AMDGPUCoExecSchedStrategy.cpp File Reference

Coexecution-focused scheduling strategy for AMDGPU. More...

#include "AMDGPUCoExecSchedStrategy.h"
#include "AMDGPUBarrierLatency.h"
#include "AMDGPUIGroupLP.h"
#include "GCNHazardRecognizer.h"
#include "llvm/Support/Debug.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "machine-scheduler"

Functions
static SUnit *	pickOnlyChoice (SchedBoundary &Zone)
static void	allowCoExec (llvm::AMDGPU::CoExecInfo &Info, llvm::AMDGPU::CoExecMaskT ExtraBits, unsigned StartIndex)
	Apply ExtraBits to every slot in Info starting with StartIndex Used by MFMA co-exec rules, because MFMA co-exec slots are incremental, i.e.

Variables
static constexpr unsigned	DefaultCoExecVGPRThresholdPercent = 100

Detailed Description

Coexecution-focused scheduling strategy for AMDGPU.

Definition in file AMDGPUCoExecSchedStrategy.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "machine-scheduler"

Definition at line 23 of file AMDGPUCoExecSchedStrategy.cpp.

Function Documentation

allowCoExec()

void allowCoExec ( llvm::AMDGPU::CoExecInfo & Info, llvm::AMDGPU::CoExecMaskT ExtraBits, unsigned StartIndex )

static

Apply ExtraBits to every slot in Info starting with StartIndex Used by MFMA co-exec rules, because MFMA co-exec slots are incremental, i.e.

for every slot N it supports all instructions which were supported by the previous slot N-1 and may support something extra.

Definition at line 55 of file AMDGPUCoExecSchedStrategy.cpp.

Referenced by llvm::AMDGPU::getMFMACoExecInfo().

pickOnlyChoice()

SUnit * pickOnlyChoice ( SchedBoundary & Zone )

static

Definition at line 42 of file AMDGPUCoExecSchedStrategy.cpp.

References llvm::ReadyQueue::empty(), llvm::SchedBoundary::Pending, and llvm::SchedBoundary::pickOnlyChoice().

Referenced by llvm::AMDGPUCoExecSchedStrategy::pickNode(), llvm::GCNSchedStrategy::pickNode(), and llvm::GCNSchedStrategy::pickNodeBidirectional().

Variable Documentation

DefaultCoExecVGPRThresholdPercent

unsigned DefaultCoExecVGPRThresholdPercent = 100

staticconstexpr

Definition at line 26 of file AMDGPUCoExecSchedStrategy.cpp.

Referenced by llvm::AMDGPUCoExecSchedStrategy::AMDGPUCoExecSchedStrategy().