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Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
> I do believe the patch is trivial (note I didn't say obvious) if you
> investigated the failure mode.
I'd have said the opposite (it's an obvious fix but not a trivial change,
because of the quirks of the dataflow engine) but I'm not a native speaker.
> Otherwise, I would very much prefer fixing PR21291/PR32004, which is as
> bad a regression as the one I introduced. Of course, I'm not meaning
> I'm *not* sorry to have introduced a regression.
But PR21291/PR32004 was reported against 4.3 only! A testcase was later found
that fails with all 4.x compilers, but AFAICS it was not reported by a user.
So I still think that this patch should not have been put on the 4.1 branch.