[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, 5 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineInternal.h b/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
index 0d58acbf2e3..1424f61fe70 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
+++ b/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
@@ -30,6 +30,7 @@
 #include "llvm/IR/PatternMatch.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Dwarf.h"
+#include "llvm/Support/KnownBits.h"
 #include "llvm/Transforms/InstCombine/InstCombineWorklist.h"
 #include "llvm/Transforms/Utils/Local.h"
 
@@ -505,6 +506,10 @@ public:
                         unsigned Depth, Instruction *CxtI) const {
     llvm::computeKnownBits(V, Known, DL, Depth, &AC, CxtI, &DT);
   }
+  KnownBits computeKnownBits(Value *V, unsigned Depth,
+                             Instruction *CxtI) const {
+    return llvm::computeKnownBits(V, DL, Depth, &AC, CxtI, &DT);
+  }
 
   bool MaskedValueIsZero(Value *V, const APInt &Mask, unsigned Depth = 0,
                          Instruction *CxtI = nullptr) const {
@@ -514,10 +519,6 @@ public:
                               Instruction *CxtI = nullptr) const {
     return llvm::ComputeNumSignBits(Op, DL, Depth, &AC, CxtI, &DT);
   }
-  void ComputeSignBit(Value *V, bool &KnownZero, bool &KnownOne,
-                      unsigned Depth = 0, Instruction *CxtI = nullptr) const {
-    llvm::ComputeSignBit(V, KnownZero, KnownOne, DL, Depth, &AC, CxtI, &DT);
-  }
   OverflowResult computeOverflowForUnsignedMul(Value *LHS, Value *RHS,
                                                const Instruction *CxtI) {
     return llvm::computeOverflowForUnsignedMul(LHS, RHS, DL, &AC, CxtI, &DT);