mirror of
https://github.com/xomboverlord/ldc.git
synced 2026-01-12 02:43:14 +01:00
27d3ab4546
- Implement x86-64 extern(C), hopefully correctly.
- Tried to be a bit smarter about extern(D) while I was there.
Interestingly, this code seems to be generating more efficient code than
gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from
a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while
this code generates a 4-byte, a 2-byte and a 1-byte load)
I also added some changes to make sure structs being returned from functions or
passed in as parameters are stored in memory where the rest of the backend seems
to expect them to be. These should be removed when support for first-class
aggregates improves.
1519 lines
44 KiB
C++
1519 lines
44 KiB
C++
// Statements: D -> LLVM glue
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#include <stdio.h>
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#include <math.h>
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#include <fstream>
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#include "gen/llvm.h"
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#include "llvm/InlineAsm.h"
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#include "llvm/Support/CFG.h"
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#include "mars.h"
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#include "total.h"
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#include "init.h"
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#include "mtype.h"
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#include "hdrgen.h"
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#include "port.h"
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#include "module.h"
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#include "gen/irstate.h"
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#include "gen/logger.h"
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#include "gen/tollvm.h"
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#include "gen/llvmhelpers.h"
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#include "gen/runtime.h"
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#include "gen/arrays.h"
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#include "gen/todebug.h"
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#include "gen/dvalue.h"
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#include "gen/abi.h"
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#include "ir/irfunction.h"
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#include "ir/irmodule.h"
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#include "ir/irlandingpad.h"
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//////////////////////////////////////////////////////////////////////////////
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void CompoundStatement::toIR(IRState* p)
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{
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Logger::println("CompoundStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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for (int i=0; i<statements->dim; i++)
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{
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Statement* s = (Statement*)statements->data[i];
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if (s) {
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s->toIR(p);
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}
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}
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}
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//////////////////////////////////////////////////////////////////////////////
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void ReturnStatement::toIR(IRState* p)
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{
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Logger::println("ReturnStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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// is there a return value expression?
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if (exp)
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{
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// if the functions return type is void this means that
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// we are returning through a pointer argument
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if (p->topfunc()->getReturnType() == LLType::VoidTy)
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{
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// sanity check
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IrFunction* f = p->func();
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assert(f->decl->ir.irFunc->retArg);
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// emit dbg line
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if (global.params.symdebug) DtoDwarfStopPoint(loc.linnum);
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// FIXME: is there ever a case where a sret return needs to be rewritten for the ABI?
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// get return pointer
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DValue* rvar = new DVarValue(f->type->next, f->decl->ir.irFunc->retArg);
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DValue* e = exp->toElem(p);
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// store return value
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DtoAssign(loc, rvar, e);
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// emit scopes
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DtoEnclosingHandlers(enclosinghandler, NULL);
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// emit dbg end function
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if (global.params.symdebug) DtoDwarfFuncEnd(f->decl);
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// emit ret
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llvm::ReturnInst::Create(p->scopebb());
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}
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// the return type is not void, so this is a normal "register" return
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else
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{
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if (global.params.symdebug) DtoDwarfStopPoint(loc.linnum);
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// do abi specific transformations on the return value
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LLValue* v = p->func()->type->fty->putRet(exp->type, exp->toElem(p));
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if (Logger::enabled())
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Logger::cout() << "return value is '" <<*v << "'\n";
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IrFunction* f = p->func();
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// Hack around LDC assuming structs are in memory:
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// If the function returns a struct, and the return value is a
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// pointer to a struct, load from it before returning.
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if (f->type->next->ty == Tstruct && isaPointer(v->getType())) {
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Logger::println("Loading struct type for return");
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v = DtoLoad(v);
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}
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// can happen for classes and void main
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if (v->getType() != p->topfunc()->getReturnType())
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{
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// for the main function this only happens if it is declared as void
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// and then contains a return (exp); statement. Since the actual
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// return type remains i32, we just throw away the exp value
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// and return 0 instead
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// if we're not in main, just bitcast
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if (p->topfunc() == p->mainFunc)
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v = llvm::Constant::getNullValue(p->mainFunc->getReturnType());
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else
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v = gIR->ir->CreateBitCast(v, p->topfunc()->getReturnType(), "tmp");
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if (Logger::enabled())
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Logger::cout() << "return value after cast: " << *v << '\n';
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}
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DtoEnclosingHandlers(enclosinghandler, NULL);
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if (global.params.symdebug) DtoDwarfFuncEnd(p->func()->decl);
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llvm::ReturnInst::Create(v, p->scopebb());
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}
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}
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// no return value expression means it's a void function
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else
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{
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assert(p->topfunc()->getReturnType() == LLType::VoidTy);
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DtoEnclosingHandlers(enclosinghandler, NULL);
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if (global.params.symdebug) DtoDwarfFuncEnd(p->func()->decl);
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llvm::ReturnInst::Create(p->scopebb());
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}
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// the return terminated this basicblock, start a new one
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* bb = llvm::BasicBlock::Create("afterreturn", p->topfunc(), oldend);
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p->scope() = IRScope(bb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void ExpStatement::toIR(IRState* p)
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{
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Logger::println("ExpStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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if (exp) {
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if (global.params.llvmAnnotate)
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DtoAnnotation(exp->toChars());
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elem* e;
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// a cast(void) around the expression is allowed, but doesn't require any code
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if(exp->op == TOKcast && exp->type == Type::tvoid) {
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CastExp* cexp = (CastExp*)exp;
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e = cexp->e1->toElem(p);
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}
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else
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e = exp->toElem(p);
