Comments (3)
zygoloid
commented on July 20, 2024
As I understand it, it's intentional that void f(__float128) when compiled for a "double == 64-bit" target is link-compatible with a void f(long double) when compiled for a "double == double-double" target. If we used g for the former and kg for the latter, that wouldn't work. I expect the same to apply for binary128-format long double.
If we use kg in both cases, then we don't need the k; demanglers can just choose to demangle g as long double (or long double<__float128> or whatever string they prefer). I expect the same to apply for binary128.
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segher
commented on July 20, 2024
__float128 is not an existing type on older compilers. It is currently the binary128 type, but
it is mangled incorrectly (not just the wrong mangling; invalid mangling).
__float128 as demangling for long double has never worked for us.
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segher
commented on July 20, 2024
We now decided to not mangle long double different from the type is stands for, i.e. g for __ibm128
and u9__ieee128 for __ieee128. So I withdraw this request. Thanks.
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