From 7bbff04f7f1d0c16a464eb074a3e5e8f729b97e3 Mon Sep 17 00:00:00 2001 From: Andrew Lenharth Date: Wed, 2 Nov 2005 18:35:40 +0000 Subject: [PATCH] make this 64 bit clean, fixed test30 of /Regression/Transforms/InstCombine/add.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24158 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/InstructionCombining.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index adafccddf00..1db2df25068 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -710,7 +710,7 @@ Instruction *InstCombiner::visitAdd(BinaryOperator &I) { // X + (signbit) --> X ^ signbit if (ConstantInt *CI = dyn_cast(RHSC)) { unsigned NumBits = CI->getType()->getPrimitiveSizeInBits(); - uint64_t Val = CI->getRawValue() & (1ULL << NumBits)-1; + uint64_t Val = CI->getRawValue() & (~0ULL >> (64- NumBits)); if (Val == (1ULL << (NumBits-1))) return BinaryOperator::createXor(LHS, RHS); }