diff options
| author | Saleem Abdulrasool <compnerd@compnerd.org> | 2017-01-01 19:16:02 +0000 |
|---|---|---|
| committer | Saleem Abdulrasool <compnerd@compnerd.org> | 2017-01-01 19:16:02 +0000 |
| commit | a9e1450b07abca81a4eae8a88998771318f514f1 (patch) | |
| tree | 6cd983cc6154dea31020d606cd41b40eceed6683 /clang/lib | |
| parent | 0e3ae439cfcb8a6843e1916e6a9a83eeb4d12622 (diff) | |
| download | bcm5719-llvm-a9e1450b07abca81a4eae8a88998771318f514f1.tar.gz bcm5719-llvm-a9e1450b07abca81a4eae8a88998771318f514f1.zip | |
CodeGen: update comment about RTTI field
The MS ABI RTTI has a reserved field which is used as a cache for the
demangled name. It must be zero-initialized, which is used as a hint by
the runtime to say that the cache has not been populated. Since this
field is populated at runtime, the RTTI structures must be placed in the
.data section rather than .rdata. NFC
llvm-svn: 290799
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/MicrosoftCXXABI.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/MicrosoftCXXABI.cpp b/clang/lib/CodeGen/MicrosoftCXXABI.cpp index 1576483770a..38df455011e 100644 --- a/clang/lib/CodeGen/MicrosoftCXXABI.cpp +++ b/clang/lib/CodeGen/MicrosoftCXXABI.cpp @@ -3536,7 +3536,7 @@ llvm::GlobalVariable *MSRTTIBuilder::getClassHierarchyDescriptor() { // Initialize the base class ClassHierarchyDescriptor. llvm::Constant *Fields[] = { - llvm::ConstantInt::get(CGM.IntTy, 0), // Unknown + llvm::ConstantInt::get(CGM.IntTy, 0), // reserved by the runtime llvm::ConstantInt::get(CGM.IntTy, Flags), llvm::ConstantInt::get(CGM.IntTy, Classes.size()), ABI.getImageRelativeConstant(llvm::ConstantExpr::getInBoundsGetElementPtr( |