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delete e;
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}
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/*elem* e = exp->toElem(p);
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p->buf.printf("%s", e->toChars());
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delete e;
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p->buf.writenl();*/
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}
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//////////////////////////////////////////////////////////////////////////////
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void IfStatement::toIR(IRState* p)
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{
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Logger::println("IfStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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if (match)
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DtoRawVarDeclaration(match);
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DValue* cond_e = condition->toElem(p);
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LLValue* cond_val = cond_e->getRVal();
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* ifbb = llvm::BasicBlock::Create("if", gIR->topfunc(), oldend);
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llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endif", gIR->topfunc(), oldend);
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llvm::BasicBlock* elsebb = elsebody ? llvm::BasicBlock::Create("else", gIR->topfunc(), endbb) : endbb;
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if (cond_val->getType() != LLType::Int1Ty) {
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if (Logger::enabled())
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Logger::cout() << "if conditional: " << *cond_val << '\n';
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cond_val = DtoCast(loc, cond_e, Type::tbool)->getRVal();
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}
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LLValue* ifgoback = llvm::BranchInst::Create(ifbb, elsebb, cond_val, gIR->scopebb());
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// replace current scope
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gIR->scope() = IRScope(ifbb,elsebb);
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// do scoped statements
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if (ifbody)
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ifbody->toIR(p);
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if (!gIR->scopereturned()) {
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llvm::BranchInst::Create(endbb,gIR->scopebb());
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}
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if (elsebody) {
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//assert(0);
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gIR->scope() = IRScope(elsebb,endbb);
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elsebody->toIR(p);
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if (!gIR->scopereturned()) {
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llvm::BranchInst::Create(endbb,gIR->scopebb());
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}
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}
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// rewrite the scope
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gIR->scope() = IRScope(endbb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void ScopeStatement::toIR(IRState* p)
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{
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Logger::println("ScopeStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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/*llvm::BasicBlock* oldend = p->scopeend();
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llvm::BasicBlock* beginbb = 0;
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// remove useless branches by clearing and reusing the current basicblock
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llvm::BasicBlock* bb = p->scopebb();
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if (bb->empty()) {
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beginbb = bb;
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}
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else {
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beginbb = llvm::BasicBlock::Create("scope", p->topfunc(), oldend);
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if (!p->scopereturned())
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llvm::BranchInst::Create(beginbb, bb);
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}
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llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endscope", p->topfunc(), oldend);
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if (beginbb != bb)
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p->scope() = IRScope(beginbb, endbb);
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else
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p->scope().end = endbb;*/
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if (statement)
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statement->toIR(p);
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/*p->scope().end = oldend;
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Logger::println("Erasing scope endbb");
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endbb->eraseFromParent();*/
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}
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//////////////////////////////////////////////////////////////////////////////
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void WhileStatement::toIR(IRState* p)
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{
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Logger::println("WhileStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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// create while blocks
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* whilebb = llvm::BasicBlock::Create("whilecond", gIR->topfunc(), oldend);
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llvm::BasicBlock* whilebodybb = llvm::BasicBlock::Create("whilebody", gIR->topfunc(), oldend);
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llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endwhile", gIR->topfunc(), oldend);
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// move into the while block
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p->ir->CreateBr(whilebb);
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//llvm::BranchInst::Create(whilebb, gIR->scopebb());
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// replace current scope
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gIR->scope() = IRScope(whilebb,endbb);
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// create the condition
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DValue* cond_e = condition->toElem(p);
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LLValue* cond_val = DtoCast(loc, cond_e, Type::tbool)->getRVal();
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delete cond_e;
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// conditional branch
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LLValue* ifbreak = llvm::BranchInst::Create(whilebodybb, endbb, cond_val, p->scopebb());
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// rewrite scope
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gIR->scope() = IRScope(whilebodybb,endbb);
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// while body code
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p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,whilebb,endbb));
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body->toIR(p);
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p->loopbbs.pop_back();
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// loop
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if (!gIR->scopereturned())
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llvm::BranchInst::Create(whilebb, gIR->scopebb());
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// rewrite the scope
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gIR->scope() = IRScope(endbb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void DoStatement::toIR(IRState* p)
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{
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Logger::println("DoStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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// create while blocks
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* dowhilebb = llvm::BasicBlock::Create("dowhile", gIR->topfunc(), oldend);
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llvm::BasicBlock* condbb = llvm::BasicBlock::Create("dowhilecond", gIR->topfunc(), oldend);
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llvm::BasicBlock* endbb = llvm::BasicBlock::Create("enddowhile", gIR->topfunc(), oldend);
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// move into the while block
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assert(!gIR->scopereturned());
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llvm::BranchInst::Create(dowhilebb, gIR->scopebb());
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// replace current scope
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gIR->scope() = IRScope(dowhilebb,condbb);
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// do-while body code
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p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,condbb,endbb));
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body->toIR(p);
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p->loopbbs.pop_back();
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// branch to condition block
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llvm::BranchInst::Create(condbb, gIR->scopebb());
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gIR->scope() = IRScope(condbb,endbb);
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// create the condition
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DValue* cond_e = condition->toElem(p);
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LLValue* cond_val = DtoCast(loc, cond_e, Type::tbool)->getRVal();
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delete cond_e;
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// conditional branch
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LLValue* ifbreak = llvm::BranchInst::Create(dowhilebb, endbb, cond_val, gIR->scopebb());
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// rewrite the scope
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gIR->scope() = IRScope(endbb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void ForStatement::toIR(IRState* p)
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{
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Logger::println("ForStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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// create for blocks
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* forbb = llvm::BasicBlock::Create("forcond", gIR->topfunc(), oldend);
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llvm::BasicBlock* forbodybb = llvm::BasicBlock::Create("forbody", gIR->topfunc(), oldend);
