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add tbaa
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Dibyendu Majumdar committed Feb 25, 2015
1 parent fffe146 commit 87f3720
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Showing 2 changed files with 211 additions and 26 deletions.
2 changes: 2 additions & 0 deletions include/ravillvm.h
View file
Expand Up @@ -17,8 +17,10 @@
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IR/Metadata.h"
#include "llvm/PassManager.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/Host.h"
Expand Down
235 changes: 209 additions & 26 deletions src/ravijit.cpp
View file
Expand Up @@ -171,9 +171,32 @@ struct LuaLLVMTypes {
std::array<llvm::Constant *, 21> kInt;

llvm::Constant *kFalse;

llvm::MDBuilder mdbuilder;
llvm::MDNode *tbaa_root;
llvm::MDNode *tbaa_charT;
llvm::MDNode *tbaa_shortT;
llvm::MDNode *tbaa_intT;
llvm::MDNode *tbaa_longlongT;
llvm::MDNode *tbaa_pointerT;
llvm::MDNode *tbaa_CallInfo_lT;
llvm::MDNode *tbaa_CallInfoT;
llvm::MDNode *tbaa_luaStateT;
llvm::MDNode *tbaa_luaState_ciT;
llvm::MDNode *tbaa_luaState_ci_baseT;
llvm::MDNode *tbaa_CallInfo_funcT;
llvm::MDNode *tbaa_CallInfo_func_LClosureT;
llvm::MDNode *tbaa_LClosureT;
llvm::MDNode *tbaa_LClosure_pT;
llvm::MDNode *tbaa_ProtoT;
llvm::MDNode *tbaa_Proto_kT;
llvm::MDNode *tbaa_TValueT;
llvm::MDNode *tbaa_TValue_nT;
llvm::MDNode *tbaa_TValue_ttT;

};

LuaLLVMTypes::LuaLLVMTypes(llvm::LLVMContext &context) {
LuaLLVMTypes::LuaLLVMTypes(llvm::LLVMContext &context) : mdbuilder(context) {

static_assert(std::is_floating_point<lua_Number>::value &&
sizeof(lua_Number) == sizeof(double),
Expand Down Expand Up @@ -794,6 +817,146 @@ LuaLLVMTypes::LuaLLVMTypes(llvm::LLVMContext &context) {
kInt[j] = llvm::ConstantInt::get(C_intT, j);

kFalse = llvm::ConstantInt::getFalse(llvm::Type::getInt1Ty(context));

// Do what Clang does
//!5 = metadata !{metadata !"Simple C/C++ TBAA"}
tbaa_root = mdbuilder.createTBAARoot("Simple C / C++ TBAA");
//!4 = metadata !{metadata !"omnipotent char", metadata !5, i64 0}
tbaa_charT = mdbuilder.createTBAAScalarTypeNode("omnipotent char", tbaa_root, 0);
//!3 = metadata !{metadata !"any pointer", metadata !4, i64 0}
tbaa_pointerT = mdbuilder.createTBAAScalarTypeNode("any pointer", tbaa_charT, 0);
//!10 = metadata !{metadata !"short", metadata !4, i64 0}
tbaa_shortT = mdbuilder.createTBAAScalarTypeNode("short", tbaa_charT, 0);
//!11 = metadata !{metadata !"int", metadata !4, i64 0}
tbaa_intT = mdbuilder.createTBAAScalarTypeNode("int", tbaa_charT, 0);
//!9 = metadata !{metadata !"long long", metadata !4, i64 0}
tbaa_longlongT = mdbuilder.createTBAAScalarTypeNode("long long", tbaa_charT, 0);

//!14 = metadata !{metadata !"CallInfoL", metadata !3, i64 0, metadata !3, i64 4, metadata !9, i64 8}
std::vector<std::pair<llvm::MDNode *, uint64_t> > nodes;
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 4));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_longlongT, 8));
tbaa_CallInfo_lT = mdbuilder.createTBAAStructTypeNode("CallInfo_l", nodes);

//!13 = metadata !{metadata !"CallInfoLua",
// metadata !3, i64 0, metadata !3, i64 4, metadata !3, i64 8,
// metadata !3, i64 12, metadata !14, i64 16, metadata !9, i64 32,
// metadata !10, i64 40, metadata !4, i64 42}
nodes.clear();
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 4));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 8));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 12));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_CallInfo_lT, 16));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_longlongT, 32));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_shortT, 40));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 42));
tbaa_CallInfoT = mdbuilder.createTBAAStructTypeNode("CallInfo", nodes);

