Remove CFIFuncName from TargetOptions as it is currently unused.

llvm-svn: 235268

llvm/include/llvm/CodeGen/CommandFlags.h

@@ -231,21 +231,6 @@ FCFI("fcfi",
      cl::desc("Apply forward-edge control-flow integrity"),
      cl::init(false));
 
-// Note that this option is linked to the cfi-enforcing option above: if
-// cfi-enforcing is set, then the cfi-func-name option is entirely ignored. If
-// cfi-enforcing is false and no cfi-func-name is set, then a default function
-// will be generated that ignores all CFI violations. The expected signature for
-// functions called with CFI violations is
-//
-// void (i8*, i8*)
-//
-// The first pointer is a C string containing the name of the function in which
-// the violation occurs, and the second pointer is the pointer that violated
-// CFI.
-cl::opt<std::string>
-CFIFuncName("cfi-func-name", cl::desc("The name of the CFI function to call"),
-            cl::init(""));
-
 // Common utility function tightly tied to the options listed here. Initializes
 // a TargetOptions object with CodeGen flags and returns it.
 static inline TargetOptions InitTargetOptionsFromCodeGenFlags() {

llvm/include/llvm/Target/TargetOptions.h

@@ -73,8 +73,7 @@ namespace llvm {
           DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
           TrapFuncName(), FloatABIType(FloatABI::Default),
           AllowFPOpFusion(FPOpFusion::Standard), JTType(JumpTable::Single),
-          FCFI(false), ThreadModel(ThreadModel::POSIX),
-          CFIFuncName() {}
+          FCFI(false), ThreadModel(ThreadModel::POSIX) {}
 
     /// PrintMachineCode - This flag is enabled when the -print-machineinstrs
     /// option is specified on the command line, and should enable debugging
@@ -230,12 +229,6 @@ namespace llvm {
     /// for things like atomics
     ThreadModel::Model ThreadModel;
 
-    /// getCFIFuncName - If this returns a non-empty string, then this is the
-    /// name of the function that will be called for each CFI violation in
-    /// non-enforcing mode.
-    std::string CFIFuncName;
-    StringRef getCFIFuncName() const;
-
     /// Machine level options.
     MCTargetOptions MCOptions;
   };
@@ -266,7 +259,6 @@ inline bool operator==(const TargetOptions &LHS,
     ARE_EQUAL(JTType) &&
     ARE_EQUAL(FCFI) &&
     ARE_EQUAL(ThreadModel) &&
-    ARE_EQUAL(CFIFuncName) &&
     ARE_EQUAL(MCOptions);
 #undef ARE_EQUAL
 }

llvm/lib/CodeGen/TargetOptionsImpl.cpp

@@ -51,9 +51,3 @@ bool TargetOptions::HonorSignDependentRoundingFPMath() const {
 StringRef TargetOptions::getTrapFunctionName() const {
   return TrapFuncName;
 }
-
-/// getCFIFuncName - If this returns a non-empty string, then it is the name of
-/// the function that gets called on CFI violations in CFI non-enforcing mode.
-StringRef TargetOptions::getCFIFuncName() const {
-  return CFIFuncName;
-}