"H. S. Teoh via Digitalmars-d" wrote in message
news:[email protected]...
Phobos pull request 2266 [1] has been blocked by an ICE (issue 12057
[2]) for almost a month now. I'm wondering if somebody more familiar
with dmd internals can help fix it. I've managed to reduce the code
down to a minimal (or close to minimal) test case:
It looks like fixresult87 (which makes sure the result of an expression is
in the correct register) sees you wanted a comparison result (mPSW) and that
your value is not already in mPSW. It then asserts it's in ST0, which it
isn't, presumably because it's in an xmm reg, and gives up.
You could try just removing that assert (line 925) or modifying it to accept
xmm regs, it looks like the line below at least considers them a possibility
so who knows, it might work.
If that doesn't work you could try checking for xmm regs and calling
fixresult87 with 'retregs' modified to point to an xmm reg, so it tries to
do a cross-bank copy. This is a crime against nature but it might work.
Really only Walter knows how that stuff should work.
