[llvm-commits] [llvm-gcc-4.2] r44448 - in /llvm-gcc-4.2/trunk/gcc: llvm-backend.cpp llvm-debug.cpp llvm-debug.h testsuite/gcc.dg/pch/dwarf-1.c testsuite/gcc.dg/pch/dwarf-1.hs

[Devang Patel]

Author: dpatel
Date: Thu Nov 29 19:05:58 2007
New Revision: 44448

URL: http://llvm.org/viewvc/llvm-project?rev=44448&view=rev
Log:
Restore debug info after reading PCH.


Added:
    llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.c
    llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.hs
Modified:
    llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp
    llvm-gcc-4.2/trunk/gcc/llvm-debug.cpp
    llvm-gcc-4.2/trunk/gcc/llvm-debug.h

Modified: llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp?rev=44448&r1=44447&r2=44448&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-backend.cpp Thu Nov 29 19:05:58 2007
@@ -243,6 +243,9 @@
   readLLVMTypesStringTable();
   readLLVMValues();
 
+  if (TheDebugInfo)
+    TheDebugInfo->readLLVMDebugInfo();
+
   flag_llvm_pch_read = 1;
 }
 

Modified: llvm-gcc-4.2/trunk/gcc/llvm-debug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-debug.cpp?rev=44448&r1=44447&r2=44448&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-debug.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-debug.cpp Thu Nov 29 19:05:58 2007
@@ -878,6 +878,36 @@
   return Unit;
 }
 
+/// readLLVMDebugInfo - Read debug info from PCH file. TheModule already
+/// represents module read from PCH file. Restore AnchorDesc from PCH file.
+void DebugInfo::readLLVMDebugInfo() {
+  MachineModuleInfo MMI;
+  MMI.AnalyzeModule(*TheModule);
 
+  std::vector<SubprogramDesc *> Subprograms =
+    MMI.getAnchoredDescriptors<SubprogramDesc>(*TheModule);
+
+  if (!Subprograms.empty())
+    SubprogramAnchor = Subprograms[0]->getAnchor();
+
+  std::vector<CompileUnitDesc *> CUs =
+    MMI.getAnchoredDescriptors<CompileUnitDesc>(*TheModule);
+
+  if (!CUs.empty())
+    CompileUnitAnchor = CUs[0]->getAnchor();
+
+  std::vector<GlobalVariableDesc *> GVs =
+    MMI.getAnchoredDescriptors<GlobalVariableDesc>(*TheModule);
+
+  if (!GVs.empty())
+    GlobalVariableAnchor = GVs[0]->getAnchor();
+
+  const std::map<GlobalVariable *, DebugInfoDesc *> &GlobalDescs
+    = MMI.getDIDeserializer()->getGlobalDescs();
+  for (std::map<GlobalVariable *, DebugInfoDesc *>::const_iterator 
+         I = GlobalDescs.begin(), E = GlobalDescs.end(); I != E; ++I) 
+    SR.addDescriptor(I->second, I->first);
+}
+  
 /* LLVM LOCAL end (ENTIRE FILE!)  */
 

Modified: llvm-gcc-4.2/trunk/gcc/llvm-debug.h
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-debug.h?rev=44448&r1=44447&r2=44448&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-debug.h (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-debug.h Thu Nov 29 19:05:58 2007
@@ -123,7 +123,9 @@
   /// getOrCreateCompileUnit - Get the compile unit from the cache or create a
   /// new one if necessary.
   CompileUnitDesc *getOrCreateCompileUnit(const std::string &FullPath);
-  
+
+  /// readLLVMDebugInfo - Read debug info from PCH file.
+  void readLLVMDebugInfo();
 };
 
 } // end namespace llvm

Added: llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.c
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.c?rev=44448&view=auto

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.c (added)
+++ llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.c Thu Nov 29 19:05:58 2007
@@ -0,0 +1,6 @@
+#include "dwarf-1.h"
+
+int main() {
+  foo();
+  return 0;
+}

Added: llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.hs
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.hs?rev=44448&view=auto

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.hs (added)
+++ llvm-gcc-4.2/trunk/gcc/testsuite/gcc.dg/pch/dwarf-1.hs Thu Nov 29 19:05:58 2007
@@ -0,0 +1,3 @@
+int foo() {
+  return 42;
+}