Add infrastructure for skipping tests in GC stress mode.

Also move the GC stress configuration from the buildbot to the test runner.

BUG=
R=jkummerow@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/141653008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18708 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/allocation-site-info.js

@@ -35,11 +35,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 // support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 support_smi_only_arrays = true;
 

test/mjsunit/array-constructor-feedback.js

@@ -35,11 +35,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 // support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 support_smi_only_arrays = true;
 

test/mjsunit/array-feedback.js

@@ -35,11 +35,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 // support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 support_smi_only_arrays = true;
 

test/mjsunit/array-literal-feedback.js

@@ -35,11 +35,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 // support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 support_smi_only_arrays = true;
 

test/mjsunit/d8-performance-now.js

@@ -30,11 +30,6 @@
 // Test the performance.now() function of d8.  This test only makes sense with
 // d8.
 
-// Don't run this test in gc stress mode. Time differences may be long
-// due to garbage collections.
-%SetFlags("--gc-interval=-1");
-%SetFlags("--nostress-compaction");
-
 if (this.performance && performance.now) {
   (function run() {
     var start_test = performance.now();

test/mjsunit/elements-kind.js

@@ -25,8 +25,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax --smi-only-arrays --expose-gc
-// Flags: --nostress-opt --nostress-compaction --gc-interval=-1
+// Flags: --allow-natives-syntax --smi-only-arrays --expose-gc --nostress-opt
 
 // Test element kind of objects.
 // Since --smi-only-arrays affects builtins, its default setting at compile

test/mjsunit/fast-prototype.js

@@ -26,11 +26,6 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --allow-natives-syntax --expose-gc
-
-// TODO(mstarzinger): This test does not succeed when GCs happen in
-// between prototype transitions, we disable GC stress for now.
-%SetFlags("--gc-interval=-1")
-
 // Flags: --noincremental-marking
 
 // Check that objects that are used for prototypes are in the fast mode.

test/mjsunit/mjsunit.status

@@ -104,14 +104,24 @@
   # Tests verifying CHECK and ASSERT.
   'verify-check-false': [FAIL, NO_VARIANTS],
   'verify-assert-false': [NO_VARIANTS, ['mode == release', PASS], ['mode == debug', FAIL]],
-
-  # TODO(machenbach): Temporarily marked as flaky until there is infrastructure
-  # to disable these tests on GC stress.
-  'elements-kind': [PASS, ['mode == debug and system == linux', FLAKY]],
-  'osr-elements-kind': [PASS, ['mode == debug and system == linux', FLAKY]],
-  'array-literal-feedback': [PASS, ['mode == debug and system == linux', FLAKY]],
 }],  # ALWAYS
 
+##############################################################################
+['gc_stress == True', {
+  # Skip tests not suitable for GC stress.
+  'allocation-site-info': [SKIP],
+  'array-constructor-feedback': [SKIP],
+  'array-feedback': [SKIP],
+  'array-literal-feedback': [SKIP],
+  'd8-performance-now': [SKIP],
+  'elements-kind': [SKIP],
+  'fast-prototype': [SKIP],
+  'opt-elements-kind': [SKIP],
+  'osr-elements-kind': [SKIP],
+  'regress/regress-165637': [SKIP],
+  'regress/regress-2249': [SKIP],
+}],  # 'gc_stress == True'
+
 ##############################################################################
 ['arch == arm or arch == android_arm', {
 

test/mjsunit/opt-elements-kind.js

@@ -39,11 +39,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 
 if (support_smi_only_arrays) {

test/mjsunit/osr-elements-kind.js

@@ -39,11 +39,6 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-// Reset the GC stress mode to be off. Needed because AllocationMementos only
-// live for one gc, so a gc that happens in certain fragile areas of the test
-// can break assumptions.
-%SetFlags("--gc-interval=-1")
-
 support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 
 if (support_smi_only_arrays) {

test/mjsunit/regress/regress-165637.js

@@ -45,10 +45,6 @@ function do_slices() {
   return Date.now() - start;
 }
 
-// Reset the GC stress mode to be off. Needed so that the runtime of this test
-// stays within bounds even if we run in GC stress mode.
-%SetFlags("--gc-interval=-1 --noforce-marking-deque-overflows");
-
 // Should never take more than 3 seconds (if the bug is fixed, the test takes
 // considerably less time than 3 seconds).
 assertTrue(do_slices() < (3 * 1000));

tools/run-deopt-fuzzer.py

@@ -363,12 +363,13 @@ def Execute(arch, mode, args, options, suites, workspace):
 
   # Find available test suites and read test cases from them.
   variables = {
-    "mode": mode,
     "arch": arch,
-    "system": utils.GuessOS(),
-    "isolates": options.isolates,
     "deopt_fuzzer": True,
+    "gc_stress": False,
+    "isolates": options.isolates,
+    "mode": mode,
     "no_i18n": False,
+    "system": utils.GuessOS(),
   }
   all_tests = []
   num_tests = 0

tools/run-tests.py

@@ -68,6 +68,11 @@ MODE_FLAGS = {
     "release" : ["--nobreak-on-abort", "--nodead-code-elimination",
                  "--nofold-constants"]}
 
+GC_STRESS_FLAGS = ["--gc-interval=500", "--stress-compaction",
+                   "--concurrent-recompilation-queue-length=64",
+                   "--concurrent-recompilation-delay=500",
+                   "--concurrent-recompilation"]
+
 SUPPORTED_ARCHS = ["android_arm",
                    "android_ia32",
                    "arm",
@@ -108,6 +113,9 @@ def BuildOptions():
   result.add_option("--pass-fail-tests",
                     help="Regard pass|fail tests (run|skip|dontcare)",
                     default="dontcare")
+  result.add_option("--gc-stress",
+                    help="Switch on GC stress mode",
+                    default=False, action="store_true")
   result.add_option("--command-prefix",
                     help="Prepended to each shell command used to run a test",
                     default="")
@@ -220,6 +228,10 @@ def ProcessOptions(options):
     options.no_network = True
   options.command_prefix = shlex.split(options.command_prefix)
   options.extra_flags = shlex.split(options.extra_flags)
+
+  if options.gc_stress:
+    options.extra_flags += GC_STRESS_FLAGS
+
   if options.j == 0:
     options.j = multiprocessing.cpu_count()
 
@@ -373,12 +385,13 @@ def Execute(arch, mode, args, options, suites, workspace):
 
   # Find available test suites and read test cases from them.
   variables = {
-    "mode": mode,
     "arch": arch,
-    "system": utils.GuessOS(),
-    "isolates": options.isolates,
     "deopt_fuzzer": False,
+    "gc_stress": options.gc_stress,
+    "isolates": options.isolates,
+    "mode": mode,
     "no_i18n": options.no_i18n,
+    "system": utils.GuessOS(),
   }
   all_tests = []
   num_tests = 0