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Yibo CaiAntoine Pitrou
e5b0957b2c5
Yibo Cai authored and Antoine Pitrou committed 6cacfff4809
ARROW-13534: [C++] Improve csv chunker

Add hints to help compiler deleting dead code per template augments.
Tested with clang-10, gcc-9.3, on x86 and Arm, observed ~20% uplift for
quoting=false benchmark. Probably due to better code locality.

Closes #10859 from cyb70289/13534-csv-chunker

Authored-by: Yibo Cai <yibo.cai@arm.com>
Signed-off-by: Antoine Pitrou <antoine@python.org>