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package/fftw: add x86 optimisations

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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>
This commit is contained in:
Yann E. MORIN 2015-03-16 17:31:22 +01:00 committed by Thomas Petazzoni
parent 96336c6248
commit 20b741da4c
2 changed files with 13 additions and 0 deletions
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9
package/fftw/Config.in
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@ -12,6 +12,12 @@ config BR2_PACKAGE_FFTW
if BR2_PACKAGE_FFTW
config BR2_PACKAGE_FFTW_USE_SSE
bool
config BR2_PACKAGE_FFTW_USE_SSE2
bool
choice
prompt "fftw precision"
default BR2_PACKAGE_FFTW_PRECISION_DOUBLE
@ -20,12 +26,15 @@ choice
config BR2_PACKAGE_FFTW_PRECISION_SINGLE
bool "single"
select BR2_PACKAGE_FFTW_USE_SSE if BR2_X86_CPU_HAS_SSE
select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
help
Compile fftw in single precision, i.e. use 'float' for floating
point type.
config BR2_PACKAGE_FFTW_PRECISION_DOUBLE
bool "double"
select BR2_PACKAGE_FFTW_USE_SSE2 if BR2_X86_CPU_HAS_SSE2
help
Compile fftw in double precision (the default), i.e. use 'double'
for floating point type.

4
package/fftw/fftw.mk
View file

@ -19,6 +19,10 @@ ifeq ($(BR2_PACKAGE_FFTW_FAST),y)
FFTW_CFLAGS += -Ofast
endif
# x86 optimisations
FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_USE_SSE),--enable,--disable)-sse
FFTW_CONF_OPTS += $(if $(BR2_PACKAGE_FFTW_USE_SSE2),--enable,--disable)-sse2
FFTW_CONF_OPTS += CFLAGS="$(FFTW_CFLAGS)"
$(eval $(autotools-package))