vendor/llvm-project/llvmorg-15-init-15358-g53dc0f107877

1 files changed, 3 insertions, 12 deletions

diff --git a/llvm/lib/Analysis/CodeMetrics.cpp b/llvm/lib/Analysis/CodeMetrics.cpp
index 27c52506352f..6d9084215dee 100644
--- a/llvm/lib/Analysis/CodeMetrics.cpp
+++ b/llvm/lib/Analysis/CodeMetrics.cpp
@@ -15,7 +15,6 @@
 #include "llvm/Analysis/AssumptionCache.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
-#include "llvm/Analysis/ValueTracking.h"
 #include "llvm/IR/Function.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/InstructionCost.h"
@@ -118,13 +117,6 @@ void CodeMetrics::analyzeBasicBlock(
     const BasicBlock *BB, const TargetTransformInfo &TTI,
     const SmallPtrSetImpl<const Value *> &EphValues, bool PrepareForLTO) {
   ++NumBlocks;
-  // Use a proxy variable for NumInsts of type InstructionCost, so that it can
-  // use InstructionCost's arithmetic properties such as saturation when this
-  // feature is added to InstructionCost.
-  // When storing the value back to NumInsts, we can assume all costs are Valid
-  // because the IR should not contain any nodes that cannot be costed. If that
-  // happens the cost-model is broken.
-  InstructionCost NumInstsProxy = NumInsts;
   InstructionCost NumInstsBeforeThisBB = NumInsts;
   for (const Instruction &I : *BB) {
     // Skip ephemeral values.
@@ -184,8 +176,7 @@ void CodeMetrics::analyzeBasicBlock(
       if (InvI->cannotDuplicate())
         notDuplicatable = true;
 
-    NumInstsProxy += TTI.getUserCost(&I, TargetTransformInfo::TCK_CodeSize);
-    NumInsts = *NumInstsProxy.getValue();
+    NumInsts += TTI.getUserCost(&I, TargetTransformInfo::TCK_CodeSize);
   }
 
   if (isa<ReturnInst>(BB->getTerminator()))
@@ -205,6 +196,6 @@ void CodeMetrics::analyzeBasicBlock(
   notDuplicatable |= isa<IndirectBrInst>(BB->getTerminator());
 
   // Remember NumInsts for this BB.
-  InstructionCost NumInstsThisBB = NumInstsProxy - NumInstsBeforeThisBB;
-  NumBBInsts[BB] = *NumInstsThisBB.getValue();
+  InstructionCost NumInstsThisBB = NumInsts - NumInstsBeforeThisBB;
+  NumBBInsts[BB] = NumInstsThisBB;
 }