15#ifndef LLVM_CODEGEN_SCOREBOARDHAZARDRECOGNIZER_H
16#define LLVM_CODEGEN_SCOREBOARDHAZARDRECOGNIZER_H
51 Scoreboard() =
default;
57 size_t getDepth()
const {
return Depth; }
62 "Scoreboard was not initialized properly!");
67 void reset(
size_t d = 1) {
78 Head = (Head + 1) & (
Depth-1);
82 Head = (Head - 1) & (
Depth-1);
91 const char *DebugType;
99 unsigned IssueWidth = 0;
102 unsigned IssueCount = 0;
104 Scoreboard ReservedScoreboard;
105 Scoreboard RequiredScoreboard;
110 const char *ParentDebugType =
"");
119 void Reset()
override;
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
Itinerary data supplied by a subtarget to be used by a target.
Scheduling unit. This is a node in the scheduling DAG.
HazardRecognizer - This determines whether or not an instruction can be issued this cycle,...
void Reset() override
Reset - This callback is invoked when a new block of instructions is about to be schedule.
void EmitInstruction(SUnit *SU) override
EmitInstruction - This callback is invoked when an instruction is emitted, to advance the hazard stat...
void RecedeCycle() override
RecedeCycle - This callback is invoked whenever the next bottom-up instruction to be scheduled cannot...
HazardType getHazardType(SUnit *SU, int Stalls) override
getHazardType - Return the hazard type of emitting this node.
bool atIssueLimit() const override
atIssueLimit - Return true if no more instructions may be issued in this cycle.
void AdvanceCycle() override
AdvanceCycle - This callback is invoked whenever the next top-down instruction to be scheduled cannot...
This is an optimization pass for GlobalISel generic memory operations.
void dump(const SparseBitVector< ElementSize > &LHS, raw_ostream &out)