[OptDiag, opt-viewer] Save callee's location and display as link

With this we get a new field in the YAML record if the value being
streamed out has a debug location.  For examples, please see the changes
to the tests.

This is then used in opt-viewer to display a link for the callee
function in the inlining remarks.

Differential Revision: https://reviews.llvm.org/D26366

llvm-svn: 286169

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/OptimizationDiagnosticInfo.cpp b/llvm/lib/Analysis/OptimizationDiagnosticInfo.cpp
index 6584876f20a..0a5ef1b9b23 100644
--- a/llvm/lib/Analysis/OptimizationDiagnosticInfo.cpp
+++ b/llvm/lib/Analysis/OptimizationDiagnosticInfo.cpp
@@ -115,6 +115,8 @@ template <> struct MappingTraits<DiagnosticInfoOptimizationBase::Argument> {
   static void mapping(IO &io, DiagnosticInfoOptimizationBase::Argument &A) {
     assert(io.outputting() && "input not yet implemented");
     io.mapRequired(A.Key.data(), A.Val);
+    if (A.DLoc)
+      io.mapOptional("DebugLoc", A.DLoc);
   }
 };