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6855215: Calculation error (NaN) after about 1500 calculations

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2009-08-31 17:07:53 -07:00
parent 457be8ad49
commit 57a92290f4
5 changed files with 90 additions and 12 deletions
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13
hotspot/src/share/vm/c1/c1_LIR.cpp
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@ -567,8 +567,6 @@ void LIR_OpVisitState::visit(LIR_Op* op) {
case lir_rem:
case lir_sqrt:
case lir_abs:
case lir_log:
case lir_log10:
case lir_logic_and:
case lir_logic_or:
case lir_logic_xor:
@ -644,13 +642,16 @@ void LIR_OpVisitState::visit(LIR_Op* op) {
case lir_tan:
case lir_sin:
case lir_cos: {
case lir_cos:
case lir_log:
case lir_log10: {
assert(op->as_Op2() != NULL, "must be");
LIR_Op2* op2 = (LIR_Op2*)op;
// sin and cos need two temporary fpu stack slots, so register
// two temp operands. Register input operand as temp to
// guarantee that they do not overlap
// On x86 tan/sin/cos need two temporary fpu stack slots and
// log/log10 need one so handle opr2 and tmp as temp inputs.
// Register input operand as temp to guarantee that it doesn't
// overlap with the input.
assert(op2->_info == NULL, "not used");
assert(op2->_opr1->is_valid(), "used");
do_input(op2->_opr1); do_temp(op2->_opr1);