Use llvm::APFloat for formatting if a target is available. Each target when debugging has a "ASTContext" that helps us to use the correct floating point semantics. Now that APFloat supports toString we now use that. If we don't have a target, we still fall back on the old display methodology, but the important formatting should always have a target available and thus use the compiler floating point code.
Modified the test programs to use floating point constants that always will display correctly. We had some numbers that were being rounded, and now that we are using clang, we no longer round them and we get more correct results.
llvm-svn: 183792
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp
index a69343b..73ed509 100644
--- a/lldb/source/Symbol/ClangASTContext.cpp
+++ b/lldb/source/Symbol/ClangASTContext.cpp
@@ -6682,6 +6682,24 @@
return 0;
}
+lldb::clang_type_t
+ClangASTContext::GetFloatTypeFromBitSize (clang::ASTContext *ast,
+ size_t bit_size)
+{
+ if (ast)
+ {
+ if (bit_size == ast->getTypeSize(ast->FloatTy))
+ return ast->FloatTy.getAsOpaquePtr();
+ else if (bit_size == ast->getTypeSize(ast->DoubleTy))
+ return ast->DoubleTy.getAsOpaquePtr();
+ else if (bit_size == ast->getTypeSize(ast->LongDoubleTy))
+ return ast->LongDoubleTy.getAsOpaquePtr();
+ else if (bit_size == ast->getTypeSize(ast->HalfTy))
+ return ast->HalfTy.getAsOpaquePtr();
+ }
+ return NULL;
+}
+
unsigned
ClangASTContext::GetTypeQualifiers(clang_type_t clang_type)
{
@@ -6704,7 +6722,7 @@
bool
ClangASTContext::GetCompleteType (clang_type_t clang_type)
-{
+{
return ClangASTContext::GetCompleteType (getASTContext(), clang_type);
}