package/bayer2rgb-neon: fix aarch64 build with BR2_OPTIMIZE_0
Fix the following build failure with aarch64 and BR2_OPTIMIZE_0 raised since commit0512910e49
: src/convert-neon-body-bayer8.inc.h: In function 'bayer2rgb_convert_neon': src/convert-neon.c:233:17: error: third argument to '__builtin_prefetch' must be a constant 233 | __builtin_prefetch(((void const *)(_addr)) + 64, 0, (_lvl)); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/convert-neon-body-bayer8.inc.h:8:9: note: in expansion of macro 'do_prefetch' 8 | do_prefetch(&in[+1*stride - 1], (rows_per_loop) < 3 ? 3 : 0); | ^~~~~~~~~~~ Fixes: - http://autobuild.buildroot.org/results/307c1c448becd99dfba3a17b3ef816db0bb5cad6 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> (cherry picked from commit13f8df8ed6
) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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@ -19,6 +19,14 @@ ifeq ($(BR2_arm),y)
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BAYER2RGB_NEON_CFLAGS += -mfpu=neon
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endif
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# __builtin_prefetch() third argument must be a constant, but
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# bayer2rgb-neon uses a variable, derived from a constant, so some
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# optimization is needed to allow the compiler to turn it into a
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# constant, otherwise the build fails
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ifeq ($(BR2_OPTIMIZE_0),y)
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BAYER2RGB_NEON_CFLAGS += -O1
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endif
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BAYER2RGB_NEON_CONF_ENV = CFLAGS="$(BAYER2RGB_NEON_CFLAGS)"
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$(eval $(autotools-package))
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