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closes #9388
closes #9321
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closes #6425
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Conflicts:
* cmake/Findclang.cmake
* cmake/Findlld.cmake
* cmake/Findllvm.cmake
In master branch, more search paths were added to these files with "12"
in the path. In this commit I updated them to "13".
* src/stage1/codegen.cpp
* src/zig_llvm.cpp
* src/zig_llvm.h
In master branch, ZigLLVMBuildCmpXchg is improved to add
`is_single_threaded`. However, the LLVM 13 C API has this already, and
in the llvm13 branch, ZigLLVMBuildCmpXchg is deleted in favor of the C
API. In this commit I updated stage2 to use the LLVM 13 C API rather
than depending on an improved ZigLLVMBuildCmpXchg.
Additionally, src/target.zig largestAtomicBits needed to be updated to
include the new m68k ISA.
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Conflicts:
lib/libcxx/include/__config
d57c0cc3bfeff9af297279759ec2b631e6d95140 added support for DragonFlyBSD
to libc++ by updating some ifdefs. This needed to be synced with llvm13.
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We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
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This commit also corrects a mistake from commit
6dc2236054dfcf911ce848f67a4078740a90783a which did not properly delete
files when upgrading to the 1.2.2 musl headers.
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This works around a stage1 compiler bug resulting in a segfault when
trying to use the tool.
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The idea is to depend on this language feature as little as possible
with the hopes that it can be adjusted to be less of an anti-pattern.
This also helps self-hosted, which does not yet implement
`usingnamespace`, get closer to being able to build compiler-rt.
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Lakemont has no x86, no MMX, no SSE and no way of handling any fp-math. In theory LLVM is able to implicitly use the soft-float emulation library calls to legalize any such operation but, given Zig's use of many non-standard features, sometimes we hit a weak spot in the X86 codegen backend.
Consider this as a work-around for this LLVM problem, fixing the problem in LLVM is not so high in my todo list as the target is pretty niche and Intel axed it in '19.
(Commit message by @LemonBoy)
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Many tools were broken after the recent hash-table refactorings, fix
them and ensure they won't silently break again.
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This is a bug fix.
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* stage1 backend allows configuring the uwtables function attr
via a flag rather than its own logic.
* stage2 defaults to enabling uwtable attr when
linking libunwind, or always on windows
* stage2 makes link_eh_frame_hdr true automatically if uwtable
attr is set to be on for zig functions
* CLI: add -funwind-tables and -fno-unwind-tables to allow the user to
override the defaults.
* hook it up to `zig cc`
closes #9046
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Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>
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Storage breaking change.
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- hash/eql functions moved into a Context object
- *Context functions pass an explicit context
- *Adapted functions pass specialized keys and contexts
- new getPtr() function returns a pointer to value
- remove functions renamed to fetchRemove
- new remove functions return bool
- removeAssertDiscard deleted, use assert(remove(...)) instead
- Keys and values are stored in separate arrays
- Entry is now {*K, *V}, the new KV is {K, V}
- BufSet/BufMap functions renamed to match other set/map types
- fixed iterating-while-modifying bug in src/link/C.zig
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Conflicts:
* build.zig
* src/Compilation.zig
* src/codegen/spirv/spec.zig
* src/link/SpirV.zig
* test/stage2/darwin.zig
- this one might be problematic; start.zig looks for `main` in the
root source file, not `_main`. Not sure why there is an underscore
there in master branch.
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There is a lot left to be desired for this tool, as currently dependencies of extensions and dependencies
of capabilities on extensions are not included:
- There is no machine-readable definition of dependencies of extensions.
- A capability may depend on either of a multitude of extensions, which as of yet cannot be properly
modelled in the target system.
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Modeled after GCC's description.
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- original PR #7949 (incorrectly) patched a generated-file and changes
have subsequently been lost/overwritten
- fix #7947 in a different way: drop `ppc32` because `ppc` already exists
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fix drivers: zig {cc,c++}
- `-dynamiclib` is an alias to `-shared`
- associate `-dynamiclib` with zig `.shared` semantics
fix drivers: zig {cc,c++,build-lib,build-exe}
- use `-dynamic` for {exe,dylib}
- for dylib this fixes a regression
- for exe this replaces incorrect use of `-static`
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Following #8007 and #8137 let's get rid of the last weird format.
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Syncing with master branch because I want to re-run
update_clang_options.zig in the llvm12 branch.
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Clang docs say:
> Like -MMD, but also implies -E and writes to stdout by default.
Previously, Zig handled this option by forwarding it directly to Clang,
and disabling depfiles. However this did not adhere to Clang's documented
behavior of these flags.
Now, in addition to being forwarded directly to Clang, `-MM` also
sets c_out_mode = .preprocessor, just like `-E`.
Another issue I noticed is that Zig did not recognize the aliases for
-MG, -MM, or -MMD. The aliases are now recognized.
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This completes the process. All target CPU features are now
auto-generated by the tools/update_cpu_features.zig script, which
contains all the overrides.
Invoking this tool against LLVM 12rc2 now produces an empty git diff.
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and use it to clean up aarch64 target CPU features
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With this change, added & modified cpus & features participate in the
same pruning system, and sorting takes into account the zig name, not
the pre-modified llvm name.
The modified target files in this commit are due to the improved
sorting and pruning.
The script now fully supports extra cpus & features.
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When a CPU feature implies that another one must be present, avoid
redundantly specifying the other one.
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These are represented by not having a file for them.
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