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llvm-6502/test/MC/AArch64/neon-simd-post-ldst-multi-elem.s
Hao Liu 591c2f738a Implement AArch64 post-index vector load/store multiple N-element structure class SIMD(lselem-post). 
Including following 14 instructions:
4 ld1 insts: post-index load multiple 1-element structure to sequential 1/2/3/4 registers.
ld2/ld3/ld4: post-index load multiple N-element structure to sequential N registers (N=2,3,4).
4 st1 insts: post-index store multiple 1-element structure from sequential 1/2/3/4 registers.
st2/st3/st4: post-index store multiple N-element structure from sequential N registers (N = 2,3,4).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194043 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-05 03:39:32 +00:00

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// RUN: llvm-mc -triple=aarch64 -mattr=+neon -show-encoding < %s | FileCheck %s
// Check that the assembler can handle the documented syntax for AArch64
//------------------------------------------------------------------------------
// Load multiple 1-element structures from one register (post-index)
//------------------------------------------------------------------------------
ld1 {v0.16b}, [x0], x1
ld1 {v15.8h}, [x15], x2
ld1 {v31.4s}, [sp], #16
ld1 {v0.2d}, [x0], #16
ld1 {v0.8b}, [x0], x2
ld1 {v15.4h}, [x15], x3
ld1 {v31.2s}, [sp], #8
ld1 {v0.1d}, [x0], #8
// CHECK: ld1 {v0.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x70,0xc1,0x4c]
// CHECK: ld1 {v15.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x75,0xc2,0x4c]
// CHECK: ld1 {v31.4s}, [sp], #16
// CHECK: // encoding: [0xff,0x7b,0xdf,0x4c]
// CHECK: ld1 {v0.2d}, [x0], #16
// CHECK: // encoding: [0x00,0x7c,0xdf,0x4c]
// CHECK: ld1 {v0.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x70,0xc2,0x0c]
// CHECK: ld1 {v15.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x75,0xc3,0x0c]
// CHECK: ld1 {v31.2s}, [sp], #8
// CHECK: // encoding: [0xff,0x7b,0xdf,0x0c]
// CHECK: ld1 {v0.1d}, [x0], #8
// CHECK: // encoding: [0x00,0x7c,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 1-element structures from two consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld1 {v0.16b, v1.16b}, [x0], x1
ld1 {v15.8h, v16.8h}, [x15], x2
ld1 {v31.4s, v0.4s}, [sp], #32
ld1 {v0.2d, v1.2d}, [x0], #32
ld1 {v0.8b, v1.8b}, [x0], x2
ld1 {v15.4h, v16.4h}, [x15], x3
ld1 {v31.2s, v0.2s}, [sp], #16
ld1 {v0.1d, v1.1d}, [x0], #16
// CHECK: ld1 {v0.16b, v1.16b}, [x0], x1
// CHECK: // encoding: [0x00,0xa0,0xc1,0x4c]
// CHECK: ld1 {v15.8h, v16.8h}, [x15], x2
// CHECK: // encoding: [0xef,0xa5,0xc2,0x4c]
// CHECK: ld1 {v31.4s, v0.4s}, [sp], #32
// CHECK: // encoding: [0xff,0xab,0xdf,0x4c]
// CHECK: ld1 {v0.2d, v1.2d}, [x0], #32
// CHECK: // encoding: [0x00,0xac,0xdf,0x4c]
// CHECK: ld1 {v0.8b, v1.8b}, [x0], x2
// CHECK: // encoding: [0x00,0xa0,0xc2,0x0c]
// CHECK: ld1 {v15.4h, v16.4h}, [x15], x3
// CHECK: // encoding: [0xef,0xa5,0xc3,0x0c]
// CHECK: ld1 {v31.2s, v0.2s}, [sp], #16
// CHECK: // encoding: [0xff,0xab,0xdf,0x0c]
// CHECK: ld1 {v0.1d, v1.1d}, [x0], #16
// CHECK: // encoding: [0x00,0xac,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 1-element structures from three consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld1 {v0.16b, v1.16b, v2.16b}, [x0], x1
ld1 {v15.8h, v16.8h, v17.8h}, [x15], x2
ld1 {v31.4s, v0.4s, v1.4s}, [sp], #48
ld1 {v0.2d, v1.2d, v2.2d}, [x0], #48
ld1 {v0.8b, v1.8b, v2.8b}, [x0], x2
ld1 {v15.4h, v16.4h, v17.4h}, [x15], x3
ld1 {v31.2s, v0.2s, v1.2s}, [sp], #24
ld1 {v0.1d, v1.1d, v2.1d}, [x0], #24