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llvm::BasicBlock* forincbb = llvm::BasicBlock::Create("forinc", gIR->topfunc(), oldend);
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llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endfor", gIR->topfunc(), oldend);
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// init
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if (init != 0)
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init->toIR(p);
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// move into the for condition block, ie. start the loop
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assert(!gIR->scopereturned());
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llvm::BranchInst::Create(forbb, gIR->scopebb());
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p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,forincbb,endbb));
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// replace current scope
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gIR->scope() = IRScope(forbb,forbodybb);
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// create the condition
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LLValue* cond_val;
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if (condition)
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{
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DValue* cond_e = condition->toElem(p);
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cond_val = DtoCast(loc, cond_e, Type::tbool)->getRVal();
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delete cond_e;
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}
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else
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{
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cond_val = DtoConstBool(true);
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}
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// conditional branch
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assert(!gIR->scopereturned());
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llvm::BranchInst::Create(forbodybb, endbb, cond_val, gIR->scopebb());
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// rewrite scope
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gIR->scope() = IRScope(forbodybb,forincbb);
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// do for body code
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body->toIR(p);
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// move into the for increment block
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if (!gIR->scopereturned())
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llvm::BranchInst::Create(forincbb, gIR->scopebb());
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gIR->scope() = IRScope(forincbb, endbb);
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// increment
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if (increment) {
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DValue* inc = increment->toElem(p);
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delete inc;
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}
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// loop
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if (!gIR->scopereturned())
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llvm::BranchInst::Create(forbb, gIR->scopebb());
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p->loopbbs.pop_back();
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// rewrite the scope
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gIR->scope() = IRScope(endbb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void BreakStatement::toIR(IRState* p)
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{
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Logger::println("BreakStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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// don't emit two terminators in a row
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// happens just before DMD generated default statements if the last case terminates
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if (p->scopereturned())
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return;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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if (ident != 0) {
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Logger::println("ident = %s", ident->toChars());
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DtoEnclosingHandlers(enclosinghandler, target->enclosinghandler);
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// get the loop statement the label refers to
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Statement* targetLoopStatement = target->statement;
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ScopeStatement* tmp;
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while(tmp = targetLoopStatement->isScopeStatement())
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targetLoopStatement = tmp->statement;
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// find the right break block and jump there
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bool found = false;
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IRState::LoopScopeVec::reverse_iterator it;
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for(it = p->loopbbs.rbegin(); it != p->loopbbs.rend(); ++it) {
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if(it->s == targetLoopStatement) {
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llvm::BranchInst::Create(it->end, p->scopebb());
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found = true;
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break;
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}
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}
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assert(found);
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}
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else {
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DtoEnclosingHandlers(enclosinghandler, p->loopbbs.back().enclosinghandler);
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llvm::BranchInst::Create(p->loopbbs.back().end, p->scopebb());
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}
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// the break terminated this basicblock, start a new one
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llvm::BasicBlock* oldend = gIR->scopeend();
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llvm::BasicBlock* bb = llvm::BasicBlock::Create("afterbreak", p->topfunc(), oldend);
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p->scope() = IRScope(bb,oldend);
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}
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//////////////////////////////////////////////////////////////////////////////
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void ContinueStatement::toIR(IRState* p)
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{
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Logger::println("ContinueStatement::toIR(): %s", loc.toChars());
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LOG_SCOPE;
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if (global.params.symdebug)
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DtoDwarfStopPoint(loc.linnum);
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if (ident != 0) {
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Logger::println("ident = %s", ident->toChars());
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DtoEnclosingHandlers(enclosinghandler, target->enclosinghandler);
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// get the loop statement the label refers to
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Statement* targetLoopStatement = target->statement;
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ScopeStatement* tmp;
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while(tmp = targetLoopStatement->isScopeStatement())
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targetLoopStatement = tmp->statement;
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// find the right continue block and jump there
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bool found = false;
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IRState::LoopScopeVec::reverse_iterator it;
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for(it = gIR->loopbbs.rbegin(); it != gIR->loopbbs.rend(); ++it) {
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if(it->s == targetLoopStatement) {
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llvm::BranchInst::Create(it->begin, gIR->scopebb());
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found = true;
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|
break;
|
|
}
|
|
}
|
|
assert(found);
|
|
}
|
|
else {
|
|
// can't 'continue' within switch, so omit them
|
|
IRState::LoopScopeVec::reverse_iterator it;
|
|
for(it = gIR->loopbbs.rbegin(); it != gIR->loopbbs.rend(); ++it) {
|
|
if(!it->isSwitch) {
|
|
break;
|
|
}
|
|
}
|
|
DtoEnclosingHandlers(enclosinghandler, it->enclosinghandler);
|
|
llvm::BranchInst::Create(it->begin, gIR->scopebb());
|
|
}
|
|
|
|
// the continue terminated this basicblock, start a new one
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* bb = llvm::BasicBlock::Create("aftercontinue", p->topfunc(), oldend);
|
|
p->scope() = IRScope(bb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void OnScopeStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("OnScopeStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
assert(statement);
|
|
//statement->toIR(p); // this seems to be redundant
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TryFinallyStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("TryFinallyStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// if there's no finalbody or no body, things are simple
|
|
if (!finalbody) {
|
|
if (body)
|
|
body->toIR(p);
|
|
return;
|
|
}
|
|
if (!body) {
|
|
finalbody->toIR(p);
|
|
return;
|
|
}
|
|
|
|
// create basic blocks
|
|
llvm::BasicBlock* oldend = p->scopeend();
|
|
|
|
llvm::BasicBlock* trybb = llvm::BasicBlock::Create("try", p->topfunc(), oldend);
|
|
llvm::BasicBlock* finallybb = llvm::BasicBlock::Create("finally", p->topfunc(), oldend);
|
|
// the landing pad for statements in the try block
|
|
llvm::BasicBlock* landingpadbb = llvm::BasicBlock::Create("landingpad", p->topfunc(), oldend);
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endtryfinally", p->topfunc(), oldend);
|
|
|
|
// pass the previous BB into this
|
|
assert(!gIR->scopereturned());
|
|
llvm::BranchInst::Create(trybb, p->scopebb());
|
|
|
|
//
|
|
// set up the landing pad
|
|
//
|
|
p->scope() = IRScope(landingpadbb, endbb);
|
|
|
|
assert(finalbody);
|
|
gIR->func()->landingPad.addFinally(finalbody);
|
|
gIR->func()->landingPad.push(landingpadbb);
|
|
|
|
//
|
|
// do the try block
|
|
//
|
|
p->scope() = IRScope(trybb,finallybb);
|
|
|
|
assert(body);
|
|
body->toIR(p);
|
|
|
|
// terminate try BB
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(finallybb, p->scopebb());
|
|
|
|
gIR->func()->landingPad.pop();
|
|
|
|
//
|
|
// do finally block
|
|
//
|
|
p->scope() = IRScope(finallybb,landingpadbb);
|
|
finalbody->toIR(p);
|
|
|
|
// terminate finally
|
|
//TODO: isn't it an error to have a 'returned' finally block?
