[BOLT] Remove unused parameter. NFC (llvm#161617)

`Skip` parameter not used/set inside `analyzeRelocation()`.

Author: maksfb

bolt/include/bolt/Rewrite/RewriteInstance.h

@@ -249,12 +249,11 @@ class RewriteInstance {
   /// Analyze relocation \p Rel.
   /// Return true if the relocation was successfully processed, false otherwise.
   /// The \p SymbolName, \p SymbolAddress, \p Addend and \p ExtractedValue
-  /// parameters will be set on success. The \p Skip argument indicates
-  /// that the relocation was analyzed, but it must not be processed.
+  /// parameters will be set on success.
   bool analyzeRelocation(const object::RelocationRef &Rel, uint32_t &RType,
                          std::string &SymbolName, bool &IsSectionRelocation,
                          uint64_t &SymbolAddress, int64_t &Addend,
-                         uint64_t &ExtractedValue, bool &Skip) const;
+                         uint64_t &ExtractedValue) const;
 
   /// Rewrite non-allocatable sections with modifications.
   void rewriteNoteSections();

bolt/lib/Rewrite/RewriteInstance.cpp

@@ -2274,8 +2274,7 @@ uint32_t getRelocationSymbol(const ELFObjectFileBase *Obj,
 bool RewriteInstance::analyzeRelocation(
     const RelocationRef &Rel, uint32_t &RType, std::string &SymbolName,
     bool &IsSectionRelocation, uint64_t &SymbolAddress, int64_t &Addend,
-    uint64_t &ExtractedValue, bool &Skip) const {
-  Skip = false;
+    uint64_t &ExtractedValue) const {
   if (!Relocation::isSupported(RType))
     return false;
 
@@ -2707,9 +2706,8 @@ void RewriteInstance::handleRelocation(const SectionRef &RelocatedSection,
   int64_t Addend;
   uint64_t ExtractedValue;
   bool IsSectionRelocation;
-  bool Skip;
   if (!analyzeRelocation(Rel, RType, SymbolName, IsSectionRelocation,
-                         SymbolAddress, Addend, ExtractedValue, Skip)) {
+                         SymbolAddress, Addend, ExtractedValue)) {
     LLVM_DEBUG({
       dbgs() << "BOLT-WARNING: failed to analyze relocation @ offset = "
              << formatv("{0:x}; type name = {1}\n", Rel.getOffset(), TypeName);
@@ -2718,14 +2716,6 @@ void RewriteInstance::handleRelocation(const SectionRef &RelocatedSection,
     return;
   }
 
-  if (Skip) {
-    LLVM_DEBUG({
-      dbgs() << "BOLT-DEBUG: skipping relocation @ offset = "
-             << formatv("{0:x}; type name = {1}\n", Rel.getOffset(), TypeName);
-    });
-    return;
-  }
-
   if (!IsFromCode && !IsWritable && (IsX86 || IsAArch64) &&
       Relocation::isPCRelative(RType)) {
     BinaryData *BD = BC->getBinaryDataContainingAddress(Rel.getOffset());