package/fftw: add x86 optimisations
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com> Cc: guillaume william brs <guillaume.bressaix@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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@ -12,6 +12,12 @@ config BR2_PACKAGE_FFTW
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if BR2_PACKAGE_FFTW
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config BR2_PACKAGE_FFTW_USE_SSE
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bool
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config BR2_PACKAGE_FFTW_USE_SSE2
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bool
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choice
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prompt "fftw precision"
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default BR2_PACKAGE_FFTW_PRECISION_DOUBLE
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@ -20,12 +26,15 @@ choice
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config BR2_PACKAGE_FFTW_PRECISION_SINGLE
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bool "single"
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select BR2_PACKAGE_FFTW_USE_SSE if BR2_X86_CPU_HAS_SSE
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select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
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help
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Compile fftw in single precision, i.e. use 'float' for floating
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point type.
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config BR2_PACKAGE_FFTW_PRECISION_DOUBLE
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bool "double"
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select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
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help
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Compile fftw in double precision (the default), i.e. use 'double'
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for floating point type.
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@ -19,6 +19,10 @@ ifeq ($(BR2_PACKAGE_FFTW_FAST),y)
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FFTW_CFLAGS += -Ofast
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endif
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# x86 optimisations
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FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_USE_SSE),--enable,--disable)-sse
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FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_USE_SSE2),--enable,--disable)-sse2
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FFTW_CONF_OPTS += CFLAGS="$(FFTW_CFLAGS)"
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$(eval $(autotools-package))
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