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-rw-r--r--include/llvm/ConstantHandling.h4
-rw-r--r--lib/VMCore/ConstantFold.cpp77
-rw-r--r--lib/VMCore/ConstantFold.h4
-rw-r--r--lib/VMCore/ConstantFolding.h4
4 files changed, 88 insertions, 1 deletions
diff --git a/include/llvm/ConstantHandling.h b/include/llvm/ConstantHandling.h
index d3af1bda46..9e9e760ea1 100644
--- a/include/llvm/ConstantHandling.h
+++ b/include/llvm/ConstantHandling.h
@@ -36,6 +36,7 @@
#include "llvm/ConstPoolVals.h"
#include "llvm/Instruction.h"
#include "llvm/Type.h"
+class PointerType;
namespace opt {
@@ -90,6 +91,8 @@ public:
virtual ConstPoolUInt *castToULong (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToFloat (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const = 0;
+ virtual ConstPoolPointer *castToPointer(const ConstPoolVal *V,
+ const PointerType *Ty) const = 0;
inline ConstPoolVal *castTo(const ConstPoolVal *V, const Type *Ty) const {
switch (Ty->getPrimitiveID()) {
@@ -104,6 +107,7 @@ public:
case Type::LongTyID: return castToLong(V);
case Type::FloatTyID: return castToFloat(V);
case Type::DoubleTyID: return castToDouble(V);
+ case Type::PointerTyID:return castToPointer(V, (PointerType*)Ty);
default: return 0;
}
}
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index 67a598cf23..7438319000 100644
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -89,6 +89,10 @@ class TemplateRules : public ConstRules {
virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const {
return SubClassName::CastToDouble((const ArgType*)V);
}
+ virtual ConstPoolPointer *castToPointer(const ConstPoolVal *V,
+ const PointerType *Ty) const {
+ return SubClassName::CastToPointer((const ArgType*)V, Ty);
+ }
//===--------------------------------------------------------------------===//
// Default "noop" implementations
@@ -121,6 +125,8 @@ class TemplateRules : public ConstRules {
inline static ConstPoolUInt *CastToULong (const ConstPoolVal *V) { return 0; }
inline static ConstPoolFP *CastToFloat (const ConstPoolVal *V) { return 0; }
inline static ConstPoolFP *CastToDouble(const ConstPoolVal *V) { return 0; }
+ inline static ConstPoolPointer *CastToPointer(const ConstPoolVal *,
+ const PointerType *) {return 0;}
};
@@ -161,6 +167,67 @@ struct BoolRules : public TemplateRules<ConstPoolBool, BoolRules> {
//===----------------------------------------------------------------------===//
+// PointerRules Class
+//===----------------------------------------------------------------------===//
+//
+// PointerRules provides a concrete base class of ConstRules for pointer types
+//
+struct PointerRules : public TemplateRules<ConstPoolPointer, PointerRules> {
+ inline static ConstPoolBool *CastToBool (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolBool::False;
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolSInt *CastToSByte (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolSInt::get(Type::SByteTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolUInt *CastToUByte (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolUInt::get(Type::UByteTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolSInt *CastToShort (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolSInt::get(Type::ShortTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolUInt *CastToUShort(const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolUInt::get(Type::UShortTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolSInt *CastToInt (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolSInt::get(Type::IntTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolUInt *CastToUInt (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolUInt::get(Type::UIntTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolSInt *CastToLong (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolSInt::get(Type::LongTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolUInt *CastToULong (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolUInt::get(Type::ULongTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolFP *CastToFloat (const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolFP::get(Type::FloatTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstPoolFP *CastToDouble(const ConstPoolVal *V) {
+ if (V->isNullValue()) return ConstPoolFP::get(Type::DoubleTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+
+ inline static ConstPoolPointer *CastToPointer(const ConstPoolPointer *V,
+ const PointerType *PTy) {
+ if (V->isNullValue())
+ return ConstPoolPointerNull::get(PTy);
+ return 0; // Can't const prop other types of pointers
+ }
+};
+
+
+//===----------------------------------------------------------------------===//
// DirectRules Class
//===----------------------------------------------------------------------===//
//
@@ -204,6 +271,13 @@ struct DirectRules
return ConstPoolBool::get(Result);
}
+ inline static ConstPoolPointer *CastToPointer(const ConstPoolClass *V,
+ const PointerType *PTy) {
+ if (V->isNullValue()) // Is it a FP or Integral null value?
+ return ConstPoolPointerNull::get(PTy);
+ return 0; // Can't const prop other types of pointers
+ }
+
// Casting operators. ick
#define DEF_CAST(TYPE, CLASS, CTYPE) \
inline static CLASS *CastTo##TYPE (const ConstPoolClass *V) { \
@@ -241,7 +315,8 @@ Annotation *ConstRules::find(AnnotationID AID, const Annotable *TyA, void *) {
const Type *Ty = cast<Type>((const Value*)TyA);
switch (Ty->getPrimitiveID()) {
- case Type::BoolTyID: return new BoolRules();
+ case Type::BoolTyID: return new BoolRules();
+ case Type::PointerTyID: return new PointerRules();
case Type::SByteTyID:
return new DirectRules<ConstPoolSInt, signed char , &Type::SByteTy>();
case Type::UByteTyID:
diff --git a/lib/VMCore/ConstantFold.h b/lib/VMCore/ConstantFold.h
index d3af1bda46..9e9e760ea1 100644
--- a/lib/VMCore/ConstantFold.h
+++ b/lib/VMCore/ConstantFold.h
@@ -36,6 +36,7 @@
#include "llvm/ConstPoolVals.h"
#include "llvm/Instruction.h"
#include "llvm/Type.h"
+class PointerType;
namespace opt {
@@ -90,6 +91,8 @@ public:
virtual ConstPoolUInt *castToULong (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToFloat (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const = 0;
+ virtual ConstPoolPointer *castToPointer(const ConstPoolVal *V,
+ const PointerType *Ty) const = 0;
inline ConstPoolVal *castTo(const ConstPoolVal *V, const Type *Ty) const {
switch (Ty->getPrimitiveID()) {
@@ -104,6 +107,7 @@ public:
case Type::LongTyID: return castToLong(V);
case Type::FloatTyID: return castToFloat(V);
case Type::DoubleTyID: return castToDouble(V);
+ case Type::PointerTyID:return castToPointer(V, (PointerType*)Ty);
default: return 0;
}
}
diff --git a/lib/VMCore/ConstantFolding.h b/lib/VMCore/ConstantFolding.h
index d3af1bda46..9e9e760ea1 100644
--- a/lib/VMCore/ConstantFolding.h
+++ b/lib/VMCore/ConstantFolding.h
@@ -36,6 +36,7 @@
#include "llvm/ConstPoolVals.h"
#include "llvm/Instruction.h"
#include "llvm/Type.h"
+class PointerType;
namespace opt {
@@ -90,6 +91,8 @@ public:
virtual ConstPoolUInt *castToULong (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToFloat (const ConstPoolVal *V) const = 0;
virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const = 0;
+ virtual ConstPoolPointer *castToPointer(const ConstPoolVal *V,
+ const PointerType *Ty) const = 0;
inline ConstPoolVal *castTo(const ConstPoolVal *V, const Type *Ty) const {
switch (Ty->getPrimitiveID()) {
@@ -104,6 +107,7 @@ public:
case Type::LongTyID: return castToLong(V);
case Type::FloatTyID: return castToFloat(V);
case Type::DoubleTyID: return castToDouble(V);
+ case Type::PointerTyID:return castToPointer(V, (PointerType*)Ty);
default: return 0;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 14:59:59 +0000