Vendor import of compiler-rt trunk r300422:vendor/compiler-rt/compiler-rt-trunk-r300422

https://llvm.org/svn/llvm-project/compiler-rt/trunk@300422

33 files changed, 59 insertions, 30 deletions

diff --git a/test/lsan/TestCases/cleanup_in_tsd_destructor.c b/test/lsan/TestCases/Linux/cleanup_in_tsd_destructor.c
index 6da759563451..6da759563451 100644
--- a/test/lsan/TestCases/cleanup_in_tsd_destructor.c
+++ b/test/lsan/TestCases/Linux/cleanup_in_tsd_destructor.c
diff --git a/test/lsan/TestCases/disabler_in_tsd_destructor.c b/test/lsan/TestCases/Linux/disabler_in_tsd_destructor.c
index 4a3a7ac14c3b..4a3a7ac14c3b 100644
--- a/test/lsan/TestCases/disabler_in_tsd_destructor.c
+++ b/test/lsan/TestCases/Linux/disabler_in_tsd_destructor.c
diff --git a/test/lsan/TestCases/fork.cc b/test/lsan/TestCases/Linux/fork.cc
index 9e72fe871cf1..9e72fe871cf1 100644
--- a/test/lsan/TestCases/fork.cc
+++ b/test/lsan/TestCases/Linux/fork.cc
diff --git a/test/lsan/TestCases/fork_threaded.cc b/test/lsan/TestCases/Linux/fork_threaded.cc
index 62702b4dfe47..62702b4dfe47 100644
--- a/test/lsan/TestCases/fork_threaded.cc
+++ b/test/lsan/TestCases/Linux/fork_threaded.cc
diff --git a/test/lsan/TestCases/guard-page.c b/test/lsan/TestCases/Linux/guard-page.c
index 25d63e2720c3..25d63e2720c3 100644
--- a/test/lsan/TestCases/guard-page.c
+++ b/test/lsan/TestCases/Linux/guard-page.c
diff --git a/test/lsan/TestCases/Linux/lit.local.cfg b/test/lsan/TestCases/Linux/lit.local.cfg
new file mode 100644
index 000000000000..57271b8078a4
--- /dev/null
+++ b/test/lsan/TestCases/Linux/lit.local.cfg
@@ -0,0 +1,9 @@
+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if root.host_os not in ['Linux']:
+  config.unsupported = True
diff --git a/test/lsan/TestCases/use_tls_dynamic.cc b/test/lsan/TestCases/Linux/use_tls_dynamic.cc
index 927c5c4f768e..6af82d59e099 100644
--- a/test/lsan/TestCases/use_tls_dynamic.cc
+++ b/test/lsan/TestCases/Linux/use_tls_dynamic.cc
@@ -1,10 +1,11 @@
 // Test that dynamically allocated TLS space is included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0:use_ld_allocations=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0:use_ld_allocations=0"
 // RUN: %clangxx %s -DBUILD_DSO -fPIC -shared -o %t-so.so
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
 // RUN: LSAN_OPTIONS="" %run %t 2>&1
+// UNSUPPORTED: i386-linux,i686-linux,arm
 
 #ifndef BUILD_DSO
 #include <assert.h>
diff --git a/test/lsan/TestCases/use_tls_pthread_specific_dynamic.cc b/test/lsan/TestCases/Linux/use_tls_pthread_specific_dynamic.cc
index 9ab4e1cdbc0e..f075d035a3e3 100644
--- a/test/lsan/TestCases/use_tls_pthread_specific_dynamic.cc
+++ b/test/lsan/TestCases/Linux/use_tls_pthread_specific_dynamic.cc
@@ -1,5 +1,5 @@
 // Test that dynamically allocated thread-specific storage is included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_tls_pthread_specific_static.cc b/test/lsan/TestCases/Linux/use_tls_pthread_specific_static.cc
index be0bcf628754..d97abab41f09 100644
--- a/test/lsan/TestCases/use_tls_pthread_specific_static.cc
+++ b/test/lsan/TestCases/Linux/use_tls_pthread_specific_static.cc
@@ -1,5 +1,5 @@
 // Test that statically allocated thread-specific storage is included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_tls_static.cc b/test/lsan/TestCases/Linux/use_tls_static.cc
index 5ffaf166bcd5..be34a3abf301 100644
--- a/test/lsan/TestCases/use_tls_static.cc
+++ b/test/lsan/TestCases/Linux/use_tls_static.cc
@@ -1,5 +1,5 @@
 // Test that statically allocated TLS space is included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_tls=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/disabler.cc b/test/lsan/TestCases/disabler.cc
index 12e5ffe4d44a..95e58f457cc4 100644
--- a/test/lsan/TestCases/disabler.cc
+++ b/test/lsan/TestCases/disabler.cc
@@ -1,5 +1,5 @@
 // Test for ScopedDisabler.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0:use_stacks=0:use_globals=0:use_tls=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0:use_stacks=0:use_globals=0:use_tls=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
 
