r339305 - Added another optimization pass to make vectorizing possible

[Emmett Neyman via cfe-commits]

Author: emmettneyman
Date: Wed Aug  8 17:58:23 2018
New Revision: 339305

URL: http://llvm.org/viewvc/llvm-project?rev=339305&view=rev
Log:
Added another optimization pass to make vectorizing possible

Summary: I noticed that my code wasn't going deep into the loop vectorizer code so added another pass that makes it go further.

Reviewers: morehouse, kcc

Reviewed By: morehouse

Subscribers: cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D50482

Modified:
    cfe/trunk/tools/clang-fuzzer/handle-llvm/handle_llvm.cpp

Modified: cfe/trunk/tools/clang-fuzzer/handle-llvm/handle_llvm.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/clang-fuzzer/handle-llvm/handle_llvm.cpp?rev=339305&r1=339304&r2=339305&view=diff
==============================================================================
--- cfe/trunk/tools/clang-fuzzer/handle-llvm/handle_llvm.cpp (original)
+++ cfe/trunk/tools/clang-fuzzer/handle-llvm/handle_llvm.cpp Wed Aug  8 17:58:23 2018
@@ -100,17 +100,29 @@ static std::string OptLLVM(const std::st
   if (!M || verifyModule(*M, &errs()))
     ErrorAndExit("Could not parse IR");
 
+  Triple ModuleTriple(M->getTargetTriple());
+  const TargetOptions Options = InitTargetOptionsFromCodeGenFlags();
+  std::string E;
+  const Target *TheTarget = TargetRegistry::lookupTarget(MArch, ModuleTriple, E);
+  TargetMachine *Machine =
+      TheTarget->createTargetMachine(M->getTargetTriple(), getCPUStr(),
+                                     getFeaturesStr(), Options, getRelocModel(),
+                                     getCodeModel(), OLvl);
+  std::unique_ptr<TargetMachine> TM(Machine);
   setFunctionAttributes(getCPUStr(), getFeaturesStr(), *M);
-  
+
   legacy::PassManager Passes;
-  Triple ModuleTriple(M->getTargetTriple());
   
   Passes.add(new TargetLibraryInfoWrapperPass(ModuleTriple));
-  Passes.add(createTargetTransformInfoWrapperPass(TargetIRAnalysis()));
+  Passes.add(createTargetTransformInfoWrapperPass(TM->getTargetIRAnalysis()));
+
+  LLVMTargetMachine &LTM = static_cast<LLVMTargetMachine &>(*TM);
+  Passes.add(LTM.createPassConfig(Passes));
+
   Passes.add(createVerifierPass());
 
   AddOptimizationPasses(Passes, OLvl, 0);
-  
+
   // Add a pass that writes the optimized IR to an output stream
   std::string outString;
   raw_string_ostream OS(outString);