Starting compiler work. Adding pass TODOs.

This commit is contained in:
Ben Vanik 2013-12-07 01:36:13 -08:00
parent fdb6a5cfa3
commit c2113c116d
16 changed files with 509 additions and 138 deletions

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@ -40,7 +40,7 @@ void* Arena::Alloc(size_t size) {
if (active_chunk_->capacity - active_chunk_->offset < size) {
Chunk* next = active_chunk_->next;
if (!next) {
XEASSERT(size < size); // need to support larger chunks
XEASSERT(size < chunk_size_); // need to support larger chunks
next = new Chunk(chunk_size_);
active_chunk_->next = next;
}

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@ -46,7 +46,9 @@ int Compiler::Compile(FunctionBuilder* builder) {
// stop changing things, etc.
for (PassList::iterator it = passes_.begin(); it != passes_.end(); ++it) {
Pass* pass = *it;
//
if (pass->Run(builder)) {
return 1;
}
}
return 0;

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@ -12,6 +12,8 @@
#include <alloy/core.h>
#include <alloy/hir/function_builder.h>
namespace alloy {
namespace compiler {
@ -21,6 +23,8 @@ class Pass {
public:
Pass();
virtual ~Pass();
virtual int Run(hir::FunctionBuilder* builder) = 0;
};

