Before this, if a compile error occurred, it would cause the previous
value for e.g. the function scope to not get reset. If the AstGen
process continued, it would result in a violation of the data
guarantees that it relies on.
This commit takes advantage of defer to ensure the previous value is
always reset, even in the case of an error.
Closes#8920
Bitcast the pointer and operands to integer types having the same size,
working around LLVM inability to lower a LL/SC operation when the
operands have floating-point types (and are reasonably sized).
Closes#4457
Currently, stage1 runs astgen for every comptime function call,
resulting in identifier strings being allocated multiple times,
wasting memory. As a workaround until the code is adjusted to
make astgen run only once per source node, we memoize the
result into the AST.
* Rename `ir_gen_*` to `astgen_*`
- Oops, meant to do this in a separate commit. My bad.
* tokenizer: avoid using designated initializer syntax.
MSVC does not support it.
This is progress towards making Stage1Zir immutable, so that we can
avoid generating it for every comptime function call.
Also rename IrExecutableGen to Stage1Air.
* Extracts AstGen logic from ir.cpp into astgen.cpp. Reduces the
largest file of stage1 from 33,551 lines to 25,510.
* tokenizer: rework it completely to match the stage2 tokenizer logic.
They can now be maintained together; when one is changed, the other
can be changed in the same way.
- Each token now takes up 13 bytes instead of 64 bytes. The tokenizer
does not parse char literals, string literals, integer literals,
etc into meaningful data. Instead, that happens during parsing or
astgen.
- no longer store line offsets. Error messages scan source
files to find the line/column as needed (same as stage2).
- main loop: instead of checking the loop, handle a null byte
explicitly in the switch statements. This is a nice improvement
that we may want to backport to stage2.
- delete some dead tokens, artifacts of past syntax that no longer
exists.
* Parser: fix a TODO by parsing builtin functions as tokens rather than
`@` as a separate token. This is how stage2 does it.
* Remove some debugging infrastructure. These will need to be redone,
if at all, as the code migrates to match stage2.
- remove the ast_render code.
- remove the IR debugging stuff
- remove teh token printing code
This will set us up to correctly retrieve the error local index and payload index
depending on that of the multi_value's index. As from now, the error will always use
the multi_value's index, and the payload will use the following locals.
- This currently uses the multi-value feature to return both the possible error, and its payload.
- Also genAlloc and the logic to allocate the locals itself have been seperated, so we can create more locals
whenever needed, and not only when `genAlloc` is called.
Change default behaviour to search for static archives before searching
for dynamic libraries if no flag such as `-search_paths_first` is
specified. Also, fix a bug with early break from outer loop (label
in the wrong place).
* for some reason part of the linkable bits for the crt libraries
are split in different locations for haiku. this changeset
accomodates this situation (crtbegin_dir lookup)
Clang has a completely inconsistent CLI for its integrated assembler for
each target architecture. For x86_64, for example, it does not accept
an -mcpu parameter, and emits "warning: unused parameter". However, for
ARM, -mcpu is needed in order to properly lower assembly to machine code
instructions (see new standalone test case provided thanks to @g-w1).
This is a compromise between
b8f85a805bf61ae11d6ee2bd6d8356fbc98ee3ba and
afb9f695b1bdbf81185e7d55d5783bcbab880989.
This reverts commit afb9f695b1bdbf81185e7d55d5783bcbab880989.
I don't think this was ever actually verified to fix the thing it
purported to, and it started causing warnings for unused command line
parameters.
- more support for linux, android, freebsd, netbsd, openbsd, dragonfly
- centralize musl utils; musl logic is no longer intertwined with csu
- fix musl compilation to build crti/crtn for full archs list
- fix openbsd to support `zig build-lib -dynamic`
- initial dragonfly linking success (with a warning)
ancillary:
- fix emutls (openbsd) tests to use `try`
