Rename the GCC Objective-C runtime to gcc from gnu-fragile and the GNUstep
runtime to gnustep from gnu.  Fix EH for the GCC runtime.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159684 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/ObjCRuntime.h b/include/clang/Basic/ObjCRuntime.h
index 1be3b14..9212a8b 100644
--- a/include/clang/Basic/ObjCRuntime.h
+++ b/include/clang/Basic/ObjCRuntime.h
@@ -40,11 +40,12 @@
     /// version of iOS.
     iOS,
 
-    /// 'gnu' is the non-fragile GNU runtime.
-    GNU,
+    /// 'gcc' is the Objective-C runtime shipped with GCC, implementing a
+    /// fragile Objective-C ABI
+    GCC,
 
-    /// 'gnu-fragile' is the fragile GNU runtime.
-    FragileGNU
+    /// 'gnustep' is the modern non-fragile GNUstep runtime.
+   GNUstep 
   };
 
 private:
@@ -71,9 +72,9 @@
   bool isNonFragile() const {
     switch (getKind()) {
     case FragileMacOSX: return false;
-    case FragileGNU: return false;
+    case GCC: return false;
     case MacOSX: return true;
-    case GNU: return true;
+    case GNUstep: return true;
     case iOS: return true;
     }
     llvm_unreachable("bad kind");
@@ -83,15 +84,15 @@
   /// implied behaviors for a "fragile" ABI?
   bool isFragile() const { return !isNonFragile(); }
 
-  /// \brief Is this runtime basically of the GNU family of runtimes?
+  /// \brief Is this runtime basically of the GNUstep family of runtimes?
   bool isGNUFamily() const {
     switch (getKind()) {
     case FragileMacOSX:
     case MacOSX:
     case iOS:
       return false;
-    case FragileGNU:
-    case GNU:
+    case GCC:
+    case GNUstep:
       return true;
     }
     llvm_unreachable("bad kind");
@@ -118,8 +119,8 @@
     // This is really a lie, because some implementations and versions
     // of the runtime do not support ARC.  Probably -fgnu-runtime
     // should imply a "maximal" runtime or something?
-    case FragileGNU: return true;
-    case GNU: return true;
+    case GCC: return true;
+    case GNUstep: return true;
     }
     llvm_unreachable("bad kind");
   }
@@ -143,8 +144,8 @@
     // This is really a lie, because some implementations and versions
     // of the runtime do not support ARC.  Probably -fgnu-runtime
     // should imply a "maximal" runtime or something?
-    case FragileGNU: return true;
-    case GNU: return true;
+    case GCC: return true;
+    case GNUstep: return true;
     }
     llvm_unreachable("bad kind");
   }
@@ -158,8 +159,8 @@
     case FragileMacOSX: return getVersion() >= VersionTuple(10, 8);
     case MacOSX: return getVersion() >= VersionTuple(10, 8);
     case iOS: return getVersion() >= VersionTuple(5);
-    case FragileGNU: return false;
-    case GNU: return false;
+    case GCC: return false;
+    case GNUstep: return false;
     }
     llvm_unreachable("bad kind");
   }
@@ -170,8 +171,19 @@
     case MacOSX: return true;
     case iOS: return true;
     case FragileMacOSX: return false;
-    case FragileGNU: return false;
-    case GNU: return false;
+    case GCC: return true;
+    case GNUstep: return true;
+    }
+    llvm_unreachable("bad kind");
+  }
+  /// \brief Does this runtime use zero-cost exceptions?
+  bool hasUnwindExceptions() const {
+    switch (getKind()) {
+    case MacOSX: return true;
+    case iOS: return true;
+    case FragileMacOSX: return false;
+    case GCC: return true;
+    case GNUstep: return true;
     }
     llvm_unreachable("bad kind");
   }
diff --git a/lib/Basic/ObjCRuntime.cpp b/lib/Basic/ObjCRuntime.cpp
index d66da07..0f30bfa 100644
--- a/lib/Basic/ObjCRuntime.cpp
+++ b/lib/Basic/ObjCRuntime.cpp
@@ -30,8 +30,8 @@
   case ObjCRuntime::MacOSX: out << "macosx"; break;
   case ObjCRuntime::FragileMacOSX: out << "macosx-fragile"; break;
   case ObjCRuntime::iOS: out << "ios"; break;
-  case ObjCRuntime::GNU: out << "gnu"; break;
-  case ObjCRuntime::FragileGNU: out << "gnu-fragile"; break;
+  case ObjCRuntime::GNUstep: out << "gnustep"; break;
+  case ObjCRuntime::GCC: out << "gcc"; break;
   }
   if (value.getVersion() > VersionTuple(0)) {
     out << '-' << value.getVersion();
@@ -60,10 +60,10 @@
     kind = ObjCRuntime::FragileMacOSX;
   } else if (runtimeName == "ios") {
     kind = ObjCRuntime::iOS;
-  } else if (runtimeName == "gnu") {
-    kind = ObjCRuntime::GNU;
-  } else if (runtimeName == "gnu-fragile") {
-    kind = ObjCRuntime::FragileGNU;
+  } else if (runtimeName == "gnustep") {
+    kind = ObjCRuntime::GNUstep;
+  } else if (runtimeName == "gcc") {
+    kind = ObjCRuntime::GCC;
   } else {
     return true;
   }
diff --git a/lib/CodeGen/CGException.cpp b/lib/CodeGen/CGException.cpp
index fb36715..2fdc74c 100644
--- a/lib/CodeGen/CGException.cpp
+++ b/lib/CodeGen/CGException.cpp
@@ -186,8 +186,8 @@
   case ObjCRuntime::MacOSX:
   case ObjCRuntime::iOS:
     return EHPersonality::NeXT_ObjC;
-  case ObjCRuntime::GNU:
-  case ObjCRuntime::FragileGNU:
+  case ObjCRuntime::GNUstep:
+  case ObjCRuntime::GCC:
     return EHPersonality::GNU_ObjC;
   }
   llvm_unreachable("bad runtime kind");
@@ -216,10 +216,11 @@
   case ObjCRuntime::FragileMacOSX:
     return getCXXPersonality(L);
 
