enable the branch folding pass for the JIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31777 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index ae13625c20529382bad919dafa869dc69a2cbb9e..f113b16f2640319a7cb6c717ad76e1916db39595 100644 (file)
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -147,6 +147,9 @@ bool LLVMTargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
   if (PrintMachineCode)  // Print the register-allocated code
     PM.add(createMachineFunctionPrinterPass(&std::cerr));
   
+  // Branch folding must be run after regalloc and prolog/epilog insertion.
+  if (!Fast)
+    PM.add(createBranchFoldingPass());
   
   if (addPreEmitPass(PM, Fast) && PrintMachineCode)
     PM.add(createMachineFunctionPrinterPass(&std::cerr));