Recommit r3494 after fixing stupid mistake where the deferred code stub didn't know it was reversed.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
parent
9b0a967cae
commit
64e443768e
@ -1731,9 +1731,42 @@ void CodeGenerator::ConstantSmiBinaryOperation(Token::Value op,
|
||||
|
||||
case Token::SHL:
|
||||
if (reversed) {
|
||||
Result constant_operand(value);
|
||||
LikelySmiBinaryOperation(op, &constant_operand, operand,
|
||||
overwrite_mode);
|
||||
Result right;
|
||||
Result right_copy_in_ecx;
|
||||
|
||||
// Make sure to get a copy of the right operand into ecx. This
|
||||
// allows us to modify it without having to restore it in the
|
||||
// deferred code.
|
||||
operand->ToRegister();
|
||||
if (operand->reg().is(ecx)) {
|
||||
right = allocator()->Allocate();
|
||||
__ mov(right.reg(), ecx);
|
||||
frame_->Spill(ecx);
|
||||
right_copy_in_ecx = *operand;
|
||||
} else {
|
||||
right_copy_in_ecx = allocator()->Allocate(ecx);
|
||||
__ mov(ecx, operand->reg());
|
||||
right = *operand;
|
||||
}
|
||||
operand->Unuse();
|
||||
|
||||
Result answer = allocator()->Allocate();
|
||||
DeferredInlineSmiOperationReversed* deferred =
|
||||
new DeferredInlineSmiOperationReversed(op,
|
||||
answer.reg(),
|
||||
smi_value,
|
||||
right.reg(),
|
||||
overwrite_mode);
|
||||
__ mov(answer.reg(), Immediate(int_value));
|
||||
__ sar(ecx, kSmiTagSize);
|
||||
deferred->Branch(carry);
|
||||
__ shl_cl(answer.reg());
|
||||
__ cmp(answer.reg(), 0xc0000000);
|
||||
deferred->Branch(sign);
|
||||
__ SmiTag(answer.reg());
|
||||
|
||||
deferred->BindExit();
|
||||
frame_->Push(&answer);
|
||||
} else {
|
||||
// Only the least significant 5 bits of the shift value are used.
|
||||
// In the slow case, this masking is done inside the runtime call.
|
||||
|
Loading…
Reference in New Issue
Block a user