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Use 32 registers on ARM64

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This commit is contained in:
Benoit Jacob 2016-12-19 13:44:46 -05:00
parent fb1d0138ec
commit 751e097c57
1 changed files with 4 additions and 2 deletions
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6
Eigen/src/Core/arch/NEON/PacketMath.h
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@ -28,11 +28,13 @@ namespace internal {
#define EIGEN_HAS_SINGLE_INSTRUCTION_CJMADD
#endif
// FIXME NEON has 16 quad registers, but since the current register allocator
// is so bad, it is much better to reduce it to 8
#ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS
#if EIGEN_ARCH_ARM64
#define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 32
#else
#define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 16
#endif
#endif
typedef float32x2_t Packet2f;
typedef float32x4_t Packet4f;