[NFC][Clang] Move set functions out BranchProtectionInfo. (#98451)

To reduce build times move them to TargetCodeGenInfo.

Refactor of #98329

Author: DanielKristofKiss

clang/include/clang/Basic/TargetInfo.h

@@ -32,9 +32,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/StringSet.h"
 #include "llvm/Frontend/OpenMP/OMPGridValues.h"
-#include "llvm/IR/Attributes.h"
 #include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/Function.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/VersionTuple.h"
@@ -1410,7 +1408,6 @@ class TargetInfo : public TransferrableTargetInfo,
     bool BranchProtectionPAuthLR;
     bool GuardedControlStack;
 
-  protected:
     const char *getSignReturnAddrStr() const {
       switch (SignReturnAddr) {
       case LangOptions::SignReturnAddressScopeKind::None:
@@ -1433,7 +1430,6 @@ class TargetInfo : public TransferrableTargetInfo,
       llvm_unreachable("Unexpected SignReturnAddressKeyKind");
     }
 
-  public:
     BranchProtectionInfo()
         : SignReturnAddr(LangOptions::SignReturnAddressScopeKind::None),
           SignKey(LangOptions::SignReturnAddressKeyKind::AKey),
@@ -1454,25 +1450,6 @@ class TargetInfo : public TransferrableTargetInfo,
       BranchProtectionPAuthLR = LangOpts.BranchProtectionPAuthLR;
       GuardedControlStack = LangOpts.GuardedControlStack;
     }
-
-    void setFnAttributes(llvm::Function &F) {
-      llvm::AttrBuilder FuncAttrs(F.getContext());
-      setFnAttributes(FuncAttrs);
-      F.addFnAttrs(FuncAttrs);
-    }
-
-    void setFnAttributes(llvm::AttrBuilder &FuncAttrs) {
-      if (SignReturnAddr != LangOptions::SignReturnAddressScopeKind::None) {
-        FuncAttrs.addAttribute("sign-return-address", getSignReturnAddrStr());
-        FuncAttrs.addAttribute("sign-return-address-key", getSignKeyStr());
-      }
-      if (BranchTargetEnforcement)
-        FuncAttrs.addAttribute("branch-target-enforcement");
-      if (BranchProtectionPAuthLR)
-        FuncAttrs.addAttribute("branch-protection-pauth-lr");
-      if (GuardedControlStack)
-        FuncAttrs.addAttribute("guarded-control-stack");
-    }
   };
 
   /// Determine if the Architecture in this TargetInfo supports branch

clang/lib/CodeGen/TargetInfo.cpp

@@ -19,6 +19,7 @@
 #include "clang/CodeGen/CGFunctionInfo.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/IR/Function.h"
 #include "llvm/IR/Type.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -206,6 +207,27 @@ llvm::Value *TargetCodeGenInfo::createEnqueuedBlockKernel(
   return F;
 }
 
+void TargetCodeGenInfo::setBranchProtectionFnAttributes(
+    const TargetInfo::BranchProtectionInfo &BPI, llvm::Function &F) {
+  llvm::AttrBuilder FuncAttrs(F.getContext());
+  setBranchProtectionFnAttributes(BPI, FuncAttrs);
+  F.addFnAttrs(FuncAttrs);
+}
+
+void TargetCodeGenInfo::setBranchProtectionFnAttributes(
+    const TargetInfo::BranchProtectionInfo &BPI, llvm::AttrBuilder &FuncAttrs) {
+  if (BPI.SignReturnAddr != LangOptions::SignReturnAddressScopeKind::None) {
+    FuncAttrs.addAttribute("sign-return-address", BPI.getSignReturnAddrStr());
+    FuncAttrs.addAttribute("sign-return-address-key", BPI.getSignKeyStr());
+  }
+  if (BPI.BranchTargetEnforcement)
+    FuncAttrs.addAttribute("branch-target-enforcement");
+  if (BPI.BranchProtectionPAuthLR)
+    FuncAttrs.addAttribute("branch-protection-pauth-lr");
+  if (BPI.GuardedControlStack)
+    FuncAttrs.addAttribute("guarded-control-stack");
+}
+
 namespace {
 class DefaultTargetCodeGenInfo : public TargetCodeGenInfo {
 public:

clang/lib/CodeGen/TargetInfo.h

@@ -15,11 +15,12 @@
 #define LLVM_CLANG_LIB_CODEGEN_TARGETINFO_H
 
 #include "CGBuilder.h"
-#include "CodeGenModule.h"
 #include "CGValue.h"
+#include "CodeGenModule.h"
 #include "clang/AST/Type.h"
 #include "clang/Basic/LLVM.h"
 #include "clang/Basic/SyncScope.h"
+#include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringRef.h"
 
@@ -413,6 +414,14 @@ class TargetCodeGenInfo {
     return nullptr;
   }
 
+  static void
+  setBranchProtectionFnAttributes(const TargetInfo::BranchProtectionInfo &BPI,
+                                  llvm::Function &F);
+
+  static void
+  setBranchProtectionFnAttributes(const TargetInfo::BranchProtectionInfo &BPI,
+                                  llvm::AttrBuilder &FuncAttrs);
+
 protected:
   static std::string qualifyWindowsLibrary(StringRef Lib);
 

clang/lib/CodeGen/Targets/AArch64.cpp

@@ -133,7 +133,7 @@ class AArch64TargetCodeGenInfo : public TargetCodeGenInfo {
       }
     }
     auto *Fn = cast<llvm::Function>(GV);
-    BPI.setFnAttributes(*Fn);
+    setBranchProtectionFnAttributes(BPI, *Fn);
   }
 
   bool isScalarizableAsmOperand(CodeGen::CodeGenFunction &CGF,

clang/lib/CodeGen/Targets/ARM.cpp

@@ -151,9 +151,8 @@ class ARMTargetCodeGenInfo : public TargetCodeGenInfo {
               D->getLocation(),
               diag::warn_target_unsupported_branch_protection_attribute)
               << Arch;
-        } else {
-          BPI.setFnAttributes(*Fn);
-        }
+        } else
+          setBranchProtectionFnAttributes(BPI, (*Fn));
       } else if (CGM.getLangOpts().BranchTargetEnforcement ||
                  CGM.getLangOpts().hasSignReturnAddress()) {
         // If the Branch Protection attribute is missing, validate the target
@@ -168,7 +167,7 @@ class ARMTargetCodeGenInfo : public TargetCodeGenInfo {
     } else if (CGM.getTarget().isBranchProtectionSupportedArch(
                    CGM.getTarget().getTargetOpts().CPU)) {
       TargetInfo::BranchProtectionInfo BPI(CGM.getLangOpts());
-      BPI.setFnAttributes(*Fn);
+      setBranchProtectionFnAttributes(BPI, (*Fn));
     }
 
     const ARMInterruptAttr *Attr = FD->getAttr<ARMInterruptAttr>();