1 files changed, 0 insertions, 88 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyExceptionPrepare.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyExceptionPrepare.cpp
deleted file mode 100644
index 837e9576c85..00000000000
--- a/llvm/lib/Target/WebAssembly/WebAssemblyExceptionPrepare.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-//=== WebAssemblyExceptionPrepare.cpp - WebAssembly Exception Preparation -===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// \brief Does various transformations for exception handling.
-///
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
-#include "WebAssembly.h"
-#include "WebAssemblySubtarget.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "wasm-exception-prepare"
-
-namespace {
-class WebAssemblyExceptionPrepare final : public MachineFunctionPass {
-  StringRef getPassName() const override {
-    return "WebAssembly Prepare Exception";
-  }
-
-  bool runOnMachineFunction(MachineFunction &MF) override;
-
-  bool replaceFuncletReturns(MachineFunction &MF);
-
-public:
-  static char ID; // Pass identification, replacement for typeid
-  WebAssemblyExceptionPrepare() : MachineFunctionPass(ID) {}
-};
-} // end anonymous namespace
-
-char WebAssemblyExceptionPrepare::ID = 0;
-INITIALIZE_PASS(WebAssemblyExceptionPrepare, DEBUG_TYPE,
-                "WebAssembly Exception Preparation", false, false)
-
-FunctionPass *llvm::createWebAssemblyExceptionPrepare() {
-  return new WebAssemblyExceptionPrepare();
-}
-
-bool WebAssemblyExceptionPrepare::runOnMachineFunction(MachineFunction &MF) {
-  bool Changed = false;
-  if (!MF.getFunction().hasPersonalityFn())
-    return false;
-  Changed |= replaceFuncletReturns(MF);
-  // TODO More transformations will be added
-  return Changed;
-}
-
-bool WebAssemblyExceptionPrepare::replaceFuncletReturns(MachineFunction &MF) {
-  bool Changed = false;
-  const auto &TII = *MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
-
-  for (auto &MBB : MF) {
-    auto Pos = MBB.getFirstTerminator();
-    if (Pos == MBB.end())
-      continue;
-    MachineInstr *TI = &*Pos;
-
-    switch (TI->getOpcode()) {
-    case WebAssembly::CATCHRET: {
-      // Replace a catchret with a branch
-      MachineBasicBlock *TBB = TI->getOperand(0).getMBB();
-      if (!MBB.isLayoutSuccessor(TBB))
-        BuildMI(MBB, TI, TI->getDebugLoc(), TII.get(WebAssembly::BR))
-            .addMBB(TBB);
-      TI->eraseFromParent();
-      Changed = true;
-      break;
-    }
-    case WebAssembly::CLEANUPRET: {
-      // Replace a cleanupret with a rethrow
-      BuildMI(MBB, TI, TI->getDebugLoc(), TII.get(WebAssembly::RETHROW))
-          .addImm(0);
-      TI->eraseFromParent();
-      Changed = true;
-      break;
-    }
-    }
-  }
-  return Changed;
-}