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what was happening is that instructions like `lb` were only affecting the lower bytes of the register and leaving the top dirty. this would lead to situtations were `cmp_eq` for example was using `xor`, which was failing because of the left-over stuff in the top of the register.
with this commit, we now zero out or truncate depending on the context, to ensure instructions like xor will provide proper results.
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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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The old vectorization helper (WipElementWise) was clunky and a bit
annoying to use, and it wasn't really flexible enough.
This introduces a new vectorization helper, which uses Temporary and
Operation types to deduce a Vectorization to perform the operation
in a reasonably efficient manner. It removes the outer loop
required by WipElementWise so that implementations of AIR instructions
are cleaner. This helps with sanity when we start to introduce support
for composite integers.
airShift, convertToDirect, convertToIndirect, and normalize are initially
implemented using this new method.
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Besides the Intel OpenCL CPU runtime, we can now run the
behavior tests using the Portable Computing Language. This
implementation is open-source, so it will be easier for us
to patch in updated versions of spirv-llvm-translator that
have bug fixes etc.
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This instruction seems common in compiler_rt.
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This enables the last compiler-rt test disabled for the x86_64 backend.
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* Add clarification in langref
* move test case to behavior tests
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* 128-bit integer multiplication with overflow
* more instruction encodings used by std inline asm
* implement the `try_ptr` air instruction
* follow correct stack frame abi
* enable full panic handler
* enable stack traces
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Seems that bit integers are not properly supported
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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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1611 passed; 262 skipped; 0 failed.
(was: 1543 passed; 330 skipped; 0 failed.)
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Closes #16844
Reduces #16846
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See #16844
See #16845
See #16846
See #16848
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This also required implementing the necessary syntax in the x86_64 backend.
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Specifically without linking libc.
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Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
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Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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spirv: make more tests pass
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This instruction is not really working well in the LLVM SPIRV translator,
as it is not implemented.
This commit also intruces the constructStruct helper function to initialize
structs at runtime. This is ALSO buggy in the translator, and we must work
around OpCompositeConstruct not working when some of the constituents are
runtime-known only.
Some other improvements are made:
- improved variable() so that it is more useful and no longer requires the
address space. It always puts values in the Function address space,
and returns a pointer to the Generic address space
- adds a boolToInt utility function
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