[llvm-commits] [llvm] r90694 - /llvm/trunk/include/llvm/Support/IRBuilder.h

[Chris Lattner]

Author: lattner
Date: Sat Dec  5 19:56:22 2009
New Revision: 90694

URL: http://llvm.org/viewvc/llvm-project?rev=90694&view=rev
Log:
Add helper methods for forming shift operations with a constant 
shift amount.

Modified:
    llvm/trunk/include/llvm/Support/IRBuilder.h

Modified: llvm/trunk/include/llvm/Support/IRBuilder.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/IRBuilder.h?rev=90694&r1=90693&r2=90694&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Support/IRBuilder.h (original)
+++ llvm/trunk/include/llvm/Support/IRBuilder.h Sat Dec  5 19:56:22 2009
@@ -407,18 +407,39 @@
         return Folder.CreateShl(LC, RC);
     return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
   }
+  Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
+    if (Constant *LC = dyn_cast<Constant>(LHS))
+      return Folder.CreateShl(LC, RHSC);
+    return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
+  }
+
   Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "") {
     if (Constant *LC = dyn_cast<Constant>(LHS))
       if (Constant *RC = dyn_cast<Constant>(RHS))
         return Folder.CreateLShr(LC, RC);
     return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
   }
+  Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
+    if (Constant *LC = dyn_cast<Constant>(LHS))
+      return Folder.CreateLShr(LC, RHSC);
+    return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
+  }
+  
   Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "") {
     if (Constant *LC = dyn_cast<Constant>(LHS))
       if (Constant *RC = dyn_cast<Constant>(RHS))
         return Folder.CreateAShr(LC, RC);
     return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
   }
+  Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
+    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
+    if (Constant *LC = dyn_cast<Constant>(LHS))
+      return Folder.CreateSShr(LC, RHSC);
+    return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
+  }
+
   Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
     if (Constant *RC = dyn_cast<Constant>(RHS)) {
       if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())