[RISCV] Match LLVM frame lowering semantics

1 files changed, 0 insertions, 22 deletions

diff --git a/backend/lib/CodeGen/FrameIndexElimination.cpp b/backend/lib/CodeGen/FrameIndexElimination.cpp
index 53c64e1..acc502d 100644
--- a/backend/lib/CodeGen/FrameIndexElimination.cpp
+++ b/backend/lib/CodeGen/FrameIndexElimination.cpp
@@ -5,13 +5,11 @@
 #include "rcc/CodeGen/MachineBasicBlock.h"
 #include "rcc/CodeGen/MachineFunction.h"
 #include "rcc/CodeGen/MachineInstr.h"
-#include "rcc/CodeGen/MachineMemOperand.h"
 #include "rcc/CodeGen/MachineOperand.h"
 #include "rcc/CodeGen/RegisterScavenger.h"
 #include "rcc/CodeGen/TargetFrameLowering.h"
 
 #include <cstddef>
-#include <utility>
 
 namespace rcc {
 
@@ -32,26 +30,6 @@ Expected<bool> eliminateFrameIndices(MachineFunction &Function, const TargetDesc
         Changed = true;
       }
 
-      for (std::size_t Index = 0; Index < Instruction->memOperands().size(); ++Index) {
-        const MachineMemOperand *Memory = Instruction->memOperands()[Index];
-        const auto Frame = Memory->description().Base.frameIndex();
-        if (!Frame)
-          continue;
-        auto Reference = FrameLowering.getFrameIndexReference(Function, *Instruction, *Frame,
-                                                              Memory->description().Offset);
-        if (!Reference)
-          return std::unexpected(Reference.error());
-        MachineMemOperandDesc Description = Memory->description();
-        Description.Base = MemoryBase::stack();
-        Description.Offset = Reference->Offset;
-        auto Replacement = Function.createMemOperand(std::move(Description));
-        if (!Replacement)
-          return std::unexpected(Replacement.error());
-        auto Replaced = Instruction->replaceMemOperand(Index, **Replacement);
-        if (!Replaced)
-          return std::unexpected(Replaced.error());
-        Changed = true;
-      }
       Instruction = Next;
     }
   }