[llvm] r186601 - Revert "Remove DIBuilder cache of variable TheCU and change the few"

David Blaikie dblaikie at gmail.com
Fri Jul 19 15:33:45 PDT 2013


On Thu, Jul 18, 2013 at 12:13 PM, Eric Christopher <echristo at gmail.com> wrote:
> Author: echristo
> Date: Thu Jul 18 14:13:06 2013
> New Revision: 186601
>
> URL: http://llvm.org/viewvc/llvm-project?rev=186601&view=rev
> Log:
> Revert "Remove DIBuilder cache of variable TheCU and change the few"
>
> This reverts commit r186599 as I didn't want to commit this yet.

Seemed like a reasonable commit - any reason not to?

>
> Modified:
>     llvm/trunk/include/llvm/DIBuilder.h
>     llvm/trunk/lib/IR/DIBuilder.cpp
>     llvm/trunk/lib/Transforms/Instrumentation/DebugIR.cpp
>
> Modified: llvm/trunk/include/llvm/DIBuilder.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DIBuilder.h?rev=186601&r1=186600&r2=186601&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/DIBuilder.h (original)
> +++ llvm/trunk/include/llvm/DIBuilder.h Thu Jul 18 14:13:06 2013
> @@ -29,7 +29,6 @@ namespace llvm {
>    class MDNode;
>    class StringRef;
>    class DIBasicType;
> -  class DICompileUnit;
>    class DICompositeType;
>    class DIDerivedType;
>    class DIDescriptor;
> @@ -54,6 +53,7 @@ namespace llvm {
>      private:
>      Module &M;
>      LLVMContext & VMContext;
> +    MDNode *TheCU;
>
>      MDNode *TempEnumTypes;
>      MDNode *TempRetainTypes;
> @@ -81,6 +81,7 @@ namespace llvm {
>
>      public:
>      explicit DIBuilder(Module &M);
> +    const MDNode *getCU() { return TheCU; }
>      enum ComplexAddrKind { OpPlus=1, OpDeref };
>
>      /// finalize - Construct any deferred debug info descriptors.
> @@ -102,11 +103,10 @@ namespace llvm {
>      ///                 Objective-C.
>      /// @param SplitName The name of the file that we'll split debug info out
>      ///                  into.
> -    DICompileUnit createCompileUnit(unsigned Lang, StringRef File,
> -                                    StringRef Dir, StringRef Producer,
> -                                    bool isOptimized, StringRef Flags,
> -                                    unsigned RV,
> -                                    StringRef SplitName = StringRef());
> +    void createCompileUnit(unsigned Lang, StringRef File, StringRef Dir,
> +                           StringRef Producer, bool isOptimized,
> +                           StringRef Flags, unsigned RV,
> +                           StringRef SplitName = StringRef());
>
>      /// createFile - Create a file descriptor to hold debugging information
>      /// for a file.
>
> Modified: llvm/trunk/lib/IR/DIBuilder.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DIBuilder.cpp?rev=186601&r1=186600&r2=186601&view=diff
> ==============================================================================
> --- llvm/trunk/lib/IR/DIBuilder.cpp (original)
> +++ llvm/trunk/lib/IR/DIBuilder.cpp Thu Jul 18 14:13:06 2013
> @@ -30,7 +30,7 @@ static Constant *GetTagConstant(LLVMCont
>  }
>
>  DIBuilder::DIBuilder(Module &m)
> -  : M(m), VMContext(M.getContext()), TempEnumTypes(0),
> +  : M(m), VMContext(M.getContext()), TheCU(0), TempEnumTypes(0),
>      TempRetainTypes(0), TempSubprograms(0), TempGVs(0), DeclareFn(0),
>      ValueFn(0)
>  {}
> @@ -86,11 +86,10 @@ static MDNode *createFilePathPair(LLVMCo
>
>  /// createCompileUnit - A CompileUnit provides an anchor for all debugging
>  /// information generated during this instance of compilation.
> -DICompileUnit DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
> -                                           StringRef Directory,
> -                                           StringRef Producer, bool isOptimized,
> -                                           StringRef Flags, unsigned RunTimeVer,
> -                                           StringRef SplitName) {
> +void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
> +                                  StringRef Directory, StringRef Producer,
> +                                  bool isOptimized, StringRef Flags,
