[Sanitizer] iOS: Pull up parallelism_group handling into common.lit.config

Serial execution on iOS devices is not specific to sanitizers. We want
to throttle all on-device tests. Pull the setting of the
parallelism_group up into the common lit configuration file.

Rename `darwin-ios-device-sanitizer` to `ios-device`. This group is not
specific to sanitizers and (theoretically) independent from the host OS.

Note that we don't support running unit tests on-device (there are no
configurations generated for that). If that ever changes, we also need
this configuration in `unittests/lit.common.unit.cfg`.

Reviewers: delcypher

Differential Revision: https://reviews.llvm.org/D58209

llvm-svn: 354179

compiler-rt/test/asan/lit.cfg

@@ -223,5 +223,3 @@ if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'SunOS', 'Windows', 'Net
 if config.host_os == 'Darwin':
   if config.target_arch in ["x86_64", "x86_64h"]:
     config.parallelism_group = "darwin-64bit-sanitizer"
-  elif config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
-    config.parallelism_group = "darwin-ios-device-sanitizer"

compiler-rt/test/fuzzer/lit.cfg

@@ -129,5 +129,3 @@ config.substitutions.append(('%env_asan_opts=',
 if config.host_os == 'Darwin':
   if config.target_arch in ["x86_64", "x86_64h"]:
     config.parallelism_group = "darwin-64bit-sanitizer"
-  elif config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
-    config.parallelism_group = "darwin-ios-device-sanitizer"

compiler-rt/test/lit.common.cfg

@@ -407,12 +407,11 @@ if platform.system() == 'Windows':
 if platform.system() == 'Darwin':
   lit_config.parallelism_groups["darwin-64bit-sanitizer"] = 3
 
-# The current implementation of the tools in sanitizer_common/ios_comamnds
-# do not support parallel execution so force sequential execution of the
-# tests on iOS devices.
+# Force sequential execution when running tests on iOS devices.
 if config.host_os == 'Darwin' and config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
   lit_config.warning("iOS device test cases being run sequentially")
-  lit_config.parallelism_groups["darwin-ios-device-sanitizer"] = 1
+  lit_config.parallelism_groups["ios-device"] = 1
+  config.parallelism_group = "ios-device"
 
 # Multiple substitutions are necessary to support multiple shared objects used
 # at once.

compiler-rt/test/sanitizer_common/lit.common.cfg

@@ -74,5 +74,3 @@ if config.host_os not in ['Linux', 'Darwin', 'NetBSD', 'FreeBSD']:
 if config.host_os == 'Darwin':
   if config.target_arch in ["x86_64", "x86_64h"]:
     config.parallelism_group = "darwin-64bit-sanitizer"
-  elif config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
-    config.parallelism_group = "darwin-ios-device-sanitizer"

compiler-rt/test/tsan/lit.cfg

@@ -88,5 +88,3 @@ if config.android:
 if config.host_os == 'Darwin':
   if config.target_arch in ["x86_64", "x86_64h"]:
     config.parallelism_group = "darwin-64bit-sanitizer"
-  elif config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
-    config.parallelism_group = "darwin-ios-device-sanitizer"

compiler-rt/test/ubsan/lit.common.cfg

@@ -74,8 +74,3 @@ if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'Windows', 'NetBSD', 'Su
 config.available_features.add('arch=' + config.target_arch)
 
 config.excludes = ['Inputs']
-
-# Limit parallelism if necessary
-if config.host_os == 'Darwin':
-  if config.apple_platform != "osx" and not config.apple_platform.endswith("sim"):
-    config.parallelism_group = "darwin-ios-device-sanitizer"