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Revision tags: llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, 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
# f5b81aa6 16-Aug-2024 gulfemsavrun <gulfem@google.com>

[InstrProf] Support conditional counter updates (#102542)

This patch adds support for conditional counter updates in single byte
counters mode to reduce the write contention by first checking wheth

[InstrProf] Support conditional counter updates (#102542)

This patch adds support for conditional counter updates in single byte
counters mode to reduce the write contention by first checking whether
the counter is set before overwriting it.

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Co-authored-by: Juan Manuel Martinez Caamaño <jmartinezcaamao@gmail.com>

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