[clang] [clang-repl] Fix the process return code if diagnostics occurred. (PR #89879)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Vassil Vassilev (vgvassilev)

<details>
<summary>Changes</summary>

Should fix the failure seen in the pre-merge infrastructure of #<!-- -->89804.

---
Full diff: https://github.com/llvm/llvm-project/pull/89879.diff


2 Files Affected:

- (modified) clang/test/Interpreter/fail.cpp (+4-7) 
- (modified) clang/tools/clang-repl/ClangRepl.cpp (+7-9) 


``````````diff
diff --git a/clang/test/Interpreter/fail.cpp b/clang/test/Interpreter/fail.cpp
index 4e301f37548f1f..b9035aca3cb7b1 100644
--- a/clang/test/Interpreter/fail.cpp
+++ b/clang/test/Interpreter/fail.cpp
@@ -1,12 +1,9 @@
-// FIXME: There're some inconsistencies between interactive and non-interactive
-// modes. For example, when clang-repl runs in the interactive mode, issues an
-// error, and then successfully recovers if we decide it's a success then for
-// the non-interactive mode the exit code should be a failure.
-// RUN: clang-repl "int x = 10;" "int y=7; err;" "int y = 10;"
 // REQUIRES: host-supports-jit
 // UNSUPPORTED: system-aix
-// RUN: cat %s | not clang-repl | FileCheck %s
-BOOM!
+// RUN: not clang-repl "int x = 10;" "int y=7; err;" "int y = 10;"
+// RUN: cat %s | clang-repl | FileCheck %s
+// RUN: cat %s | not clang-repl -Xcc -Xclang -Xcc -verify | FileCheck %s
+BOOM! // expected-error {{intended to fail the -verify test}}
 extern "C" int printf(const char *, ...);
 int i = 42;
 auto r1 = printf("i = %d\n", i);
diff --git a/clang/tools/clang-repl/ClangRepl.cpp b/clang/tools/clang-repl/ClangRepl.cpp
index aecf61b97fc719..bdc740c33a8f72 100644
--- a/clang/tools/clang-repl/ClangRepl.cpp
+++ b/clang/tools/clang-repl/ClangRepl.cpp
@@ -215,12 +215,15 @@ int main(int argc, const char **argv) {
   } else
     Interp = ExitOnErr(clang::Interpreter::create(std::move(CI)));
 
+  bool HasError = false;
+
   for (const std::string &input : OptInputs) {
-    if (auto Err = Interp->ParseAndExecute(input))
+    if (auto Err = Interp->ParseAndExecute(input)) {
       llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(), "error: ");
+      HasError = true;
+    }
   }
 
-  bool HasError = false;
 
   if (OptInputs.empty()) {
     llvm::LineEditor LE("clang-repl");
@@ -241,18 +244,13 @@ int main(int argc, const char **argv) {
         break;
       }
       if (Input == R"(%undo)") {
-        if (auto Err = Interp->Undo()) {
+        if (auto Err = Interp->Undo())
           llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(), "error: ");
-          HasError = true;
-        }
       } else if (Input.rfind("%lib ", 0) == 0) {
-        if (auto Err = Interp->LoadDynamicLibrary(Input.data() + 5)) {
+        if (auto Err = Interp->LoadDynamicLibrary(Input.data() + 5))
           llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(), "error: ");
-          HasError = true;
-        }
       } else if (auto Err = Interp->ParseAndExecute(Input)) {
         llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(), "error: ");
-        HasError = true;
       }
 
       Input = "";

``````````

</details>


https://github.com/llvm/llvm-project/pull/89879