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nv50/ir/ssa: Take into account function inputs and outputs.

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This commit is contained in:
Francisco Jerez 2011-11-27 13:06:10 +01:00 • committed by Christoph Bumiller
parent 4a44f94caf
commit 4ece0dbd2f
1 changed files with 30 additions and 2 deletions
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32
src/gallium/drivers/nv50/codegen/nv50_ir_ssa.cpp
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@ -352,7 +352,7 @@ Function::convertToSSA()
// gather blocks with assignments to lval in workList
for (Value::DefIterator d = lval->defs.begin();
d != lval->defs.end(); ++d) {
bb = (*d)->getInsn()->bb;
bb = ((*d)->getInsn() ? (*d)->getInsn()->bb : NULL);
if (!bb)
continue; // instruction likely been removed but not XXX deleted
@ -436,10 +436,25 @@ bool RenamePass::run()
void RenamePass::search(BasicBlock *bb)
{
LValue *lval;
LValue *lval, *ssa;
int d, s;
const Target *targ = prog->getTarget();
if (bb == BasicBlock::get(func->cfg.getRoot())) {
for (std::deque<ValueDef>::iterator it = func->ins.begin();
it != func->ins.end(); ++it) {
lval = it->get()->asLValue();
assert(lval);
ssa = new_LValue(func, targ->nativeFile(lval->reg.file));
ssa->reg.size = lval->reg.size;
ssa->reg.data.id = lval->reg.data.id;
it->setSSA(ssa);
stack[lval->id].push(ssa);
}
}
for (Instruction *stmt = bb->getFirst(); stmt; stmt = stmt->next) {
if (stmt->op != OP_PHI) {
for (s = 0; stmt->srcExists(s); ++s) {
@ -487,6 +502,19 @@ void RenamePass::search(BasicBlock *bb)
for (Graph::EdgeIterator ei = bb->dom.outgoing(); !ei.end(); ei.next())
search(BasicBlock::get(ei.getNode()));
if (bb == BasicBlock::get(func->cfgExit)) {
for (std::deque<ValueRef>::iterator it = func->outs.begin();
it != func->outs.end(); ++it) {
lval = it->get()->asLValue();
if (!lval)
continue;
lval = getStackTop(lval);
if (!lval)
lval = static_cast<LValue *>(undef->getDef(0));
it->set(lval);
}
}
for (Instruction *stmt = bb->getFirst(); stmt; stmt = stmt->next) {
for (d = 0; stmt->defExists(d); ++d)
stack[stmt->def(d).preSSA()->id].pop();