Reapply 68847.

Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68964 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 3 deletions

diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 251e96a771..cc425e5119 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -377,11 +377,23 @@ bool FastISel::SelectCall(User *I) {
 
       // Record the source line.
       unsigned Line = Subprogram.getLineNumber();
-      DW->RecordSourceLine(Line, 0, SrcFile);
+      unsigned LabelID = DW->RecordSourceLine(Line, 0, SrcFile);
       setCurDebugLoc(DebugLoc::get(MF.getOrCreateDebugLocID(SrcFile, Line, 0)));
 
-      // llvm.dbg.func_start also defines beginning of function scope.
-      DW->RecordRegionStart(cast<GlobalVariable>(FSI->getSubprogram()));
+      std::string SPName;
+      Subprogram.getLinkageName(SPName);
+      if (!SPName.empty() 
+          && strcmp(SPName.c_str(), MF.getFunction()->getNameStart())) {
+        // This is a beginning of inlined function.
+        DW->RecordRegionStart(cast<GlobalVariable>(FSI->getSubprogram()), 
+                              LabelID);
+        const TargetInstrDesc &II = TII.get(TargetInstrInfo::DBG_LABEL);
+        BuildMI(MBB, DL, II).addImm(LabelID);
+        DW->RecordInlineInfo(Subprogram.getGV(), LabelID);
+      } else {
+        // llvm.dbg.func_start also defines beginning of function scope.
+        DW->RecordRegionStart(cast<GlobalVariable>(FSI->getSubprogram()));
+      }
     }
 
     return true;