X86LegalizerInfo.cpp File Reference

This file implements the targeting of the Machinelegalizer class for X86. More...

#include "X86LegalizerInfo.h"
#include "X86Subtarget.h"
#include "X86TargetMachine.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Type.h"

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Functions
static void	addAndInterleaveWithUnsupported (LegacyLegalizerInfo::SizeAndActionsVec &result, const LegacyLegalizerInfo::SizeAndActionsVec &v)
	FIXME: The following static functions are SizeChangeStrategy functions that are meant to temporarily mimic the behaviour of the old legalization based on doubling/halving non-legal types as closely as possible.
static LegacyLegalizerInfo::SizeAndActionsVec	widen_1 (const LegacyLegalizerInfo::SizeAndActionsVec &v)

Detailed Description

This file implements the targeting of the Machinelegalizer class for X86.

Todo:

This should be generated by TableGen.

Definition in file X86LegalizerInfo.cpp.

Function Documentation

addAndInterleaveWithUnsupported()

static void addAndInterleaveWithUnsupported ( LegacyLegalizerInfo::SizeAndActionsVec &  result, const LegacyLegalizerInfo::SizeAndActionsVec &  v  )

static

FIXME: The following static functions are SizeChangeStrategy functions that are meant to temporarily mimic the behaviour of the old legalization based on doubling/halving non-legal types as closely as possible.

This is not entirly possible as only legalizing the types that are exactly a power of 2 times the size of the legal types would require specifying all those sizes explicitly. In practice, not specifying those isn't a problem, and the below functions should disappear quickly as we add support for legalizing non-power-of-2 sized types further.

Definition at line 35 of file X86LegalizerInfo.cpp.

References llvm::LegacyLegalizeActions::Unsupported.

Referenced by widen_1().

widen_1()

static LegacyLegalizerInfo::SizeAndActionsVec widen_1 ( const LegacyLegalizerInfo::SizeAndActionsVec &  v )

static

Definition at line 47 of file X86LegalizerInfo.cpp.

References addAndInterleaveWithUnsupported(), assert(), llvm::LegacyLegalizeActions::Unsupported, and llvm::LegacyLegalizeActions::WidenScalar.

Referenced by llvm::X86LegalizerInfo::X86LegalizerInfo().