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[PULL 34/45] compiler.h: remove GCC < 3 __builtin_expect fallback
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From: |
Paolo Bonzini |
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Subject: |
[PULL 34/45] compiler.h: remove GCC < 3 __builtin_expect fallback |
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Date: |
Tue, 15 Dec 2020 12:54:34 -0500 |
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(-)
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
--
2.26.2
- [PULL 35/45] qemu-plugin.h: remove GCC < 4, (continued)
- [PULL 35/45] qemu-plugin.h: remove GCC < 4, Paolo Bonzini, 2020/12/15
- [PULL 42/45] linux-user: remove GNUC check, Paolo Bonzini, 2020/12/15
- [PULL 20/45] accel/tcg: Remove deprecated '-tb-size' option, Paolo Bonzini, 2020/12/15
- [PULL 28/45] qemu-option: pass QemuOptsList to opts_accepts_any, Paolo Bonzini, 2020/12/15
- [PULL 24/45] icount: improve exec nocache usage, Paolo Bonzini, 2020/12/15
- [PULL 29/45] vl: rename local variable in configure_accelerators, Paolo Bonzini, 2020/12/15
- [PULL 31/45] hw/core: Restrict 'fw-path-provider.c' to system mode emulation, Paolo Bonzini, 2020/12/15
- [PULL 33/45] accel/tcg: Remove special case for GCC < 4.6, Paolo Bonzini, 2020/12/15
- [PULL 30/45] docs: set CONFDIR when running sphinx, Paolo Bonzini, 2020/12/15
- [PULL 37/45] virtiofsd: replace _Static_assert with QEMU_BUILD_BUG_ON, Paolo Bonzini, 2020/12/15
- [PULL 34/45] compiler.h: remove GCC < 3 __builtin_expect fallback,
Paolo Bonzini <=
- [PULL 39/45] poison: remove GNUC check, Paolo Bonzini, 2020/12/15
- [PULL 38/45] compiler.h: explicit case for Clang printf attribute, Paolo Bonzini, 2020/12/15
- [PULL 41/45] compiler: remove GNUC check, Paolo Bonzini, 2020/12/15
- [PULL 19/45] memory: clamp cached translation in case it points to an MMIO region, Paolo Bonzini, 2020/12/15
- [PULL 44/45] scripts/git.orderfile: Keep files with .inc extension sorted, Paolo Bonzini, 2020/12/15
- [PULL 43/45] compiler.h: remove QEMU_GNUC_PREREQ, Paolo Bonzini, 2020/12/15
- [PULL 40/45] xen: remove GNUC check, Paolo Bonzini, 2020/12/15
- [PULL 45/45] build: -no-pie is no functional linker flag, Paolo Bonzini, 2020/12/15
- Re: [PULL 00/45] Misc patches for 2020-12-15, Peter Maydell, 2020/12/16