//!7 = metadata !{metadata !"lua_State",
// metadata !3, i64 0, metadata !4, i64 4, metadata !4, i64 5,
// metadata !4, i64 6, metadata !3, i64 8, metadata !3, i64 12,
// metadata !3, i64 16, metadata !3, i64 20, metadata !3, i64 24,
// metadata !3, i64 28, metadata !3, i64 32, metadata !3, i64 36,
// metadata !3, i64 40, metadata !3, i64 44, metadata !8, i64 48,
// metadata !3, i64 104, metadata !9, i64 112, metadata !11, i64 120,
// metadata !11, i64 124, metadata !11, i64 128, metadata !10, i64 132,
// metadata !10, i64 134, metadata !4, i64 136, metadata !4, i64 137}
nodes.clear();
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 4));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 5));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 6));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 8));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 12));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 16));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 20));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 24));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 28));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 32));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 36));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 40));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 44));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_CallInfoT, 48));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 92));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_longlongT, 96));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 104));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 108));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 112));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_shortT, 114));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_shortT, 116));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 118));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 119));
tbaa_luaStateT = mdbuilder.createTBAAStructTypeNode("lua_State", nodes);

tbaa_luaState_ciT = mdbuilder.createTBAAStructTagNode(tbaa_luaStateT, tbaa_CallInfoT, 16);
tbaa_luaState_ci_baseT = mdbuilder.createTBAAStructTagNode(tbaa_CallInfoT, tbaa_pointerT, 16);
tbaa_CallInfo_funcT = mdbuilder.createTBAAStructTagNode(tbaa_CallInfoT, tbaa_pointerT, 0);
tbaa_CallInfo_func_LClosureT = mdbuilder.createTBAAStructTagNode(tbaa_pointerT, tbaa_pointerT, 0);

//!20 = metadata !{metadata !"Proto",
// metadata !3, i64 0, metadata !4, i64 4, metadata !4, i64 5,
// metadata !4, i64 6, metadata !4, i64 7, metadata !4, i64 8,
// metadata !11, i64 12, metadata !11, i64 16, metadata !11, i64 20,
// metadata !11, i64 24, metadata !11, i64 28, metadata !11, i64 32,
// metadata !11, i64 36, metadata !11, i64 40, metadata !3, i64 44,
// metadata !3, i64 48, metadata !3, i64 52, metadata !3, i64 56,
// metadata !3, i64 60, metadata !3, i64 64, metadata !3, i64 68,
// metadata !3, i64 72, metadata !3, i64 76}
nodes.clear();
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 4));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 5));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 6));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 7));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 8));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 12));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 16));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 20));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 24));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 28));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 32));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 36));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 40));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 44));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 48));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 52));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 56));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 60));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 64));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 68));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 72));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 76));
tbaa_ProtoT = mdbuilder.createTBAAStructTypeNode("Proto", nodes);

//!18 = metadata !{metadata !"LClosure",
// metadata !3, i64 0, metadata !4, i64 4, metadata !4, i64 5,
// metadata !4, i64 6, metadata !3, i64 8, metadata !3, i64 12,
// metadata !4, i64 16}
nodes.clear();
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 4));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 5));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 6));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 8));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_pointerT, 12));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_charT, 16));
tbaa_LClosureT = mdbuilder.createTBAAStructTypeNode("LClosure", nodes);

tbaa_LClosure_pT = mdbuilder.createTBAAStructTagNode(tbaa_LClosureT, tbaa_pointerT, 12);

//!19 = metadata !{metadata !20, metadata !3, i64 44}
tbaa_Proto_kT = mdbuilder.createTBAAStructTagNode(tbaa_ProtoT, tbaa_pointerT, 44);

nodes.clear();
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_longlongT, 0));
nodes.push_back(std::pair<llvm::MDNode*, uint64_t>(tbaa_intT, 8));
tbaa_TValueT = mdbuilder.createTBAAStructTypeNode("TValue", nodes);

tbaa_TValue_nT = mdbuilder.createTBAAStructTagNode(tbaa_TValueT, tbaa_longlongT, 0);
tbaa_TValue_ttT = mdbuilder.createTBAAStructTagNode(tbaa_TValueT, tbaa_intT, 8);

}

void LuaLLVMTypes::dump() {
Expand Down Expand Up @@ -1015,6 +1178,8 @@ RaviJITFunctionImpl::RaviJITFunctionImpl(
fprintf(stderr, "Could not create ExecutionEngine: %s\n", errStr.c_str());
return;
}
auto target_layout = engine_->getTargetMachine()->getDataLayout();
module_->setDataLayout(target_layout);
}

RaviJITFunctionImpl::~RaviJITFunctionImpl() {
Expand All @@ -1030,7 +1195,7 @@ RaviJITFunctionImpl::~RaviJITFunctionImpl() {

void *RaviJITFunctionImpl::compile() {

//function_->dump();
//module_->dump();

