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bug #871: fix compilation on ARM/Neon regarding __has_builtin usage

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Gael Guennebaud
2014-09-01 10:52:58 +02:00
parent 01f3ca3e8d
commit 0369db12af
2 changed files with 8 additions and 1 deletions
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2
Eigen/src/Core/arch/NEON/PacketMath.h
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@@ -52,7 +52,7 @@ typedef uint32x4_t Packet4ui;
// arm64 does have the pld instruction. If available, let's trust the __builtin_prefetch built-in function
// which available on LLVM and GCC (at least)
#if (defined(__has_builtin) && __has_builtin(__builtin_prefetch)) || defined(__GNUC__)
#if EIGEN_HAS_BUILTIN(__builtin_prefetch) || defined(__GNUC__)
#define EIGEN_ARM_PREFETCH(ADDR) __builtin_prefetch(ADDR);
#elif defined __pld
#define EIGEN_ARM_PREFETCH(ADDR) __pld(ADDR)