diff --git a/test/lsan/TestCases/do_leak_check_override.cc b/test/lsan/TestCases/do_leak_check_override.cc
index bedb0cad6908..3d191f861d02 100644
--- a/test/lsan/TestCases/do_leak_check_override.cc
+++ b/test/lsan/TestCases/do_leak_check_override.cc
@@ -1,7 +1,7 @@
 // Test for __lsan_do_leak_check(). We test it by making the leak check run
 // before global destructors, which also tests compatibility with HeapChecker's
 // "normal" mode (LSan runs in "strict" mode by default).
-// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck --check-prefix=CHECK-strict %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t foo 2>&1 | FileCheck --check-prefix=CHECK-normal %s
diff --git a/test/lsan/TestCases/high_allocator_contention.cc b/test/lsan/TestCases/high_allocator_contention.cc
index f423fd48c79c..322e61bde8d9 100644
--- a/test/lsan/TestCases/high_allocator_contention.cc
+++ b/test/lsan/TestCases/high_allocator_contention.cc
@@ -1,6 +1,6 @@
 // A benchmark that executes malloc/free pairs in parallel.
 // Usage: ./a.out number_of_threads total_number_of_allocations
-// RUN: LSAN_BASE="use_ld_allocations=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_ld_allocations=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t 5 1000000 2>&1
 #include <assert.h>
diff --git a/test/lsan/TestCases/large_allocation_leak.cc b/test/lsan/TestCases/large_allocation_leak.cc
index 9d5698c9f8a6..c3da932a41a4 100644
--- a/test/lsan/TestCases/large_allocation_leak.cc
+++ b/test/lsan/TestCases/large_allocation_leak.cc
@@ -1,8 +1,12 @@
 // Test that LargeMmapAllocator's chunks aren't reachable via some internal data structure.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
 
+// For 32 bit LSan it's pretty likely that large chunks are "reachable" from some
+// internal data structures (e.g. Glibc global data).
+// UNSUPPORTED: x86, arm
+
 #include <stdio.h>
 #include <stdlib.h>
 #include "sanitizer_common/print_address.h"
diff --git a/test/lsan/TestCases/leak_check_at_exit.cc b/test/lsan/TestCases/leak_check_at_exit.cc
index 6f1cd22cf68d..5659b396894e 100644
--- a/test/lsan/TestCases/leak_check_at_exit.cc
+++ b/test/lsan/TestCases/leak_check_at_exit.cc
@@ -1,5 +1,5 @@
 // Test for the leak_check_at_exit flag.
-// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t foo 2>&1 | FileCheck %s --check-prefix=CHECK-do
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-do
diff --git a/test/lsan/TestCases/link_turned_off.cc b/test/lsan/TestCases/link_turned_off.cc
index 2482f6197d92..a425a6c2da3e 100644
--- a/test/lsan/TestCases/link_turned_off.cc
+++ b/test/lsan/TestCases/link_turned_off.cc
@@ -1,5 +1,5 @@
 // Test for disabling LSan at link-time.
-// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t foo 2>&1 | FileCheck %s
diff --git a/test/lsan/TestCases/pointer_to_self.cc b/test/lsan/TestCases/pointer_to_self.cc
index 40c122811f18..ea1208dcfa78 100644
--- a/test/lsan/TestCases/pointer_to_self.cc
+++ b/test/lsan/TestCases/pointer_to_self.cc
@@ -1,6 +1,6 @@
 // Regression test: pointers to self should not confuse LSan into thinking the
 // object is indirectly leaked. Only external pointers count.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %run %t 2>&1 | FileCheck %s
 