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@ -10,6 +10,196 @@
#ifndef ALLOY_COMPILER_PASSES_H_
#define ALLOY_COMPILER_PASSES_H_
#include <alloy/compiler/passes/mem2reg_pass.h>
//#include <alloy/compiler/passes/constant_propagation_pass.h>
//#include <alloy/compiler/passes/context_promotion_pass.h>
//#include <alloy/compiler/passes/dead_code_elimination_pass.h>
//#include <alloy/compiler/passes/dead_store_elimination_pass.h>
#include <alloy/compiler/passes/simplification_pass.h>
// TODO:
// - mark_use/mark_set
// For now: mark_all_changed on all calls
// For external functions:
// - load_context/mark_use on all arguments
// - mark_set on return argument?
// For internal functions:
// - if liveness analysis already done, use that
// - otherwise, assume everything dirty (ACK!)
// - could use scanner to insert mark_use
//
// Maybe:
// - v0.xx = load_constant <c>
// - v0.xx = load_zero
// Would prevent NULL defs on values, and make constant de-duping possible.
// Not sure if it's worth it, though, as the extra register allocation
// pressure due to de-duped constants seems like it would slow things down
// a lot.
//
// - CFG:
// Blocks need predecessors()/successor()
// phi Instr reference
//
// - block liveness tracking (in/out)
// Block gets:
// AddIncomingValue(Value* value, Block* src_block) ??
// Potentially interesting passes:
//
// Run order:
// ContextPromotion
// ConstantPropagation
// TypePropagation
// ByteSwapElimination
// Simplification
// DeadStoreElimination
// DeadCodeElimination
//
// - ContextPromotion
// Like mem2reg, but because context memory is unaliasable it's easier to
// check and convert LoadContext/StoreContext into value operations.
// Example of load->value promotion:
// v0 = load_context +100
// store_context +200, v0
// v1 = load_context +100 <-- replace with v1 = v0
// store_context +200, v1
//
// It'd be possible in this stage to also remove redundant context stores:
// Example of dead store elimination:
// store_context +100, v0 <-- removed due to following store
// store_context +100, v1
// This is more generally done by DSE, however if it could be done here
// instead as it may be faster (at least on the block-level).
//
// - ConstantPropagation
// One ContextPromotion has run there will likely be a whole slew of
// constants that can be pushed through the function.
// Example:
// store_context +100, 1000
// v0 = load_context +100
// v1 = add v0, v0
// store_context +200, v1
// after PromoteContext:
// store_context +100, 1000
// v0 = 1000
// v1 = add v0, v0
// store_context +200, v1
// after PropagateConstants:
// store_context +100, 1000
// v0 = 1000
// v1 = add 1000, 1000
// store_context +200, 2000
// A DCE run after this should clean up any of the values no longer needed.
//
// - TypePropagation
// There are many extensions/truncations in generated code right now due to
// various load/stores of varying widths. Being able to find and short-
// circuit the conversions early on would make following passes cleaner
// and faster as they'd have to trace through fewer value definitions.
// Example (after ContextPromotion):
// v81.i64 = load_context +88
// v82.i32 = truncate v81.i64
// v84.i32 = and v82.i32, 3F
// v85.i64 = zero_extend v84.i32
// v87.i64 = load_context +248
// v88.i64 = v85.i64
// v89.i32 = truncate v88.i64 <-- zero_extend/truncate => v84.i32
// v90.i32 = byte_swap v89.i32
// store v87.i64, v90.i32
// after type propagation / simplification / DCE:
// v81.i64 = load_context +88
// v82.i32 = truncate v81.i64
// v84.i32 = and v82.i32, 3F
// v87.i64 = load_context +248
// v90.i32 = byte_swap v84.i32
// store v87.i64, v90.i32
//
// - ByteSwapElimination
// Find chained byte swaps and replace with assignments. This is often found
// in memcpy paths.
// Example:
// v0 = load ...
// v1 = byte_swap v0
// v2 = byte_swap v1
// store ..., v2 <-- this could be v0
//
// It may be tricky to detect, though, as often times there are intervening
// instructions:
// v21.i32 = load v20.i64
// v22.i32 = byte_swap v21.i32
// v23.i64 = zero_extend v22.i32
// v88.i64 = v23.i64 (from ContextPromotion)
// v89.i32 = truncate v88.i64
// v90.i32 = byte_swap v89.i32
// store v87.i64, v90.i32
// After type propagation:
// v21.i32 = load v20.i64
// v22.i32 = byte_swap v21.i32
// v89.i32 = v22.i32
// v90.i32 = byte_swap v89.i32
// store v87.i64, v90.i32
// This could ideally become:
// v21.i32 = load v20.i64
// ... (DCE takes care of this) ...
// store v87.i64, v21.i32
//
// - Simplification
// Run over the instructions and rename assigned variables:
// v1 = v0
// v2 = v1
// v3 = add v0, v2
// becomes:
// v1 = v0 (will be removed by DCE)
// v2 = v0 (will be removed by DCE)
// v3 = add v0, v0
// This could be run several times, as it could make other passes faster
// to compute (for example, ConstantPropagation). DCE will take care of
// the useless assigns.
//
// - DeadStoreElimination
// Generic DSE pass, removing all redundant stores. ContextPromotion may be
// able to take care of most of these, as the input assembly is generally
// pretty optimized already. This pass would mainly be looking for introduced
// stores, such as those from comparisons.
//
// Example:
// <block0>:
// v0 = compare_ult ... (later removed by DCE)
// v1 = compare_ugt ... (later removed by DCE)
// v2 = compare_eq ...
// store_context +300, v0 <-- removed
// store_context +301, v1 <-- removed
// store_context +302, v2 <-- removed
// branch_true v1, ...
// <block1>:
// v3 = compare_ult ...
// v4 = compare_ugt ...
// v5 = compare_eq ...
// store_context +300, v3 <-- these may be required if at end of function
// store_context +301, v4 or before a call
// store_context +302, v5
// branch_true v5, ...
//
// - DeadCodeElimination
// ContextPromotion/DSE will likely leave around a lot of dead statements.
// Code generated for comparison/testing produces many unused statements and
// with proper use analysis it should be possible to remove most of them:
// After context promotion/simplification:
// v33.i8 = compare_ult v31.i32, 0
// v34.i8 = compare_ugt v31.i32, 0
// v35.i8 = compare_eq v31.i32, 0
// store_context +300, v33.i8
// store_context +301, v34.i8
// store_context +302, v35.i8
// branch_true v35.i8, loc_8201A484
// After DSE:
// v33.i8 = compare_ult v31.i32, 0
// v34.i8 = compare_ugt v31.i32, 0
// v35.i8 = compare_eq v31.i32, 0
// branch_true v35.i8, loc_8201A484
// After DCE:
// v35.i8 = compare_eq v31.i32, 0
// branch_true v35.i8, loc_8201A484
//
#endif // ALLOY_COMPILER_PASSES_H_