-  // The GNU runtime's personality function inherently doesn't support
+  // The GCC runtime's personality function inherently doesn't support
   // mixed EH.  Use the C++ personality just to avoid returning null.
-  case ObjCRuntime::GNU:
-  case ObjCRuntime::FragileGNU:
+  case ObjCRuntime::GCC:
+    return EHPersonality::GNU_ObjC;
+  case ObjCRuntime::GNUstep:
     return EHPersonality::GNU_ObjCXX;
   }
   llvm_unreachable("bad runtime kind");
diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index a949436..686fb05 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -2666,10 +2666,10 @@
 CGObjCRuntime *
 clang::CodeGen::CreateGNUObjCRuntime(CodeGenModule &CGM) {
   switch (CGM.getLangOpts().ObjCRuntime.getKind()) {
-  case ObjCRuntime::GNU:
+  case ObjCRuntime::GNUstep:
     return new CGObjCGNUstep(CGM);
 
-  case ObjCRuntime::FragileGNU:
+  case ObjCRuntime::GCC:
     return new CGObjCGCC(CGM);
 
   case ObjCRuntime::FragileMacOSX:
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 3eb5d52..3b7c238 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -6389,8 +6389,8 @@
   case ObjCRuntime::iOS:
     return new CGObjCNonFragileABIMac(CGM);
 
-  case ObjCRuntime::GNU:
-  case ObjCRuntime::FragileGNU:
+  case ObjCRuntime::GNUstep:
+  case ObjCRuntime::GCC:
     llvm_unreachable("these runtimes are not Mac runtimes");
   }
   llvm_unreachable("bad runtime");
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index ef20cf4..bba3e7c 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -138,8 +138,8 @@
   // This is just isGNUFamily(), but we want to force implementors of
   // new ABIs to decide how best to do this.
   switch (LangOpts.ObjCRuntime.getKind()) {
-  case ObjCRuntime::GNU:
-  case ObjCRuntime::FragileGNU:
+  case ObjCRuntime::GNUstep:
+  case ObjCRuntime::GCC:
     ObjCRuntime = CreateGNUObjCRuntime(*this);
     return;
 
