Remove the hack where we sniff the __IPHONE_OS_VERSION_MIN_REQUIRED define.

We can use -mios-simulator-version-min now. rdar://10218700

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142311 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 51 deletions

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 825a83d8b8..12c263aad0 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -454,35 +454,6 @@ void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
   }
 }
 
-static inline StringRef SimulatorVersionDefineName() {
-  return "__IPHONE_OS_VERSION_MIN_REQUIRED";
-}
-
-/// \brief Parse the simulator version define:
-/// __IPHONE_OS_VERSION_MIN_REQUIRED=([0-9])([0-9][0-9])([0-9][0-9])
-// and return the grouped values as integers, e.g:
-//   __IPHONE_OS_VERSION_MIN_REQUIRED=40201
-// will return Major=4, Minor=2, Micro=1.
-static bool GetVersionFromSimulatorDefine(StringRef define,
-                                          unsigned &Major, unsigned &Minor,
-                                          unsigned &Micro) {
-  assert(define.startswith(SimulatorVersionDefineName()));
-  StringRef name, version;
-  llvm::tie(name, version) = define.split('=');
-  if (version.empty())
-    return false;
-  std::string verstr = version.str();
-  char *end;
-  unsigned num = (unsigned) strtol(verstr.c_str(), &end, 10);
-  if (*end != '\0')
-    return false;
-  Major = num / 10000;
-  num = num % 10000;
-  Minor = num / 100;
-  Micro = num % 100;
-  return true;
-}
-
 void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
   const OptTable &Opts = getDriver().getOpts();
 
@@ -491,28 +462,6 @@ void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
   Arg *iOSSimVersion = Args.getLastArg(
     options::OPT_mios_simulator_version_min_EQ);
 
-  // FIXME: HACK! When compiling for the simulator we don't get a
-  // '-miphoneos-version-min' to help us know whether there is an ARC runtime
-  // or not; try to parse a __IPHONE_OS_VERSION_MIN_REQUIRED
-  // define passed in command-line.
-  if (!iOSVersion) {
-    for (arg_iterator it = Args.filtered_begin(options::OPT_D),
-           ie = Args.filtered_end(); it != ie; ++it) {
-      StringRef define = (*it)->getValue(Args);
-      if (define.startswith(SimulatorVersionDefineName())) {
-        unsigned Major = 0, Minor = 0, Micro = 0;
-        if (GetVersionFromSimulatorDefine(define, Major, Minor, Micro) &&
-            Major < 10 && Minor < 100 && Micro < 100) {
-          ARCRuntimeForSimulator = Major < 5 ? ARCSimulator_NoARCRuntime
-                                             : ARCSimulator_HasARCRuntime;
-          LibCXXForSimulator = Major < 5 ? LibCXXSimulator_NotAvailable
-                                         : LibCXXSimulator_Available;
-        }
-        break;
-      }
-    }
-  }
-
   if (OSXVersion && (iOSVersion || iOSSimVersion)) {
     getDriver().Diag(diag::err_drv_argument_not_allowed_with)
           << OSXVersion->getAsString(Args)