As discussed offline, I additionally had to prevent Mul instructions from
ignoring their observed output type.
https://codereview.chromium.org/14320021/diff/5001/src/hydrogen-instructions.cc
File src/hydrogen-instructions.cc (right):
https://codereview.chromium.org/14320021/diff/5001/src/hydrogen-instructions.cc#newcode2255
src/hydrogen-instructions.cc:2255: if
(observed_output_representation_.is_more_general_than(rep)) {
On 2013/04/22 13:52:29, Sven Panne wrote:
Simplifying this a bit and extracting a predicate makes this much more
readable:
-----------------------------------------------
bool
HBinaryoperation::IgnoreObservedOutputRepresentation(Representation rep)
{
return observed_output_representation_.IsDouble() &&
rep.IsInteger32() &&
!this->IsDiv() &&
CheckUsesForFlag(kTruncatingToInt32);
}
In HBinaryOperation::RepresentationFromInputs:
...
if (observed_output_representation_.is_more_general_than(rep) &&
!IgnoreObservedOutputRepresentation(rep)) {
rep = observed_output_representation_;
}
...
-----------------------------------------------
Done.
https://codereview.chromium.org/14320021/
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