@@ -546,7 +546,7 @@
 
   // If ObjC exceptions are enabled, this depends on the ABI.
   if (LangOpts.ObjCExceptions) {
-    if (LangOpts.ObjCRuntime.isFragile()) return false;
+    return LangOpts.ObjCRuntime.hasUnwindExceptions();
   }
 
   return true;
diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
index 21aefb6..48ed044 100644
--- a/lib/Driver/ToolChain.cpp
+++ b/lib/Driver/ToolChain.cpp
@@ -50,7 +50,7 @@
 }
 
 ObjCRuntime ToolChain::getDefaultObjCRuntime(bool isNonFragile) const {
-  return ObjCRuntime(isNonFragile ? ObjCRuntime::GNU : ObjCRuntime::FragileGNU,
+  return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
                      VersionTuple());
 }
 
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 601ea54..01792ae 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -2934,7 +2934,7 @@
   // -fgnu-runtime
   } else {
     assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime));
-    runtime = ObjCRuntime(ObjCRuntime::GNU, VersionTuple());
+    runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
   }
 
   cmdArgs.push_back(args.MakeArgString(
diff --git a/test/CodeGenObjC/bitfield-gnu.m b/test/CodeGenObjC/bitfield-gnu.m
index 19c5cc4..383907f 100644
--- a/test/CodeGenObjC/bitfield-gnu.m
+++ b/test/CodeGenObjC/bitfield-gnu.m
@@ -1,4 +1,4 @@
-// RUN: %clang -S -emit-llvm -fobjc-runtime=gnu -o %t %s
+// RUN: %clang -S -emit-llvm -fobjc-runtime=gcc -o %t %s
 typedef enum { A1, A2 } A;
 typedef struct { A a : 1; } B;
 @interface Obj { B *b; } @end
diff --git a/test/CodeGenObjC/bitfield_encoding.m b/test/CodeGenObjC/bitfield_encoding.m
index 0f26bcf..1a516aa 100644
--- a/test/CodeGenObjC/bitfield_encoding.m
+++ b/test/CodeGenObjC/bitfield_encoding.m
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o %t %s
 // RUN: grep "ib1b14" %t | count 1
-// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-runtime=macosx-fragile-10.5 -fobjc-runtime=gnu -emit-llvm -o %t %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-runtime=macosx-fragile-10.5 -fobjc-runtime=gcc -emit-llvm -o %t %s
 // RUN: grep "ib32i1b33i14" %t | count 1
 
 struct foo{
diff --git a/test/CodeGenObjC/constant-strings.m b/test/CodeGenObjC/constant-strings.m
index 7d7f240..cad634a 100644
--- a/test/CodeGenObjC/constant-strings.m
+++ b/test/CodeGenObjC/constant-strings.m
@@ -5,11 +5,11 @@
 //
 // CHECK-NEXT: @.str = {{.*}}constant [13 x i8] c"Hello World!\00", align 1
 
-// RUN: %clang_cc1 -fobjc-runtime=gnu -emit-llvm -o %t %s
+// RUN: %clang_cc1 -fobjc-runtime=gcc -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix=CHECK-GNU < %t %s
 // CHECK-GNU: NXConstantString
 
-// RUN: %clang_cc1 -fobjc-runtime=gnu -fconstant-string-class NSConstantString -emit-llvm -o %t %s
+// RUN: %clang_cc1 -fobjc-runtime=gcc -fconstant-string-class NSConstantString -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix=CHECK-GNU-WITH-CLASS < %t %s
 // CHECK-GNU-WITH-CLASS: NSConstantString
 id a = @"Hello World!";
diff --git a/test/CodeGenObjC/gnu-exceptions.m b/test/CodeGenObjC/gnu-exceptions.m
index 0d8f7e6..141747e 100644
--- a/test/CodeGenObjC/gnu-exceptions.m
+++ b/test/CodeGenObjC/gnu-exceptions.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -fexceptions -fobjc-exceptions -fobjc-runtime=gnu -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -fexceptions -fobjc-exceptions -fobjc-runtime=gcc -o - %s | FileCheck %s
 
