Move the inline cost analysis's primary cost query to TTI instead of the

old CodeMetrics system. TTI has the specific advantage of being
extensible and customizable by targets to reflect target-specific cost
metrics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173032 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/InlineCost.cpp b/lib/Analysis/InlineCost.cpp
index 5c4e7026d1ef6e21fd462659d0a2cbe1d058351b..cd211c408d676a10e6c547e0f53066a9d564033c 100644 (file)
--- a/lib/Analysis/InlineCost.cpp
+++ b/lib/Analysis/InlineCost.cpp
@@ -422,7 +422,7 @@ bool CallAnalyzer::visitPtrToInt(PtrToIntInst &I) {
   if (lookupSROAArgAndCost(I.getOperand(0), SROAArg, CostIt))
     SROAArgValues[&I] = SROAArg;
 
-  return isInstructionFree(&I, TD);
+  return TargetTransformInfo::TCC_Free == TTI.getUserCost(&I);
 }
 
 bool CallAnalyzer::visitIntToPtr(IntToPtrInst &I) {
@@ -452,7 +452,7 @@ bool CallAnalyzer::visitIntToPtr(IntToPtrInst &I) {
   if (lookupSROAArgAndCost(Op, SROAArg, CostIt))
     SROAArgValues[&I] = SROAArg;
 
-  return isInstructionFree(&I, TD);
+  return TargetTransformInfo::TCC_Free == TTI.getUserCost(&I);
 }
 
 bool CallAnalyzer::visitCastInst(CastInst &I) {
@@ -469,7 +469,7 @@ bool CallAnalyzer::visitCastInst(CastInst &I) {
   // Disable SROA in the face of arbitrary casts we don't whitelist elsewhere.
   disableSROA(I.getOperand(0));
 
-  return isInstructionFree(&I, TD);
+  return TargetTransformInfo::TCC_Free == TTI.getUserCost(&I);
 }
 
 bool CallAnalyzer::visitUnaryInstruction(UnaryInstruction &I) {
@@ -782,7 +782,7 @@ bool CallAnalyzer::visitCallSite(CallSite CS) {
 bool CallAnalyzer::visitInstruction(Instruction &I) {
   // Some instructions are free. All of the free intrinsics can also be
   // handled by SROA, etc.
-  if (isInstructionFree(&I, TD))
+  if (TargetTransformInfo::TCC_Free == TTI.getUserCost(&I))
     return true;
 
   // We found something we don't understand or can't handle. Mark any SROA-able