|
|
if (!gIR->scopereturned()) {
|
|
llvm::BranchInst::Create(endbb, p->scopebb());
|
|
}
|
|
|
|
// rewrite the scope
|
|
p->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TryCatchStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("TryCatchStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// create basic blocks
|
|
llvm::BasicBlock* oldend = p->scopeend();
|
|
|
|
llvm::BasicBlock* trybb = llvm::BasicBlock::Create("try", p->topfunc(), oldend);
|
|
// the landing pad will be responsible for branching to the correct catch block
|
|
llvm::BasicBlock* landingpadbb = llvm::BasicBlock::Create("landingpad", p->topfunc(), oldend);
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("endtrycatch", p->topfunc(), oldend);
|
|
|
|
// pass the previous BB into this
|
|
assert(!gIR->scopereturned());
|
|
llvm::BranchInst::Create(trybb, p->scopebb());
|
|
|
|
//
|
|
// do catches and the landing pad
|
|
//
|
|
assert(catches);
|
|
gIR->scope() = IRScope(landingpadbb, endbb);
|
|
|
|
for (int i = 0; i < catches->dim; i++)
|
|
{
|
|
Catch *c = (Catch *)catches->data[i];
|
|
gIR->func()->landingPad.addCatch(c, endbb);
|
|
}
|
|
|
|
gIR->func()->landingPad.push(landingpadbb);
|
|
|
|
//
|
|
// do the try block
|
|
//
|
|
p->scope() = IRScope(trybb,landingpadbb);
|
|
|
|
assert(body);
|
|
body->toIR(p);
|
|
|
|
if (!gIR->scopereturned())
|
|
llvm::BranchInst::Create(endbb, p->scopebb());
|
|
|
|
gIR->func()->landingPad.pop();
|
|
|
|
// rewrite the scope
|
|
p->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void ThrowStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("ThrowStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
assert(exp);
|
|
DValue* e = exp->toElem(p);
|
|
|
|
if (global.params.symdebug) DtoDwarfFuncEnd(gIR->func()->decl);
|
|
|
|
llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_throw_exception");
|
|
//Logger::cout() << "calling: " << *fn << '\n';
|
|
LLValue* arg = DtoBitCast(e->getRVal(), fn->getFunctionType()->getParamType(0));
|
|
//Logger::cout() << "arg: " << *arg << '\n';
|
|
gIR->CreateCallOrInvoke(fn, arg);
|
|
gIR->ir->CreateUnreachable();
|
|
|
|
// need a block after the throw for now
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* bb = llvm::BasicBlock::Create("afterthrow", p->topfunc(), oldend);
|
|
p->scope() = IRScope(bb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
// used to build the sorted list of cases
|
|
struct Case : Object
|
|
{
|
|
StringExp* str;
|
|
size_t index;
|
|
|
|
Case(StringExp* s, size_t i) {
|
|
str = s;
|
|
index = i;
|
|
}
|
|
|
|
int compare(Object *obj) {
|
|
Case* c2 = (Case*)obj;
|
|
return str->compare(c2->str);
|
|
}
|
|
};
|
|
|
|
static LLValue* call_string_switch_runtime(llvm::Value* table, Expression* e)
|
|
{
|
|
Type* dt = e->type->toBasetype();
|
|
Type* dtnext = dt->nextOf()->toBasetype();
|
|
TY ty = dtnext->ty;
|
|
const char* fname;
|
|
if (ty == Tchar) {
|
|
fname = "_d_switch_string";
|
|
}
|
|
else if (ty == Twchar) {
|
|
fname = "_d_switch_ustring";
|
|
}
|
|
else if (ty == Tdchar) {
|
|
fname = "_d_switch_dstring";
|
|
}
|
|
else {
|
|
assert(0 && "not char/wchar/dchar");
|
|
}
|
|
|
|
llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, fname);
|
|
|
|
if (Logger::enabled())
|
|
{
|
|
Logger::cout() << *table->getType() << '\n';
|
|
Logger::cout() << *fn->getFunctionType()->getParamType(0) << '\n';
|
|
}
|
|
assert(table->getType() == fn->getFunctionType()->getParamType(0));
|
|
|
|
DValue* val = e->toElem(gIR);
|
|
LLValue* llval = val->getRVal();
|
|
assert(llval->getType() == fn->getFunctionType()->getParamType(1));
|
|
|
|
LLCallSite call = gIR->CreateCallOrInvoke2(fn, table, llval, "tmp");
|
|
|
|
return call.getInstruction();
|
|
}
|
|
|
|
void SwitchStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("SwitchStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
|
|
// clear data from previous passes... :/
|
|
for (int i=0; i<cases->dim; ++i)
|
|
{
|
|
CaseStatement* cs = (CaseStatement*)cases->data[i];
|
|
cs->bodyBB = NULL;
|
|
cs->llvmIdx = NULL;
|
|
}
|
|
|
|
// string switch?
