30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
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From 5ad351f7d271d0be0611797542c831898b2f531c Mon Sep 17 00:00:00 2001
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From: Sergei Trofimovich <slyich@gmail.com>
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Date: Sun, 11 Aug 2024 22:09:34 +0100
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Subject: [PATCH] source/test/testharness.h: don't redefine `__rdtsc()` builtin
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On darwin clang-16 provides `__rdtsc()` builtin. As a result the build
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fails in `nixpkgs` as:
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source/test/testharness.h:78:24: error: static declaration of '__rdtsc' follows non-static declaration
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static inline uint32_t __rdtsc(void)
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^
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x265_3.6/source/test/testharness.h:78:24: note: '__rdtsc' is a builtin with type 2
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The change avoid redefinition on targets that define `__rdtsc()` builtin.
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---
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source/test/testharness.h | 2 ++
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1 file changed, 2 insertions(+)
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--- a/test/testharness.h
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+++ b/test/testharness.h
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@@ -69,6 +69,8 @@ protected:
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#include <intrin.h>
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#elif HAVE_RDTSC
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#include <intrin.h>
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+#elif defined(__has_builtin) && __has_builtin(__rdtsc)
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+/* compiler-provided builtin */
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#elif (!defined(__APPLE__) && (defined (__GNUC__) && (defined(__x86_64__) || defined(__i386__))))
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#include <x86intrin.h>
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#elif ( !defined(__APPLE__) && defined (__GNUC__) && defined(__ARM_NEON__))
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