SpillPlacement.cpp File Reference

#include "SpillPlacement.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/CodeGen/EdgeBundles.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"

Include dependency graph for SpillPlacement.cpp:

Go to the source code of this file.

Classes
struct	llvm::SpillPlacement::Node
Defines
#define	DEBUG_TYPE   "spillplacement"
Functions
	INITIALIZE_PASS_BEGIN (SpillPlacement,"spill-code-placement","Spill Code Placement Analysis", true, true) INITIALIZE_PASS_END(SpillPlacement
static BlockFrequency	getThreshold ()
static void	setThreshold (const BlockFrequency &Entry)
	Set the threshold for a given entry frequency.
Variables
spill code	placement
spill code Spill Code Placement	Analysis
spill code Spill Code Placement	true

---

Define Documentation

#define DEBUG_TYPE   "spillplacement"

Definition at line 43 of file SpillPlacement.cpp.

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Function Documentation

static BlockFrequency getThreshold

(

)

[static]

Decision threshold. A node gets the output value 0 if the weighted sum of its inputs falls in the open interval (-Threshold;Threshold).

Definition at line 69 of file SpillPlacement.cpp.

References Threshold.

Referenced by llvm::SpillPlacement::Node::clear(), and llvm::SpillPlacement::Node::update().

INITIALIZE_PASS_BEGIN	(	SpillPlacement	,
		"spill-code-placement"	,
		"Spill Code Placement Analysis"	,
		true	,
		true
	)

static void setThreshold

(

const BlockFrequency &

Entry

)

[static]

Set the threshold for a given entry frequency.

Set the threshold relative to Entry. Since the threshold is used as a bound on the open interval (-Threshold;Threshold), 1 is the minimum threshold.

Definition at line 76 of file SpillPlacement.cpp.

References llvm::BlockFrequency::getFrequency(), and Threshold.

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Variable Documentation

spill code Spill Code Placement Analysis

Definition at line 50 of file SpillPlacement.cpp.

spill code placement

Definition at line 50 of file SpillPlacement.cpp.

spill code Spill Code Placement true

Definition at line 50 of file SpillPlacement.cpp.