> +                                  unsigned RunTimeVer, StringRef SplitName) {
>    assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) ||
>            (Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) &&
>           "Invalid Language tag");
> @@ -122,14 +121,11 @@ DICompileUnit DIBuilder::createCompileUn
>      TempImportedModules,
>      MDString::get(VMContext, SplitName)
>    };
> -
> -  MDNode *CUNode = MDNode::get(VMContext, Elts);
> +  TheCU = DICompileUnit(MDNode::get(VMContext, Elts));
>
>    // Create a named metadata so that it is easier to find cu in a module.
>    NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu");
> -  NMD->addOperand(CUNode);
> -
> -  return DICompileUnit(CUNode);
> +  NMD->addOperand(TheCU);
>  }
>
>  static DIImportedEntity
> @@ -220,7 +216,7 @@ DIBasicType DIBuilder::createUnspecified
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
>      NULL, // Filename
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, Name),
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
>      ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
> @@ -248,7 +244,7 @@ DIBuilder::createBasicType(StringRef Nam
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
>      NULL, // File/directory name
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, Name),
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
>      ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
> @@ -267,7 +263,7 @@ DIDerivedType DIBuilder::createQualified
>    Value *Elts[] = {
>      GetTagConstant(VMContext, Tag),
>      NULL, // Filename
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, StringRef()), // Empty name.
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
>      ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
> @@ -287,7 +283,7 @@ DIBuilder::createPointerType(DIType Poin
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
>      NULL, // Filename
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, Name),
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
>      ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
> @@ -305,7 +301,7 @@ DIDerivedType DIBuilder::createMemberPoi
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_ptr_to_member_type),
>      NULL, // Filename
> -    NULL, // Unused
> +    NULL, //TheCU,
>      NULL,
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
>      ConstantInt::get(Type::getInt64Ty(VMContext), 0),
> @@ -741,7 +737,7 @@ DICompositeType DIBuilder::createArrayTy
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
>      NULL, // Filename/Directory,
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, ""),
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0),
>      ConstantInt::get(Type::getInt64Ty(VMContext), Size),
> @@ -764,7 +760,7 @@ DICompositeType DIBuilder::createVectorT
>    Value *Elts[] = {
>      GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
>      NULL, // Filename/Directory,
> -    NULL, // Unused
> +    NULL, //TheCU,
>      MDString::get(VMContext, ""),
>      ConstantInt::get(Type::getInt32Ty(VMContext), 0),
>      ConstantInt::get(Type::getInt64Ty(VMContext), Size),
>
> Modified: llvm/trunk/lib/Transforms/Instrumentation/DebugIR.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/DebugIR.cpp?rev=186601&r1=186600&r2=186601&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Instrumentation/DebugIR.cpp (original)
> +++ llvm/trunk/lib/Transforms/Instrumentation/DebugIR.cpp Thu Jul 18 14:13:06 2013
> @@ -289,9 +289,9 @@ private:
>            "LLVM Version " STR(LLVM_VERSION_MAJOR) "." STR(LLVM_VERSION_MINOR);
>      }
>
> -    CUNode =
> -        Builder.createCompileUnit(dwarf::DW_LANG_C99, Filename, Directory,
> -                                  Producer, IsOptimized, Flags, RuntimeVersion);
> +    Builder.createCompileUnit(dwarf::DW_LANG_C99, Filename, Directory, Producer,
> +                              IsOptimized, Flags, RuntimeVersion);
> +    CUNode = Builder.getCU();
>
>      if (CUToReplace)
>        CUToReplace->replaceAllUsesWith(const_cast<MDNode *>(CUNode));
>
>
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