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

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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
This commit is contained in:
Emmanuel Vadot 2019-07-22 10:17:59 +00:00
parent fd6659d50b
commit 7d63f8b6df
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=350210
1 changed files with 1 additions and 1 deletions
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share/mk/sys.mk
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@ -166,7 +166,7 @@ CC ?= c89
CFLAGS ?= -O
.else
CC ?= cc
.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
.if ${MACHINE_CPUARCH} == "mips"
CFLAGS ?= -O -pipe
.else
CFLAGS ?= -O2 -pipe