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@ -1,22 +0,0 @@
/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include <alloy/compiler/passes/mem2reg_pass.h>
using namespace alloy;
using namespace alloy::compiler;
using namespace alloy::compiler::passes;
Mem2RegPass::Mem2RegPass() :
Pass() {
}
Mem2RegPass::~Mem2RegPass() {
}

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@ -0,0 +1,83 @@
/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include <alloy/compiler/passes/simplification_pass.h>
#include <alloy/hir/function_builder.h>
using namespace alloy;
using namespace alloy::compiler;
using namespace alloy::compiler::passes;
using namespace alloy::hir;
SimplificationPass::SimplificationPass() :
Pass() {
}
SimplificationPass::~SimplificationPass() {
}
int SimplificationPass::Run(FunctionBuilder* builder) {
// Run over the instructions and rename assigned variables:
// v1 = v0
// v2 = v1
// v3 = add v0, v2
// becomes:
// v1 = v0
// v2 = v0
// v3 = add v0, v0
// This could be run several times, as it could make other passes faster
// to compute (for example, ConstantPropagation). DCE will take care of
// the useless assigns.
//
// We do this by walking each instruction. For each value op we
// look at its def instr to see if it's an assign - if so, we use the src
// of that instr. Because we may have chains, we do this recursively until
// we find a non-assign def.
Block* block = builder->first_block();
while (block) {
Instr* i = block->instr_head;
while (i) {
uint32_t signature = i->opcode->signature;
if (GET_OPCODE_SIG_TYPE_SRC1(signature) == OPCODE_SIG_TYPE_V) {
i->set_src1(CheckValue(i->src1.value));
}
if (GET_OPCODE_SIG_TYPE_SRC2(signature) == OPCODE_SIG_TYPE_V) {
i->set_src2(CheckValue(i->src2.value));
}
if (GET_OPCODE_SIG_TYPE_SRC3(signature) == OPCODE_SIG_TYPE_V) {
i->set_src3(CheckValue(i->src3.value));
}
i = i->next;
}
block = block->next;
}
return 0;
}
Value* SimplificationPass::CheckValue(Value* value) {
Instr* def = value->def;
if (def && def->opcode->num == OPCODE_ASSIGN) {
// Value comes from an assignment - recursively find if it comes from
// another assignment. It probably doesn't, if we already replaced it.
Value* replacement = def->src1.value;
while (true) {
def = replacement->def;
if (!def || def->opcode->num != OPCODE_ASSIGN) {
break;
}
replacement = def->src1.value;
}
return replacement;
}
return value;
}

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@ -7,8 +7,8 @@
******************************************************************************
*/
#ifndef ALLOY_COMPILER_PASSES_MEM2REG_PASS_H_
#define ALLOY_COMPILER_PASSES_MEM2REG_PASS_H_
#ifndef ALLOY_COMPILER_PASSES_SIMPLIFICATION_PASS_H_
#define ALLOY_COMPILER_PASSES_SIMPLIFICATION_PASS_H_
#include <alloy/compiler/pass.h>
@ -18,10 +18,15 @@ namespace compiler {
namespace passes {
class Mem2RegPass : public Pass {
class SimplificationPass : public Pass {
public:
Mem2RegPass();
virtual ~Mem2RegPass();
SimplificationPass();
virtual ~SimplificationPass();
virtual int Run(hir::FunctionBuilder* builder);
private:
hir::Value* CheckValue(hir::Value* value);
};
@ -30,4 +35,4 @@ public:
} // namespace alloy
#endif // ALLOY_COMPILER_PASSES_MEM2REG_PASS_H_
#endif // ALLOY_COMPILER_PASSES_SIMPLIFICATION_PASS_H_

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@ -1,7 +1,15 @@
# Copyright 2013 Ben Vanik. All Rights Reserved.
{
'sources': [
'mem2reg_pass.cc',
'mem2reg_pass.h',
#'constant_propagation_pass.cc',
#'constant_propagation_pass.h',
#'context_promotion_pass.cc',
#'context_promotion_pass.h',
#'dead_code_elimination_pass.cc',
#'dead_code_elimination_pass.h',
#'dead_store_elimination_pass.cc',
#'dead_store_elimination_pass.h',
'simplification_pass.cc',
'simplification_pass.h',
],
}

