[llvm] Use a range-based for loop instead of {std,llvm}::for_each (NFC) (llvm#150841)

LLVM Coding Standards discourages {std,llvm}::for_each unless we
already have a callable.

Author: kazutakahirata

llvm/lib/Target/RISCV/RISCVFrameLowering.cpp

@@ -1581,7 +1581,8 @@ void RISCVFrameLowering::determineCalleeSaves(MachineFunction &MF,
     // Set the register and all its subregisters.
     if (!MRI.def_empty(CSReg) || MRI.getUsedPhysRegsMask().test(CSReg)) {
       SavedRegs.set(CSReg);
-      llvm::for_each(SubRegs, [&](unsigned Reg) { return SavedRegs.set(Reg); });
+      for (unsigned Reg : SubRegs)
+        SavedRegs.set(Reg);
     }
 
     // Combine to super register if all of its subregisters are marked.

llvm/lib/TargetParser/RISCVISAInfo.cpp

@@ -858,16 +858,15 @@ void RISCVISAInfo::updateImplication() {
     StringRef ExtName = WorkList.pop_back_val();
     auto Range = std::equal_range(std::begin(ImpliedExts),
                                   std::end(ImpliedExts), ExtName);
-    std::for_each(Range.first, Range.second,
-                  [&](const ImpliedExtsEntry &Implied) {
-                    const char *ImpliedExt = Implied.ImpliedExt;
-                    auto [It, Inserted] = Exts.try_emplace(ImpliedExt);
-                    if (!Inserted)
-                      return;
-                    auto Version = findDefaultVersion(ImpliedExt);
-                    It->second = *Version;
-                    WorkList.push_back(ImpliedExt);
-                  });
+    for (const ImpliedExtsEntry &Implied : llvm::make_range(Range)) {
+      const char *ImpliedExt = Implied.ImpliedExt;
+      auto [It, Inserted] = Exts.try_emplace(ImpliedExt);
+      if (!Inserted)
+        continue;
+      auto Version = findDefaultVersion(ImpliedExt);
+      It->second = *Version;
+      WorkList.push_back(ImpliedExt);
+    }
   }
 
   // Add Zcd if C and D are enabled.