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`stage2_spirv64` -> `stage2_spirv`
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This commit effectively reverts 9e683f0, and hence un-accepts #19777.
While nice in theory, this proposal turned out to have a few problems.
Firstly, supplying a result type implicitly coerces the operand to this
type -- that's the main point of result types! But for `try`, this is
actually a bad idea; we want a redundant `try` to be a compile error,
not to silently coerce the non-error value to an error union. In
practice, this didn't always happen, because the implementation was
buggy anyway; but when it did, it was really quite silly. For instance,
`try try ... try .{ ... }` was an accepted expression, with the inner
initializer being initially coerced to `E!E!...E!T`.
Secondly, the result type inference here didn't play nicely with
`return`. If you write `return try`, the operand would actually receive
a result type of `E!E!T`, since the `return` gave a result type of `E!T`
and the `try` wrapped it in *another* error union. More generally, the
problem here is that `try` doesn't know when it should or shouldn't
nest error unions. This occasionally broke code which looked like it
should work.
So, this commit prevents `try` from propagating result types through to
its operand. A key motivation for the original proposal here was decl
literals; so, as a special case, `try .foo(...)` is still an allowed
syntax form, caught by AstGen and specially lowered. This does open the
doors to allowing other special cases for decl literals in future, such
as `.foo(...) catch ...`, but those proposals are for another time.
Resolves: #21991
Resolves: #22633
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Resolves: #21414
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This is mainly useful in conjunction with Decl Literals (#9938).
Resolves: #19777
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- implements `airSlice`, `airBitAnd`, `airBitOr`, `airShr`.
- got a basic design going for the `airErrorName` but for some reason it simply returns
empty bytes. will investigate further.
- only generating `.got.zig` entries when not compiling an object or shared library
- reduced the total amount of ops a mnemonic can have to 3, simplifying the logic
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Some tests are now failing due to debug info changes, some tests
now pass due to improved compiler functionality.
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Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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- unwrap_errunion_err for registers
- unwrap_errunion_payload for registers
- ptr_slice_len_ptr for all MCValues
- ptr_slice_ptr_ptr for all MCValues
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* airSlice
* airArrayToSlice
* and initial support for airSlicePtr and co
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Conflicts:
* doc/langref.html.in
* lib/std/enums.zig
* lib/std/fmt.zig
* lib/std/hash/auto_hash.zig
* lib/std/math.zig
* lib/std/mem.zig
* lib/std/meta.zig
* test/behavior/alignof.zig
* test/behavior/bitcast.zig
* test/behavior/bugs/1421.zig
* test/behavior/cast.zig
* test/behavior/ptrcast.zig
* test/behavior/type_info.zig
* test/behavior/vector.zig
Master branch added `try` to a bunch of testing function calls, and some
lines also had changed how to refer to the native architecture and other
`@import("builtin")` stuff.
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And fix test cases to make them pass. This is in preparation for
starting to pass behavior tests with self-hosted.
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