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@ -32,8 +32,13 @@ PPCTranslator::PPCTranslator(PPCFrontend* frontend) :
compiler_ = new Compiler();
// TODO(benvanik): passes in a sensible order/etc.
compiler_->AddPass(new passes::Mem2RegPass());
//compiler_->AddPass(new passes::ContextPromotionPass());
//compiler_->AddPass(new passes::ConstantPropagationPass());
//compiler_->AddPass(new passes::TypePropagationPass());
//compiler_->AddPass(new passes::ByteSwapEliminationPass());
compiler_->AddPass(new passes::SimplificationPass());
//compiler_->AddPass(new passes::DeadStoreEliminationPass());
//compiler_->AddPass(new passes::DeadCodeEliminationPass());
Backend* backend = frontend->runtime()->backend();
assembler_ = backend->CreateAssembler();

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@ -22,6 +22,8 @@ class Label;
class Block {
public:
Arena* arena;
Block* next;
Block* prev;

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@ -238,6 +238,7 @@ void FunctionBuilder::InsertLabel(Label* label, Instr* prev_instr) {
Block* next_block = prev_instr->block->next;
Block* new_block = arena_->Alloc<Block>();
new_block->arena = arena_;
new_block->prev = prev_block;
new_block->next = next_block;
if (prev_block) {
@ -269,6 +270,7 @@ void FunctionBuilder::InsertLabel(Label* label, Instr* prev_instr) {
Block* FunctionBuilder::AppendBlock() {
Block* block = arena_->Alloc<Block>();
block->arena = arena_;
block->next = NULL;
block->prev = block_tail_;
if (block_tail_) {
@ -314,6 +316,10 @@ Instr* FunctionBuilder::AppendInstr(
instr->opcode = &opcode_info;
instr->flags = flags;
instr->dest = dest;
instr->src1_use = instr->src2_use = instr->src3_use = NULL;
if (dest) {
dest->def = instr;
}
// Rely on callers to set src args.
// This prevents redundant stores.
return instr;
@ -324,6 +330,8 @@ Value* FunctionBuilder::AllocValue(TypeName type) {
value->ordinal = next_value_ordinal_++;
value->type = type;
value->flags = 0;
value->def = NULL;
value->use_head = NULL;
value->tag = NULL;
return value;
}
@ -334,6 +342,8 @@ Value* FunctionBuilder::CloneValue(Value* source) {
value->type = source->type;
value->flags = source->flags;
value->constant.i64 = source->constant.i64;
value->def = NULL;
value->use_head = NULL;
value->tag = NULL;
return value;
}
@ -400,7 +410,7 @@ void FunctionBuilder::DebugBreakTrue(Value* cond) {
}
Instr* i = AppendInstr(opcode, 0);
i->src1.value = cond;
i->set_src1(cond);
i->src2.value = i->src3.value = NULL;
EndBlock();
}
@ -430,7 +440,7 @@ void FunctionBuilder::TrapTrue(Value* cond) {
}
Instr* i = AppendInstr(opcode, 0);
i->src1.value = cond;
i->set_src1(cond);
i->src2.value = i->src3.value = NULL;
EndBlock();
}
@ -463,7 +473,7 @@ void FunctionBuilder::CallTrue(
}
Instr* i = AppendInstr(opcode, call_flags);
i->src1.value = cond;
i->set_src1(cond);
i->src2.symbol_info = symbol_info;
i->src3.value = NULL;
EndBlock();
@ -479,7 +489,7 @@ void FunctionBuilder::CallIndirect(
ASSERT_ADDRESS_TYPE(value);
Instr* i = AppendInstr(opcode, call_flags);
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
EndBlock();
}
@ -499,8 +509,8 @@ void FunctionBuilder::CallIndirectTrue(
ASSERT_ADDRESS_TYPE(value);
Instr* i = AppendInstr(opcode, call_flags);
i->src1.value = cond;
i->src2.value = value;
i->set_src1(cond);
i->set_src2(value);
i->src3.value = NULL;
EndBlock();
}
@ -547,7 +557,7 @@ void FunctionBuilder::BranchIf(
}
Instr* i = AppendInstr(opcode, branch_flags);
i->src1.value = cond;
i->set_src1(cond);
i->src2.label = true_label;
i->src3.label = false_label;
EndBlock();
@ -567,7 +577,7 @@ void FunctionBuilder::BranchTrue(
}
Instr* i = AppendInstr(opcode, branch_flags);
i->src1.value = cond;
i->set_src1(cond);
i->src2.label = label;
i->src3.value = NULL;
EndBlock();
@ -587,7 +597,7 @@ void FunctionBuilder::BranchFalse(
}
Instr* i = AppendInstr(opcode, branch_flags);
i->src1.value = cond;
i->set_src1(cond);
i->src2.label = label;
i->src3.value = NULL;
EndBlock();
@ -609,7 +619,7 @@ Value* FunctionBuilder::Assign(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -632,7 +642,7 @@ Value* FunctionBuilder::Cast(Value* value, TypeName target_type) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -655,7 +665,7 @@ Value* FunctionBuilder::ZeroExtend(Value* value, TypeName target_type) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -678,7 +688,7 @@ Value* FunctionBuilder::SignExtend(Value* value, TypeName target_type) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -704,7 +714,7 @@ Value* FunctionBuilder::Truncate(Value* value, TypeName target_type) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -728,7 +738,7 @@ Value* FunctionBuilder::Convert(Value* value, TypeName target_type,
