[Orc] Add conversion to/from RuntimeDyld::SymbolInfo for JITSymbol.

This tidies up some code that was manually constructing RuntimeDyld::SymbolInfo
instances from JITSymbols. It will save more mess in the future when
JITSymbol::getAddress is extended to return an Expected<TargetAddress> rather
than just a TargetAddress, since we'll be able to embed the error checking in
the conversion.

llvm-svn: 271350

14 files changed, 29 insertions, 22 deletions

diff --git a/llvm/docs/tutorial/BuildingAJIT1.rst b/llvm/docs/tutorial/BuildingAJIT1.rst
index ebaea499bd7..0859100f8d8 100644
--- a/llvm/docs/tutorial/BuildingAJIT1.rst
+++ b/llvm/docs/tutorial/BuildingAJIT1.rst
@@ -190,7 +190,7 @@ available for execution.
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = CompileLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &S) {
diff --git a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/KaleidoscopeJIT.h
index 9b68d9451ed..35c871affec 100644
--- a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/KaleidoscopeJIT.h
@@ -62,7 +62,7 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = CompileLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &Name) {
diff --git a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h
index 754c382a1df..30cfed6af95 100644
--- a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h
@@ -72,7 +72,7 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = OptimizeLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &Name) {
diff --git a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/KaleidoscopeJIT.h
index 55a02ab25cf..7ef1d07d879 100644
--- a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/KaleidoscopeJIT.h
@@ -82,7 +82,7 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = CODLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &Name) {
diff --git a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/KaleidoscopeJIT.h
index 4c654a823a2..b856bb5e4f3 100644
--- a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/KaleidoscopeJIT.h
@@ -106,9 +106,9 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = IndirectStubsMgr->findStub(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           if (auto Sym = OptimizeLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &Name) {
diff --git a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter5/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter5/KaleidoscopeJIT.h
index d72dfdde343..900ad844573 100644
--- a/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter5/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter5/KaleidoscopeJIT.h
@@ -122,9 +122,9 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = IndirectStubsMgr->findStub(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           if (auto Sym = OptimizeLayer.findSymbol(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [&](const std::string &Name) {
diff --git a/llvm/examples/Kaleidoscope/include/KaleidoscopeJIT.h b/llvm/examples/Kaleidoscope/include/KaleidoscopeJIT.h
index e7630e275b9..2f492b0e17f 100644
--- a/llvm/examples/Kaleidoscope/include/KaleidoscopeJIT.h
+++ b/llvm/examples/Kaleidoscope/include/KaleidoscopeJIT.h
@@ -60,7 +60,7 @@ public:
     auto Resolver = createLambdaResolver(
         [&](const std::string &Name) {
           if (auto Sym = findMangledSymbol(Name))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           return RuntimeDyld::SymbolInfo(nullptr);
         },
         [](const std::string &S) { return nullptr; });
diff --git a/llvm/include/llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h b/llvm/include/llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h
index e34eaf4d4b5..f3cb45b65f6 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h
@@ -360,7 +360,7 @@ private:
         [&LD, LMH](const std::string &Name) {
           auto &LMResources = LD.getLogicalModuleResources(LMH);
           if (auto Sym = LMResources.StubsMgr->findStub(Name, false))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           auto &LDResolver = LD.getDylibResources().ExternalSymbolResolver;
           return LDResolver->findSymbolInLogicalDylib(Name);
         },
@@ -487,9 +487,8 @@ private:
     // Create memory manager and symbol resolver.
     auto Resolver = createLambdaResolver(
         [this, &LD, LMH](const std::string &Name) {
-          if (auto Symbol = LD.findSymbolInternally(LMH, Name))
-            return RuntimeDyld::SymbolInfo(Symbol.getAddress(),
-                                           Symbol.getFlags());
+          if (auto Sym = LD.findSymbolInternally(LMH, Name))
+            return Sym.toRuntimeDyldSymbol();
           auto &LDResolver = LD.getDylibResources().ExternalSymbolResolver;
           return LDResolver->findSymbolInLogicalDylib(Name);
         },
diff --git a/llvm/include/llvm/ExecutionEngine/Orc/JITSymbol.h b/llvm/include/llvm/ExecutionEngine/Orc/JITSymbol.h
index 422a3761837..464417e4e6d 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/JITSymbol.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/JITSymbol.h
@@ -15,6 +15,7 @@
 #define LLVM_EXECUTIONENGINE_ORC_JITSYMBOL_H
 
