From 546c4438d57052e97d047c463b69b9e4a5c67001 Mon Sep 17 00:00:00 2001
From: Teresa Johnson <tejohnson@google.com>
Date: Fri, 24 Mar 2017 12:50:45 +0000
Subject: [PATCH] Remove stale and unused (MC)TargetOptions comparators.

Summary:
I discovered accidentally that the operator== for TargetOptions
is stale - it is missing many fields that have been added over
the recent years. It isn't used, so remove it. Ditto for the
comparator in MCTargetOptions, which doesn't seem stale yet but is
unused.

Reviewers: echristo

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D31301

llvm-svn: 298700
---
 llvm/include/llvm/MC/MCTargetOptions.h   | 25 ---------------------
 llvm/include/llvm/Target/TargetOptions.h | 37 --------------------------------
 2 files changed, 62 deletions(-)

diff --git a/llvm/include/llvm/MC/MCTargetOptions.h b/llvm/include/llvm/MC/MCTargetOptions.h
index 65a7ec8..06f58d4 100644
--- a/llvm/include/llvm/MC/MCTargetOptions.h
+++ b/llvm/include/llvm/MC/MCTargetOptions.h
@@ -67,31 +67,6 @@ public:
   StringRef getABIName() const;
 };
 
-inline bool operator==(const MCTargetOptions &LHS, const MCTargetOptions &RHS) {
-#define ARE_EQUAL(X) LHS.X == RHS.X
-  return (ARE_EQUAL(SanitizeAddress) &&
-          ARE_EQUAL(MCRelaxAll) &&
-          ARE_EQUAL(MCNoExecStack) &&
-          ARE_EQUAL(MCFatalWarnings) &&
-          ARE_EQUAL(MCNoWarn) &&
-          ARE_EQUAL(MCNoDeprecatedWarn) &&
-          ARE_EQUAL(MCSaveTempLabels) &&
-          ARE_EQUAL(MCUseDwarfDirectory) &&
-          ARE_EQUAL(MCIncrementalLinkerCompatible) &&
-          ARE_EQUAL(MCPIECopyRelocations) &&
-          ARE_EQUAL(ShowMCEncoding) &&
-          ARE_EQUAL(ShowMCInst) &&
-          ARE_EQUAL(AsmVerbose) &&
-          ARE_EQUAL(DwarfVersion) &&
-          ARE_EQUAL(ABIName) &&
-          ARE_EQUAL(IASSearchPaths));
-#undef ARE_EQUAL
-}
-
-inline bool operator!=(const MCTargetOptions &LHS, const MCTargetOptions &RHS) {
-  return !(LHS == RHS);
-}
-
 } // end namespace llvm
 
 #endif // LLVM_MC_MCTARGETOPTIONS_H
diff --git a/llvm/include/llvm/Target/TargetOptions.h b/llvm/include/llvm/Target/TargetOptions.h
index 93c8c13..7cc33f2 100644
--- a/llvm/include/llvm/Target/TargetOptions.h
+++ b/llvm/include/llvm/Target/TargetOptions.h
@@ -263,43 +263,6 @@ namespace llvm {
     MCTargetOptions MCOptions;
   };
 
-// Comparison operators:
-
-
-inline bool operator==(const TargetOptions &LHS,
-                       const TargetOptions &RHS) {
-#define ARE_EQUAL(X) LHS.X == RHS.X
-  return
-    ARE_EQUAL(UnsafeFPMath) &&
-    ARE_EQUAL(NoInfsFPMath) &&
-    ARE_EQUAL(NoNaNsFPMath) &&
-    ARE_EQUAL(NoTrappingFPMath) &&
-    ARE_EQUAL(NoSignedZerosFPMath) &&
-    ARE_EQUAL(HonorSignDependentRoundingFPMathOption) &&
-    ARE_EQUAL(NoZerosInBSS) &&
-    ARE_EQUAL(GuaranteedTailCallOpt) &&
-    ARE_EQUAL(StackAlignmentOverride) &&
-    ARE_EQUAL(EnableFastISel) &&
-    ARE_EQUAL(UseInitArray) &&
-    ARE_EQUAL(TrapUnreachable) &&
-    ARE_EQUAL(EmulatedTLS) &&
-    ARE_EQUAL(FloatABIType) &&
-    ARE_EQUAL(AllowFPOpFusion) &&
-    ARE_EQUAL(ThreadModel) &&
-    ARE_EQUAL(EABIVersion) &&
-    ARE_EQUAL(DebuggerTuning) &&
-    ARE_EQUAL(FPDenormalMode) &&
-    ARE_EQUAL(ExceptionModel) &&
-    ARE_EQUAL(MCOptions) &&
-    ARE_EQUAL(EnableIPRA);
-#undef ARE_EQUAL
-}
-
-inline bool operator!=(const TargetOptions &LHS,
-                       const TargetOptions &RHS) {
-  return !(LHS == RHS);
-}
-
 } // End llvm namespace
 
 #endif
-- 
2.7.4