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#include <assert.h> |
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#include <arm_neon.h> |
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#include <xnnpack/common.h> |
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#include <xnnpack/vcvt.h> |
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void xnn_f16_f32_vcvt_ukernel__neon_int32_x24( |
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size_t batch, |
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const void* input, |
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float* output, |
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const union xnn_f16_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
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{ |
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assert(batch != 0); |
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assert(batch % sizeof(uint16_t) == 0); |
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assert(input != NULL); |
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assert(output != NULL); |
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const uint32x4_t vsign_mask = vmovq_n_u32(0x80000000); |
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const uint32x4_t vexp_offset = vmovq_n_u32(0x70000000); |
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const float32x4_t vexp_scale = vld1q_dup_f32(¶ms->neon.exp_scale); |
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const uint32x4_t vmagic_bias = vmovq_n_u32(0x3F000000); |
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const uint32x4_t vdenorm_cutoff = vmovq_n_u32(0x04000000); |
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const uint16_t* i = (const uint16_t*) input; |
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for (; batch >= 24 * sizeof(uint16_t); batch -= 24 * sizeof(uint16_t)) { |
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const uint16x8_t vh0 = vld1q_u16(i); i += 8; |
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const uint16x8_t vh1 = vld1q_u16(i); i += 8; |
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const uint16x8_t vh2 = vld1q_u16(i); i += 8; |
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const uint32x4_t vw0 = vshll_n_u16(vget_low_u16(vh0), 16); |
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const uint32x4_t vw1 = vshll_n_u16(vget_high_u16(vh0), 16); |
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const uint32x4_t vw2 = vshll_n_u16(vget_low_u16(vh1), 16); |
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const uint32x4_t vw3 = vshll_n_u16(vget_high_u16(vh1), 16); |
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const uint32x4_t vw4 = vshll_n_u16(vget_low_u16(vh2), 16); |
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const uint32x4_t vw5 = vshll_n_u16(vget_high_u16(vh2), 16); |
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const uint32x4_t vsign0 = vandq_u32(vw0, vsign_mask); |
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const uint32x4_t vsign1 = vandq_u32(vw1, vsign_mask); |
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const uint32x4_t vsign2 = vandq_u32(vw2, vsign_mask); |
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const uint32x4_t vsign3 = vandq_u32(vw3, vsign_mask); |
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const uint32x4_t vsign4 = vandq_u32(vw4, vsign_mask); |
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const uint32x4_t vsign5 = vandq_u32(vw5, vsign_mask); |
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const uint32x4_t vnonsign0 = veorq_u32(vw0, vsign0); |
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const uint32x4_t vnonsign1 = veorq_u32(vw1, vsign1); |
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const uint32x4_t vnonsign2 = veorq_u32(vw2, vsign2); |
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const uint32x4_t vnonsign3 = veorq_u32(vw3, vsign3); |
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const uint32x4_t vnonsign4 = veorq_u32(vw4, vsign4); |
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const uint32x4_t vnonsign5 = veorq_u32(vw5, vsign5); |
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const float32x4_t vnorm0 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign0, 3)), vexp_scale); |
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const float32x4_t vnorm1 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign1, 3)), vexp_scale); |
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const float32x4_t vnorm2 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign2, 3)), vexp_scale); |
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const float32x4_t vnorm3 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign3, 3)), vexp_scale); |
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const float32x4_t vnorm4 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign4, 3)), vexp_scale); |
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const float32x4_t vnorm5 = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign5, 3)), vexp_scale); |
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const float32x4_t vdenorm0 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign0, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm1 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign1, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm2 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign2, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm3 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign3, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm4 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign4, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm5 = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign5, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const uint32x4_t vxmask0 = vcgtq_u32(vnonsign0, vdenorm_cutoff); |
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const uint32x4_t vxmask1 = vcgtq_u32(vnonsign1, vdenorm_cutoff); |
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const uint32x4_t vxmask2 = vcgtq_u32(vnonsign2, vdenorm_cutoff); |
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const uint32x4_t vxmask3 = vcgtq_u32(vnonsign3, vdenorm_cutoff); |
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const uint32x4_t vxmask4 = vcgtq_u32(vnonsign4, vdenorm_cutoff); |
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const uint32x4_t vxmask5 = vcgtq_u32(vnonsign5, vdenorm_cutoff); |
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const uint32x4_t vf0 = vorrq_u32(vsign0, vreinterpretq_u32_f32(vbslq_f32(vxmask0, vnorm0, vdenorm0))); |
