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/*
* Copyright 2011 Christoph Bumiller
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "codegen/nv50_ir.h"
#include "codegen/nv50_ir_build_util.h"
namespace nv50_ir {
class NVC0LegalizeSSA : public Pass
{
private:
virtual bool visit(BasicBlock *);
virtual bool visit(Function *);
// we want to insert calls to the builtin library only after optimization
void handleDIV(Instruction *); // integer division, modulus
void handleRCPRSQ(Instruction *); // double precision float recip/rsqrt
private:
BuildUtil bld;
};
class NVC0LegalizePostRA : public Pass
{
public:
NVC0LegalizePostRA(const Program *);
private:
virtual bool visit(Function *);
virtual bool visit(BasicBlock *);
void replaceZero(Instruction *);
bool tryReplaceContWithBra(BasicBlock *);
void propagateJoin(BasicBlock *);
struct TexUse
{
TexUse(Instruction *use, const Instruction *tex)
: insn(use), tex(tex), level(-1) { }
Instruction *insn;
const Instruction *tex; // or split / mov
int level;
};
struct Limits
{
Limits() { }
Limits(int min, int max) : min(min), max(max) { }
int min, max;
};
bool insertTextureBarriers(Function *);
inline bool insnDominatedBy(const Instruction *, const Instruction *) const;
void findFirstUses(const Instruction *tex, const Instruction *def,
std::list<TexUse>&);
void findOverwritingDefs(const Instruction *tex, Instruction *insn,
const BasicBlock *term,
std::list<TexUse>&);
void addTexUse(std::list<TexUse>&, Instruction *, const Instruction *);
const Instruction *recurseDef(const Instruction *);
private:
LValue *rZero;
LValue *carry;
const bool needTexBar;
};
class NVC0LoweringPass : public Pass
{
public:
NVC0LoweringPass(Program *);
protected:
bool handleRDSV(Instruction *);
bool handleWRSV(Instruction *);
bool handleEXPORT(Instruction *);
bool handleOUT(Instruction *);
bool handleDIV(Instruction *);
bool handleMOD(Instruction *);
bool handleSQRT(Instruction *);
bool handlePOW(Instruction *);
bool handleTEX(TexInstruction *);
bool handleTXD(TexInstruction *);
bool handleTXQ(TexInstruction *);
bool handleManualTXD(TexInstruction *);
bool handleTXLQ(TexInstruction *);
bool handleATOM(Instruction *);
bool handleCasExch(Instruction *, bool needCctl);
void handleSurfaceOpNVE4(TexInstruction *);
void checkPredicate(Instruction *);
private:
virtual bool visit(Function *);
virtual bool visit(BasicBlock *);
virtual bool visit(Instruction *);
void readTessCoord(LValue *dst, int c);
Value *loadResInfo32(Value *ptr, uint32_t off);
Value *loadMsInfo32(Value *ptr, uint32_t off);
Value *loadTexHandle(Value *ptr, unsigned int slot);
void adjustCoordinatesMS(TexInstruction *);
void processSurfaceCoordsNVE4(TexInstruction *);
protected:
BuildUtil bld;
private:
const Target *const targ;
Symbol *gMemBase;
LValue *gpEmitAddress;
};
} // namespace nv50_ir
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