// Create a function pass manager for this engine
llvm::FunctionPassManager *FPM = new llvm::FunctionPassManager(module_);
Expand All @@ -1046,6 +1211,7 @@ void *RaviJITFunctionImpl::compile() {
FPM->add(llvm::createInstructionCombiningPass());
// Reassociate expressions.
FPM->add(llvm::createReassociatePass());
FPM->add(llvm::createTypeBasedAliasAnalysisPass());
// Eliminate Common SubExpressions.
FPM->add(llvm::createGVNPass());
// Simplify the control flow graph (deleting unreachable blocks, etc).
Expand Down Expand Up @@ -1114,14 +1280,16 @@ struct RaviFunctionDef {
llvm::Constant *luaV_lessequalF;
llvm::Constant *luaG_runerrorF;
std::vector<llvm::BasicBlock *> jmp_targets;
// Pointer to proto
//llvm::Value *proto;
// Load pointer to proto
llvm::Value *proto_ptr;
llvm::Instruction *proto_ptr;
// Obtain pointer to Proto->k
llvm::Value *proto_k;
// Load pointer to k
llvm::Value *k_ptr;
llvm::Instruction *k_ptr;
// Load L->ci
llvm::Instruction *ci_val;
// Get pointer to base
llvm::Value *Ci_base;

};

Expand Down Expand Up @@ -1294,13 +1462,13 @@ void RaviCodeGenerator::emit_FORPREP(RaviFunctionDef *def, llvm::Value *L_ci,
//} break;

// Load L->ci
llvm::Value *ci_val = def->builder->CreateLoad(L_ci);
//llvm::Value *ci_val = def->builder->CreateLoad(L_ci);

// Get pointer to base
llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);
//llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);

// Load pointer to base
llvm::Value *base_ptr = def->builder->CreateLoad(Ci_base);
llvm::Value *base_ptr = def->builder->CreateLoad(def->Ci_base);

// Load pointer to k
llvm::Value *k_ptr = def->k_ptr;
Expand All @@ -1320,13 +1488,14 @@ void RaviCodeGenerator::emit_LOADK(RaviFunctionDef *def, llvm::Value *L_ci,
// } break;

// Load L->ci
llvm::Value *ci_val = def->builder->CreateLoad(L_ci);
//llvm::Value *ci_val = def->builder->CreateLoad(L_ci);

// Get pointer to base
llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);
//llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);

// Load pointer to base
llvm::Value *base_ptr = def->builder->CreateLoad(Ci_base);
llvm::Instruction *base_ptr = def->builder->CreateLoad(def->Ci_base);
base_ptr->setMetadata(llvm::LLVMContext::MD_tbaa, def->types->tbaa_luaState_ci_baseT);

// Load pointer to k
llvm::Value *k_ptr = def->k_ptr;
Expand Down Expand Up @@ -1356,12 +1525,15 @@ void RaviCodeGenerator::emit_LOADK(RaviFunctionDef *def, llvm::Value *L_ci,
// destvalue->value->i = srcvalue->value->i;
llvm::Value *srcvalue = emit_gep(def, "srcvalue", src, 0, 0, 0);
llvm::Value *destvalue = emit_gep(def, "destvalue", dest, 0, 0, 0);
def->builder->CreateStore(def->builder->CreateLoad(srcvalue), destvalue);
llvm::Instruction *store = def->builder->CreateStore(def->builder->CreateLoad(srcvalue), destvalue);
store->setMetadata(llvm::LLVMContext::MD_tbaa, def->types->tbaa_TValue_nT);

// destvalue->type = srcvalue->type
llvm::Value *srctype = emit_gep(def, "srctype", src, 0, 1);
llvm::Value *desttype = emit_gep(def, "desttype", dest, 0, 1);
def->builder->CreateStore(def->builder->CreateLoad(srctype), desttype);
store = def->builder->CreateStore(def->builder->CreateLoad(srctype), desttype);
store->setMetadata(llvm::LLVMContext::MD_tbaa, def->types->tbaa_TValue_ttT);

#else
// First get the declaration for the inttrinsic memcpy
llvm::SmallVector<llvm::Type *, 3> vec;
Expand Down Expand Up @@ -1422,13 +1594,14 @@ void RaviCodeGenerator::emit_RETURN(RaviFunctionDef *def, llvm::Value *L_ci,
}

// Load L->ci
llvm::Value *ci_val = def->builder->CreateLoad(L_ci);
//llvm::Value *ci_val = def->builder->CreateLoad(L_ci);

// Get pointer to base
llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);
//llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);

