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* Implement error notes
- note: other symbol exported here
- note: previous else prong is here
- note: previous '_' prong is here
* Add Compilation.CObject.ErrorMsg. This object properly converts to
AllErrors.Message when the time comes.
* Add Compilation.CObject.failure_retryable. Properly handles
out-of-memory and other transient failures.
* Introduce Module.SrcLoc which has not only a byte offset but also
references the file which the byte offset applies to.
* Scope.Block now contains both a pointer to the "owner" Decl and the
"source" Decl. As an example, during inline function call, the
"owner" will be the Decl of the caller and the "source" will be the
Decl of the callee.
* Module.ErrorMsg now sports a `file_scope` field so that notes can
refer to source locations in a file other than the parent error
message.
* Some instances where a `*Scope` was stored, now store a
`*Scope.Container`.
* Some methods in the `Scope` namespace were moved to the more specific
type, since there was only an implementation for one particular tag.
- `removeDecl` moved to `Scope.Container`
- `destroy` moved to `Scope.File`
* Two kinds of Scope deleted:
- zir_module
- decl
* astgen: properly use DeclVal / DeclRef. DeclVal was incorrectly
changed to be a reference; this commit fixes it. Fewer ZIR
instructions processed as a result.
- declval_in_module is renamed to declval
- previous declval ZIR instruction is deleted; it was only for .zir
files.
* Test harness: friendlier diagnostics when an unexpected set of errors
is encountered.
* zir_sema: fix analyzeInstBlockFlat by properly calling resolvingInst
on the last zir instruction in the block.
Compile log implementation:
* Write to a buffer rather than directly to stderr.
* Only keep track of 1 callsite per Decl.
* No longer mutate the ZIR Inst struct data.
* "Compile log statement found" errors are only emitted when there are
no other compile errors.
-femit-zir and support for .zir source files is regressed. If we wanted
to support this again, outputting .zir would need to be done as yet
another backend rather than in the haphazard way it was previously
implemented.
For parsing .zir, it was implemented previously in a way that was not
helpful for debugging. We need tighter integration with the test harness
for it to be useful; so clearly a rewrite is needed. Given that a
rewrite is needed, and it was getting in the way of progress and
organization of the rest of stage2, I regressed the feature.
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This commit lays the groundwork in preparation for implementing
handling of extern functions in various backends.
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When an argument is unused in the function body, still increment
arg_index so we still select the correct arguments in the args slice.
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std: Support equivalent ArrayList operations in ArrayHashMap
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Previously, the x86_64 backend would remove code for exitlude relocs
if the jump amount were 0. This causes issues as earlier jumps rely on
the jump being present at the same address.
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Implement missing `.register` prong for `aarch64` `genSetReg`.
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Instead of freeing ZIR after semantic analysis, we keep it around so
that it can be used for comptime calls, inline calls, and generic
function calls. ZIR memory is now managed by the Decl arena.
Debug dump() functions are conditionally compiled; only available in
Debug builds of the compiler.
Add a test for an inline function call.
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* remove the -Ddump-zir thing. that's handled through --verbose-ir
* rework Fn to have an is_inline flag without requiring any more memory
on the heap per function.
* implement a rough first version of dumping typed zir (tzir) which is
a lot more helpful for debugging than what we had before. We don't
have a way to parse it though.
* keep track of whether the inline-ness of a function changes because
if it does we have to go update callsites.
* add compile error for inline and export used together.
inline function calls and comptime function calls are implemented the
same way. A block instruction is set up to capture the result, and then
a scope is set up that has a flag for is_comptime and some state if the
scope is being inlined.
when analyzing `ret` instructions, zig looks for inlining state in the
scope, and if found, treats `ret` as a `break` instruction instead, with
the target block being the one set up at the inline callsite.
Follow-up items:
* Complete out the debug TZIR dumping code.
* Don't redundantly generate ZIR for each inline/comptime function
call. Instead we should add a new state enum tag to Fn.
* comptime and inlining branch quotas.
* Add more test cases.
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This is the same as the previous commit but for Value instead of Type.
Add `Value.castTag` and note that it is preferable to call than
`Value.cast`. This matches other abstractions in the codebase.
Added a convenience function `Value.Tag.create` which really cleans up
the callsites of creating `Value` objects.
`Value` tags can now share payload types. This is in preparation for
another improvement that I want to do.
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Add `Type.castTag` and note that it is preferable to call than
`Type.cast`. This matches other abstractions in the codebase.
Added a convenience function `Type.Tag.create` which really cleans up
the callsites of creating `Type` objects.
`Type` payloads can now share types. This is in preparation for another
improvement that I want to do.
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lld+macho: patch lld output on Apple Silicon by calculating and embedding adhoc code signature
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The purpose of this is to save time in the edit-compile-test cycle when
working on stage2 code.
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Co-authored-by: Andrew Kelley <andrew@ziglang.org>
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* Move leb128 out of debug and remove trivial *mem functions as discussed in #5588
* Turns out one of the *Mem functions was used by MachO. Replaced with trivial use of FixedBufferStream.
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