compiler.h: remove GCC < 3 __builtin_expect fallback
Since commit efc6c07
("configure: Add a test for the minimum compiler
version"), QEMU explicitely depends on GCC >= 4.8.
(clang >= 3.4 advertizes itself as GCC >= 4.2 compatible and supports
__builtin_expect too)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20201210134752.780923-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -44,10 +44,6 @@
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#endif
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#endif
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#ifndef likely
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#ifndef likely
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#if __GNUC__ < 3
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#define __builtin_expect(x, n) (x)
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#endif
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#define likely(x) __builtin_expect(!!(x), 1)
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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#endif
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