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-rw-r--r--src/corelib/global/qsimd_p.h29
1 files changed, 2 insertions, 27 deletions
diff --git a/src/corelib/global/qsimd_p.h b/src/corelib/global/qsimd_p.h
index 118a62e6ac..fdf5529135 100644
--- a/src/corelib/global/qsimd_p.h
+++ b/src/corelib/global/qsimd_p.h
@@ -198,33 +198,8 @@
# include <immintrin.h>
# endif
-# if defined(__SSE4_2__) && defined(QT_COMPILER_SUPPORTS_SIMD_ALWAYS) && (defined(Q_CC_INTEL) || defined(Q_CC_MSVC))
-// POPCNT instructions:
-// All processors that support SSE4.2 support POPCNT
-// (but neither MSVC nor the Intel compiler define this macro)
-# define __POPCNT__ 1
-# endif
-
-// AVX intrinsics
-# if defined(__AVX__) && defined(QT_COMPILER_SUPPORTS_SIMD_ALWAYS) && (defined(Q_CC_INTEL) || defined(Q_CC_MSVC))
-// PCLMULQDQ instructions:
-// All processors that support AVX support PCLMULQDQ
-// (but neither MSVC nor the Intel compiler define this macro)
-# define __PCLMUL__ 1
-# endif
-
-# if defined(__AVX2__) && defined(QT_COMPILER_SUPPORTS_SIMD_ALWAYS) && (defined(Q_CC_INTEL) || defined(Q_CC_MSVC))
-// F16C instructions:
-// All processors that support AVX2 support F16C:
-// (but neither MSVC nor the Intel compiler define this macro)
-# define __F16C__ 1
-# endif
-
-# if defined(__BMI__) && !defined(__BMI2__) && defined(Q_CC_INTEL)
-// BMI2 instructions:
-// All processors that support BMI support BMI2 (and AVX2)
-// (but neither MSVC nor the Intel compiler define this macro)
-# define __BMI2__ 1
+# if defined(Q_CC_GNU) && defined(__AVX2__) && (!defined(__BMI__) || !defined(__FMA__))
+# error "Please enable the BMI and FMA extensions; you probably want to use -march=haswell or -march=x86-64-v3 instead of -mavx2"
# endif
# include "qsimd_x86_p.h"