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Add basic infrastructure and x86 support for preserving MachineMemOperand

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information when unfolding memory references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-10-09 18:10:05 +00:00
parent c525472828
commit 91e69c3715
4 changed files with 114 additions and 4 deletions
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16
include/llvm/CodeGen/MachineFunction.h
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@@ -329,7 +329,7 @@ public:
unsigned base_alignment);
/// getMachineMemOperand - Allocate a new MachineMemOperand by copying
/// an existing one, adjusting by an offset and using the given EVT.
/// an existing one, adjusting by an offset and using the given size.
/// MachineMemOperands are owned by the MachineFunction and need not be
/// explicitly deallocated.
MachineMemOperand *getMachineMemOperand(const MachineMemOperand *MMO,
@@ -339,6 +339,20 @@ public:
/// pointers. This array is owned by the MachineFunction.
MachineInstr::mmo_iterator allocateMemRefsArray(unsigned long Num);
/// extractLoadMemRefs - Allocate an array and populate it with just the
/// load information from the given MachineMemOperand sequence.
std::pair<MachineInstr::mmo_iterator,
MachineInstr::mmo_iterator>
extractLoadMemRefs(MachineInstr::mmo_iterator Begin,
MachineInstr::mmo_iterator End);
/// extractStoreMemRefs - Allocate an array and populate it with just the
/// store information from the given MachineMemOperand sequence.
std::pair<MachineInstr::mmo_iterator,
MachineInstr::mmo_iterator>
extractStoreMemRefs(MachineInstr::mmo_iterator Begin,
MachineInstr::mmo_iterator End);
//===--------------------------------------------------------------------===//
// Debug location.
//