[Core] Remove use of ClangASTContext in DumpDataExtractor
Summary:
DumpDataExtractor uses ClangASTContext in order to get the proper llvm
fltSemantics for the type it needs so that it can dump floats in a more
precise way. However, there's no reason that this behavior needs to be
specific ClangASTContext. Instead, I think it makes sense to ask
TypeSystems for the float semantics for a type of a given size.
Differential Revision: https://reviews.llvm.org/D67239
llvm-svn: 371258
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp
index 3df9ccd..f1331cc 100644
--- a/lldb/source/Symbol/ClangASTContext.cpp
+++ b/lldb/source/Symbol/ClangASTContext.cpp
@@ -4991,6 +4991,22 @@
}
// Exploring the type
+const llvm::fltSemantics &
+ClangASTContext::GetFloatTypeSemantics(size_t byte_size) {
+ if (auto *ast = getASTContext()) {
+ const size_t bit_size = byte_size * 8;
+ if (bit_size == ast->getTypeSize(ast->FloatTy))
+ return ast->getFloatTypeSemantics(ast->FloatTy);
+ else if (bit_size == ast->getTypeSize(ast->DoubleTy))
+ return ast->getFloatTypeSemantics(ast->DoubleTy);
+ else if (bit_size == ast->getTypeSize(ast->LongDoubleTy))
+ return ast->getFloatTypeSemantics(ast->LongDoubleTy);
+ else if (bit_size == ast->getTypeSize(ast->HalfTy))
+ return ast->getFloatTypeSemantics(ast->HalfTy);
+ }
+ return llvm::APFloatBase::Bogus();
+}
+
Optional<uint64_t>
ClangASTContext::GetBitSize(lldb::opaque_compiler_type_t type,
ExecutionContextScope *exe_scope) {