[patch] Don't error on partial support for x86-64 v3/v4

0001-Don-t-error-on-partial-support-for-x86-64-v3-v4.patch (text/plain), 1.86 KB, created by Mike Gilbert on 2023-03-02 03:14:02 UTC

From 5fe96c901cd1ecd3e53acedeb97efd38b6af49a4 Mon Sep 17 00:00:00 2001
From: Mike Gilbert <[e-mail]>
Date: Wed, 1 Mar 2023 21:31:22 -0500
Subject: [PATCH] Don't error on partial support for x86-64 v3/v4

Bug: https://bugs.gentoo.org/898644
---
 src/corelib/global/qsimd_p.h | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/src/corelib/global/qsimd_p.h b/src/corelib/global/qsimd_p.h
index 1d12902a0a..1449d75d5c 100644
--- a/src/corelib/global/qsimd_p.h
+++ b/src/corelib/global/qsimd_p.h
@@ -227,11 +227,7 @@ asm(
 // macOS's fat binaries support the "x86_64h" sub-architecture and the GNU libc
 // ELF loader also supports a "haswell/" subdir (e.g., /usr/lib/haswell).
 #  define ARCH_HASWELL_MACROS       (__AVX2__ + __BMI2__ + __FMA__ + __LZCNT__)
-#  if ARCH_HASWELL_MACROS != 0
-#    if ARCH_HASWELL_MACROS != 4
-#      error "Please enable all x86-64-v3 extensions; you probably want to use -march=haswell or -march=x86-64-v3 instead of -mavx2"
-#    endif
-static_assert(ARCH_HASWELL_MACROS, "Undeclared identifiers indicate which features are missing.");
+#  if ARCH_HASWELL_MACROS == 4
 #    define __haswell__       1
 #  endif
 #  undef ARCH_HASWELL_MACROS
@@ -243,11 +239,7 @@ static_assert(ARCH_HASWELL_MACROS, "Undeclared identifiers indicate which featur
 // with AVX512 support and it includes all of these too.
 //
 #  define ARCH_SKX_MACROS           (__AVX512F__ + __AVX512BW__ + __AVX512CD__ + __AVX512DQ__ + __AVX512VL__)
-#  if ARCH_SKX_MACROS != 0
-#    if ARCH_SKX_MACROS != 5
-#      error "Please enable all x86-64-v4 extensions; you probably want to use -march=skylake-avx512 or -march=x86-64-v4 instead of -mavx512f"
-#    endif
-static_assert(ARCH_SKX_MACROS, "Undeclared identifiers indicate which features are missing.");
+#  if ARCH_SKX_MACROS == 5
 #    define __skylake_avx512__  1
 #  endif
 #  undef ARCH_SKX_MACROS
-- 
2.39.2