diff mbox series

[PULL,34/45] compiler.h: remove GCC < 3 __builtin_expect fallback

Message ID 20201215175445.1272776-35-pbonzini@redhat.com
State New
Headers show
Series [PULL,01/45] remove preconfig state | expand

Commit Message

Paolo Bonzini Dec. 15, 2020, 5:54 p.m. UTC 
From: Marc-André Lureau <marcandre.lureau@redhat.com>

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>
---
 include/qemu/compiler.h | 4 ----
 1 file changed, 4 deletions(-)
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Patch

diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index c76281f354..226ead6c90 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -44,10 +44,6 @@ 
 #endif
 
 #ifndef likely
-#if __GNUC__ < 3
-#define __builtin_expect(x, n) (x)
-#endif
-
 #define likely(x)   __builtin_expect(!!(x), 1)
 #define unlikely(x)   __builtin_expect(!!(x), 0)
 #endif