 void opaque(void);
 void log(int i);
diff --git a/test/CodeGenObjC/messages.m b/test/CodeGenObjC/messages.m
index 2dadec4..a42677e 100644
--- a/test/CodeGenObjC/messages.m
+++ b/test/CodeGenObjC/messages.m
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-MAC
 // RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-MAC-NF
-// RUN: %clang_cc1 -fobjc-runtime=gnu-fragile -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-GNU
-// RUN: %clang_cc1 -fobjc-runtime=gnu -emit-llvm -o - %s | FileCheck %s -check-prefix CHECK-GNU-NF
+// RUN: %clang_cc1 -fobjc-runtime=gcc -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-GNU
+// RUN: %clang_cc1 -fobjc-runtime=gnustep -emit-llvm -o - %s | FileCheck %s -check-prefix CHECK-GNU-NF
 
 typedef struct {
   int x;
diff --git a/test/CodeGenObjC/undefined-protocol.m b/test/CodeGenObjC/undefined-protocol.m
index d998a66..e5a72ab 100644
--- a/test/CodeGenObjC/undefined-protocol.m
+++ b/test/CodeGenObjC/undefined-protocol.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -emit-llvm-only -fobjc-runtime=gnu %s
+// RUN: %clang_cc1 -emit-llvm-only -fobjc-runtime=gcc %s
 
 @protocol MadeUpProtocol;
 
diff --git a/test/Coverage/codegen-gnu.m b/test/Coverage/codegen-gnu.m
index 5408213..67f9906 100644
--- a/test/Coverage/codegen-gnu.m
+++ b/test/Coverage/codegen-gnu.m
@@ -1,3 +1,3 @@
-// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-exceptions -fobjc-runtime=gnu -emit-llvm -o %t %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-exceptions -fobjc-runtime=gcc -emit-llvm -o %t %s
 
 #include "objc-language-features.inc"
diff --git a/test/Driver/gnu-runtime.m b/test/Driver/gnu-runtime.m
index 7685cc6..1d7a40a 100644
--- a/test/Driver/gnu-runtime.m
+++ b/test/Driver/gnu-runtime.m
@@ -1,4 +1,4 @@
 // RUN: %clang -target i386-apple-darwin10 -### -fsyntax-only -fgnu-runtime %s 2>&1 | FileCheck %s
 // RUN: %clang -target i386-apple-darwin10 -### -x objective-c++ -fsyntax-only -fgnu-runtime %s 2>&1 | FileCheck %s
-// CHECK: -fobjc-runtime=gnu
+// CHECK: -fobjc-runtime=gcc
 // CHECK-NOT: fragile
diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index 8e08e23..9694aad 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -85,7 +85,7 @@
 // C94:#define __STDC_VERSION__ 199409L
 //
 // 
-// RUN: %clang_cc1 -fms-extensions -triple i686-pc-win32 -fobjc-runtime=gnu-fragile -E -dM < /dev/null | FileCheck -check-prefix MSEXT %s
+// RUN: %clang_cc1 -fms-extensions -triple i686-pc-win32 -fobjc-runtime=gcc -E -dM < /dev/null | FileCheck -check-prefix MSEXT %s
 //
 // MSEXT-NOT:#define __STDC__
 // MSEXT:#define _INTEGRAL_MAX_BITS 64
@@ -1872,7 +1872,7 @@
 // X86_64-LINUX:#define __x86_64 1
 // X86_64-LINUX:#define __x86_64__ 1
 //
-// RUN: %clang_cc1 -x c++ -triple i686-pc-linux-gnu -fobjc-runtime=gnu-fragile -E -dM < /dev/null | FileCheck -check-prefix GNUSOURCE %s
+// RUN: %clang_cc1 -x c++ -triple i686-pc-linux-gnu -fobjc-runtime=gcc -E -dM < /dev/null | FileCheck -check-prefix GNUSOURCE %s
 // GNUSOURCE:#define _GNU_SOURCE 1
 // 
 // RUN: %clang_cc1 -x c++ -std=c++98 -fno-rtti -E -dM < /dev/null | FileCheck -check-prefix NORTTI %s
diff --git a/test/Preprocessor/non_fragile_feature1.m b/test/Preprocessor/non_fragile_feature1.m
index 7bd6a94..6ea7fa8 100644
--- a/test/Preprocessor/non_fragile_feature1.m
+++ b/test/Preprocessor/non_fragile_feature1.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-runtime=gnu-fragile %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -fobjc-runtime=gcc %s
 #ifndef __has_feature
 #error Should have __has_feature
 #endif