https://github.com/anutosh491 updated 
https://github.com/llvm/llvm-project/pull/175910

>From 7edf2a3e11ed210f65fbc3e516eb227b6b7dd233 Mon Sep 17 00:00:00 2001
From: anutosh491 <[email protected]>
Date: Wed, 7 Oct 2026 11:54:57 +0530
Subject: [PATCH] [clang-repl] Drop ORC link dependencies from Emscripten
 builds

---
 .../clang/Interpreter/IncrementalExecutor.h   |  2 ++
 clang/include/clang/Interpreter/Interpreter.h |  2 --
 clang/lib/Interpreter/CMakeLists.txt          | 29 ++++++++++--------
 clang/lib/Interpreter/IncrementalExecutor.cpp | 11 ++-----
 clang/lib/Interpreter/Interpreter.cpp         |  3 +-
 clang/lib/Interpreter/Wasm.cpp                | 30 +++++++++++++++++++
 clang/unittests/Interpreter/CMakeLists.txt    | 12 ++++----
 .../Interpreter/InterpreterExtensionsTest.cpp |  3 ++
 8 files changed, 60 insertions(+), 32 deletions(-)

diff --git a/clang/include/clang/Interpreter/IncrementalExecutor.h 
b/clang/include/clang/Interpreter/IncrementalExecutor.h
index 913da9230a947..90f858ff90b15 100644
--- a/clang/include/clang/Interpreter/IncrementalExecutor.h
+++ b/clang/include/clang/Interpreter/IncrementalExecutor.h
@@ -52,8 +52,10 @@ class IncrementalExecutorBuilder {
   std::optional<llvm::CodeModel::Model> CM = std::nullopt;
   /// An optional external IncrementalExecutor
   std::unique_ptr<IncrementalExecutor> IE;
+#ifndef __EMSCRIPTEN__
   /// An optional external orc jit builder
   std::unique_ptr<llvm::orc::LLJITBuilder> JITBuilder;
+#endif
   /// A default callback that can be used in the IncrementalCompilerBuilder to
   /// retrieve the path to the orc runtime.
   std::function<llvm::Error(const driver::Compilation &)>
diff --git a/clang/include/clang/Interpreter/Interpreter.h 
b/clang/include/clang/Interpreter/Interpreter.h
index c2622b23d5d9c..0dd1e52749b4f 100644
--- a/clang/include/clang/Interpreter/Interpreter.h
+++ b/clang/include/clang/Interpreter/Interpreter.h
@@ -20,8 +20,6 @@
 #include "clang/Interpreter/Value.h"
 
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ExecutionEngine/JITSymbol.h"
-#include "llvm/ExecutionEngine/Orc/ExecutorProcessControl.h"
 #include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
 #include "llvm/Support/Error.h"
 #include <cstdint>
diff --git a/clang/lib/Interpreter/CMakeLists.txt 
b/clang/lib/Interpreter/CMakeLists.txt
index 01d3295d1ac30..95bac67e1b9db 100644
--- a/clang/lib/Interpreter/CMakeLists.txt
+++ b/clang/lib/Interpreter/CMakeLists.txt
@@ -3,35 +3,39 @@ set(LLVM_LINK_COMPONENTS
    native
    MC
    Option
-   OrcJit
-   OrcDebugging
-   OrcShared
-   OrcTargetProcess
    Support
    Target
    TargetParser
    TransformUtils
    )
 
-if (EMSCRIPTEN AND "lld" IN_LIST LLVM_ENABLE_PROJECTS)
-  set(WASM_SRC Wasm.cpp)
-  set(WASM_LINK lldWasm)
-  set(COMMON_LINK lldCommon)
+if (EMSCRIPTEN)
+  if (NOT "lld" IN_LIST LLVM_ENABLE_PROJECTS)
+    message(FATAL_ERROR "Building clangInterpreter for Emscripten requires 
lld")
+  endif()
+  set(EXECUTOR_SOURCES Wasm.cpp)
+  set(EXECUTOR_LIBS lldWasm lldCommon)
+else()
+  list(APPEND LLVM_LINK_COMPONENTS
+    OrcJit
+    OrcDebugging
+    OrcShared
+    OrcTargetProcess
+    )
+  set(EXECUTOR_SOURCES IncrementalExecutor.cpp OrcIncrementalExecutor.cpp)
 endif()
 