Instr* i = AppendInstr(
opcode, round_mode,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -751,7 +761,7 @@ Value* FunctionBuilder::Round(Value* value, RoundMode round_mode) {
Instr* i = AppendInstr(
opcode, round_mode,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -768,7 +778,7 @@ Value* FunctionBuilder::VectorConvertI2F(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -785,7 +795,7 @@ Value* FunctionBuilder::VectorConvertF2I(Value* value, RoundMode round_mode) {
Instr* i = AppendInstr(
opcode, round_mode,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -887,7 +897,7 @@ void FunctionBuilder::StoreContext(size_t offset, Value* value) {
Instr* i = AppendInstr(opcode, 0);
i->src1.offset = offset;
i->src2.value = value;
i->set_src2(value);
i->src3.value = NULL;
}
@ -903,7 +913,7 @@ Value* FunctionBuilder::Load(
Instr* i = AppendInstr(
opcode, load_flags,
AllocValue(type));
i->src1.value = address;
i->set_src1(address);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -920,7 +930,7 @@ Value* FunctionBuilder::LoadAcquire(
Instr* i = AppendInstr(
opcode, load_flags,
AllocValue(type));
i->src1.value = address;
i->set_src1(address);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -935,8 +945,8 @@ void FunctionBuilder::Store(
ASSERT_ADDRESS_TYPE(address);
Instr* i = AppendInstr(opcode, store_flags);
i->src1.value = address;
i->src2.value = value;
i->set_src1(address);
i->set_src2(value);
i->src3.value = NULL;
}
@ -951,8 +961,8 @@ Value* FunctionBuilder::StoreRelease(
ASSERT_ADDRESS_TYPE(address);
Instr* i = AppendInstr(opcode, store_flags,
AllocValue(INT8_TYPE));
i->src1.value = address;
i->src2.value = value;
i->set_src1(address);
i->set_src2(value);
i->src3.value = NULL;
return i->dest;
}
@ -967,7 +977,7 @@ void FunctionBuilder::Prefetch(
ASSERT_ADDRESS_TYPE(address);
Instr* i = AppendInstr(opcode, prefetch_flags);
i->src1.value = address;
i->set_src1(address);
i->src2.offset = length;
i->src3.value = NULL;
}
@ -989,8 +999,8 @@ Value* FunctionBuilder::Max(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1012,8 +1022,8 @@ Value* FunctionBuilder::Min(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1035,9 +1045,9 @@ Value* FunctionBuilder::Select(Value* cond, Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = cond;
i->src2.value = value1;
i->src3.value = value2;
i->set_src1(cond);
i->set_src2(value1);
i->set_src3(value2);
return i->dest;
}
@ -1055,7 +1065,7 @@ Value* FunctionBuilder::IsTrue(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1074,7 +1084,7 @@ Value* FunctionBuilder::IsFalse(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1089,8 +1099,8 @@ Value* FunctionBuilder::CompareXX(
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1195,7 +1205,7 @@ Value* FunctionBuilder::DidCarry(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1210,7 +1220,7 @@ Value* FunctionBuilder::DidOverflow(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1226,8 +1236,8 @@ Value* FunctionBuilder::VectorCompareXX(
Instr* i = AppendInstr(
opcode, part_type,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1308,8 +1318,8 @@ Value* FunctionBuilder::Add(
Instr* i = AppendInstr(
opcode, arithmetic_flags,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1344,9 +1354,9 @@ Value* FunctionBuilder::AddWithCarry(
Instr* i = AppendInstr(
opcode, arithmetic_flags,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->src3.value = value3;
i->set_src1(value1);
i->set_src2(value2);
i->set_src3(value3);
return i->dest;
}
@ -1376,8 +1386,8 @@ Value* FunctionBuilder::Sub(
Instr* i = AppendInstr(
opcode, arithmetic_flags,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1400,8 +1410,8 @@ Value* FunctionBuilder::Mul(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1424,8 +1434,8 @@ Value* FunctionBuilder::Div(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1448,8 +1458,8 @@ Value* FunctionBuilder::Rem(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1480,9 +1490,9 @@ Value* FunctionBuilder::MulAdd(Value* value1, Value* value2, Value* value3) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->src3.value = value3;
i->set_src1(value1);
i->set_src2(value2);
i->set_src3(value3);