 #include "llvm/ExecutionEngine/JITSymbolFlags.h"
+#include "llvm/ExecutionEngine/RuntimeDyld.h"
 #include "llvm/Support/DataTypes.h"
 #include <cassert>
 #include <functional>
@@ -52,6 +53,10 @@ public:
   JITSymbol(GetAddressFtor GetAddress, JITSymbolFlags Flags)
       : JITSymbolBase(Flags), GetAddress(std::move(GetAddress)), CachedAddr(0) {}
 
+  /// @brief Create a JITSymbol from a RuntimeDyld::SymbolInfo.
+  JITSymbol(const RuntimeDyld::SymbolInfo &Sym)
+    : JITSymbolBase(Sym.getFlags()), CachedAddr(Sym.getAddress()) {}
+
   /// @brief Returns true if the symbol exists, false otherwise.
   explicit operator bool() const { return CachedAddr || GetAddress; }
 
@@ -66,6 +71,11 @@ public:
     return CachedAddr;
   }
 
+  /// @brief Convert this JITSymbol to a RuntimeDyld::SymbolInfo.
+  RuntimeDyld::SymbolInfo toRuntimeDyldSymbol() {
+    return RuntimeDyld::SymbolInfo(getAddress(), getFlags());
+  }
+
 private:
   GetAddressFtor GetAddress;
   TargetAddress CachedAddr;
diff --git a/llvm/include/llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h b/llvm/include/llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h
index 4f4181846e7..a7798d8beb8 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h
@@ -57,8 +57,7 @@ protected:
       if (!Finalized)
         return JITSymbol(getSymbolMaterializer(Name),
                          SymEntry->second.getFlags());
-      return JITSymbol(SymEntry->second.getAddress(),
-                       SymEntry->second.getFlags());
+      return JITSymbol(SymEntry->second);
     }
   protected:
     StringMap<RuntimeDyld::SymbolInfo> SymbolTable;
diff --git a/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.h b/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.h
index f49d49115e5..9ae9b20feb0 100644
--- a/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.h
+++ b/llvm/lib/ExecutionEngine/Orc/OrcCBindingsStack.h
@@ -145,7 +145,7 @@ public:
           // 3. External resolver (if present).
 
           if (auto Sym = CODLayer.findSymbol(Name, true))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           if (auto Sym = CXXRuntimeOverrides.searchOverrides(Name))
             return Sym;
 
diff --git a/llvm/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h b/llvm/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h
index 518ba282090..5ab47b97dbd 100644
--- a/llvm/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h
+++ b/llvm/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h
@@ -245,11 +245,11 @@ private:
 
   RuntimeDyld::SymbolInfo findMangledSymbol(StringRef Name) {
     if (auto Sym = LazyEmitLayer.findSymbol(Name, false))
-      return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+      return Sym.toRuntimeDyldSymbol();
     if (auto Sym = ClientResolver->findSymbol(Name))
-      return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+      return Sym;
     if (auto Sym = scanArchives(Name))
-      return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+      return Sym.toRuntimeDyldSymbol();
 
     return nullptr;
   }
diff --git a/llvm/tools/lli/OrcLazyJIT.h b/llvm/tools/lli/OrcLazyJIT.h
index 69aaa4be80b..733bdd8c04d 100644
--- a/llvm/tools/lli/OrcLazyJIT.h
+++ b/llvm/tools/lli/OrcLazyJIT.h
@@ -83,8 +83,7 @@ public:
       orc::createLambdaResolver(
         [this](const std::string &Name) {
           if (auto Sym = CODLayer.findSymbol(Name, true))
-            return RuntimeDyld::SymbolInfo(Sym.getAddress(),
-                                           Sym.getFlags());
+            return Sym.toRuntimeDyldSymbol();
           if (auto Sym = CXXRuntimeOverrides.searchOverrides(Name))
             return Sym;
 
diff --git a/llvm/unittests/ExecutionEngine/Orc/ObjectLinkingLayerTest.cpp b/llvm/unittests/ExecutionEngine/Orc/ObjectLinkingLayerTest.cpp
index 89adb665f22..87928347d88 100644
--- a/llvm/unittests/ExecutionEngine/Orc/ObjectLinkingLayerTest.cpp
+++ b/llvm/unittests/ExecutionEngine/Orc/ObjectLinkingLayerTest.cpp
@@ -165,7 +165,7 @@ TEST_F(ObjectLinkingLayerExecutionTest, NoDuplicateFinalization) {
     createLambdaResolver(
       [&](const std::string &Name) {
         if (auto Sym = ObjLayer.findSymbol(Name, true))
-          return RuntimeDyld::SymbolInfo(Sym.getAddress(), Sym.getFlags());
+          return Sym.toRuntimeDyldSymbol();
         return RuntimeDyld::SymbolInfo(nullptr);
       },
       [](const std::string &Name) {