// CHECK: ld1 {v0.16b, v1.16b, v2.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x60,0xc1,0x4c]
// CHECK: ld1 {v15.8h, v16.8h, v17.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x65,0xc2,0x4c]
// CHECK: ld1 {v31.4s, v0.4s, v1.4s}, [sp], #48
// CHECK: // encoding: [0xff,0x6b,0xdf,0x4c]
// CHECK: ld1 {v0.2d, v1.2d, v2.2d}, [x0], #48
// CHECK: // encoding: [0x00,0x6c,0xdf,0x4c]
// CHECK: ld1 {v0.8b, v1.8b, v2.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x60,0xc2,0x0c]
// CHECK: ld1 {v15.4h, v16.4h, v17.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x65,0xc3,0x0c]
// CHECK: ld1 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: // encoding: [0xff,0x6b,0xdf,0x0c]
// CHECK: ld1 {v0.1d, v1.1d, v2.1d}, [x0], #24
// CHECK: // encoding: [0x00,0x6c,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 1-element structures from four consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
ld1 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
ld1 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
ld1 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
ld1 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
ld1 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
ld1 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
ld1 {v0.1d, v1.1d, v2.1d, v3.1d}, [x0], #32
// CHECK: ld1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x20,0xc1,0x4c]
// CHECK: ld1 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x25,0xc2,0x4c]
// CHECK: ld1 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
// CHECK: // encoding: [0xff,0x2b,0xdf,0x4c]
// CHECK: ld1 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
// CHECK: // encoding: [0x00,0x2c,0xdf,0x4c]
// CHECK: ld1 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
// CHECK: // encoding: [0x00,0x20,0xc3,0x0c]
// CHECK: ld1 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
// CHECK: // encoding: [0xef,0x25,0xc4,0x0c]
// CHECK: ld1 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: // encoding: [0xff,0x2b,0xdf,0x0c]
// CHECK: ld1 {v0.1d, v1.1d, v2.1d, v3.1d}, [x0], #32
// CHECK: // encoding: [0x00,0x2c,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 2-element structures from two consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld2 {v0.16b, v1.16b}, [x0], x1
ld2 {v15.8h, v16.8h}, [x15], x2
ld2 {v31.4s, v0.4s}, [sp], #32
ld2 {v0.2d, v1.2d}, [x0], #32
ld2 {v0.8b, v1.8b}, [x0], x2
ld2 {v15.4h, v16.4h}, [x15], x3
ld2 {v31.2s, v0.2s}, [sp], #16
// CHECK: ld2 {v0.16b, v1.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x80,0xc1,0x4c]
// CHECK: ld2 {v15.8h, v16.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x85,0xc2,0x4c]
// CHECK: ld2 {v31.4s, v0.4s}, [sp], #32
// CHECK: // encoding: [0xff,0x8b,0xdf,0x4c]
// CHECK: ld2 {v0.2d, v1.2d}, [x0], #32
// CHECK: // encoding: [0x00,0x8c,0xdf,0x4c]
// CHECK: ld2 {v0.8b, v1.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x80,0xc2,0x0c]
// CHECK: ld2 {v15.4h, v16.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x85,0xc3,0x0c]
// CHECK: ld2 {v31.2s, v0.2s}, [sp], #16
// CHECK: // encoding: [0xff,0x8b,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 3-element structures from three consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld3 {v0.16b, v1.16b, v2.16b}, [x0], x1
ld3 {v15.8h, v16.8h, v17.8h}, [x15], x2
ld3 {v31.4s, v0.4s, v1.4s}, [sp], #48
ld3 {v0.2d, v1.2d, v2.2d}, [x0], #48
ld3 {v0.8b, v1.8b, v2.8b}, [x0], x2
ld3 {v15.4h, v16.4h, v17.4h}, [x15], x3
