[ValueTracking] Replace all uses of ComputeSignBit with computeKnownBits.

This patch finishes off the conversion of ComputeSignBit to computeKnownBits.

Differential Revision: https://reviews.llvm.org/D33166

llvm-svn: 303035

1 files changed, 0 insertions, 9 deletions

diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index ad7b8d3e31a..cba7363a0af 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -169,15 +169,6 @@ bool llvm::haveNoCommonBitsSet(const Value *LHS, const Value *RHS,
 }
 
 
-void llvm::ComputeSignBit(const Value *V, bool &KnownZero, bool &KnownOne,
-                          const DataLayout &DL, unsigned Depth,
-                          AssumptionCache *AC, const Instruction *CxtI,
-                          const DominatorTree *DT) {
-  KnownBits Known = computeKnownBits(V, DL, Depth, AC, CxtI, DT);
-  KnownZero = Known.isNonNegative();
-  KnownOne = Known.isNegative();
-}
-
 static bool isKnownToBeAPowerOfTwo(const Value *V, bool OrZero, unsigned Depth,
                                    const Query &Q);