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Revision tags: llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6
# 45ff2874 03-Dec-2024 Florian Hahn <flo@fhahn.com>

[ConstraintSystem] Fix signed overflow in negate.

Use AddOverflow for potentially overflowing addition to fixed signed
integer overflow.

Compile-time impact is in the noise
https://llvm-compile-tim

[ConstraintSystem] Fix signed overflow in negate.

Use AddOverflow for potentially overflowing addition to fixed signed
integer overflow.

Compile-time impact is in the noise
https://llvm-compile-time-tracker.com/compare.php?from=bfb26202e05ee2932b4368b5fca607df01e8247f&to=195b0707148b567c674235e59712458e7ce1bb0e&stat=instructions:u

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Revision tags: llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init
# 9d7b3573 28-Dec-2023 Yingwei Zheng <dtcxzyw2333@gmail.com>

[ConstraintElim] Add pre-commit tests for PR76299. NFC. (#76512)

This patch adds pre-commit tests for #76299.
#76262 caused a regression in
[velox/buffer/Buffer.h](https://github.com/facebookincub

[ConstraintElim] Add pre-commit tests for PR76299. NFC. (#76512)

This patch adds pre-commit tests for #76299.
#76262 caused a regression in
[velox/buffer/Buffer.h](https://github.com/facebookincubator/velox/blob/50187434e32bffcbebcd6501898763c56de40065/velox/buffer/Buffer.h#L347-L350).

See also
https://github.com/dtcxzyw/llvm-opt-benchmark/issues/35#issuecomment-1868362725.

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