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more register marshalling bugfixes; simple swt apps now run on amd64

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This commit is contained in:
Joel Dice 2008-05-15 17:19:23 -06:00
parent bbd1ee5540
commit 7f72a6469d
2 changed files with 64 additions and 50 deletions
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103
src/compiler.cpp
View File

@ -24,6 +24,7 @@ class Context;
class Value;
class Stack;
class Site;
class RegisterSite;
class Event;
class PushEvent;
class Read;
@ -103,13 +104,12 @@ class LogicalInstruction {
class Register {
public:
Register(int number):
value(0), site(0), mask(0), number(number), size(0), refCount(0),
value(0), site(0), number(number), size(0), refCount(0),
freezeCount(0), reserved(false), pushed(false)
{ }
Value* value;
Site* site;
uint32_t mask;
RegisterSite* site;
int number;
unsigned size;
unsigned refCount;
@ -502,14 +502,14 @@ thaw(Register* r)
Register*
acquire(Context* c, uint32_t mask, Stack* stack, unsigned newSize,
Value* newValue, Site* newSite);
Value* newValue, RegisterSite* newSite);
void
release(Context* c, Register* r);
Register*
validate(Context* c, uint32_t mask, Stack* stack, unsigned size,
Value* value, Site* site, Register* current);
Value* value, RegisterSite* site, Register* current);
class RegisterSite: public Site {
public:
@ -543,27 +543,15 @@ class RegisterSite: public Site {
}
virtual void acquire(Context* c, Stack* stack, unsigned size, Value* v) {
low = ::acquire(c, mask, stack, size, v, this);
if (size > BytesPerWord) {
::freeze(low);
high = ::acquire(c, mask >> 32, stack, size, v, this);
::thaw(low);
mask = (static_cast<uint64_t>(1) << (high->number + 32)) |
(static_cast<uint64_t>(1) << low->number);
} else {
mask = static_cast<uint64_t>(1) << low->number;
}
validate(c, stack, size, v);
}
virtual void release(Context* c) {
assert(c, low);
::release(c, low);
low = 0;
if (high) {
::release(c, high);
high = 0;
}
}
@ -617,27 +605,35 @@ registerSite(Context* c, int low, int high = NoRegister)
assert(c, high == NoRegister
or high < static_cast<int>(c->assembler->registerCount()));
uint64_t mask;
Register* hr;
if (high == NoRegister) {
hr = 0;
mask = static_cast<uint64_t>(1) << low;
} else {
hr = c->registers[high];
mask = (static_cast<uint64_t>(1) << (high + 32))
| (static_cast<uint64_t>(1) << low);
}
return new (c->zone->allocate(sizeof(RegisterSite)))
RegisterSite(mask, c->registers[low], hr);
RegisterSite(~static_cast<uint64_t>(0), c->registers[low], hr);
}
RegisterSite*
freeRegister(Context* c, uint64_t mask = ~static_cast<uint64_t>(0))
freeRegisterSite(Context* c, uint64_t mask = ~static_cast<uint64_t>(0))
{
return new (c->zone->allocate(sizeof(RegisterSite)))
RegisterSite(mask);
}
RegisterSite*
fixedRegisterSite(Context* c, int low, int high = NoRegister)
{
uint64_t mask = static_cast<uint64_t>(1) << low;
if (high != NoRegister) {
mask |= static_cast<uint64_t>(1) << (high + 32);
}
return new (c->zone->allocate(sizeof(RegisterSite)))
RegisterSite(mask);
}
Register*
increment(Context* c, int i)
{
@ -821,7 +817,7 @@ class VirtualSite: public AbstractSite {
if (site) {
return site;
} else {
return freeRegister(c, registerMask);
return freeRegisterSite(c, registerMask);
}
}
@ -852,7 +848,7 @@ targetOrRegister(Context* c, Value* v)
if (s) {
return s;
} else {
return freeRegister(c);
return freeRegisterSite(c);
}
}
@ -1031,6 +1027,9 @@ pickRegister(Context* c, uint32_t mask)
void
swap(Context* c, Register* a, Register* b)
{
assert(c, a != b);
assert(c, a->number != b->number);
Assembler::Register ar(a->number);
Assembler::Register br(b->number);
c->assembler->apply
@ -1047,7 +1046,7 @@ swap(Context* c, Register* a, Register* b)
Register*
replace(Context* c, Stack* stack, Register* r)
{
uint32_t mask = (r->freezeCount? r->mask : ~0);
uint32_t mask = (r->freezeCount? r->site->mask : ~0);
freeze(r);
Register* s = acquire(c, mask, stack, r->size, r->value, r->site);
@ -1060,7 +1059,7 @@ replace(Context* c, Stack* stack, Register* r)
