diff --git a/lldb/packages/Python/lldbsuite/test/decorators.py b/lldb/packages/Python/lldbsuite/test/decorators.py
--- a/lldb/packages/Python/lldbsuite/test/decorators.py
+++ b/lldb/packages/Python/lldbsuite/test/decorators.py
@@ -551,16 +551,16 @@
     return skipTestIfFn(is_ios_simulator)(func)
 
 def skipIfiOS(func):
-    return skipIfPlatform(["ios"])(func)
+    return skipIfPlatform(lldbplatform.translate(lldbplatform.ios))(func)
 
 def skipIftvOS(func):
-    return skipIfPlatform(["tvos"])(func)
+    return skipIfPlatform(lldbplatform.translate(lldbplatform.tvos))(func)
 
 def skipIfwatchOS(func):
-    return skipIfPlatform(["watchos"])(func)
+    return skipIfPlatform(lldbplatform.translate(lldbplatform.watchos))(func)
 
 def skipIfbridgeOS(func):
-    return skipIfPlatform(["bridgeos"])(func)
+    return skipIfPlatform(lldbplatform.translate(lldbplatform.bridgeos))(func)
 
 def skipIfDarwinEmbedded(func):
     """Decorate the item to skip tests that should be skipped on Darwin armv7/arm64 targets."""
@@ -568,6 +568,12 @@
         lldbplatform.translate(
             lldbplatform.darwin_embedded))(func)
 
+def skipIfDarwinSimulator(func):
+    """Decorate the item to skip tests that should be skipped on Darwin simulator targets."""
+    return skipIfPlatform(
+        lldbplatform.translate(
+            lldbplatform.darwin_simulator))(func)
+
 def skipIfFreeBSD(func):
     """Decorate the item to skip tests that should be skipped on FreeBSD."""
     return skipIfPlatform(["freebsd"])(func)
diff --git a/lldb/packages/Python/lldbsuite/test/lldbplatform.py b/lldb/packages/Python/lldbsuite/test/lldbplatform.py
--- a/lldb/packages/Python/lldbsuite/test/lldbplatform.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbplatform.py
@@ -11,20 +11,25 @@
 # LLDB modules
 import lldb
 
-windows, linux, macosx, darwin, ios, tvos, watchos, bridgeos, darwin_all, darwin_embedded, freebsd, netbsd, bsd_all, android = range(
-    14)
+windows, linux, macosx, darwin, ios, tvos, watchos, bridgeos, darwin_all, \
+    darwin_embedded, darwin_simulator, freebsd, netbsd, bsd_all, android \
+    = range(15)
+
+__darwin_embedded = ["ios", "tvos", "watchos", "bridgeos"]
+__darwin_simulators = ["iphonesimulator", "watchsimulator", "appletvsimulator"]
 
 __name_lookup = {
     windows: ["windows"],
     linux: ["linux"],
     macosx: ["macosx"],
     darwin: ["darwin"],
-    ios: ["ios"],
-    tvos: ["tvos"],
-    watchos: ["watchos"],
+    ios: ["ios", "iphonesimulator"],
+    tvos: ["tvos", "appletvsimulator"],
+    watchos: ["watchos", "watchsimulator"],
     bridgeos: ["bridgeos"],
-    darwin_all: ["macosx", "darwin", "ios", "tvos", "watchos", "bridgeos"],
-    darwin_embedded: ["ios", "tvos", "watchos", "bridgeos"],
+    darwin_all: ["macosx", "darwin"] + __darwin_embedded + __darwin_simulators,
+    darwin_embedded: __darwin_embedded + __darwin_simulators,
+    darwin_simulator: __darwin_simulators,
     freebsd: ["freebsd"],
     netbsd: ["netbsd"],
     bsd_all: ["freebsd", "netbsd"],
diff --git a/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py b/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
--- a/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbplatformutil.py
@@ -124,8 +124,7 @@
 
 
 def getDarwinOSTriples():
-    return ['darwin', 'macosx', 'ios', 'watchos', 'tvos', 'bridgeos']
-
+    return lldbplatform.translate(lldbplatform.darwin_all)
 
 def getPlatform():
     """Returns the target platform which the tests are running on."""