Subzero: Add sandboxing for x86-32.

src/IceInst.cpp

Index: src/IceInst.cpp
diff --git a/src/IceInst.cpp b/src/IceInst.cpp
index 3327455f21429ee9a374ca5151f83d0a2a224c84..ce5bde0f00d54d151d8b60ac31b72c7de042149c 100644
--- a/src/IceInst.cpp
+++ b/src/IceInst.cpp
@@ -436,6 +436,13 @@ bool InstSwitch::repointEdge(CfgNode *OldNode, CfgNode *NewNode) {
 InstUnreachable::InstUnreachable(Cfg *Func)
     : InstHighLevel(Func, Inst::Unreachable, 0, nullptr) {}
 
+InstBundleLock::InstBundleLock(Cfg *Func, InstBundleLock::Option BundleOption)
+    : InstHighLevel(Func, Inst::BundleLock, 0, nullptr),
+      BundleOption(BundleOption) {}
+
+InstBundleUnlock::InstBundleUnlock(Cfg *Func)
+    : InstHighLevel(Func, Inst::BundleUnlock, 0, nullptr) {}
+
 InstFakeDef::InstFakeDef(Cfg *Func, Variable *Dest, Variable *Src)
     : InstHighLevel(Func, Inst::FakeDef, Src ? 1 : 0, Dest) {
   assert(Dest);
@@ -774,6 +781,48 @@ void InstUnreachable::dump(const Cfg *Func) const {
   Str << "unreachable";
 }
 
+void InstBundleLock::emit(const Cfg *Func) const {
+  if (!ALLOW_DUMP)
+    return;
+  Ostream &Str = Func->getContext()->getStrEmit();
+  Str << "\t.bundle_lock";
+  switch (BundleOption) {
+  case Opt_None:
+    break;
+  case Opt_AlignToEnd:
+    Str << "\talign_to_end";
+    break;
+  }
+}
+
+void InstBundleLock::dump(const Cfg *Func) const {
+  if (!ALLOW_DUMP)
+    return;
+  Ostream &Str = Func->getContext()->getStrDump();
+  Str << "bundle_lock";
+  switch (BundleOption) {
+  case Opt_None:
+    break;
+  case Opt_AlignToEnd:
+    Str << " align_to_end";
+    break;
+  }
+}
+
+void InstBundleUnlock::emit(const Cfg *Func) const {
+  if (!ALLOW_DUMP)
+    return;
+  Ostream &Str = Func->getContext()->getStrEmit();
+  Str << "\t.bundle_unlock";
+}
+
+void InstBundleUnlock::dump(const Cfg *Func) const {
+  if (!ALLOW_DUMP)
+    return;
+  Ostream &Str = Func->getContext()->getStrDump();
+  Str << "bundle_unlock";
+}
+
 void InstFakeDef::emit(const Cfg *Func) const {
   if (!ALLOW_DUMP)
     return;