llvm16 targets

1 files changed, 72 insertions, 0 deletions

diff --git a/contrib/libs/llvm16/lib/Target/WebAssembly/WebAssemblyDebugValueManager.cpp b/contrib/libs/llvm16/lib/Target/WebAssembly/WebAssemblyDebugValueManager.cpp
new file mode 100644
index 00000000000..55be64ad7da
--- /dev/null
+++ b/contrib/libs/llvm16/lib/Target/WebAssembly/WebAssemblyDebugValueManager.cpp
@@ -0,0 +1,72 @@
+//===-- WebAssemblyDebugValueManager.cpp - WebAssembly DebugValue Manager -===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the manager for MachineInstr DebugValues.
+///
+//===----------------------------------------------------------------------===//
+
+#include "WebAssemblyDebugValueManager.h"
+#include "WebAssembly.h"
+#include "WebAssemblyMachineFunctionInfo.h"
+#include "llvm/CodeGen/MachineInstr.h"
+
+using namespace llvm;
+
+WebAssemblyDebugValueManager::WebAssemblyDebugValueManager(
+    MachineInstr *Instr) {
+  // This code differs from MachineInstr::collectDebugValues in that it scans
+  // the whole BB, not just contiguous DBG_VALUEs.
+  if (!Instr->getOperand(0).isReg())
+    return;
+  CurrentReg = Instr->getOperand(0).getReg();
+
+  MachineBasicBlock::iterator DI = *Instr;
+  ++DI;
+  for (MachineBasicBlock::iterator DE = Instr->getParent()->end(); DI != DE;
+       ++DI) {
+    if (DI->isDebugValue() &&
+        DI->hasDebugOperandForReg(Instr->getOperand(0).getReg()))
+      DbgValues.push_back(&*DI);
+  }
+}
+
+void WebAssemblyDebugValueManager::move(MachineInstr *Insert) {
+  MachineBasicBlock *MBB = Insert->getParent();
+  for (MachineInstr *DBI : reverse(DbgValues))
+    MBB->splice(Insert, DBI->getParent(), DBI);
+}
+
+void WebAssemblyDebugValueManager::updateReg(unsigned Reg) {
+  for (auto *DBI : DbgValues)
+    for (auto &MO : DBI->getDebugOperandsForReg(CurrentReg))
+      MO.setReg(Reg);
+  CurrentReg = Reg;
+}
+
+void WebAssemblyDebugValueManager::clone(MachineInstr *Insert,
+                                         unsigned NewReg) {
+  MachineBasicBlock *MBB = Insert->getParent();
+  MachineFunction *MF = MBB->getParent();
+  for (MachineInstr *DBI : reverse(DbgValues)) {
+    MachineInstr *Clone = MF->CloneMachineInstr(DBI);
+    for (auto &MO : Clone->getDebugOperandsForReg(CurrentReg))
+      MO.setReg(NewReg);
+    MBB->insert(Insert, Clone);
+  }
+}
+
+void WebAssemblyDebugValueManager::replaceWithLocal(unsigned LocalId) {
+  for (auto *DBI : DbgValues) {
+    auto IndexType = DBI->isIndirectDebugValue()
+                         ? llvm::WebAssembly::TI_LOCAL_INDIRECT
+                         : llvm::WebAssembly::TI_LOCAL;
+    for (auto &MO : DBI->getDebugOperandsForReg(CurrentReg))
+      MO.ChangeToTargetIndex(IndexType, LocalId);
+  }
+}