Add LLVMContext::emitWarning methods and use them. <rdar://problem/12867368>
When the backend is used from clang, it should produce proper diagnostics
instead of just printing messages to errs(). Other clients may also want to
register their own error handlers with the LLVMContext, and the same handler
should work for warnings in the same way as the existing emitError methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171041 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Instrumentation/PathProfiling.cpp b/lib/Transforms/Instrumentation/PathProfiling.cpp
index 2a0e89c..2d324b8 100644
--- a/lib/Transforms/Instrumentation/PathProfiling.cpp
+++ b/lib/Transforms/Instrumentation/PathProfiling.cpp
@@ -1345,8 +1345,8 @@
Main = M.getFunction("MAIN__");
if (!Main) {
- errs() << "WARNING: cannot insert path profiling into a module"
- << " with no main function!\n";
+ Context->emitWarning("cannot insert edge profiling into a module"
+ " with no main function");
return false;
}