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-rw-r--r--clang/include/clang/Basic/DiagnosticCommonKinds.td2
-rw-r--r--clang/lib/Frontend/CompilerInstance.cpp13
2 files changed, 13 insertions, 2 deletions
diff --git a/clang/include/clang/Basic/DiagnosticCommonKinds.td b/clang/include/clang/Basic/DiagnosticCommonKinds.td
index 0b7f9875e5b..ff9ed69022e 100644
--- a/clang/include/clang/Basic/DiagnosticCommonKinds.td
+++ b/clang/include/clang/Basic/DiagnosticCommonKinds.td
@@ -81,6 +81,8 @@ def err_deleted_non_function : Error<
"only functions can have deleted definitions">;
def err_module_not_found : Error<"module '%0' not found">, DefaultFatal;
def err_module_not_built : Error<"could not build module '%0'">, DefaultFatal;
+def err_module_lock_failure : Error<
+ "could not acquire lock file for module '%0'">, DefaultFatal;
def err_module_cycle : Error<"cyclic dependency in module '%0': %1">,
DefaultFatal;
def note_pragma_entered_here : Note<"#pragma entered here">;
diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 9f69e9c47f0..923881c2efe 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -990,9 +990,10 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
SourceLocation ImportLoc,
SourceLocation ModuleNameLoc, Module *Module,
StringRef ModuleFileName) {
+ DiagnosticsEngine &Diags = ImportingInstance.getDiagnostics();
+
auto diagnoseBuildFailure = [&] {
- ImportingInstance.getDiagnostics().Report(ModuleNameLoc,
- diag::err_module_not_built)
+ Diags.Report(ModuleNameLoc, diag::err_module_not_built)
<< Module->Name << SourceRange(ImportLoc, ModuleNameLoc);
};
@@ -1006,6 +1007,8 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
llvm::LockFileManager Locked(ModuleFileName);
switch (Locked) {
case llvm::LockFileManager::LFS_Error:
+ Diags.Report(ModuleNameLoc, diag::err_module_lock_failure)
+ << Module->Name;
return false;
case llvm::LockFileManager::LFS_Owned:
@@ -1040,6 +1043,10 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
continue;
} else if (ReadResult == ASTReader::Missing) {
diagnoseBuildFailure();
+ } else if (ReadResult != ASTReader::Success &&
+ !Diags.hasErrorOccurred()) {
+ // The ASTReader didn't diagnose the error, so conservatively report it.
+ diagnoseBuildFailure();
}
return ReadResult == ASTReader::Success;
}
@@ -1362,6 +1369,8 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
// Try to compile and then load the module.
if (!compileAndLoadModule(*this, ImportLoc, ModuleNameLoc, Module,
ModuleFileName)) {
+ assert(getDiagnostics().hasErrorOccurred() &&
+ "undiagnosed error in compileAndLoadModule");
if (getPreprocessorOpts().FailedModules)
getPreprocessorOpts().FailedModules->addFailed(ModuleName);
KnownModules[Path[0].first] = nullptr;
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