b/test/ubsan/TestCases/TypeCheck/misaligned.cpp
index 35b1ec3fe706..b3ff3588ba28 100644
--- a/test/ubsan/TestCases/TypeCheck/misaligned.cpp
+++ b/test/ubsan/TestCases/TypeCheck/misaligned.cpp
@@ -11,7 +11,7 @@
 // RUN: %run %t f1 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN
 // RUN: %run %t n1 2>&1 | FileCheck %s --check-prefix=CHECK-NEW
 // RUN: %run %t u1 2>&1 | FileCheck %s --check-prefix=CHECK-UPCAST
-// RUN: %env_ubsan_opts=print_stacktrace=1 %run %t l1 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD --check-prefix=CHECK-%os-STACK-LOAD
+// RUN: %env_ubsan_opts=print_stacktrace=1 %run %t l1 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD --check-prefix=CHECK-STACK-LOAD
 
 // RUN: %clangxx -fsanitize=alignment -fno-sanitize-recover=alignment %s -O3 -o %t
 // RUN: not %run %t w1 2>&1 | FileCheck %s --check-prefix=CHECK-WILD
@@ -47,11 +47,7 @@ int main(int, char **argv) {
     // CHECK-LOAD-NEXT: {{^ 00 00 00 01 02 03 04  05}}
     // CHECK-LOAD-NEXT: {{^             \^}}
     return *p && 0;
-    // Slow stack unwinding is disabled on Darwin for now, see
-    // https://code.google.com/p/address-sanitizer/issues/detail?id=137
-    // CHECK-Linux-STACK-LOAD: #0 {{.*}}main{{.*}}misaligned.cpp
-    // Check for the already checked line to avoid lit error reports.
-    // CHECK-Darwin-STACK-LOAD: {{ }}
+    // CHECK-STACK-LOAD: #0 {{.*}}main{{.*}}misaligned.cpp
 
   case 's':
     // CHECK-STORE: misaligned.cpp:[[@LINE+4]]{{(:5)?}}: runtime error: store to misaligned address [[PTR:0x[0-9a-f]*]] for type 'int', which requires 4 byte alignment