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Move to operand constraints for two-address instructions. 

llvm-svn: 31452
This commit is contained in:
Evan Cheng 2006-11-04 09:42:53 +00:00
parent 3cb5bf721c
commit 1bc4e8a26a
1 changed files with 12 additions and 1 deletions
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13
llvm/include/llvm/CodeGen/ScheduleDAG.h
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@ -154,7 +154,8 @@ namespace llvm {
public:
virtual ~SchedulingPriorityQueue() {}
virtual void initNodes(std::vector<SUnit> &SUnits) = 0;
virtual void initNodes(std::map<SDNode*, SUnit*> &SUMap,
std::vector<SUnit> &SUnits) = 0;
virtual void releaseState() = 0;
virtual bool empty() const = 0;
@ -225,6 +226,16 @@ namespace llvm {
void CalculateDepths();
void CalculateHeights();
/// CountResults - The results of target nodes have register or immediate
/// operands first, then an optional chain, and optional flag operands
/// (which do not go into the machine instrs.)
static unsigned CountResults(SDNode *Node);
/// CountOperands The inputs to target nodes have any actual inputs first,
/// followed by an optional chain operand, then flag operands. Compute the
/// number of actual operands that will go into the machine instr.
static unsigned CountOperands(SDNode *Node);
/// EmitNode - Generate machine code for an node and needed dependencies.
/// VRBaseMap contains, for each already emitted node, the first virtual
/// register number for the results of the node.