return i->dest;
}
@ -1512,9 +1522,9 @@ Value* FunctionBuilder::MulSub(Value* value1, Value* value2, Value* value3) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->src3.value = value3;
i->set_src1(value1);
i->set_src2(value2);
i->set_src3(value3);
return i->dest;
}
@ -1536,7 +1546,7 @@ Value* FunctionBuilder::Neg(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1559,7 +1569,7 @@ Value* FunctionBuilder::Abs(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1582,7 +1592,7 @@ Value* FunctionBuilder::Sqrt(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1599,7 +1609,7 @@ Value* FunctionBuilder::RSqrt(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1618,8 +1628,8 @@ Value* FunctionBuilder::DotProduct3(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(FLOAT32_TYPE));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1638,8 +1648,8 @@ Value* FunctionBuilder::DotProduct4(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(FLOAT32_TYPE));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1668,8 +1678,8 @@ Value* FunctionBuilder::And(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1698,8 +1708,8 @@ Value* FunctionBuilder::Or(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1724,8 +1734,8 @@ Value* FunctionBuilder::Xor(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1748,7 +1758,7 @@ Value* FunctionBuilder::Not(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1780,8 +1790,8 @@ Value* FunctionBuilder::Shl(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1803,8 +1813,8 @@ Value* FunctionBuilder::VectorShl(Value* value1, Value* value2,
Instr* i = AppendInstr(
opcode, part_type,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1834,8 +1844,8 @@ Value* FunctionBuilder::Shr(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1868,8 +1878,8 @@ Value* FunctionBuilder::Sha(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1898,8 +1908,8 @@ Value* FunctionBuilder::RotateLeft(Value* value1, Value* value2) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = value1;
i->src2.value = value2;
i->set_src1(value1);
i->set_src2(value2);
i->src3.value = NULL;
return i->dest;
}
@ -1923,7 +1933,7 @@ Value* FunctionBuilder::ByteSwap(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1945,7 +1955,7 @@ Value* FunctionBuilder::CountLeadingZeros(Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(INT8_TYPE));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -1962,9 +1972,9 @@ Value* FunctionBuilder::Insert(Value* value, uint32_t index, Value* part) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.offset = index;
i->src3.value = part;
i->set_src3(part);
return i->dest;
}
@ -1980,7 +1990,7 @@ Value* FunctionBuilder::Extract(Value* value, uint32_t index, TypeName target_ty
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.offset = index;
i->src3.value = NULL;
return i->dest;
@ -1998,7 +2008,7 @@ Value* FunctionBuilder::Splat(Value* value, TypeName target_type) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(target_type));
i->src1.value = value;
i->set_src1(value);
i->src2.value = i->src3.value = NULL;
return i->dest;
}
@ -2020,9 +2030,9 @@ Value* FunctionBuilder::Permute(
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value1->type));
i->src1.value = control;
i->src2.value = value1;
i->src3.value = value2;
i->set_src1(control);
i->set_src2(value1);
i->set_src3(value2);
return i->dest;
}
@ -2046,7 +2056,7 @@ Value* FunctionBuilder::Swizzle(
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = value;
i->set_src1(value);
i->src2.offset = swizzle_mask;
i->src3.value = NULL;
return i->dest;
@ -2067,9 +2077,9 @@ Value* FunctionBuilder::CompareExchange(
Instr* i = AppendInstr(
opcode, 0,
AllocValue(exchange_value->type));
i->src1.value = address;
i->src2.value = compare_value;
i->src3.value = exchange_value;
i->set_src1(address);
i->set_src2(compare_value);
i->set_src3(exchange_value);
return i->dest;
}
@ -2085,8 +2095,8 @@ Value* FunctionBuilder::AtomicAdd(Value* address, Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = address;
i->src2.value = value;
i->set_src1(address);
i->set_src2(value);
i->src3.value = NULL;
return i->dest;
}
@ -2103,8 +2113,8 @@ Value* FunctionBuilder::AtomicSub(Value* address, Value* value) {
Instr* i = AppendInstr(
opcode, 0,
AllocValue(value->type));
i->src1.value = address;
i->src2.value = value;
i->set_src1(address);
i->set_src2(value);
i->src3.value = NULL;
return i->dest;
}

