5dd8990841
Clang 3.9 passes the CONFIG_AVX2_OPT configure test. However, the supplied <cpuid.h> does not contain the bit_AVX2 define that we use when detecting whether the routine can be enabled. Introduce a qemu-specific header that uses the compiler's definition of __cpuid et al, but supplies any missing bit_* definitions needed. This avoids introducing any extra ifdefs to util/bufferiszero.c, and allows quite a few to be removed from tcg/i386/tcg-target.inc.c. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20170719044018.18063-1-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/* cpuid.h: Macros to identify the properties of an x86 host.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_CPUID_H
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#define QEMU_CPUID_H
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#ifndef CONFIG_CPUID_H
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# error "<cpuid.h> is unusable with this compiler"
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#endif
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#include <cpuid.h>
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/* Cover the uses that we have within qemu. */
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/* ??? Irritating that we have the same information in target/i386/. */
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/* Leaf 1, %edx */
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#ifndef bit_CMOV
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#define bit_CMOV (1 << 15)
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#endif
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#ifndef bit_SSE2
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#define bit_SSE2 (1 << 26)
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#endif
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/* Leaf 1, %ecx */
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#ifndef bit_SSE4_1
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#define bit_SSE4_1 (1 << 19)
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#endif
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#ifndef bit_MOVBE
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#define bit_MOVBE (1 << 22)
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#endif
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#ifndef bit_OSXSAVE
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#define bit_OSXSAVE (1 << 27)
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#endif
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#ifndef bit_AVX
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#define bit_AVX (1 << 28)
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#endif
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/* Leaf 7, %ebx */
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#ifndef bit_BMI
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#define bit_BMI (1 << 3)
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#endif
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#ifndef bit_AVX2
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#define bit_AVX2 (1 << 5)
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#endif
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#ifndef bit_BMI2
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#define bit_BMI2 (1 << 8)
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#endif
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/* Leaf 0x80000001, %ecx */
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#ifndef bit_LZCNT
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#define bit_LZCNT (1 << 5)
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#endif
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#endif /* QEMU_CPUID_H */
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