|
|
llvm::Value* switchTable = 0;
|
|
Array caseArray;
|
|
if (!condition->type->isintegral())
|
|
{
|
|
Logger::println("is string switch");
|
|
// build array of the stringexpS
|
|
caseArray.reserve(cases->dim);
|
|
for (int i=0; i<cases->dim; ++i)
|
|
{
|
|
CaseStatement* cs = (CaseStatement*)cases->data[i];
|
|
|
|
assert(cs->exp->op == TOKstring);
|
|
caseArray.push(new Case((StringExp*)cs->exp, i));
|
|
}
|
|
// first sort it
|
|
caseArray.sort();
|
|
// iterate and add indices to cases
|
|
std::vector<LLConstant*> inits(caseArray.dim);
|
|
for (size_t i=0; i<caseArray.dim; ++i)
|
|
{
|
|
Case* c = (Case*)caseArray.data[i];
|
|
CaseStatement* cs = (CaseStatement*)cases->data[c->index];
|
|
cs->llvmIdx = DtoConstUint(i);
|
|
inits[i] = c->str->toConstElem(p);
|
|
}
|
|
// build static array for ptr or final array
|
|
const LLType* elemTy = DtoType(condition->type);
|
|
const llvm::ArrayType* arrTy = llvm::ArrayType::get(elemTy, inits.size());
|
|
LLConstant* arrInit = llvm::ConstantArray::get(arrTy, inits);
|
|
llvm::GlobalVariable* arr = new llvm::GlobalVariable(arrTy, true, llvm::GlobalValue::InternalLinkage, arrInit, ".string_switch_table_data", gIR->module);
|
|
|
|
const LLType* elemPtrTy = getPtrToType(elemTy);
|
|
LLConstant* arrPtr = llvm::ConstantExpr::getBitCast(arr, elemPtrTy);
|
|
|
|
// build the static table
|
|
std::vector<const LLType*> types;
|
|
types.push_back(DtoSize_t());
|
|
types.push_back(elemPtrTy);
|
|
const llvm::StructType* sTy = llvm::StructType::get(types);
|
|
std::vector<LLConstant*> sinits;
|
|
sinits.push_back(DtoConstSize_t(inits.size()));
|
|
sinits.push_back(arrPtr);
|
|
switchTable = llvm::ConstantStruct::get(sTy, sinits);
|
|
}
|
|
|
|
// body block
|
|
llvm::BasicBlock* bodybb = llvm::BasicBlock::Create("switchbody", p->topfunc(), oldend);
|
|
|
|
// default
|
|
llvm::BasicBlock* defbb = 0;
|
|
if (sdefault) {
|
|
Logger::println("has default");
|
|
defbb = llvm::BasicBlock::Create("default", p->topfunc(), oldend);
|
|
sdefault->bodyBB = defbb;
|
|
}
|
|
|
|
// end (break point)
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("switchend", p->topfunc(), oldend);
|
|
|
|
// condition var
|
|
LLValue* condVal;
|
|
// integral switch
|
|
if (condition->type->isintegral()) {
|
|
DValue* cond = condition->toElem(p);
|
|
condVal = cond->getRVal();
|
|
}
|
|
// string switch
|
|
else {
|
|
condVal = call_string_switch_runtime(switchTable, condition);
|
|
}
|
|
llvm::SwitchInst* si = llvm::SwitchInst::Create(condVal, defbb ? defbb : endbb, cases->dim, p->scopebb());
|
|
|
|
// do switch body
|
|
assert(body);
|
|
|
|
p->scope() = IRScope(bodybb, endbb);
|
|
p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,p->scopebb(),endbb,true));
|
|
body->toIR(p);
|
|
p->loopbbs.pop_back();
|
|
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(endbb, p->scopebb());
|
|
|
|
// add the cases
|
|
for (int i=0; i<cases->dim; ++i)
|
|
{
|
|
CaseStatement* cs = (CaseStatement*)cases->data[i];
|
|
si->addCase(cs->llvmIdx, cs->bodyBB);
|
|
}
|
|
|
|
gIR->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
void CaseStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("CaseStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
llvm::BasicBlock* nbb = llvm::BasicBlock::Create("case", p->topfunc(), p->scopeend());
|
|
|
|
if (bodyBB && !bodyBB->getTerminator())
|
|
{
|
|
llvm::BranchInst::Create(nbb, bodyBB);
|
|
}
|
|
bodyBB = nbb;
|
|
|
|
if (llvmIdx == NULL) {
|
|
LLConstant* c = exp->toConstElem(p);
|
|
llvmIdx = isaConstantInt(c);
|
|
}
|
|
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(bodyBB, p->scopebb());
|
|
|
|
p->scope() = IRScope(bodyBB, p->scopeend());
|
|
|
|
assert(statement);
|
|
statement->toIR(p);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
void DefaultStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("DefaultStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
assert(bodyBB);
|
|
|
|
llvm::BasicBlock* nbb = llvm::BasicBlock::Create("default", p->topfunc(), p->scopeend());
|
|
|
|
if (!bodyBB->getTerminator())
|
|
{
|
|
llvm::BranchInst::Create(nbb, bodyBB);
|
|
}
|
|
bodyBB = nbb;
|
|
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(bodyBB, p->scopebb());
|
|
|
|
p->scope() = IRScope(bodyBB, p->scopeend());
|
|
|
|
assert(statement);
|
|
statement->toIR(p);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void UnrolledLoopStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("UnrolledLoopStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
// if no statements, there's nothing to do
|
|
if (!statements || !statements->dim)
|
|
return;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// DMD doesn't fold stuff like continue/break, and since this isn't really a loop
|
|
// we have to keep track of each statement and jump to the next/end on continue/break
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
|
|
// create a block for each statement
|
|
size_t nstmt = statements->dim;
|
|
LLSmallVector<llvm::BasicBlock*, 4> blocks(nstmt, NULL);
|
|
