[SandboxIR] Added isVolatile args to existing LoadInst::create function (#100850)

Added isVolatile args along with the tests.

Author: wizardengineer

llvm/include/llvm/SandboxIR/SandboxIR.h

@@ -65,8 +65,8 @@
 #define LLVM_SANDBOXIR_SANDBOXIR_H
 
 #include "llvm/IR/Function.h"
-#include "llvm/IR/Instruction.h"
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Instruction.h"
 #include "llvm/IR/User.h"
 #include "llvm/IR/Value.h"
 #include "llvm/SandboxIR/Tracker.h"
@@ -772,10 +772,10 @@ class LoadInst final : public Instruction {
   unsigned getNumOfIRInstrs() const final { return 1u; }
   static LoadInst *create(Type *Ty, Value *Ptr, MaybeAlign Align,
                           Instruction *InsertBefore, Context &Ctx,
-                          const Twine &Name = "");
+                          bool IsVolatile = false, const Twine &Name = "");
   static LoadInst *create(Type *Ty, Value *Ptr, MaybeAlign Align,
                           BasicBlock *InsertAtEnd, Context &Ctx,
-                          const Twine &Name = "");
+                          bool IsVolatile = false, const Twine &Name = "");
   /// For isa/dyn_cast.
   static bool classof(const Value *From);
   Value *getPointerOperand() const;

llvm/lib/SandboxIR/SandboxIR.cpp

@@ -612,23 +612,23 @@ void BranchInst::dump() const {
 
 LoadInst *LoadInst::create(Type *Ty, Value *Ptr, MaybeAlign Align,
                            Instruction *InsertBefore, Context &Ctx,
-                           const Twine &Name) {
+                           bool IsVolatile, const Twine &Name) {
   llvm::Instruction *BeforeIR = InsertBefore->getTopmostLLVMInstruction();
   auto &Builder = Ctx.getLLVMIRBuilder();
   Builder.SetInsertPoint(BeforeIR);
-  auto *NewLI = Builder.CreateAlignedLoad(Ty, Ptr->Val, Align,
-                                          /*isVolatile=*/false, Name);
+  auto *NewLI =
+      Builder.CreateAlignedLoad(Ty, Ptr->Val, Align, IsVolatile, Name);
   auto *NewSBI = Ctx.createLoadInst(NewLI);
   return NewSBI;
 }
 
 LoadInst *LoadInst::create(Type *Ty, Value *Ptr, MaybeAlign Align,
                            BasicBlock *InsertAtEnd, Context &Ctx,
-                           const Twine &Name) {
+                           bool IsVolatile, const Twine &Name) {
   auto &Builder = Ctx.getLLVMIRBuilder();
   Builder.SetInsertPoint(cast<llvm::BasicBlock>(InsertAtEnd->Val));
-  auto *NewLI = Builder.CreateAlignedLoad(Ty, Ptr->Val, Align,
-                                          /*isVolatile=*/false, Name);
+  auto *NewLI =
+      Builder.CreateAlignedLoad(Ty, Ptr->Val, Align, IsVolatile, Name);
   auto *NewSBI = Ctx.createLoadInst(NewLI);
   return NewSBI;
 }

llvm/unittests/SandboxIR/SandboxIRTest.cpp

@@ -764,11 +764,23 @@ define void @foo(ptr %arg0, ptr %arg1) {
   // Check create(InsertBefore)
   sandboxir::LoadInst *NewLd =
       sandboxir::LoadInst::create(Ld->getType(), Arg1, Align(8),
-                                  /*InsertBefore=*/Ret, Ctx, "NewLd");
+                                  /*InsertBefore=*/Ret, Ctx,
+                                  /*IsVolatile=*/false, "NewLd");
+  // Checking if create() was volatile
+  EXPECT_FALSE(NewLd->isVolatile());
   EXPECT_EQ(NewLd->getType(), Ld->getType());
   EXPECT_EQ(NewLd->getPointerOperand(), Arg1);
   EXPECT_EQ(NewLd->getAlign(), 8);
   EXPECT_EQ(NewLd->getName(), "NewLd");
+
+  sandboxir::LoadInst *NewVLd =
+      sandboxir::LoadInst::create(Vld->getType(), Arg1, Align(8),
+                                  /*InsertBefore=*/Ret, Ctx,
+                                  /*IsVolatile=*/true, "NewVLd");
+
+  // Checking if create() was volatile
+  EXPECT_TRUE(NewVLd->isVolatile());
+  EXPECT_EQ(NewVLd->getName(), "NewVLd");
 }
 
 TEST_F(SandboxIRTest, StoreInst) {