Forward substitute some constants into their users

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15693 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 95a4498903443008b6095f5febd5a0b2e8afebbf..10ffa68b2ef2217e6e6428970b19352cde82a5b2 100644 (file)
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -319,8 +319,6 @@ static unsigned
 ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
                            unsigned &maxOptionalNumArgs)
 {
-  const TargetFrameInfo &frameInfo = *target.getFrameInfo();
-  
   unsigned maxSize = 0;
   
   for (Function::const_iterator BB = F->begin(), BBE = F->end(); BB !=BBE; ++BB)
@@ -328,7 +326,7 @@ ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
       if (const CallInst *callInst = dyn_cast<CallInst>(I))
         {
           unsigned numOperands = callInst->getNumOperands() - 1;
-          int numExtra = (int)numOperands-frameInfo.getNumFixedOutgoingArgs();
+          int numExtra = numOperands-6;
           if (numExtra <= 0)
             continue;
           
@@ -370,8 +368,7 @@ void MachineFunctionInfo::CalculateArgSize() {
   maxOptionalArgsSize = ComputeMaxOptionalArgsSize(MF.getTarget(),
                                                   MF.getFunction(),
                                                    maxOptionalNumArgs);
-  staticStackSize = maxOptionalArgsSize
-    + MF.getTarget().getFrameInfo()->getMinStackFrameSize();
+  staticStackSize = maxOptionalArgsSize + 176;
 }
 
 int