llvm-project

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History

[libc++] Fix copy_backward for vector<bool> with small storage types (#131560 )

This patch fixes an issue in libc++ where `std::copy_backward` and
`ranges::copy_backward` incorrectly copy `std::vector<bool>` with small
storage types (e.g., `uint8_t`, `uint16_t`). The problem arises from
flawed bit mask computations involving integral promotions and sign-bit
extension, leading to unintended zeroing of bits. This patch corrects
the bitwise operations to ensure correct bit-level copying.

Fixes #131718.

2025-03-19 11:58:02 -04:00

benchmarks

[libc++] Refactor and add benchmarks from [alg.nonmodifying] (#128206 )

2025-03-19 00:08:46 -04:00

configs

[NVPTX] Make ctor/dtor lowering always enabled in NVPTX (#126544 )

2025-02-10 14:25:44 -06:00

libcxx

[libc++][test] Adds a test for a reserved name. (#131363 )

2025-03-16 15:37:47 +01:00

std

[libc++] Fix copy_backward for vector<bool> with small storage types (#131560 )