static void fixnum_compare(MathOperation op, JITOperations& ops, Inliner& i) {
Value* lint = ops.cast_int(i.recv());
Value* rint = ops.cast_int(i.arg(0));
Value* anded = BinaryOperator::CreateAnd(lint, rint, "fixnums_anded",
ops.current_block());
Value* fix_mask = ConstantInt::get(ops.NativeIntTy, TAG_FIXNUM_MASK);
Value* fix_tag = ConstantInt::get(ops.NativeIntTy, TAG_FIXNUM);
Value* masked = BinaryOperator::CreateAnd(anded, fix_mask, "masked",
ops.current_block());
Value* cmp = ops.create_equal(masked, fix_tag, "is_fixnum");
BasicBlock* push = ops.new_block("push_le");
BasicBlock* send = i.failure();
ops.create_conditional_branch(push, send, cmp);
ops.set_block(push);
Value* performed = 0;
switch(op) {
case cEqual:
performed = ops.b().CreateICmpEQ(lint, rint, "fixnum.eq");
break;
case cLessThan:
performed = ops.b().CreateICmpSLT(lint, rint, "fixnum.lt");
break;
case cLessThanEqual:
performed = ops.b().CreateICmpSLE(lint, rint, "fixnum.le");
break;
case cGreaterThan:
performed = ops.b().CreateICmpSGT(lint, rint, "fixnum.gt");
break;
case cGreaterThanEqual:
performed = ops.b().CreateICmpSGE(lint, rint, "fixnum.ge");
break;
default:
abort();
}
Value* le = ops.b().CreateSelect(
performed,
ops.constant(Qtrue),
ops.constant(Qfalse));
i.use_send_for_failure();
i.exception_safe();
i.set_result(ops.as_obj(le));
}
static void float_compare(MathOperation op, Class* klass,
JITOperations& ops, Inliner& i)
{
i.use_send_for_failure();
Value* self = i.recv();
ops.check_class(self, klass, i.failure());
// Support compare against Floats and Fixnums inline
BasicBlock* do_compare = ops.new_block("float_compare");
BasicBlock* check_fix = ops.new_block("check_fixnum");
Value* arg = i.arg(0);
ops.check_class(arg, klass, check_fix);
Value* farg = ops.b().CreateBitCast(arg, ops.state()->ptr_type("Float"),
"arg_float");
Value* unboxed_rhs = ops.b().CreateLoad(
ops.b().CreateConstGEP2_32(farg, 0, 1, "arg.value_pos"), "farg");
BasicBlock* unboxed_block = ops.current_block();
ops.b().CreateBr(do_compare);
ops.set_block(check_fix);
ops.verify_guard(ops.check_is_fixnum(arg), i.failure());
Value* converted_rhs = ops.b().CreateUIToFP(
ops.fixnum_to_native(arg), unboxed_rhs->getType());
BasicBlock* converted_block = ops.current_block();
ops.b().CreateBr(do_compare);
ops.set_block(do_compare);
do_compare->moveAfter(converted_block);
PHINode* rhs = ops.b().CreatePHI(converted_rhs->getType(), "float_rhs");
rhs->addIncoming(unboxed_rhs, unboxed_block);
rhs->addIncoming(converted_rhs, converted_block);
Value* fself = ops.b().CreateBitCast(self, ops.state()->ptr_type("Float"),
"self_float");
Value* lhs = ops.b().CreateLoad(
ops.b().CreateConstGEP2_32(fself, 0, 1, "self.value_pos"), "fself");
Value* performed = 0;
switch(op) {
case cEqual:
performed = ops.b().CreateFCmpUEQ(lhs, rhs, "float.eq");
break;
case cLessThan:
performed = ops.b().CreateFCmpULT(lhs, rhs, "float.lt");
break;
case cLessThanEqual:
performed = ops.b().CreateFCmpULE(lhs, rhs, "float.le");
break;
case cGreaterThan:
performed = ops.b().CreateFCmpUGT(lhs, rhs, "float.gt");
break;
case cGreaterThanEqual:
performed = ops.b().CreateFCmpUGE(lhs, rhs, "float.ge");
break;
default:
abort();
}
Value* imm_value = ops.b().CreateSelect(performed,
ops.constant(Qtrue), ops.constant(Qfalse), "select_bool");
i.exception_safe();
i.set_result(imm_value);
}
static void float_op(MathOperation op, Class* klass,
JITOperations& ops, Inliner& i)
{
i.use_send_for_failure();
Value* self = i.recv();
ops.check_class(self, klass, i.failure());
Value* arg = i.arg(0);
BasicBlock* not_float = ops.new_block();
ops.check_class(arg, klass, not_float);
// Float#*(Float)
Value* farg = ops.b().CreateBitCast(arg, ops.state()->ptr_type("Float"),
"arg_float");
Value* unboxed_rhs = ops.b().CreateLoad(
ops.b().CreateConstGEP2_32(farg, 0, 1, "arg.value_pos"), "farg");
BasicBlock* perform = ops.new_block();
BasicBlock* unbox_block = ops.current_block();
ops.b().CreateBr(perform);
// Float#*(Fixnum)
ops.set_block(not_float);
ops.verify_guard(ops.check_if_fixnum(arg), i.failure());
Value* fix_rhs = ops.b().CreateSIToFP(
ops.fixnum_to_native(arg), unboxed_rhs->getType());
BasicBlock* convert_block = ops.current_block();
ops.b().CreateBr(perform);
// perform operation
perform->moveAfter(convert_block);
ops.set_block(perform);
PHINode* rhs = ops.b().CreatePHI(fix_rhs->getType(), "rhs");
rhs->addIncoming(unboxed_rhs, unbox_block);
rhs->addIncoming(fix_rhs, convert_block);
Value* fself = ops.b().CreateBitCast(self, ops.state()->ptr_type("Float"),
"self_float");
Value* lhs = ops.b().CreateLoad(
ops.b().CreateConstGEP2_32(fself, 0, 1, "self.value_pos"), "fself");
Value* performed = 0;
switch(op) {
case cAdd:
performed = ops.b().CreateFAdd(lhs, rhs, "float.add");
break;
case cSub:
performed = ops.b().CreateFSub(lhs, rhs, "float.sub");
break;
case cMultiply:
performed = ops.b().CreateFMul(lhs, rhs, "float.mul");
break;
case cDivide:
performed = ops.b().CreateFDiv(lhs, rhs, "float.div");
break;
case cMod:
performed = ops.b().CreateFRem(lhs, rhs, "float.mod");
break;
default:
abort();
}
Signature sig(ops.state(), ops.state()->ptr_type("Float"));
sig << "VM";
Function* func = sig.function("rbx_float_allocate");
func->setDoesNotAlias(0, true); // return value
Value* call_args[] = { ops.vm() };
CallInst* res = sig.call("rbx_float_allocate", call_args, 1, "result", ops.b());
ops.b().CreateStore(
performed,
ops.b().CreateConstGEP2_32(res, 0, 1));
i.exception_safe();
i.set_result(ops.b().CreateBitCast(res, ops.ObjType));
}