[Bug testsuite/124066] EFFECTIVE_TARGETS flags are not visible to check_compile tests

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124066

Richard Sandiford <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |rsandifo at gcc dot gnu.org

--- Comment #5 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> Possibly this is all about using --target_board=unix/\{,-m32\}, aka having
> multiple multilibs tested?
Yeah, that's right.

I think it should work to add the "effective target" as an extra operand to the
cache index, so et_cache($prop,$target,$et) or whatever.