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34 lines
1.5 KiB
Diff
34 lines
1.5 KiB
Diff
From 2a3762cf736aff9aa5dda329fdec3c08a816eb9b Mon Sep 17 00:00:00 2001
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From: Sergei Trofimovich <slyich@gmail.com>
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Date: Tue, 20 May 2025 21:18:28 +0100
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Subject: [PATCH] lib/x86/cpu_features.h: drop evex512 on gcc-16
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gcc-16 `master` branch dropped support for `evex512` as:
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https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=c052a6f4a1c803cb92147ff98fb91cf3511e0856
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As a result libdeflate build started failing as:
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In file included from /build/source/lib/adler32.c:28:
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/build/source/lib/x86/adler32_template.h:135:12: error: attribute 'target' argument 'no-evex512' is unknown
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135 | ADD_SUFFIX(reduce_to_32bits)(vec_t v_s1, vec_t v_s2, u32 *s1_p, u32 *s2_p)
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| ^~~~~~~~~~~~~~~~
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The change adds upper build to `evex512` for `gcc`.
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---
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lib/x86/cpu_features.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/lib/x86/cpu_features.h b/lib/x86/cpu_features.h
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index fbfdb0eb..f9d69d72 100644
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--- a/lib/x86/cpu_features.h
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+++ b/lib/x86/cpu_features.h
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@@ -165,7 +165,7 @@ static inline u32 get_x86_cpu_features(void) { return 0; }
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# define HAVE_AVXVNNI(features) ((features) & X86_CPU_FEATURE_AVXVNNI)
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#endif
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-#if (GCC_PREREQ(14, 0) || CLANG_PREREQ(18, 0, 18000000)) \
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+#if ((GCC_PREREQ(14, 0) && !(GCC_PREREQ(16, 0))) || CLANG_PREREQ(18, 0, 18000000)) \
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&& !defined(__EVEX512__) /* avoid subtracting the evex512 feature */
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# define EVEX512 ",evex512" /* needed to override potential -mno-evex512 */
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# define NO_EVEX512 ",no-evex512"
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