// Load pointer to base
llvm::Value *base_ptr = def->builder->CreateLoad(Ci_base);
llvm::Instruction *base_ptr = def->builder->CreateLoad(def->Ci_base);
base_ptr->setMetadata(llvm::LLVMContext::MD_tbaa, def->types->tbaa_luaState_ci_baseT);

// Load pointer to k
llvm::Value *k_ptr = def->k_ptr;
Expand Down Expand Up @@ -1483,7 +1656,7 @@ void RaviCodeGenerator::emit_RETURN(RaviFunctionDef *def, llvm::Value *L_ci,
def->builder->CreateCondBr(result_is_notzero, ThenBB, ElseBB);
def->builder->SetInsertPoint(ThenBB);
// Get pointer to ci->top
llvm::Value *citop = emit_gep(def, "ci_top", ci_val, 0, 1);
llvm::Value *citop = emit_gep(def, "ci_top", def->ci_val, 0, 1);
// Load ci->top
llvm::Value *citop_val = def->builder->CreateLoad(citop);
if (!top)
Expand Down Expand Up @@ -1515,13 +1688,13 @@ void RaviCodeGenerator::emit_EQ(RaviFunctionDef *def, llvm::Value *L_ci,
// } break;

// Load L->ci
llvm::Value *ci_val = def->builder->CreateLoad(L_ci);
//llvm::Value *ci_val = def->builder->CreateLoad(L_ci);

// Get pointer to base
llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);
//llvm::Value *Ci_base = emit_gep(def, "base", ci_val, 0, 4, 0);

// Load pointer to base
llvm::Value *base_ptr = def->builder->CreateLoad(Ci_base);
llvm::Value *base_ptr = def->builder->CreateLoad(def->Ci_base);

// Load pointer to k
llvm::Value *k_ptr = def->k_ptr;
Expand Down Expand Up @@ -1565,10 +1738,10 @@ void RaviCodeGenerator::emit_EQ(RaviFunctionDef *def, llvm::Value *L_ci,
if (jA > 0) {
// jA is the A operand of the Jump instruction
// Get pointer to base
llvm::Value *Ci_base2 = emit_gep(def, "base", ci_val, 0, 4, 0);
//llvm::Value *Ci_base2 = emit_gep(def, "base", ci_val, 0, 4, 0);

// Load pointer to base
llvm::Value *base2_ptr = def->builder->CreateLoad(Ci_base2);
llvm::Value *base2_ptr = def->builder->CreateLoad(def->Ci_base);

// base + a - 1
llvm::Value *val =
Expand Down Expand Up @@ -1738,29 +1911,39 @@ void RaviCodeGenerator::compile(lua_State *L, Proto *p) {
llvm::Value *L_ci = emit_gep(&def, "L_ci", def.L, 0, 6);

// Load pointer value
llvm::Value *ci_val = builder.CreateLoad(L_ci);
//llvm::Value *ci_val = builder.CreateLoad(L_ci);

// Load L->ci
def.ci_val = builder.CreateLoad(L_ci);
def.ci_val->setMetadata(llvm::LLVMContext::MD_tbaa, def.types->tbaa_CallInfoT);

// Get pointer to base
def.Ci_base = emit_gep(&def, "base", def.ci_val, 0, 4, 0);

// We need to get hold of the constants table
// which is located in ci->func->value_.gc
// and is a value of type LClosure*
// fortunately as func is at the beginning of the ci
// structure we can just cast ci to LClosure*
llvm::Value *L_cl = emit_gep_ci_func_value_gc_asLClosure(&def, ci_val);
llvm::Value *L_cl = emit_gep_ci_func_value_gc_asLClosure(&def, def.ci_val);

// Load pointer to LClosure
llvm::Value *cl_ptr = builder.CreateLoad(L_cl);
llvm::Instruction *cl_ptr = builder.CreateLoad(L_cl);
cl_ptr->setMetadata(llvm::LLVMContext::MD_tbaa, def.types->tbaa_CallInfo_func_LClosureT);

// Get pointer to the Proto* which is cl->p
llvm::Value *proto = emit_gep(&def, "Proto", cl_ptr, 0, 5);

// Load pointer to proto
def.proto_ptr = builder.CreateLoad(proto);
def.proto_ptr->setMetadata(llvm::LLVMContext::MD_tbaa, def.types->tbaa_LClosure_pT);

// Obtain pointer to Proto->k
def.proto_k = emit_gep(&def, "k", def.proto_ptr, 0, 14);

// Load pointer to k
def.k_ptr = builder.CreateLoad(def.proto_k);
def.k_ptr->setMetadata(llvm::LLVMContext::MD_tbaa, def.types->tbaa_Proto_kT);

const Instruction *code = p->code;
int pc, n = p->sizecode;
Expand Down

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