[CodeGen] Run machine optimizations once

1 files changed, 1 insertions, 17 deletions

diff --git a/backend/lib/CodeGen/MachineMemoryFolding.cpp b/backend/lib/CodeGen/MachineMemoryFolding.cpp
index 388f72c..fb4b86d 100644
--- a/backend/lib/CodeGen/MachineMemoryFolding.cpp
+++ b/backend/lib/CodeGen/MachineMemoryFolding.cpp
@@ -5,7 +5,6 @@
 #include "rcc/CodeGen/InstructionDescriptor.h"
 #include "rcc/CodeGen/MachineBasicBlock.h"
 #include "rcc/CodeGen/MachineFunction.h"
-#include "rcc/CodeGen/MachineFunctionCloner.h"
 #include "rcc/CodeGen/MachineInstr.h"
 #include "rcc/CodeGen/MachineMemOperand.h"
 #include "rcc/CodeGen/MachineOperand.h"
@@ -181,22 +180,7 @@ const MachinePassContract &MachineMemoryFoldingPass::contract() const noexcept {
 Expected<MachinePassResult> MachineMemoryFoldingPass::run(MachineFunction &Function,
                                                           const TargetDescription &Target,
                                                           MachineFunctionAnalysisManager &) {
-  auto Trial = cloneMachineFunction(
-      Function, Target,
-      MachineFunctionCloneOptions{.NewStableID = Function.stableID(), .NewName = std::nullopt});
-  if (!Trial) {
-    return std::unexpected(
-        withErrorContext(Trial.error(), "memory folding transaction setup failed: "));
-  }
-  auto TrialResult = runImplementation(*Trial->ClonedFunction, Target);
-  if (!TrialResult)
-    return std::unexpected(TrialResult.error());
-  auto Result = runImplementation(Function, Target);
-  if (!Result) {
-    return std::unexpected(withErrorContext(
-        Result.error(), "memory folding diverged after a successful transaction preflight: "));
-  }
-  return Result;
+  return runImplementation(Function, Target);
 }
 
 Expected<MachinePassResult>