Refactor: Simplify boolean conditional return statements in llvm/lib/…

…DebugInfo/DWARF

Use clang-tidy to simplify boolean conditional return statements. Patch by
Richard Thomson <legalize@xmission.com>!

Differential Revision: http://reviews.llvm.org/D9972

llvm-svn: 238132

llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp

@@ -127,10 +127,8 @@ bool DWARFFormValue::isFormClass(DWARFFormValue::FormClass FC) const {
   // In DWARF3 DW_FORM_data4 and DW_FORM_data8 served also as a section offset.
   // Don't check for DWARF version here, as some producers may still do this
   // by mistake.
-  if ((Form == DW_FORM_data4 || Form == DW_FORM_data8) &&
-      FC == FC_SectionOffset)
-    return true;
-  return false;
+  return (Form == DW_FORM_data4 || Form == DW_FORM_data8) &&
+         FC == FC_SectionOffset;
 }
 
 bool DWARFFormValue::extractValue(DataExtractor data, uint32_t *offset_ptr,

llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp

@@ -79,10 +79,7 @@ bool DWARFUnit::extractImpl(DataExtractor debug_info, uint32_t *offset_ptr) {
     return false;
 
   Abbrevs = Abbrev->getAbbreviationDeclarationSet(AbbrOffset);
-  if (Abbrevs == nullptr)
-    return false;
-
-  return true;
+  return Abbrevs != nullptr;
 }
 
 bool DWARFUnit::extract(DataExtractor debug_info, uint32_t *offset_ptr) {