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const uint32x4_t vf1 = vorrq_u32(vsign1, vreinterpretq_u32_f32(vbslq_f32(vxmask1, vnorm1, vdenorm1))); |
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const uint32x4_t vf2 = vorrq_u32(vsign2, vreinterpretq_u32_f32(vbslq_f32(vxmask2, vnorm2, vdenorm2))); |
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const uint32x4_t vf3 = vorrq_u32(vsign3, vreinterpretq_u32_f32(vbslq_f32(vxmask3, vnorm3, vdenorm3))); |
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const uint32x4_t vf4 = vorrq_u32(vsign4, vreinterpretq_u32_f32(vbslq_f32(vxmask4, vnorm4, vdenorm4))); |
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const uint32x4_t vf5 = vorrq_u32(vsign5, vreinterpretq_u32_f32(vbslq_f32(vxmask5, vnorm5, vdenorm5))); |
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vst1q_f32(output, vreinterpretq_f32_u32(vf0)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf1)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf2)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf3)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf4)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf5)); output += 4; |
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} |
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for (; batch >= 8 * sizeof(uint16_t); batch -= 8 * sizeof(uint16_t)) { |
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const uint16x8_t vh = vld1q_u16(i); i += 8; |
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const uint32x4_t vw_lo = vshll_n_u16(vget_low_u16(vh), 16); |
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const uint32x4_t vw_hi = vshll_n_u16(vget_high_u16(vh), 16); |
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const uint32x4_t vsign_lo = vandq_u32(vw_lo, vsign_mask); |
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const uint32x4_t vsign_hi = vandq_u32(vw_hi, vsign_mask); |
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const uint32x4_t vnonsign_lo = veorq_u32(vw_lo, vsign_lo); |
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const uint32x4_t vnonsign_hi = veorq_u32(vw_hi, vsign_hi); |
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const float32x4_t vnorm_lo = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign_lo, 3)), vexp_scale); |
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const float32x4_t vnorm_hi = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign_hi, 3)), vexp_scale); |
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const float32x4_t vdenorm_lo = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign_lo, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm_hi = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign_hi, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const uint32x4_t vxmask_lo = vcgtq_u32(vnonsign_lo, vdenorm_cutoff); |
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const uint32x4_t vf_lo = vorrq_u32(vsign_lo, vreinterpretq_u32_f32(vbslq_f32(vxmask_lo, vnorm_lo, vdenorm_lo))); |
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const uint32x4_t vxmask_hi = vcgtq_u32(vnonsign_hi, vdenorm_cutoff); |
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const uint32x4_t vf_hi = vorrq_u32(vsign_hi, vreinterpretq_u32_f32(vbslq_f32(vxmask_hi, vnorm_hi, vdenorm_hi))); |
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vst1q_f32(output, vreinterpretq_f32_u32(vf_lo)); output += 4; |
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vst1q_f32(output, vreinterpretq_f32_u32(vf_hi)); output += 4; |
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} |
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if XNN_UNPREDICTABLE(batch != 0) { |
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const uint16x8_t vh = vld1q_u16(i); i += 8; |
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const uint32x4_t vw_lo = vshll_n_u16(vget_low_u16(vh), 16); |
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const uint32x4_t vw_hi = vshll_n_u16(vget_high_u16(vh), 16); |
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const uint32x4_t vsign_lo = vandq_u32(vw_lo, vsign_mask); |
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const uint32x4_t vsign_hi = vandq_u32(vw_hi, vsign_mask); |
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const uint32x4_t vnonsign_lo = veorq_u32(vw_lo, vsign_lo); |
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const uint32x4_t vnonsign_hi = veorq_u32(vw_hi, vsign_hi); |
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const float32x4_t vnorm_lo = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign_lo, 3)), vexp_scale); |
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const float32x4_t vnorm_hi = vmulq_f32(vreinterpretq_f32_u32(vsraq_n_u32(vexp_offset, vnonsign_hi, 3)), vexp_scale); |
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const float32x4_t vdenorm_lo = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign_lo, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const float32x4_t vdenorm_hi = vsubq_f32(vreinterpretq_f32_u32(vsriq_n_u32(vmagic_bias, vnonsign_hi, 16)), vreinterpretq_f32_u32(vmagic_bias)); |
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const uint32x4_t vxmask_lo = vcgtq_u32(vnonsign_lo, vdenorm_cutoff); |
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uint32x4_t vf = vorrq_u32(vsign_lo, vreinterpretq_u32_f32(vbslq_f32(vxmask_lo, vnorm_lo, vdenorm_lo))); |
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if (batch & (4 * sizeof(uint16_t))) { |
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vst1q_f32(output, vreinterpretq_f32_u32(vf)); output += 4; |
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const uint32x4_t vxmask_hi = vcgtq_u32(vnonsign_hi, vdenorm_cutoff); |
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vf = vorrq_u32(vsign_hi, vreinterpretq_u32_f32(vbslq_f32(vxmask_hi, vnorm_hi, vdenorm_hi))); |
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} |
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uint32x2_t vf_lo = vget_low_u32(vf); |
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if (batch & (2 * sizeof(uint16_t))) { |
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vst1_f32(output, vreinterpret_f32_u32(vf_lo)); output += 2; |
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vf_lo = vget_high_u32(vf); |
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} |
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if (batch & (1 * sizeof(uint16_t))) { |
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vst1_lane_f32(output, vreinterpret_f32_u32(vf_lo), 0); |
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} |
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} |
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} |
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