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Remove -simplifycfg-dup-ret from CLANG_OPT_SMALL flags for clang 13

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After llvm/clang 13.0.0, the -simplifycfg-dup-ret backend flag is no
longer supported. This was part of CLANG_OPT_SMALL, which is only still
used for stand/i386/boot2 and stand/i386/isoboot, to achieve the very
small binary size required. Luckily clang 13.0.0 does not need any
additional flags for this (I get 240 bytes available when building
boot2).

MFC after:	3 days
This commit is contained in:
Dimitry Andric 2021-08-29 15:39:16 +02:00
parent 80078d9d38
commit 22b8ab15c4
1 changed files with 4 additions and 2 deletions
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6
share/mk/bsd.sys.mk
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@ -228,8 +228,10 @@ CFLAGS+=-nobuiltininc -idirafter ${COMPILER_RESOURCE_DIR}/include
.endif
.endif
CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
-mllvm -simplifycfg-dup-ret
CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3
.if ${COMPILER_VERSION} < 130000
CLANG_OPT_SMALL+= -mllvm -simplifycfg-dup-ret
.endif
CLANG_OPT_SMALL+= -mllvm -enable-load-pre=false
CFLAGS.clang+= -Qunused-arguments
# The libc++ headers use c++11 extensions. These are normally silenced because