Register*
acquire(Context* c, uint32_t mask, Stack* stack, unsigned newSize,
Value* newValue, Site* newSite)
Value* newValue, RegisterSite* newSite)
{
Register* r = pickRegister(c, mask);
@ -1085,7 +1084,6 @@ acquire(Context* c, uint32_t mask, Stack* stack, unsigned newSize,
}
}
r->mask = mask;
r->size = newSize;
r->value = newValue;
r->site = newSite;
@ -1100,7 +1098,6 @@ release(Context*, Register* r)
fprintf(stderr, "release %d\n", r->number);
}
r->mask = 0;
r->size = 0;
r->value = 0;
r->site = 0;
@ -1108,21 +1105,33 @@ release(Context*, Register* r)
Register*
validate(Context* c, uint32_t mask, Stack* stack, unsigned size,
Value* value, Site* site, Register* current)
Value* value, RegisterSite* site, Register* current)
{
if ((mask & (1 << current->number)) == 0) {
if (current and (mask & (1 << current->number))) {
if (current->reserved or current->value == value) {
return current;
}
if (current->value == 0) {
current->size = size;
current->value = value;
current->site = site;
return current;
}
}
Register* r = acquire(c, mask, stack, size, value, site);
if (current and current != r) {
release(c, current);
Assembler::Register rr(r->number);
Assembler::Register cr(current->number);
c->assembler->apply
(Move, BytesPerWord, RegisterOperand, &cr, RegisterOperand, &rr);
}
return r;
} else {
return current;
}
}
void
@ -1253,7 +1262,7 @@ class CallEvent: public Event {
Site* target;
if (index < c->assembler->argumentRegisterCount()) {
int r = c->assembler->argumentRegister(index);
target = registerSite(c, r);
target = fixedRegisterSite(c, r);
mask &= ~(1 << r);
} else {
target = 0;
@ -1267,7 +1276,7 @@ class CallEvent: public Event {
if (flags & Compiler::Indirect) {
int r = c->assembler->returnLow();
addRead(c, address, BytesPerWord, registerSite(c, r));
addRead(c, address, BytesPerWord, fixedRegisterSite(c, r));
mask &= ~(1 << r);
} else {
addRead(c, address, BytesPerWord, virtualSite
@ -1296,6 +1305,12 @@ class CallEvent: public Event {
apply(c, type, BytesPerWord, address->source);
}
if (traceHandler) {
traceHandler->handleTrace
(new (c->zone->allocate(sizeof(CodePromise)))
CodePromise(c, c->assembler->length()));
}
for (Stack* s = stack; s; s = s->next) {
clearSites(c, s->value);
}
@ -1317,12 +1332,6 @@ class CallEvent: public Event {
c->assembler->returnHigh() : NoRegister));
}
if (traceHandler) {
traceHandler->handleTrace
(new (c->zone->allocate(sizeof(CodePromise)))
CodePromise(c, c->assembler->length()));
}
if (argumentFootprint and ((flags & Compiler::NoReturn) == 0)) {
ignore(c, argumentFootprint);
}
@ -1356,7 +1365,7 @@ class ReturnEvent: public Event {
Event(c), value(value)
{
if (value) {
addRead(c, value, size, registerSite
addRead(c, value, size, fixedRegisterSite
(c, c->assembler->returnLow(),
size > BytesPerWord ?
c->assembler->returnHigh() : NoRegister));
@ -1511,7 +1520,7 @@ maybePreserve(Context* c, Stack* stack, unsigned size, Value* v, Site* s)
if (v->reads->next and v->sites->next == 0) {
assert(c, v->sites == s);
Site* r = targetOrNull(c, v->reads->next);
if (r == 0 or r == s) r = freeRegister(c);
if (r == 0 or r == s) r = freeRegisterSite(c);
addSite(c, stack, size, v, r);
apply(c, Move, size, s, r);
}
@ -1543,7 +1552,7 @@ class CombineEvent: public Event {
removeSite(c, second, second->source);
if (result->reads) {
addSite(c, 0, size, result, second->source);
addSite(c, 0, 0, result, second->source);
}
}
@ -1621,7 +1630,7 @@ class TranslateEvent: public Event {
removeSite(c, value, value->source);
if (result->reads) {
addSite(c, 0, size, result, value->source);
addSite(c, 0, 0, result, value->source);
}
}

7
test/Misc.java
View File

@ -74,6 +74,10 @@ public class Misc {
return 5 + zap();
}
private static int zup() {
return zap() + 5;
}
public static void main(String[] args) {
{ int get_buffer = 2144642881;
int bits_left = 30;
@ -195,7 +199,8 @@ public class Misc {
expect(m.gamma == 44);
}
zip();
expect(zip() == 47);
expect(zup() == 47);
int[] array = new int[0];
Exception exception = null;