Add r224985 back with fixes.

[oota-llvm.git] / lib / Target / AArch64 / MCTargetDesc / AArch64AsmBackend.cpp

diff --git a/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp b/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
index 27cbac9f12e208d447a23883bcccde765e51227f..423da6500c48bb38065abed1244a951d8e73a8a2 100644 (file)
--- a/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
+++ b/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
@@ -317,42 +317,6 @@ public:
                                          MachO::CPU_SUBTYPE_ARM64_ALL);
   }
 
-  bool doesSectionRequireSymbols(const MCSection &Section) const override {
-    // Any section for which the linker breaks things into atoms needs to
-    // preserve symbols, including assembler local symbols, to identify
-    // those atoms. These sections are:
-    // Sections of type:
-    //
-    //    S_CSTRING_LITERALS  (e.g. __cstring)
-    //    S_LITERAL_POINTERS  (e.g.  objc selector pointers)
-    //    S_16BYTE_LITERALS, S_8BYTE_LITERALS, S_4BYTE_LITERALS
-    //
-    // Sections named:
-    //
-    //    __TEXT,__eh_frame
-    //    __TEXT,__ustring
-    //    __DATA,__cfstring
-    //    __DATA,__objc_classrefs
-    //    __DATA,__objc_catlist
-    //
-    // FIXME: It would be better if the compiler used actual linker local
-    // symbols for each of these sections rather than preserving what
-    // are ostensibly assembler local symbols.
-    const MCSectionMachO &SMO = static_cast<const MCSectionMachO &>(Section);
-    return (SMO.getType() == MachO::S_CSTRING_LITERALS ||
-            SMO.getType() == MachO::S_4BYTE_LITERALS ||
-            SMO.getType() == MachO::S_8BYTE_LITERALS ||
-            SMO.getType() == MachO::S_16BYTE_LITERALS ||
-            SMO.getType() == MachO::S_LITERAL_POINTERS ||
-            (SMO.getSegmentName() == "__TEXT" &&
-             (SMO.getSectionName() == "__eh_frame" ||
-              SMO.getSectionName() == "__ustring")) ||
-            (SMO.getSegmentName() == "__DATA" &&
-             (SMO.getSectionName() == "__cfstring" ||
-              SMO.getSectionName() == "__objc_classrefs" ||
-              SMO.getSectionName() == "__objc_catlist")));
-  }
-
   /// \brief Generate the compact unwind encoding from the CFI directives.
   uint32_t generateCompactUnwindEncoding(
                              ArrayRef<MCCFIInstruction> Instrs) const override {