diff --git a/test/lsan/TestCases/print_suppressions.cc b/test/lsan/TestCases/print_suppressions.cc
index b292c0a7c3cf..1a252e442720 100644
--- a/test/lsan/TestCases/print_suppressions.cc
+++ b/test/lsan/TestCases/print_suppressions.cc
@@ -1,6 +1,6 @@
 // Print matched suppressions only if print_suppressions=1 AND at least one is
 // matched. Default is print_suppressions=true.
-// RUN: LSAN_BASE="use_registers=0:use_stacks=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_registers=0:use_stacks=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:print_suppressions=0 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-dont-print
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-dont-print
diff --git a/test/lsan/TestCases/recoverable_leak_check.cc b/test/lsan/TestCases/recoverable_leak_check.cc
index 0fe377f65af1..04686a561d76 100644
--- a/test/lsan/TestCases/recoverable_leak_check.cc
+++ b/test/lsan/TestCases/recoverable_leak_check.cc
@@ -1,5 +1,5 @@
 // Test for on-demand leak checking.
-// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t foo 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t 2>&1 | FileCheck %s
diff --git a/test/lsan/TestCases/register_root_region.cc b/test/lsan/TestCases/register_root_region.cc
index 6fc84c2fb50f..a63b0cc62cd0 100644
--- a/test/lsan/TestCases/register_root_region.cc
+++ b/test/lsan/TestCases/register_root_region.cc
@@ -1,5 +1,5 @@
 // Test for __lsan_(un)register_root_region().
-// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE %run %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t foo 2>&1 | FileCheck %s
diff --git a/test/lsan/TestCases/stale_stack_leak.cc b/test/lsan/TestCases/stale_stack_leak.cc
index 770096b08888..8f7ab9c1c0fa 100644
--- a/test/lsan/TestCases/stale_stack_leak.cc
+++ b/test/lsan/TestCases/stale_stack_leak.cc
@@ -1,8 +1,11 @@
 // Test that out-of-scope local variables are ignored by LSan.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0:use_stacks=1"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0:use_stacks=1"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE":exitcode=0" %run %t 2>&1 | FileCheck --check-prefix=CHECK-sanity %s
+//
+// x86 passes parameters through stack that may lead to false negatives
+// UNSUPPORTED: x86
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/test/lsan/TestCases/suppressions_default.cc b/test/lsan/TestCases/suppressions_default.cc
index b4c0de016cd1..6c0364e62c74 100644
--- a/test/lsan/TestCases/suppressions_default.cc
+++ b/test/lsan/TestCases/suppressions_default.cc
@@ -1,4 +1,4 @@
-// RUN: LSAN_BASE="use_registers=0:use_stacks=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_registers=0:use_stacks=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
 
diff --git a/test/lsan/TestCases/suppressions_file.cc b/test/lsan/TestCases/suppressions_file.cc
index 805091cba4c4..1d8a06474d64 100644
--- a/test/lsan/TestCases/suppressions_file.cc
+++ b/test/lsan/TestCases/suppressions_file.cc
@@ -1,4 +1,4 @@
-// RUN: LSAN_BASE="use_registers=0:use_stacks=0"
+// RUN: LSAN_BASE="detect_leaks=1:use_registers=0:use_stacks=0"
 // RUN: %clangxx_lsan %s -o %t
 
 // RUN: rm -f %t.supp
diff --git a/test/lsan/TestCases/swapcontext.cc b/test/lsan/TestCases/swapcontext.cc
index f7e95ed2ca5c..f990526cf668 100644
--- a/test/lsan/TestCases/swapcontext.cc
+++ b/test/lsan/TestCases/swapcontext.cc
@@ -2,8 +2,10 @@
 // memory. Make sure we don't report these leaks.
 
 // RUN: %clangxx_lsan %s -o %t
-// RUN: %run %t 2>&1
-// RUN: not %run %t foo 2>&1 | FileCheck %s
+// RUN: LSAN_BASE="detect_leaks=1"
+// RUN: LSAN_OPTIONS=$LSAN_BASE %run %t 2>&1
+// RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t foo 2>&1 | FileCheck %s
+// UNSUPPORTED: arm
 
 #include <stdio.h>
 #if defined(__APPLE__)
@@ -23,7 +25,7 @@ void Child() {
 }
 
 int main(int argc, char *argv[]) {
-  char stack_memory[kStackSize + 1];
+  char stack_memory[kStackSize + 1] __attribute__((aligned(16)));
   char *heap_memory = new char[kStackSize + 1];
   char *child_stack = (argc > 1) ? stack_memory : heap_memory;
 
