Subzero: Add Non-SFI support for x86-32.

src/IceInstX86Base.h

Index: src/IceInstX86Base.h
diff --git a/src/IceInstX86Base.h b/src/IceInstX86Base.h
index 4c62a545c32ba2ce0e999a666ae8d17acd268f1b..7a7c51c19ba626d186bbdc72e66d128e729464df 100644
--- a/src/IceInstX86Base.h
+++ b/src/IceInstX86Base.h
@@ -67,6 +67,7 @@ public:
     Divps,
     Divss,
     FakeRMW,
+    GetIP,
     Fld,
     Fstp,
     Icmp,
@@ -240,6 +241,27 @@ private:
                  InstArithmetic::OpKind Op, Variable *Beacon);
 };
 
+template <class Machine>
+class InstX86GetIP final : public InstX86Base<Machine> {
+  InstX86GetIP() = delete;
+  InstX86GetIP(const InstX86GetIP &) = delete;
+  InstX86GetIP &operator=(const InstX86GetIP &) = delete;
+
+public:
+  static InstX86GetIP *create(Cfg *Func, Variable *Dest) {
+    return new (Func->allocate<InstX86GetIP>()) InstX86GetIP(Func, Dest);
+  }
+  void emit(const Cfg *Func) const override;
+  void emitIAS(const Cfg *Func) const override;
+  void dump(const Cfg *Func) const override;
+  static bool classof(const Inst *Inst) {
+    return InstX86Base<Machine>::isClassof(Inst, InstX86Base<Machine>::GetIP);
+  }
+
+private:
+  InstX86GetIP(Cfg *Func, Variable *Dest);
+};
+
 /// InstX86Label represents an intra-block label that is the target of an
 /// intra-block branch. The offset between the label and the branch must be fit
 /// into one byte (considered "near"). These are used for lowering i1