Added LLIMCJITMemoryManager to the lli. This manager will be used for MCJIT instead...

[oota-llvm.git] / lib / ExecutionEngine / TargetSelect.cpp

diff --git a/lib/ExecutionEngine/TargetSelect.cpp b/lib/ExecutionEngine/TargetSelect.cpp
index 9a0d41d48e51b2c27644bcf75e1ce6dda1b812c8..d3f830e672d94715c7e5ef5d7c30a222ad5fc94f 100644 (file)
--- a/lib/ExecutionEngine/TargetSelect.cpp
+++ b/lib/ExecutionEngine/TargetSelect.cpp
@@ -7,9 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This just asks the TargetRegistry for the appropriate JIT to use, and allows
-// the user to specify a specific one on the commandline with -march=x. Clients
-// should initialize targets prior to calling createJIT.
+// This just asks the TargetRegistry for the appropriate target to use, and
+// allows the user to specify a specific one on the commandline with -march=x,
+// -mcpu=y, and -mattr=a,-b,+c. Clients should initialize targets prior to
+// calling selectTarget().
 //
 //===----------------------------------------------------------------------===//
 
@@ -21,20 +22,25 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/raw_ostream.h"
+
 using namespace llvm;
 
+TargetMachine *EngineBuilder::selectTarget() {
+  StringRef MArch = "";
+  StringRef MCPU = "";
+  SmallVector<std::string, 1> MAttrs;
+  Triple TT(M->getTargetTriple());
+
+  return selectTarget(TT, MArch, MCPU, MAttrs);
+}
+
 /// selectTarget - Pick a target either via -march or by guessing the native
 /// arch.  Add any CPU features specified via -mcpu or -mattr.
-TargetMachine *EngineBuilder::selectTarget(Module *Mod,
+TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
                               StringRef MArch,
                               StringRef MCPU,
-                              const SmallVectorImpl<std::string>& MAttrs,
-                              Reloc::Model RM,
-                              CodeModel::Model CM,
-                              CodeGenOpt::Level OL,
-                              std::string *ErrorStr) {
-  Triple TheTriple(Mod->getTargetTriple());
+                              const SmallVectorImpl<std::string>& MAttrs) {
+  Triple TheTriple(TargetTriple);
   if (TheTriple.getTriple().empty())
     TheTriple.setTriple(sys::getDefaultTargetTriple());
 
@@ -50,13 +56,14 @@ TargetMachine *EngineBuilder::selectTarget(Module *Mod,
     }
 
     if (!TheTarget) {
-      *ErrorStr = "No available targets are compatible with this -march, "
-        "see -version for the available targets.\n";
+      if (ErrorStr)
+        *ErrorStr = "No available targets are compatible with this -march, "
+                    "see -version for the available targets.\n";
       return 0;
     }
 
     // Adjust the triple to match (if known), otherwise stick with the
-    // module/host triple.
+    // requested/host triple.
     Triple::ArchType Type = Triple::getArchTypeForLLVMName(MArch);
     if (Type != Triple::UnknownArch)
       TheTriple.setArch(Type);
@@ -70,12 +77,6 @@ TargetMachine *EngineBuilder::selectTarget(Module *Mod,
     }
   }
 
-  if (!TheTarget->hasJIT()) {
-    errs() << "WARNING: This target JIT is not designed for the host you are"
-           << " running.  If bad things happen, please choose a different "
-           << "-march switch.\n";
-  }
-
   // Package up features to be passed to target/subtarget
   std::string FeaturesStr;
   if (!MAttrs.empty()) {
@@ -86,11 +87,11 @@ TargetMachine *EngineBuilder::selectTarget(Module *Mod,
   }
 
   // Allocate a target...
-  TargetOptions Options;
   TargetMachine *Target = TheTarget->createTargetMachine(TheTriple.getTriple(),
                                                          MCPU, FeaturesStr,
                                                          Options,
-                                                         RM, CM, OL);
+                                                         RelocModel, CMModel,
+                                                         OptLevel);
   assert(Target && "Could not allocate target machine!");
   return Target;
 }