 add_clang_library(clangInterpreter
   DeviceOffload.cpp
   CodeCompletion.cpp
   IncrementalAction.cpp
-  IncrementalExecutor.cpp
-  OrcIncrementalExecutor.cpp
   IncrementalParser.cpp
   Interpreter.cpp
   InterpreterValuePrinter.cpp
   InterpreterUtils.cpp
   Value.cpp
   InterpreterValuePrinter.cpp
-  ${WASM_SRC}
+  ${EXECUTOR_SOURCES}
   PARTIAL_SOURCES_INTENDED
 
   DEPENDS
@@ -51,8 +55,7 @@ add_clang_library(clangInterpreter
   clangParse
   clangSema
   clangSerialization
-  ${WASM_LINK}
-  ${COMMON_LINK}
+  ${EXECUTOR_LIBS}
   )
 
 if ((MINGW OR CYGWIN) AND BUILD_SHARED_LIBS)
diff --git a/clang/lib/Interpreter/IncrementalExecutor.cpp 
b/clang/lib/Interpreter/IncrementalExecutor.cpp
index 5d01ba4774269..db805bb4219a4 100644
--- a/clang/lib/Interpreter/IncrementalExecutor.cpp
+++ b/clang/lib/Interpreter/IncrementalExecutor.cpp
@@ -12,9 +12,6 @@
 
 #include "clang/Interpreter/IncrementalExecutor.h"
 #include "OrcIncrementalExecutor.h"
-#ifdef __EMSCRIPTEN__
-#include "Wasm.h"
-#endif // __EMSCRIPTEN__
 
 #include "clang/Basic/TargetInfo.h"
 #include "clang/Config/config.h"
@@ -427,12 +424,8 @@ 
IncrementalExecutorBuilder::create(llvm::orc::ThreadSafeContext &TSC,
   }
 
   llvm::Error Err = llvm::Error::success();
-  std::unique_ptr<IncrementalExecutor> Executor;
-#ifdef __EMSCRIPTEN__
-  Executor = std::make_unique<WasmIncrementalExecutor>(Err);
-#else
-  Executor = std::make_unique<OrcIncrementalExecutor>(TSC, *JITBuilder, Err);
-#endif
+  std::unique_ptr<IncrementalExecutor> Executor =
+      std::make_unique<OrcIncrementalExecutor>(TSC, *JITBuilder, Err);
 
   if (Err)
     return std::move(Err);
diff --git a/clang/lib/Interpreter/Interpreter.cpp 
b/clang/lib/Interpreter/Interpreter.cpp
index 40fbc83db9107..48ed3f614a50b 100644
--- a/clang/lib/Interpreter/Interpreter.cpp
+++ b/clang/lib/Interpreter/Interpreter.cpp
@@ -45,9 +45,8 @@
 #include "clang/Serialization/ASTReader.h"
 #include "clang/Serialization/ModuleCache.h"
 #include "clang/Serialization/ObjectFilePCHContainerReader.h"
-#include "llvm/ExecutionEngine/JITSymbol.h"
-#include "llvm/ExecutionEngine/Orc/EPCDynamicLibrarySearchGenerator.h"
 #include "llvm/ExecutionEngine/Orc/LLJIT.h"
+#include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/ErrorHandling.h"
diff --git a/clang/lib/Interpreter/Wasm.cpp b/clang/lib/Interpreter/Wasm.cpp
index 573c8910d3a41..7739747ca69be 100644
--- a/clang/lib/Interpreter/Wasm.cpp
+++ b/clang/lib/Interpreter/Wasm.cpp
@@ -61,6 +61,36 @@ bool link(llvm::ArrayRef<const char *> args, 
llvm::raw_ostream &stdoutOS,
 
