[llvm-commits] [llvm] r51216 - in /llvm/trunk: lib/VMCore/ConstantFold.cpp test/Transforms/InstCombine/2008-05-17-FoldIntToPtr.ll

[Gordon Henriksen]

On 2008-05-17, at 05:03, Nick Lewycky wrote:

> +    case Instruction::PtrToInt:
> +    case Instruction::IntToPtr:
> +      // inttoptr(x1) != inttoptr(x2) iff x1 != x2

Nick, one way to write an 'is 64-bit' ConstantExpr would be to as  
(icmp ne (inttoptr i64 0x100000000), (inttoptr i64 0x0)). Likewise,  
ptrtoint can also perform a target-dependent truncation. Are you  
correct re these behaviors?

— Gordon