commit 148083a529c44e8146ffc9863fb45ed7f6ef7e07
author Chris Lattner <sabre@nondot.org> Fri Nov 23 22:35:18 2007 +0000
committer Chris Lattner <sabre@nondot.org> Fri Nov 23 22:35:18 2007 +0000
tree 40e95b12f56e01b38f8a9a0b446e34f07b74b65b
parent ecc0274a54658a4ee76d783b285a0690ad760928

add a comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44293 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/InstructionCombining.cpp

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index c8df412..5537631 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -2660,7 +2660,7 @@
     if (ConstantInt *RHS = dyn_cast<ConstantInt>(I->getOperand(1))) {
       // X & 0xFFF0 is known to be a multiple of 16.
       uint32_t Zeros = RHS->getValue().countTrailingZeros();
-      if (Zeros != V->getType()->getPrimitiveSizeInBits())
+      if (Zeros != V->getType()->getPrimitiveSizeInBits())// don't shift by "32"
         return ConstantExpr::getShl(Result, 
                                     ConstantInt::get(Result->getType(), Zeros));
     }