Add some convenience methods to IRBuilder for constructing aligned loads

and stores. These will be used in subsequnet patches to SROA to more
systematically manage the alignment on loads and stores.

llvm-svn: 164688

1 files changed, 25 insertions, 0 deletions

diff --git a/llvm/include/llvm/IRBuilder.h b/llvm/include/llvm/IRBuilder.h
index ae82c25e3d6..ff64660a429 100644
--- a/llvm/include/llvm/IRBuilder.h
+++ b/llvm/include/llvm/IRBuilder.h
@@ -810,6 +810,31 @@ public:
   StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
     return Insert(new StoreInst(Val, Ptr, isVolatile));
   }
+  // Provided to resolve 'CreateAlignedLoad(Ptr, Align, "...")' correctly,
+  // instead of converting the string to 'bool' for the isVolatile parameter.
+  LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
+    LoadInst *LI = CreateLoad(Ptr, Name);
+    LI->setAlignment(Align);
+    return LI;
+  }
+  LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
+                              const Twine &Name = "") {
+    LoadInst *LI = CreateLoad(Ptr, Name);
+    LI->setAlignment(Align);
+    return LI;
+  }
+  LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
+                              const Twine &Name = "") {
+    LoadInst *LI = CreateLoad(Ptr, isVolatile, Name);
+    LI->setAlignment(Align);
+    return LI;
+  }
+  StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align,
+                                bool isVolatile = false) {
+    StoreInst *SI = CreateStore(Val, Ptr, isVolatile);
+    SI->setAlignment(Align);
+    return SI;
+  }
   FenceInst *CreateFence(AtomicOrdering Ordering,
                          SynchronizationScope SynchScope = CrossThread) {
     return Insert(new FenceInst(Context, Ordering, SynchScope));