View File

@ -34,6 +34,8 @@ public:
void Dump(StringBuffer* str);
Arena* arena() const { return arena_; }
uint32_t attributes() const { return attributes_; }
void set_attributes(uint32_t value) { attributes_ = value; }

View File

@ -9,5 +9,41 @@
#include <alloy/hir/instr.h>
#include <alloy/hir/block.h>
using namespace alloy;
using namespace alloy::hir;
void Instr::set_src1(Value* value) {
if (src1.value == value) {
return;
}
if (src1.value) {
src1.value->RemoveUse(src1_use);
}
src1.value = value;
src1_use = value ? value->AddUse(block->arena, this) : NULL;
}
void Instr::set_src2(Value* value) {
if (src2.value == value) {
return;
}
if (src2.value) {
src2.value->RemoveUse(src2_use);
}
src2.value = value;
src2_use = value ? value->AddUse(block->arena, this) : NULL;
}
void Instr::set_src3(Value* value) {
if (src3.value == value) {
return;
}
if (src3.value) {
src3.value->RemoveUse(src3_use);
}
src3.value = value;
src3_use = value ? value->AddUse(block->arena, this) : NULL;
}

View File

@ -45,6 +45,14 @@ public:
Op src1;
Op src2;
Op src3;
Value::Use* src1_use;
Value::Use* src2_use;
Value::Use* src3_use;
void set_src1(Value* value);
void set_src2(Value* value);
void set_src3(Value* value);
};

View File

@ -13,6 +13,29 @@ using namespace alloy;
using namespace alloy::hir;
Value::Use* Value::AddUse(Arena* arena, Instr* instr) {
Use* use = arena->Alloc<Use>();
use->instr = instr;
use->prev = NULL;
use->next = use_head;
if (use_head) {
use_head->prev = use;
}
use_head = use;
return use;
}
void Value::RemoveUse(Use* use) {
if (use == use_head) {
use_head = use->next;
} else {
use->prev->next = use->next;
}
if (use->next) {
use->next->prev = use->prev;
}
}
uint64_t Value::AsUint64() {
XEASSERT(IsConstant());
switch (type) {

View File

@ -17,6 +17,8 @@
namespace alloy {
namespace hir {
class Instr;
enum TypeName {
INT8_TYPE,
@ -36,6 +38,13 @@ enum ValueFlags {
class Value {
public:
typedef struct Use_s {
Instr* instr;
Use_s* prev;
Use_s* next;
} Use;
public:
uint32_t ordinal;
TypeName type;
@ -51,7 +60,13 @@ public:
vec128_t v128;
} constant;
void* tag;
Instr* def;
Use* use_head;
void* tag;
Use* AddUse(Arena* arena, Instr* instr);
void RemoveUse(Use* use);
void set_zero(TypeName type) {
this->type = type;