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-rw-r--r--include/llvm/Analysis/MemoryBuiltins.h58
1 files changed, 36 insertions, 22 deletions
diff --git a/include/llvm/Analysis/MemoryBuiltins.h b/include/llvm/Analysis/MemoryBuiltins.h
index e16f3894f7..c3ae603b70 100644
--- a/include/llvm/Analysis/MemoryBuiltins.h
+++ b/include/llvm/Analysis/MemoryBuiltins.h
@@ -28,6 +28,7 @@ namespace llvm {
class CallInst;
class PointerType;
class TargetData;
+class TargetLibraryInfo;
class Type;
class Value;
@@ -35,27 +36,33 @@ class Value;
/// \brief Tests if a value is a call or invoke to a library function that
/// allocates or reallocates memory (either malloc, calloc, realloc, or strdup
/// like).
-bool isAllocationFn(const Value *V, bool LookThroughBitCast = false);
+bool isAllocationFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
/// \brief Tests if a value is a call or invoke to a function that returns a
/// NoAlias pointer (including malloc/calloc/realloc/strdup-like functions).
-bool isNoAliasFn(const Value *V, bool LookThroughBitCast = false);
+bool isNoAliasFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
/// \brief Tests if a value is a call or invoke to a library function that
/// allocates uninitialized memory (such as malloc).
-bool isMallocLikeFn(const Value *V, bool LookThroughBitCast = false);
+bool isMallocLikeFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
/// \brief Tests if a value is a call or invoke to a library function that
/// allocates zero-filled memory (such as calloc).
-bool isCallocLikeFn(const Value *V, bool LookThroughBitCast = false);
+bool isCallocLikeFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
/// \brief Tests if a value is a call or invoke to a library function that
/// allocates memory (either malloc, calloc, or strdup like).
-bool isAllocLikeFn(const Value *V, bool LookThroughBitCast = false);
+bool isAllocLikeFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
/// \brief Tests if a value is a call or invoke to a library function that
/// reallocates memory (such as realloc).
-bool isReallocLikeFn(const Value *V, bool LookThroughBitCast = false);
+bool isReallocLikeFn(const Value *V, const TargetLibraryInfo *TLI,
+ bool LookThroughBitCast = false);
//===----------------------------------------------------------------------===//
@@ -65,29 +72,31 @@ bool isReallocLikeFn(const Value *V, bool LookThroughBitCast = false);
/// extractMallocCall - Returns the corresponding CallInst if the instruction
/// is a malloc call. Since CallInst::CreateMalloc() only creates calls, we
/// ignore InvokeInst here.
-const CallInst *extractMallocCall(const Value *I);
-static inline CallInst *extractMallocCall(Value *I) {
- return const_cast<CallInst*>(extractMallocCall((const Value*)I));
+const CallInst *extractMallocCall(const Value *I, const TargetLibraryInfo *TLI);
+static inline CallInst *extractMallocCall(Value *I,
+ const TargetLibraryInfo *TLI) {
+ 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 TargetData *TD);
+const CallInst *isArrayMalloc(const Value *I, const TargetData *TD,
+ 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.
/// 1: PointerType is the bitcast's result type.
/// >1: Unique PointerType cannot be determined, return NULL.
-PointerType *getMallocType(const CallInst *CI);
+PointerType *getMallocType(const CallInst *CI, const TargetLibraryInfo *TLI);
/// getMallocAllocatedType - Returns the Type allocated by malloc call.
/// The Type depends on the number of bitcast uses of the malloc call:
/// 0: PointerType is the malloc calls' return type.
/// 1: PointerType is the bitcast's result type.
/// >1: Unique PointerType cannot be determined, return NULL.
-Type *getMallocAllocatedType(const CallInst *CI);
+Type *getMallocAllocatedType(const CallInst *CI, const TargetLibraryInfo *TLI);
/// getMallocArraySize - Returns the array size of a malloc call. If the
/// argument passed to malloc is a multiple of the size of the malloced type,
@@ -95,6 +104,7 @@ Type *getMallocAllocatedType(const CallInst *CI);
/// constant 1. Otherwise, return NULL for mallocs whose array size cannot be
/// determined.
Value *getMallocArraySize(CallInst *CI, const TargetData *TD,
+ const TargetLibraryInfo *TLI,
bool LookThroughSExt = false);
@@ -104,9 +114,10 @@ Value *getMallocArraySize(CallInst *CI, const TargetData *TD,
/// extractCallocCall - Returns the corresponding CallInst if the instruction
/// is a calloc call.
-const CallInst *extractCallocCall(const Value *I);
-static inline CallInst *extractCallocCall(Value *I) {
- return const_cast<CallInst*>(extractCallocCall((const Value*)I));
+const CallInst *extractCallocCall(const Value *I, const TargetLibraryInfo *TLI);
+static inline CallInst *extractCallocCall(Value *I,
+ const TargetLibraryInfo *TLI) {
+ return const_cast<CallInst*>(extractCallocCall((const Value*)I, TLI));
}
@@ -115,10 +126,10 @@ static inline CallInst *extractCallocCall(Value *I) {
//
/// isFreeCall - Returns non-null if the value is a call to the builtin free()
-const CallInst *isFreeCall(const Value *I);
+const CallInst *isFreeCall(const Value *I, const TargetLibraryInfo *TLI);
-static inline CallInst *isFreeCall(Value *I) {
- return const_cast<CallInst*>(isFreeCall((const Value*)I));
+static inline CallInst *isFreeCall(Value *I, const TargetLibraryInfo *TLI) {
+ return const_cast<CallInst*>(isFreeCall((const Value*)I, TLI));
}
@@ -131,7 +142,7 @@ static inline CallInst *isFreeCall(Value *I) {
/// If RoundToAlign is true, then Size is rounded up to the aligment of allocas,
/// byval arguments, and global variables.
bool getObjectSize(const Value *Ptr, uint64_t &Size, const TargetData *TD,
- bool RoundToAlign = false);
+ const TargetLibraryInfo *TLI, bool RoundToAlign = false);
@@ -143,6 +154,7 @@ class ObjectSizeOffsetVisitor
: public InstVisitor<ObjectSizeOffsetVisitor, SizeOffsetType> {
const TargetData *TD;
+ const TargetLibraryInfo *TLI;
bool RoundToAlign;
unsigned IntTyBits;
APInt Zero;
@@ -155,8 +167,8 @@ class ObjectSizeOffsetVisitor
}
public:
- ObjectSizeOffsetVisitor(const TargetData *TD, LLVMContext &Context,
- bool RoundToAlign = false);
+ ObjectSizeOffsetVisitor(const TargetData *TD, const TargetLibraryInfo *TLI,
+ LLVMContext &Context, bool RoundToAlign = false);
SizeOffsetType compute(Value *V);
@@ -202,6 +214,7 @@ class ObjectSizeOffsetEvaluator
typedef SmallPtrSet<const Value*, 8> PtrSetTy;
const TargetData *TD;
+ const TargetLibraryInfo *TLI;
LLVMContext &Context;
BuilderTy Builder;
IntegerType *IntTy;
@@ -215,7 +228,8 @@ class ObjectSizeOffsetEvaluator
SizeOffsetEvalType compute_(Value *V);
public:
- ObjectSizeOffsetEvaluator(const TargetData *TD, LLVMContext &Context);
+ ObjectSizeOffsetEvaluator(const TargetData *TD, const TargetLibraryInfo *TLI,
+ LLVMContext &Context);
SizeOffsetEvalType compute(Value *V);
bool knownSize(SizeOffsetEvalType SizeOffset) {