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author | Chris Lattner <sabre@nondot.org> | 2010-09-21 04:23:39 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2010-09-21 04:23:39 +0000 |
commit | e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5 (patch) | |
tree | e8d11d49ad7ea426ec7940f1c3e38f69a8408ba9 /include/llvm | |
parent | 22481f2ea18ce80c96dd5b554376b31727213f51 (diff) | |
download | llvm-e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5.tar.gz llvm-e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5.tar.bz2 llvm-e8e2e80f40495fdd5ad475beb54fcf0989b6b7c5.tar.xz |
refactor the Value*/offset pair from MachineMemOperand out to a new
MachinePointerInfo struct, no functionality change.
This also adds an assert to MachineMemOperand::MachineMemOperand
that verifies that the Value* is either null or is an IR pointer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114389 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm')
-rw-r--r-- | include/llvm/CodeGen/MachineMemOperand.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/include/llvm/CodeGen/MachineMemOperand.h b/include/llvm/CodeGen/MachineMemOperand.h index 7272aa5fc1..b9b35e6152 100644 --- a/include/llvm/CodeGen/MachineMemOperand.h +++ b/include/llvm/CodeGen/MachineMemOperand.h @@ -24,6 +24,17 @@ class Value; class FoldingSetNodeID; class raw_ostream; +/// MachinePointerInfo - This class contains a discriminated union of +/// information about pointers in memory operands, relating them back to LLVM IR +/// or to virtual locations (such as frame indices) that are exposed during +/// codegen. +struct MachinePointerInfo { + const Value *V; + int64_t Offset; + MachinePointerInfo(const Value *v, int64_t offset) : V(v), Offset(offset) {} +}; + + //===----------------------------------------------------------------------===// /// MachineMemOperand - A description of a memory reference used in the backend. /// Instead of holding a StoreInst or LoadInst, this class holds the address @@ -33,10 +44,9 @@ class raw_ostream; /// that aren't explicit in the regular LLVM IR. /// class MachineMemOperand { - int64_t Offset; + MachinePointerInfo PtrInfo; uint64_t Size; - const Value *V; - unsigned int Flags; + unsigned Flags; public: /// Flags values. These may be or'd together. @@ -65,7 +75,7 @@ public: /// other PseudoSourceValue member functions which return objects which stand /// for frame/stack pointer relative references and other special references /// which are not representable in the high-level IR. - const Value *getValue() const { return V; } + const Value *getValue() const { return PtrInfo.V; } /// getFlags - Return the raw flags of the source value, \see MemOperandFlags. unsigned int getFlags() const { return Flags & ((1 << MOMaxBits) - 1); } @@ -73,7 +83,7 @@ public: /// getOffset - For normal values, this is a byte offset added to the base /// address. For PseudoSourceValue::FPRel values, this is the FrameIndex /// number. - int64_t getOffset() const { return Offset; } + int64_t getOffset() const { return PtrInfo.Offset; } /// getSize - Return the size in bytes of the memory reference. uint64_t getSize() const { return Size; } @@ -99,7 +109,8 @@ public: /// setValue - Change the SourceValue for this MachineMemOperand. This /// should only be used when an object is being relocated and all references /// to it are being updated. - void setValue(const Value *NewSV) { V = NewSV; } + void setValue(const Value *NewSV) { PtrInfo.V = NewSV; } + void setOffset(int64_t NewOffset) { PtrInfo.Offset = NewOffset; } /// Profile - Gather unique data for the object. /// |