Discriminator.h File Reference

#include "llvm/Support/Error.h"
#include <assert.h>

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::sampleprof

Enumerations
enum	llvm::sampleprof::FSDiscriminatorPass {   llvm::sampleprof::Base = 0 , llvm::sampleprof::Pass0 = 0 , llvm::sampleprof::Pass1 = 1 , llvm::sampleprof::Pass2 = 2 ,   llvm::sampleprof::Pass3 = 3 , llvm::sampleprof::Pass4 = 4 , llvm::sampleprof::PassLast = 4 }

Functions
static unsigned	getPrefixEncodingFromUnsigned (unsigned U)
	With a given unsigned int U, use up to 13 bits to represent it.
static unsigned	getUnsignedFromPrefixEncoding (unsigned U)
	Reverse transformation as getPrefixEncodingFromUnsigned.
static unsigned	getNextComponentInDiscriminator (unsigned D)
	Returns the next component stored in discriminator.
static unsigned	encodeComponent (unsigned C)
static unsigned	encodingBits (unsigned C)
static unsigned	llvm::getNumFSPasses ()
static unsigned	llvm::getFSPassBitEnd (sampleprof::FSDiscriminatorPass P)
static unsigned	llvm::getFSPassBitBegin (sampleprof::FSDiscriminatorPass P)
static int	llvm::getLastFSPassBitBegin ()
static unsigned	llvm::getLastFSPassBitEnd ()
static unsigned	llvm::getBaseFSBitBegin ()
static unsigned	llvm::getBaseFSBitEnd ()
static unsigned	llvm::getN1Bits (int N)

Variables
static const unsigned	llvm::BaseDiscriminatorBitWidth = 8
static const unsigned	llvm::FSDiscriminatorBitWidth = 6

Function Documentation

encodeComponent()

static unsigned encodeComponent ( unsigned  C )

inlinestatic

Definition at line 45 of file Discriminator.h.

References C, and getPrefixEncodingFromUnsigned().

Referenced by llvm::DILocation::encodeDiscriminator().

encodingBits()

static unsigned encodingBits ( unsigned  C )

inlinestatic

Definition at line 49 of file Discriminator.h.

References C.

Referenced by llvm::DILocation::encodeDiscriminator().

getNextComponentInDiscriminator()

static unsigned getNextComponentInDiscriminator ( unsigned  D )

inlinestatic

Returns the next component stored in discriminator.

Definition at line 38 of file Discriminator.h.

References D.

Referenced by llvm::DILocation::decodeDiscriminator(), llvm::DILocation::getCopyIdentifierFromDiscriminator(), and llvm::DILocation::getDuplicationFactorFromDiscriminator().

getPrefixEncodingFromUnsigned()

static unsigned getPrefixEncodingFromUnsigned ( unsigned  U )

inlinestatic

With a given unsigned int U, use up to 13 bits to represent it.

old_bit 1~5 --> new_bit 1~5 old_bit 6~12 --> new_bit 7~13 new_bit_6 is 0 if higher bits (7~13) are all 0

Definition at line 24 of file Discriminator.h.

Referenced by encodeComponent().

getUnsignedFromPrefixEncoding()

static unsigned getUnsignedFromPrefixEncoding ( unsigned  U )

inlinestatic

Reverse transformation as getPrefixEncodingFromUnsigned.

Definition at line 30 of file Discriminator.h.

Referenced by llvm::DILocation::decodeDiscriminator(), llvm::DILocation::getBaseDiscriminatorFromDiscriminator(), llvm::DILocation::getCopyIdentifierFromDiscriminator(), and llvm::DILocation::getDuplicationFactorFromDiscriminator().