|
|
for (size_t i=0; i<nstmt; i++)
|
|
{
|
|
blocks[i] = llvm::BasicBlock::Create("unrolledstmt", p->topfunc(), oldend);
|
|
}
|
|
|
|
// create end block
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("unrolledend", p->topfunc(), oldend);
|
|
|
|
// enter first stmt
|
|
if (!p->scopereturned())
|
|
p->ir->CreateBr(blocks[0]);
|
|
|
|
// do statements
|
|
Statement** stmts = (Statement**)statements->data;
|
|
|
|
for (int i=0; i<nstmt; i++)
|
|
{
|
|
Statement* s = stmts[i];
|
|
|
|
// get blocks
|
|
llvm::BasicBlock* thisbb = blocks[i];
|
|
llvm::BasicBlock* nextbb = (i+1 == nstmt) ? endbb : blocks[i+1];
|
|
|
|
// update scope
|
|
p->scope() = IRScope(thisbb,nextbb);
|
|
|
|
// push loop scope
|
|
// continue goes to next statement, break goes to end
|
|
p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,nextbb,endbb));
|
|
|
|
// do statement
|
|
s->toIR(p);
|
|
|
|
// pop loop scope
|
|
p->loopbbs.pop_back();
|
|
|
|
// next stmt
|
|
if (!p->scopereturned())
|
|
p->ir->CreateBr(nextbb);
|
|
}
|
|
|
|
// finish scope
|
|
if (!p->scopereturned())
|
|
p->ir->CreateBr(endbb);
|
|
p->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void ForeachStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("ForeachStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
//assert(arguments->dim == 1);
|
|
assert(value != 0);
|
|
assert(aggr != 0);
|
|
assert(func != 0);
|
|
|
|
//Argument* arg = (Argument*)arguments->data[0];
|
|
//Logger::println("Argument is %s", arg->toChars());
|
|
|
|
Logger::println("aggr = %s", aggr->toChars());
|
|
|
|
// key
|
|
const LLType* keytype = key ? DtoType(key->type) : DtoSize_t();
|
|
LLValue* keyvar;
|
|
if (key)
|
|
keyvar = DtoRawVarDeclaration(key);
|
|
else
|
|
keyvar = DtoAlloca(keytype, "foreachkey");
|
|
LLValue* zerokey = llvm::ConstantInt::get(keytype,0,false);
|
|
|
|
// value
|
|
Logger::println("value = %s", value->toPrettyChars());
|
|
DtoRawVarDeclaration(value);
|
|
const LLType* valtype = DtoType(value->type);
|
|
LLValue* valvar = NULL;
|
|
if (!value->isRef() && !value->isOut())
|
|
valvar = value->ir.irLocal->value;
|
|
|
|
// what to iterate
|
|
DValue* aggrval = aggr->toElem(p);
|
|
Type* aggrtype = aggr->type->toBasetype();
|
|
|
|
// get length and pointer
|
|
LLValue* niters = DtoArrayLen(aggrval);
|
|
LLValue* val = DtoArrayPtr(aggrval);
|
|
|
|
if (niters->getType() != keytype)
|
|
{
|
|
size_t sz1 = getTypeBitSize(niters->getType());
|
|
size_t sz2 = getTypeBitSize(keytype);
|
|
if (sz1 < sz2)
|
|
niters = gIR->ir->CreateZExt(niters, keytype, "foreachtrunckey");
|
|
else if (sz1 > sz2)
|
|
niters = gIR->ir->CreateTrunc(niters, keytype, "foreachtrunckey");
|
|
else
|
|
niters = gIR->ir->CreateBitCast(niters, keytype, "foreachtrunckey");
|
|
}
|
|
|
|
LLConstant* delta = 0;
|
|
if (op == TOKforeach) {
|
|
new llvm::StoreInst(zerokey, keyvar, p->scopebb());
|
|
}
|
|
else {
|
|
new llvm::StoreInst(niters, keyvar, p->scopebb());
|
|
}
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* condbb = llvm::BasicBlock::Create("foreachcond", p->topfunc(), oldend);
|
|
llvm::BasicBlock* bodybb = llvm::BasicBlock::Create("foreachbody", p->topfunc(), oldend);
|
|
llvm::BasicBlock* nextbb = llvm::BasicBlock::Create("foreachnext", p->topfunc(), oldend);
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("foreachend", p->topfunc(), oldend);
|
|
|
|
llvm::BranchInst::Create(condbb, p->scopebb());
|
|
|
|
// condition
|
|
p->scope() = IRScope(condbb,bodybb);
|
|
|
|
LLValue* done = 0;
|
|
LLValue* load = DtoLoad(keyvar);
|
|
if (op == TOKforeach) {
|
|
done = p->ir->CreateICmpULT(load, niters, "tmp");
|
|
}
|
|
else if (op == TOKforeach_reverse) {
|
|
done = p->ir->CreateICmpUGT(load, zerokey, "tmp");
|
|
load = p->ir->CreateSub(load, llvm::ConstantInt::get(keytype, 1, false), "tmp");
|
|
DtoStore(load, keyvar);
|
|
}
|
|
llvm::BranchInst::Create(bodybb, endbb, done, p->scopebb());
|
|
|
|
// init body
|
|
p->scope() = IRScope(bodybb,nextbb);
|
|
|
|
// get value for this iteration
|
|
LLConstant* zero = llvm::ConstantInt::get(keytype,0,false);
|
|
LLValue* loadedKey = p->ir->CreateLoad(keyvar,"tmp");
|
|
value->ir.irLocal->value = DtoGEP1(val,loadedKey);
|
|
|
|
if (!value->isRef() && !value->isOut()) {
|
|
DVarValue dst(value->type, valvar);
|
|
DVarValue src(value->type, value->ir.irLocal->value);
|
|
DtoAssign(loc, &dst, &src);
|
|
value->ir.irLocal->value = valvar;
|
|
}
|
|
|
|
// emit body
|
|
p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,nextbb,endbb));
|
|
if(body)
|
|
body->toIR(p);
|
|
p->loopbbs.pop_back();
|
|
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(nextbb, p->scopebb());
|
|
|
|
// next
|
|
p->scope() = IRScope(nextbb,endbb);
|
|
if (op == TOKforeach) {
|
|
LLValue* load = DtoLoad(keyvar);
|
|
load = p->ir->CreateAdd(load, llvm::ConstantInt::get(keytype, 1, false), "tmp");
|
|
DtoStore(load, keyvar);
|
|
}
|
|
llvm::BranchInst::Create(condbb, p->scopebb());
|
|
|
|
// end
|
|
p->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#if DMDV2
|
|
