[dsymutil] Generate Apple accelerator tables

This patch adds support for generating accelerator tables in dsymutil.
This feature was already present in our internal repository but not yet
upstreamed because it requires changes to the Apple accelerator table
implementation.

Differential revision: https://reviews.llvm.org/D42501

llvm-svn: 323655

1 files changed, 14 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp b/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp
index 026573b26a1..5c80206a1d7 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp
@@ -72,6 +72,8 @@ void AppleAccelTableHeader::setBucketAndHashCount(uint32_t HashCount) {
 
 constexpr AppleAccelTableHeader::Atom AppleAccelTableTypeData::Atoms[];
 constexpr AppleAccelTableHeader::Atom AppleAccelTableOffsetData::Atoms[];
+constexpr AppleAccelTableHeader::Atom AppleAccelTableStaticOffsetData::Atoms[];
+constexpr AppleAccelTableHeader::Atom AppleAccelTableStaticTypeData::Atoms[];
 
 void AppleAccelTableBase::emitHeader(AsmPrinter *Asm) { Header.emit(Asm); }
 
@@ -219,3 +221,15 @@ void AppleAccelTableTypeData::emit(AsmPrinter *Asm) const {
   Asm->EmitInt16(Die->getTag());
   Asm->EmitInt8(0);
 }
+
+void AppleAccelTableStaticOffsetData::emit(AsmPrinter *Asm) const {
+  Asm->EmitInt32(Offset);
+}
+
+void AppleAccelTableStaticTypeData::emit(AsmPrinter *Asm) const {
+  Asm->EmitInt32(Offset);
+  Asm->EmitInt16(Tag);
+  Asm->EmitInt8(ObjCClassIsImplementation ? dwarf::DW_FLAG_type_implementation
+                                          : 0);
+  Asm->EmitInt32(QualifiedNameHash);
+}