[pull] master from ziglang:master#592
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pull[bot] merged 13 commits intoAlan-love:masterfrom Feb 26, 2021
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Re-enable the clear-on-free step, it was previously disabled due to translate-c using freed memory.
When two pointers are subtracted, both shall point to elements of the same array object, or one past the last element of the array object; the result is the difference of the subscripts of the two array elements. The size of the result is implementation-defined, and its type (a signed integer type) is ptrdiff_t defined in the <stddef.h> header. If the result is not representable in an object of that type, the behavior is undefined. See C Standard, §6.5.6 [ISO/IEC 9899:2011] Fixes #7216
Add a new allocated_registers bitmap to keep track of all callee-saved registers allocated during generation of this function. Function(.arm).gen uses this data to generate instructions in the function prologue and epilogue to push and pop these registers respectively.
* remove unused definitions * setup os specific blocks
* add cpu count * use haiku find_directory * add definitions and exports for building in haiku
* no isHaiku() function since there is not more than one os tag that this applies to. * clean up some control flow into a switch * add some TODO comments to investigate panics that suspiciously look like they should be compile errors (see #363)
initial support for haiku
* add error_union value tag. * add analyzeIsErr * add Value.isError * add TZIR wrap_errunion_payload and wrap_errunion_err for wrapping from T -> E!T and E -> E!T * add anlyzeInstUnwrapErrCode and analyzeInstUnwrapErr * add analyzeInstEnsureErrPayloadVoid: * add wrapErrorUnion * add comptime error comparison for tests * tests!
This is an accident from a merge conflict introduced in 7edb204. The new pipe2 code I believe is supposed to work for all posix-like systems. If haiku needs special handling here, it should be re-introduced.
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