This reduces our codegen size and removes a few umov instructions.
Performance falls within noise but this small change will allow us to do
more vector optimizations in C code in the future.
This is preparation work to allow passing the corestate to the x87 soft
float handlers directly for some profile stats.
Performance-wise, this change falls within noise because it basically
moves the GPR->Vector moves from the JIT in to C code, my microbench saw
the largest excursion of 5% but that's still within noise in the current
design of my bench.
A more tangible win from this change alone is less codegen on the JIT
side.
Fixes fxtract by returning the correct values for 0.0 and -0.0. We moved the split of fxtract into _sig and _exp, to the opcode dispatcher, to ease some comparisons.
Also removed the IR node F80XTRACTStack which is not needed anymore.
fixes incorrect signs on FPREM. in turn should fix end-to-end failures logging
into Steam.
Thank you to Sergio Lopez for tracking down the JavaScript fail, and Ryan for
finding the bug.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
It is not an external component, and it makes paths needlessly long.
Ryan seemed amenable to this when we discussed on IRC earlier.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>