 namespace clang {
 
+IncrementalExecutorBuilder::~IncrementalExecutorBuilder() = default;
+
+llvm::Expected<std::unique_ptr<IncrementalExecutor>>
+IncrementalExecutorBuilder::create(llvm::orc::ThreadSafeContext &TSC,
+                                   const clang::TargetInfo &TI) {
+  if (IE)
+    return std::move(IE);
+
+  if (IsOutOfProcess)
+    return llvm::createStringError(llvm::inconvertibleErrorCode(),
+                                   "Out-of-process execution is not supported "
+                                   "by the WebAssembly executor");
+
+  llvm::Error Err = llvm::Error::success();
+  std::unique_ptr<IncrementalExecutor> Executor =
+      std::make_unique<WasmIncrementalExecutor>(Err);
+  if (Err)
+    return std::move(Err);
+  return std::move(Executor);
+}
+
+llvm::Error IncrementalExecutorBuilder::UpdateOrcRuntimePath(
+    const clang::driver::Compilation &C) {
+  if (IsOutOfProcess)
+    return llvm::createStringError(llvm::inconvertibleErrorCode(),
+                                   "Out-of-process execution is not supported "
+                                   "by the WebAssembly executor");
+  return llvm::Error::success();
+}
+
 WasmIncrementalExecutor::WasmIncrementalExecutor(llvm::Error &Err) {
   llvm::ErrorAsOutParameter EAO(&Err);
 
diff --git a/clang/unittests/Interpreter/CMakeLists.txt 
b/clang/unittests/Interpreter/CMakeLists.txt
index 6d999104054c3..466563e5c4a24 100644
--- a/clang/unittests/Interpreter/CMakeLists.txt
+++ b/clang/unittests/Interpreter/CMakeLists.txt
@@ -3,7 +3,7 @@ set(LLVM_COMPONENTS_TO_LINK
   ""
   )
 set(LLVM_LIBS_TO_LINK
-  ""
+  LLVMTestingSupport
   )
 set(CLANG_LIBS_TO_LINK
   clangInterpreter
@@ -71,10 +71,10 @@ if(TARGET compiler-rt AND LLVM_ON_UNIX)
 endif()
 
 if(EMSCRIPTEN)
-# Without the above you try to link to LLVMSupport twice, and end
-# up with a duplicate symbol error when creating the main module
+# LLVMSupport and llvm_gtest are linked transitively. Repeated archives cause
+# duplicate symbol errors when creating the main module.
 get_target_property(LINKED_LIBS ClangReplInterpreterTests LINK_LIBRARIES)
-list(REMOVE_ITEM LINKED_LIBS LLVMSupport)
+list(REMOVE_ITEM LINKED_LIBS LLVMSupport llvm_gtest default_gtest)
 set_target_properties(ClangReplInterpreterTests PROPERTIES LINK_LIBRARIES 
"${LINKED_LIBS}")
 target_link_options(ClangReplInterpreterTests
   PUBLIC "SHELL: -s MAIN_MODULE=1"
@@ -93,8 +93,8 @@ set_target_properties(ClangReplInterpreterTests PROPERTIES
 )
 endif()
 
-# Exceptions on Windows are not yet supported.
-if(NOT WIN32)
+# Interpreter exception tests are not supported on Windows or Emscripten.
+if(NOT WIN32 AND NOT EMSCRIPTEN)
   add_subdirectory(ExceptionTests)
 endif()
 
diff --git a/clang/unittests/Interpreter/InterpreterExtensionsTest.cpp 
b/clang/unittests/Interpreter/InterpreterExtensionsTest.cpp
index 13825f2cbdddf..642869e124b8b 100644
--- a/clang/unittests/Interpreter/InterpreterExtensionsTest.cpp
+++ b/clang/unittests/Interpreter/InterpreterExtensionsTest.cpp
@@ -65,6 +65,7 @@ class InterpreterExtensionsTest : public InterpreterTestBase {
   }
 };
 
+#ifndef __EMSCRIPTEN__
 class CustomJBInterpreter : public Interpreter {
   using CustomJITBuilderCreatorFunction =
       
std::function<llvm::Expected<std::unique_ptr<llvm::orc::LLJITBuilder>>()>;
@@ -138,6 +139,8 @@ TEST_F(InterpreterExtensionsTest, CustomCrossJIT) {
   EXPECT_EQ(1U, Objs.size());
 }
 
+#endif // __EMSCRIPTEN__
+
 TEST_F(InterpreterExtensionsTest, CustomIncrementalExecutor) {
   struct RecordingIncrementalExecutor : public clang::IncrementalExecutor {
     mutable unsigned RanCtors = false;

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