DCE: isArrayMalloc() is not used neither in LLVM nor Clang

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231624 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Analysis/MemoryBuiltins.h b/include/llvm/Analysis/MemoryBuiltins.h
index d414680b519d4d84b1cde72113c0df3b087a6655..c1a7ee24f1aed5f9719ceddaaba6e6b5a477c86d 100644 (file)
--- a/include/llvm/Analysis/MemoryBuiltins.h
+++ b/include/llvm/Analysis/MemoryBuiltins.h
@@ -82,12 +82,6 @@ static inline CallInst *extractMallocCall(Value *I,
   return const_cast<CallInst*>(extractMallocCall((const Value*)I, TLI));
 }
 
-/// isArrayMalloc - Returns the corresponding CallInst if the instruction
-/// is a call to malloc whose array size can be determined and the array size
-/// is not constant 1.  Otherwise, return NULL.
-const CallInst *isArrayMalloc(const Value *I, const DataLayout *DL,
-                              const TargetLibraryInfo *TLI);
-
 /// getMallocType - Returns the PointerType resulting from the malloc call.
 /// The PointerType depends on the number of bitcast uses of the malloc call:
 ///   0: PointerType is the malloc calls' return type.

diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index 6108af3afb9e3877a1384169fb9be3346d80600b..a0c8908edaf8b89e3c2a4e664797d59bf4857b33 100644 (file)
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -232,23 +232,6 @@ static Value *computeArraySize(const CallInst *CI, const DataLayout *DL,
   return nullptr;
 }
 
-/// isArrayMalloc - Returns the corresponding CallInst if the instruction
-/// is a call to malloc whose array size can be determined and the array size
-/// is not constant 1.  Otherwise, return NULL.
-const CallInst *llvm::isArrayMalloc(const Value *I,
-                                    const DataLayout *DL,
-                                    const TargetLibraryInfo *TLI) {
-  const CallInst *CI = extractMallocCall(I, TLI);
-  Value *ArraySize = computeArraySize(CI, DL, TLI);
-
-  if (ConstantInt *ConstSize = dyn_cast_or_null<ConstantInt>(ArraySize))
-    if (ConstSize->isOne())
-      return CI;
-
-  // CI is a non-array malloc or we can't figure out that it is an array malloc.
-  return nullptr;
-}
-
 /// getMallocType - Returns the PointerType resulting from the malloc call.
 /// The PointerType depends on the number of bitcast uses of the malloc call:
 ///   0: PointerType is the calls' return type.