X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FExecutionEngine%2FTargetSelect.cpp;h=b10d51f648628866bd917c8f658828ba008ad1cc;hb=487ecab8d41e70700ca27895127b99f955e31fd0;hp=4e52a98c332bf9a254eaa5b20db534c48acf4937;hpb=e1fd317a4c92d16b619bb01fcbcf8d031d28cf36;p=oota-llvm.git

diff --git a/lib/ExecutionEngine/TargetSelect.cpp b/lib/ExecutionEngine/TargetSelect.cpp
index 4e52a98c332..b10d51f6486 100644
--- a/lib/ExecutionEngine/TargetSelect.cpp
+++ b/lib/ExecutionEngine/TargetSelect.cpp
@@ -16,8 +16,8 @@
 
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
 #include "llvm/ADT/Triple.h"
+#include "llvm/IR/Module.h"
 #include "llvm/MC/SubtargetFeature.h"
-#include "llvm/Module.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/TargetRegistry.h"
@@ -32,18 +32,7 @@ TargetMachine *EngineBuilder::selectTarget() {
   // must use the host architecture.
   if (UseMCJIT && WhichEngine != EngineKind::Interpreter && M)
     TT.setTriple(M->getTargetTriple());
-  else {
-    TT.setTriple(LLVM_HOSTTRIPLE);
-#if defined(__APPLE__)
-#if defined(__LP64__)
-    if (TT.isArch32Bit())
-      TT = TT.get64BitArchVariant();
-#else
-    if (TT.isArch64Bit())
-      TT = TT.get32BitArchVariant();
-#endif
-#endif // APPLE
-  }
+
   return selectTarget(TT, MArch, MCPU, MAttrs);
 }
 
@@ -55,10 +44,10 @@ TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
                               const SmallVectorImpl<std::string>& MAttrs) {
   Triple TheTriple(TargetTriple);
   if (TheTriple.getTriple().empty())
-    TheTriple.setTriple(sys::getDefaultTargetTriple());
+    TheTriple.setTriple(sys::getProcessTriple());
 
   // Adjust the triple to match what the user requested.
-  const Target *TheTarget = 0;
+  const Target *TheTarget = nullptr;
   if (!MArch.empty()) {
     for (TargetRegistry::iterator it = TargetRegistry::begin(),
            ie = TargetRegistry::end(); it != ie; ++it) {
@@ -72,7 +61,7 @@ TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
       if (ErrorStr)
         *ErrorStr = "No available targets are compatible with this -march, "
                     "see -version for the available targets.\n";
-      return 0;
+      return nullptr;
     }
 
     // Adjust the triple to match (if known), otherwise stick with the
@@ -83,10 +72,10 @@ TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
   } else {
     std::string Error;
     TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Error);
-    if (TheTarget == 0) {
+    if (!TheTarget) {
       if (ErrorStr)
         *ErrorStr = Error;
-      return 0;
+      return nullptr;
     }
   }
 
@@ -99,6 +88,14 @@ TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
     FeaturesStr = Features.getString();
   }
 
+  // FIXME: non-iOS ARM FastISel is broken with MCJIT.
+  if (UseMCJIT &&
+      TheTriple.getArch() == Triple::arm &&
+      !TheTriple.isiOS() &&
+      OptLevel == CodeGenOpt::None) {
+    OptLevel = CodeGenOpt::Less;
+  }
+
   // Allocate a target...
   TargetMachine *Target = TheTarget->createTargetMachine(TheTriple.getTriple(),
                                                          MCPU, FeaturesStr,