diff --git a/test/lsan/TestCases/use_after_return.cc b/test/lsan/TestCases/use_after_return.cc
index ed9cc785f0f5..413775276b19 100644
--- a/test/lsan/TestCases/use_after_return.cc
+++ b/test/lsan/TestCases/use_after_return.cc
@@ -1,6 +1,6 @@
 // Test that fake stack (introduced by ASan's use-after-return mode) is included
 // in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0"
 // RUN: %clangxx_lsan %s -O2 -o %t
 // RUN: ASAN_OPTIONS=$ASAN_OPTIONS:detect_stack_use_after_return=1 LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %run %t 2>&1 | FileCheck %s
 // RUN: ASAN_OPTIONS=$ASAN_OPTIONS:detect_stack_use_after_return=1 LSAN_OPTIONS=$LSAN_BASE:"use_stacks=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_globals_initialized.cc b/test/lsan/TestCases/use_globals_initialized.cc
index 45c12dc4e120..996052d6e832 100644
--- a/test/lsan/TestCases/use_globals_initialized.cc
+++ b/test/lsan/TestCases/use_globals_initialized.cc
@@ -1,5 +1,5 @@
 // Test that initialized globals are included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_globals=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_globals=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_globals_uninitialized.cc b/test/lsan/TestCases/use_globals_uninitialized.cc
index c198fcc7cbbb..25ccacc7eff8 100644
--- a/test/lsan/TestCases/use_globals_uninitialized.cc
+++ b/test/lsan/TestCases/use_globals_uninitialized.cc
@@ -1,5 +1,5 @@
 // Test that uninitialized globals are included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_globals=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_globals=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_poisoned_asan.cc b/test/lsan/TestCases/use_poisoned_asan.cc
index 5acceeb8ce0a..d9ef16a4e1dd 100644
--- a/test/lsan/TestCases/use_poisoned_asan.cc
+++ b/test/lsan/TestCases/use_poisoned_asan.cc
@@ -1,6 +1,6 @@
 // ASan-poisoned memory should be ignored if use_poisoned is false.
 // REQUIRES: asan
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_poisoned=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_poisoned=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_registers.cc b/test/lsan/TestCases/use_registers.cc
index 7647679f4796..2fe13318efcb 100644
--- a/test/lsan/TestCases/use_registers.cc
+++ b/test/lsan/TestCases/use_registers.cc
@@ -1,5 +1,5 @@
 // Test that registers of running threads are included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0"
 // RUN: %clangxx_lsan -pthread %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_registers=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_registers=1" %run %t 2>&1
@@ -33,6 +33,11 @@ void *registers_thread_func(void *arg) {
       :
       : "r" (p)
       );
+#elif defined(__arm__)
+  asm ( "mov r5, %0"
+      :
+      : "r" (p)
+      );
 #else
 #error "Test is not supported on this architecture."
 #endif
diff --git a/test/lsan/TestCases/use_stacks.cc b/test/lsan/TestCases/use_stacks.cc
index c32af6841260..95a01003b0c0 100644
--- a/test/lsan/TestCases/use_stacks.cc
+++ b/test/lsan/TestCases/use_stacks.cc
@@ -1,5 +1,5 @@
 // Test that stack of main thread is included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_stacks_threaded.cc b/test/lsan/TestCases/use_stacks_threaded.cc
index ac1fb466fa03..310171feb03b 100644
--- a/test/lsan/TestCases/use_stacks_threaded.cc
+++ b/test/lsan/TestCases/use_stacks_threaded.cc
@@ -1,5 +1,5 @@
 // Test that stacks of non-main threads are included in the root set.
-// RUN: LSAN_BASE="report_objects=1:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_registers=0"
 // RUN: %clangxx_lsan -pthread %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=1" %run %t 2>&1
diff --git a/test/lsan/TestCases/use_unaligned.cc b/test/lsan/TestCases/use_unaligned.cc
index 86c3ed5200a3..1179c15b73bc 100644
--- a/test/lsan/TestCases/use_unaligned.cc
+++ b/test/lsan/TestCases/use_unaligned.cc
@@ -1,5 +1,5 @@
 // Test that unaligned pointers are detected correctly.
-// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: LSAN_BASE="detect_leaks=1:report_objects=1:use_stacks=0:use_registers=0"
 // RUN: %clangxx_lsan %s -o %t
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_unaligned=0" not %run %t 2>&1 | FileCheck %s
 // RUN: LSAN_OPTIONS=$LSAN_BASE:"use_unaligned=1" %run %t 2>&1
diff --git a/test/lsan/lit.common.cfg b/test/lsan/lit.common.cfg
index 8580eec33d28..b90c7ef4860f 100644
--- a/test/lsan/lit.common.cfg
+++ b/test/lsan/lit.common.cfg
@@ -3,6 +3,7 @@
 # Common configuration for running leak detection tests under LSan/ASan.
 
 import os
+import re
 
 import lit.util
 
@@ -51,8 +52,12 @@ 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 and mips64 Linux only.
-if config.host_os not in ['Linux'] or config.host_arch not in ['x86_64', 'mips64']:
+# LeakSanitizer tests are currently supported on x86-64 Linux, arm Linux and mips64 Linux only.
+if config.host_os not in ['Linux'] or config.host_arch not in ['x86_64', 'mips64', 'arm', 'armhf', 'armv7l']:
+  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']