It is possible to get comptime-known values from runtime-known values
for example the length of array. Allowing runtime only instructions to
be emitted outside function bodies allows these operations to happen.
In places where comptime-known values are required we have other methods
to ensure that and they usually result in more specific compile errors too.
Closes#12240
* Sema: implement linksection on functions
* Implement function linksection in Sema.
* Don't clobber function linksection/align/addrspace in Sema.
* Fix copy-paste typo in tests.
* Add a bunch of missing test_step.dependOn.
* Fix checkInSymtab match.
Closes#12546
When we want a runtime pointer to a zero-bit value we use an undef
pointer, but what if we want a runtime pointer to a comptime-only value?
Normally, if `T` is a comptime-only type such as `*const comptime_int`,
then `*const T` would also be a comptime-only type, so anything
referencing a comptime-only value is usually also comptime-only, and
therefore not emitted to the executable.
However, what if instead we have a `*const anyopaque` pointing to a
comptime-only value? Certainly, `*const anyopaque` is a runtime type,
and so we need some runtime value to store, even when it happens to be
pointing to a comptime-only value. In this case we want to do the same
thing as we do when pointing to a zero-bit value, so we use
`hasRuntimeBits` to handle both cases instead of ignoring comptime.
Closes#12025
This makes the following changes for i386:
long long and unsigned long long have 4 byte alignment on non-Windows
f64 (double) has 4-byte alignment on non-Windows
long double is 80 bits and has 4 byte alignment on mingw
long double on android is 64 bits, not 80: https://www.uclibc.org/docs/psABI-i386.pdfFixes#12453Fixes#12987
This implements `@export(a.b, .{..});` in semantic analysis,
allowing users to directly export a variable from a namespace.
* add test case for exporting using field access
Without the packed qualifier, the type layout that we use to
initialize doesn't match the correct layout of the underlying
storage, causing corrupted data and past-the-end writes.
When testing the Wasm linker for the producers section
we do not ever want to strip the binary as this will remove
the producers section in release-small.
This fixes the CI errors by d086b371f0e21e5029e1b0d05838b87502eb63e6
