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Fix compiler version check

This commit is contained in:
Martin Kroeker 2020-10-22 16:23:29 +02:00 committed by GitHub
parent ab7f466467
commit 2e48d560ba
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 4 deletions
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9
kernel/Makefile
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@ -22,20 +22,25 @@ ifeq ($(C_COMPILER), CLANG)
override CFLAGS += -fno-integrated-as override CFLAGS += -fno-integrated-as
endif endif
endif endif
AVX2OPT = AVX2OPT =
ifeq ($(C_COMPILER), GCC) ifeq ($(C_COMPILER), GCC)
# AVX2 support was added in 4.7.0 # AVX2 support was added in 4.7.0
GCCVERSIONGTEQ4 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 4) GCCVERSIONGTEQ4 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 4)
GCCVERSIONGTEQ5 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 5)
GCCMINORVERSIONGTEQ7 := $(shell expr `$(CC) -dumpversion | cut -f2 -d.` \>= 7) GCCMINORVERSIONGTEQ7 := $(shell expr `$(CC) -dumpversion | cut -f2 -d.` \>= 7)
ifeq ($(GCCVERSIONGTEQ4)$(GCCMINORVERSIONGTEQ7), 11) GCCVERSIONCHECK := $(GCCVERSIONGTEQ5)$(GCCVERSIONGTEQ4)$(GCCMINORVERSIONGTEQ7)
ifeq ($(GCCVERSIONCHECK), $(filter $(GCCVERSIONCHECK), 011 110 111))
AVX2OPT = -mavx2 AVX2OPT = -mavx2
endif endif
endif endif
ifeq ($(C_COMPILER), CLANG) ifeq ($(C_COMPILER), CLANG)
# Any clang posing as gcc 4.2 should be new enough (3.4 or later) # Any clang posing as gcc 4.2 should be new enough (3.4 or later)
GCCVERSIONGTEQ4 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 4) GCCVERSIONGTEQ4 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 4)
GCCVERSIONGTEQ5 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 5)
GCCMINORVERSIONGTEQ2 := $(shell expr `$(CC) -dumpversion | cut -f2 -d.` \>= 2) GCCMINORVERSIONGTEQ2 := $(shell expr `$(CC) -dumpversion | cut -f2 -d.` \>= 2)
ifeq ($(GCCVERSIONGTEQ4)$(GCCMINORVERSIONGTEQ2), 11) GCCVERSIONCHECK := $(GCCVERSIONGTEQ5)$(GCCVERSIONGTEQ4)$(GCCMINORVERSIONGTEQ7)
ifeq ($(GCCVERSIONCHECK), $(filter $(GCCVERSIONCHECK), 011 110 111))
AVX2OPT = -mavx2 AVX2OPT = -mavx2
endif endif
endif endif