neon-scalar-recip.s 2.47 KB
// RUN: llvm-mc -triple aarch64-none-linux-gnu -mattr=+neon,+fullfp16 -show-encoding < %s | FileCheck %s

// Check that the assembler can handle the documented syntax for AArch64

//----------------------------------------------------------------------
// Floating-point Reciprocal Step
//----------------------------------------------------------------------

    frecps h21, h16, h13
    frecps s21, s16, s13
    frecps d22, d30, d21

// CHECK: frecps  h21, h16, h13           // encoding: [0x15,0x3e,0x4d,0x5e]
// CHECK: frecps s21, s16, s13   // encoding: [0x15,0xfe,0x2d,0x5e]
// CHECK: frecps d22, d30, d21   // encoding: [0xd6,0xff,0x75,0x5e]

//----------------------------------------------------------------------
// Floating-point Reciprocal Square Root Step
//----------------------------------------------------------------------

    frsqrts h21, h5, h12
    frsqrts s21, s5, s12
    frsqrts d8, d22, d18

// CHECK: frsqrts h21, h5, h12            // encoding: [0xb5,0x3c,0xcc,0x5e]
// CHECK: frsqrts s21, s5, s12   // encoding: [0xb5,0xfc,0xac,0x5e]
// CHECK: frsqrts d8, d22, d18   // encoding: [0xc8,0xfe,0xf2,0x5e]

//----------------------------------------------------------------------
// Scalar Floating-point Reciprocal Estimate
//----------------------------------------------------------------------

    frecpe h19, h14
    frecpe s19, s14
    frecpe d13, d13

// CHECK: frecpe  h19, h14                // encoding: [0xd3,0xd9,0xf9,0x5e]
// CHECK: frecpe s19, s14    // encoding: [0xd3,0xd9,0xa1,0x5e]
// CHECK: frecpe d13, d13    // encoding: [0xad,0xd9,0xe1,0x5e]

//----------------------------------------------------------------------
// Scalar Floating-point Reciprocal Exponent
//----------------------------------------------------------------------

    frecpx h18, h10
    frecpx s18, s10
    frecpx d16, d19

// CHECK: frecpx  h18, h10                // encoding: [0x52,0xf9,0xf9,0x5e]
// CHECK: frecpx s18, s10    // encoding: [0x52,0xf9,0xa1,0x5e]
// CHECK: frecpx d16, d19    // encoding: [0x70,0xfa,0xe1,0x5e]

//----------------------------------------------------------------------
// Scalar Floating-point Reciprocal Square Root Estimate
//----------------------------------------------------------------------

    frsqrte h22, h13
    frsqrte s22, s13
    frsqrte d21, d12

// CHECK: frsqrte h22, h13                // encoding: [0xb6,0xd9,0xf9,0x7e]
// CHECK: frsqrte s22, s13    // encoding: [0xb6,0xd9,0xa1,0x7e]
// CHECK: frsqrte d21, d12    // encoding: [0x95,0xd9,0xe1,0x7e]