|
|
void ForeachRangeStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("ForeachRangeStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// evaluate lwr/upr
|
|
assert(lwr->type->isintegral());
|
|
LLValue* lower = lwr->toElem(p)->getRVal();
|
|
assert(upr->type->isintegral());
|
|
LLValue* upper = upr->toElem(p)->getRVal();
|
|
|
|
// handle key
|
|
assert(key->type->isintegral());
|
|
LLValue* keyval = DtoRawVarDeclaration(key);
|
|
|
|
// store initial value in key
|
|
if (op == TOKforeach)
|
|
DtoStore(lower, keyval);
|
|
else
|
|
DtoStore(upper, keyval);
|
|
|
|
// set up the block we'll need
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* condbb = llvm::BasicBlock::Create("foreachrange_cond", p->topfunc(), oldend);
|
|
llvm::BasicBlock* bodybb = llvm::BasicBlock::Create("foreachrange_body", p->topfunc(), oldend);
|
|
llvm::BasicBlock* nextbb = llvm::BasicBlock::Create("foreachrange_next", p->topfunc(), oldend);
|
|
llvm::BasicBlock* endbb = llvm::BasicBlock::Create("foreachrange_end", p->topfunc(), oldend);
|
|
|
|
// jump to condition
|
|
llvm::BranchInst::Create(condbb, p->scopebb());
|
|
|
|
// CONDITION
|
|
p->scope() = IRScope(condbb,bodybb);
|
|
|
|
// first we test that lwr < upr
|
|
lower = DtoLoad(keyval);
|
|
assert(lower->getType() == upper->getType());
|
|
llvm::ICmpInst::Predicate cmpop;
|
|
if (key->type->isunsigned())
|
|
{
|
|
cmpop = (op == TOKforeach)
|
|
? llvm::ICmpInst::ICMP_ULT
|
|
: llvm::ICmpInst::ICMP_UGT;
|
|
}
|
|
else
|
|
{
|
|
cmpop = (op == TOKforeach)
|
|
? llvm::ICmpInst::ICMP_SLT
|
|
: llvm::ICmpInst::ICMP_SGT;
|
|
}
|
|
LLValue* cond = p->ir->CreateICmp(cmpop, lower, upper);
|
|
|
|
// jump to the body if range is ok, to the end if not
|
|
llvm::BranchInst::Create(bodybb, endbb, cond, p->scopebb());
|
|
|
|
// BODY
|
|
p->scope() = IRScope(bodybb,nextbb);
|
|
|
|
// reverse foreach decrements here
|
|
if (op == TOKforeach_reverse)
|
|
{
|
|
LLValue* v = DtoLoad(keyval);
|
|
LLValue* one = LLConstantInt::get(v->getType(), 1, false);
|
|
v = p->ir->CreateSub(v, one);
|
|
DtoStore(v, keyval);
|
|
}
|
|
|
|
// emit body
|
|
p->loopbbs.push_back(IRLoopScope(this,enclosinghandler,nextbb,endbb));
|
|
if (body)
|
|
body->toIR(p);
|
|
p->loopbbs.pop_back();
|
|
|
|
// jump to next iteration
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(nextbb, p->scopebb());
|
|
|
|
// NEXT
|
|
p->scope() = IRScope(nextbb,endbb);
|
|
|
|
// forward foreach increments here
|
|
if (op == TOKforeach)
|
|
{
|
|
LLValue* v = DtoLoad(keyval);
|
|
LLValue* one = LLConstantInt::get(v->getType(), 1, false);
|
|
v = p->ir->CreateAdd(v, one);
|
|
DtoStore(v, keyval);
|
|
}
|
|
|
|
// jump to condition
|
|
llvm::BranchInst::Create(condbb, p->scopebb());
|
|
|
|
// END
|
|
p->scope() = IRScope(endbb,oldend);
|
|
}
|
|
|
|
#endif // D2
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void LabelStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("LabelStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
// if it's an inline asm label, we don't create a basicblock, just emit it in the asm
|
|
if (p->asmBlock)
|
|
{
|
|
IRAsmStmt* a = new IRAsmStmt;
|
|
a->code += p->func()->decl->mangle();
|
|
a->code += "_";
|
|
a->code += ident->toChars();
|
|
a->code += ":";
|
|
p->asmBlock->s.push_back(a);
|
|
p->asmBlock->internalLabels.push_back(ident);
|
|
|
|
// disable inlining
|
|
gIR->func()->setNeverInline();
|
|
}
|
|
else
|
|
{
|
|
std::string labelname = p->func()->getScopedLabelName(ident->toChars());
|
|
llvm::BasicBlock*& labelBB = p->func()->labelToBB[labelname];
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
if (labelBB != NULL) {
|
|
labelBB->moveBefore(oldend);
|
|
} else {
|
|
labelBB = llvm::BasicBlock::Create("label_" + labelname, p->topfunc(), oldend);
|
|
}
|
|
|
|
if (!p->scopereturned())
|
|
llvm::BranchInst::Create(labelBB, p->scopebb());
|
|
|
|
p->scope() = IRScope(labelBB,oldend);
|
|
}
|
|
|
|
if (statement)
|
|
statement->toIR(p);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void GotoStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("GotoStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* bb = llvm::BasicBlock::Create("aftergoto", p->topfunc(), oldend);
|
|
|
|
DtoGoto(&loc, label->ident, enclosinghandler, tf);
|
|
|
|
p->scope() = IRScope(bb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void GotoDefaultStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("GotoDefaultStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* bb = llvm::BasicBlock::Create("aftergotodefault", p->topfunc(), oldend);
|
|
|
|
assert(!p->scopereturned());
|
|
assert(sw->sdefault->bodyBB);
|
|
|
|
DtoEnclosingHandlers(enclosinghandler, sw->enclosinghandler);
|
|
|
|
llvm::BranchInst::Create(sw->sdefault->bodyBB, p->scopebb());
|
|
p->scope() = IRScope(bb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void GotoCaseStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("GotoCaseStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
llvm::BasicBlock* oldend = gIR->scopeend();
