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arm: Use -O2 instead of -O as optimization flag

Description

arm: Use -O2 instead of -O as optimization flag

When using Clang -O is equivalent to -O2, change it -O2 to make it
consistent with other platforms.

Reference: https://clang.llvm.org/docs/ClangCommandLineReference.html#optimization-level

Submitted by: Daniel Engberg (daniel.engberg.lists@pyret.net)
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D21021

Details

Committed
manuJul 22 2019, 10:17 AM
Reviewer
emaste
Differential Revision
D21021: arm: Use -O2 instead of -O as optimization flag
Parents
rS350209: MFC r346431, r349872
Branches
Unknown
Tags
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