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Relates to
https://github.com/llvm/llvm-project/issues/119281#issuecomment-2699470459
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Fix this minor bug. See more context at #129892.
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This reverts commit 1e6e845d49a336e9da7ca6c576ec45c0b419b5f6 because it
changed the 1st parameter of adjust() to be unsigned, but libc itself
calls adjust() with a negative argument in align_backward() in
op_generic.h.
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Relates to: #119281
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This is a part of #97655.
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declaration" (#98593)
Reverts llvm/llvm-project#98075
bots are broken
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This is a part of #97655.
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See Buildbot failures:
- https://lab.llvm.org/buildbot/#/builders/11/builds/743
- https://lab.llvm.org/buildbot/#/builders/182/builds/362
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for consistency (#87808)
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This is a reland of #86137 with a fix for platforms / compiler that do
not support trivially constructible int128 types.
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Reverts llvm/llvm-project#86137
Some aarch64 compilers seem to consider that `uint128_t` is not
`is_trivially_constructible` which prevents `bit_cast`-ing.
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This patch moves most of the multiprecision logic to the `multiword`
namespace and simplifies some logic in `BigInt`. It also fully
implements the mask and count functions and increases test coverage.
`math_extras.h` is also reworked to make it more concise.
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Flush out the remaining UInt<128> support and add test coverage.
We could have used cpp::popcount in the implementation of
UInt::has_single_bit, but
has_single_bit has a perhaps useful early return.
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As per TODOs added in
https://github.com/llvm/llvm-project/pull/84035/commits/48b0bc837085a38ff1de33010d9222363f70238f.
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`mask_trailing_ones` (#84325)
#84299 broke the arm32 build, this patch fixes it forward.
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Split `builtin_wrapper.h` into `bit.h` and `math_extras.h` to mimic LLVM
`llvm/ADT/Bit.h` and `llvm/Support/MathExtras.h`.
Also added unittest place holders.
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