|
|
llvm::BasicBlock* bb = llvm::BasicBlock::Create("aftergotocase", p->topfunc(), oldend);
|
|
|
|
assert(!p->scopereturned());
|
|
if (!cs->bodyBB)
|
|
{
|
|
cs->bodyBB = llvm::BasicBlock::Create("goto_case", p->topfunc(), p->scopeend());
|
|
}
|
|
|
|
DtoEnclosingHandlers(enclosinghandler, sw->enclosinghandler);
|
|
|
|
llvm::BranchInst::Create(cs->bodyBB, p->scopebb());
|
|
p->scope() = IRScope(bb,oldend);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void WithStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("WithStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
assert(exp);
|
|
assert(body);
|
|
|
|
// with(..) can either be used with expressions or with symbols
|
|
// wthis == null indicates the symbol form
|
|
if (wthis) {
|
|
DValue* e = exp->toElem(p);
|
|
LLValue* mem = DtoRawVarDeclaration(wthis);
|
|
DtoStore(e->getRVal(), mem);
|
|
}
|
|
|
|
body->toIR(p);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static LLConstant* generate_unique_critical_section()
|
|
{
|
|
const LLType* Mty = DtoMutexType();
|
|
return new llvm::GlobalVariable(Mty, false, llvm::GlobalValue::InternalLinkage, LLConstant::getNullValue(Mty), ".uniqueCS", gIR->module);
|
|
}
|
|
|
|
void SynchronizedStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("SynchronizedStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// enter lock
|
|
if (exp)
|
|
{
|
|
llsync = exp->toElem(p)->getRVal();
|
|
DtoEnterMonitor(llsync);
|
|
}
|
|
else
|
|
{
|
|
llsync = generate_unique_critical_section();
|
|
DtoEnterCritical(llsync);
|
|
}
|
|
|
|
// emit body
|
|
body->toIR(p);
|
|
|
|
// exit lock
|
|
// no point in a unreachable unlock, terminating statements must insert this themselves.
|
|
if (p->scopereturned())
|
|
return;
|
|
else if (exp)
|
|
DtoLeaveMonitor(llsync);
|
|
else
|
|
DtoLeaveCritical(llsync);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void VolatileStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("VolatileStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
if (global.params.symdebug)
|
|
DtoDwarfStopPoint(loc.linnum);
|
|
|
|
// mark in-volatile
|
|
// FIXME
|
|
|
|
// has statement
|
|
if (statement != NULL)
|
|
{
|
|
// load-store
|
|
DtoMemoryBarrier(false, true, false, false);
|
|
|
|
// do statement
|
|
statement->toIR(p);
|
|
|
|
// no point in a unreachable barrier, terminating statements must insert this themselves.
|
|
if (statement->blockExit() & BEfallthru)
|
|
{
|
|
// store-load
|
|
DtoMemoryBarrier(false, false, true, false);
|
|
}
|
|
}
|
|
// barrier only
|
|
else
|
|
{
|
|
// load-store & store-load
|
|
DtoMemoryBarrier(false, true, true, false);
|
|
}
|
|
|
|
// restore volatile state
|
|
// FIXME
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
void SwitchErrorStatement::toIR(IRState* p)
|
|
{
|
|
Logger::println("SwitchErrorStatement::toIR(): %s", loc.toChars());
|
|
LOG_SCOPE;
|
|
|
|
llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_switch_error");
|
|
|
|
std::vector<LLValue*> args;
|
|
|
|
// file param
|
|
args.push_back(DtoLoad(gIR->dmodule->ir.irModule->fileName));
|
|
|
|
// line param
|
|
LLConstant* c = DtoConstUint(loc.linnum);
|
|
args.push_back(c);
|
|
|
|
// call
|
|
gIR->CreateCallOrInvoke(fn, args.begin(), args.end());
|
|
|
|
gIR->ir->CreateUnreachable();
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define STUBST(x) void x::toIR(IRState * p) {error("Statement type "#x" not implemented: %s", toChars());fatal();}
|
|
//STUBST(BreakStatement);
|
|
//STUBST(ForStatement);
|
|
//STUBST(WithStatement);
|
|
//STUBST(SynchronizedStatement);
|
|
//STUBST(ReturnStatement);
|
|
//STUBST(ContinueStatement);
|
|
//STUBST(DefaultStatement);
|
|
//STUBST(CaseStatement);
|
|
//STUBST(SwitchStatement);
|
|
//STUBST(SwitchErrorStatement);
|
|
STUBST(Statement);
|
|
//STUBST(IfStatement);
|
|
//STUBST(ForeachStatement);
|
|
//STUBST(DoStatement);
|
|
//STUBST(WhileStatement);
|
|
//STUBST(ExpStatement);
|
|
//STUBST(CompoundStatement);
|
|
//STUBST(ScopeStatement);
|
|
//STUBST(AsmStatement);
|
|
//STUBST(TryCatchStatement);
|
|
//STUBST(TryFinallyStatement);
|
|
//STUBST(VolatileStatement);
|
|
//STUBST(LabelStatement);
|
|
//STUBST(ThrowStatement);
|
|
//STUBST(GotoCaseStatement);
|
|
//STUBST(GotoDefaultStatement);
|
|
//STUBST(GotoStatement);
|
|
//STUBST(UnrolledLoopStatement);
|
|
//STUBST(OnScopeStatement);
|
|
|
|
#if DMDV2
|
|
STUBST(PragmaStatement);
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
AsmBlockStatement* Statement::endsWithAsm()
|
|
{
|
|
// does not end with inline asm
|
|
return NULL;
|
|
}
|
|
|
|
AsmBlockStatement* CompoundStatement::endsWithAsm()
|
|
{
|
|
// make the last inner statement decide
|
|
if (statements && statements->dim)
|
|
{
|
|
unsigned last = statements->dim - 1;
|
|
Statement* s = (Statement*)statements->data[last];
|
|
if (s) return s->endsWithAsm();
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
AsmBlockStatement* AsmBlockStatement::endsWithAsm()
|
|
{
|
|
// yes this is inline asm
|
|
return this;
|
|
}
|