[SandboxIR][NFC] Use accessor for DataLayout rather than passing it down (#111447)

Author: Sterling-Augustine

llvm/include/llvm/SandboxIR/Utils.h

@@ -71,9 +71,9 @@ class Utils {
   /// \Returns the gap between the memory locations accessed by \p I0 and
   /// \p I1 in bytes.
   template <typename LoadOrStoreT>
-  static std::optional<int>
-  getPointerDiffInBytes(LoadOrStoreT *I0, LoadOrStoreT *I1, ScalarEvolution &SE,
-                        const DataLayout &DL) {
+  static std::optional<int> getPointerDiffInBytes(LoadOrStoreT *I0,
+                                                  LoadOrStoreT *I1,
+                                                  ScalarEvolution &SE) {
     static_assert(std::is_same_v<LoadOrStoreT, LoadInst> ||
                       std::is_same_v<LoadOrStoreT, StoreInst>,
                   "Expected sandboxir::Load or sandboxir::Store!");
@@ -84,17 +84,17 @@ class Utils {
     if (Ptr0 != Ptr1)
       return false;
     llvm::Type *ElemTy = llvm::Type::getInt8Ty(SE.getContext());
-    return getPointersDiff(ElemTy, Opnd0, ElemTy, Opnd1, DL, SE,
-                           /*StrictCheck=*/false, /*CheckType=*/false);
+    return getPointersDiff(ElemTy, Opnd0, ElemTy, Opnd1, I0->getDataLayout(),
+                           SE, /*StrictCheck=*/false, /*CheckType=*/false);
   }
 
   /// \Returns true if \p I0 accesses a memory location lower than \p I1.
   /// Returns false if the difference cannot be determined, if the memory
   /// locations are equal, or if I1 accesses a memory location greater than I0.
   template <typename LoadOrStoreT>
   static bool atLowerAddress(LoadOrStoreT *I0, LoadOrStoreT *I1,
-                             ScalarEvolution &SE, const DataLayout &DL) {
-    auto Diff = getPointerDiffInBytes(I0, I1, SE, DL);
+                             ScalarEvolution &SE) {
+    auto Diff = getPointerDiffInBytes(I0, I1, SE);
     if (!Diff)
       return false;
     return *Diff > 0;

llvm/unittests/SandboxIR/UtilsTest.cpp

@@ -119,21 +119,21 @@ define void @foo(ptr %ptr) {
   [[maybe_unused]] auto *V3L3 = cast<sandboxir::LoadInst>(&*It++);
 
   // getPointerDiffInBytes
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, L1, SE, DL), 4);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, L2, SE, DL), 8);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L1, L0, SE, DL), -4);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V2L0, SE, DL), 0);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, L1, SE), 4);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, L2, SE), 8);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L1, L0, SE), -4);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V2L0, SE), 0);
 
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V2L1, SE, DL), 4);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V3L1, SE, DL), 4);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L0, V2L2, SE, DL), 8);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L0, V2L3, SE, DL), 12);
-  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L3, V2L0, SE, DL), -12);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V2L1, SE), 4);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(L0, V3L1, SE), 4);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L0, V2L2, SE), 8);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L0, V2L3, SE), 12);
+  EXPECT_EQ(*sandboxir::Utils::getPointerDiffInBytes(V2L3, V2L0, SE), -12);
 
   // atLowerAddress
-  EXPECT_TRUE(sandboxir::Utils::atLowerAddress(L0, L1, SE, DL));
-  EXPECT_FALSE(sandboxir::Utils::atLowerAddress(L1, L0, SE, DL));
-  EXPECT_FALSE(sandboxir::Utils::atLowerAddress(L3, V3L3, SE, DL));
+  EXPECT_TRUE(sandboxir::Utils::atLowerAddress(L0, L1, SE));
+  EXPECT_FALSE(sandboxir::Utils::atLowerAddress(L1, L0, SE));
+  EXPECT_FALSE(sandboxir::Utils::atLowerAddress(L3, V3L3, SE));
 }
 
 TEST_F(UtilsTest, GetExpected) {