ld3 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: ld3 {v0.16b, v1.16b, v2.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x40,0xc1,0x4c]
// CHECK: ld3 {v15.8h, v16.8h, v17.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x45,0xc2,0x4c]
// CHECK: ld3 {v31.4s, v0.4s, v1.4s}, [sp], #48
// CHECK: // encoding: [0xff,0x4b,0xdf,0x4c]
// CHECK: ld3 {v0.2d, v1.2d, v2.2d}, [x0], #48
// CHECK: // encoding: [0x00,0x4c,0xdf,0x4c]
// CHECK: ld3 {v0.8b, v1.8b, v2.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x40,0xc2,0x0c]
// CHECK: ld3 {v15.4h, v16.4h, v17.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x45,0xc3,0x0c]
// CHECK: ld3 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: // encoding: [0xff,0x4b,0xdf,0x0c]
//------------------------------------------------------------------------------
// Load multiple 4-element structures from four consecutive registers
// (post-index)
//------------------------------------------------------------------------------
ld4 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
ld4 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
ld4 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
ld4 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
ld4 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
ld4 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
ld4 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: ld4 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x00,0xc1,0x4c]
// CHECK: ld4 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x05,0xc2,0x4c]
// CHECK: ld4 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
// CHECK: // encoding: [0xff,0x0b,0xdf,0x4c]
// CHECK: ld4 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
// CHECK: // encoding: [0x00,0x0c,0xdf,0x4c]
// CHECK: ld4 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
// CHECK: // encoding: [0x00,0x00,0xc3,0x0c]
// CHECK: ld4 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
// CHECK: // encoding: [0xef,0x05,0xc4,0x0c]
// CHECK: ld4 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: // encoding: [0xff,0x0b,0xdf,0x0c]
//------------------------------------------------------------------------------
// Store multiple 1-element structures from one register (post-index)
//------------------------------------------------------------------------------
st1 {v0.16b}, [x0], x1
st1 {v15.8h}, [x15], x2
st1 {v31.4s}, [sp], #16
st1 {v0.2d}, [x0], #16
st1 {v0.8b}, [x0], x2
st1 {v15.4h}, [x15], x3
st1 {v31.2s}, [sp], #8
st1 {v0.1d}, [x0], #8
// CHECK: st1 {v0.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x70,0x81,0x4c]
// CHECK: st1 {v15.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x75,0x82,0x4c]
// CHECK: st1 {v31.4s}, [sp], #16
// CHECK: // encoding: [0xff,0x7b,0x9f,0x4c]
// CHECK: st1 {v0.2d}, [x0], #16
// CHECK: // encoding: [0x00,0x7c,0x9f,0x4c]
// CHECK: st1 {v0.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x70,0x82,0x0c]
// CHECK: st1 {v15.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x75,0x83,0x0c]
// CHECK: st1 {v31.2s}, [sp], #8
// CHECK: // encoding: [0xff,0x7b,0x9f,0x0c]
// CHECK: st1 {v0.1d}, [x0], #8
// CHECK: // encoding: [0x00,0x7c,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 1-element structures from two consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st1 {v0.16b, v1.16b}, [x0], x1
st1 {v15.8h, v16.8h}, [x15], x2
st1 {v31.4s, v0.4s}, [sp], #32
st1 {v0.2d, v1.2d}, [x0], #32
st1 {v0.8b, v1.8b}, [x0], x2
st1 {v15.4h, v16.4h}, [x15], x3
st1 {v31.2s, v0.2s}, [sp], #16
st1 {v0.1d, v1.1d}, [x0], #16
// CHECK: st1 {v0.16b, v1.16b}, [x0], x1
// CHECK: // encoding: [0x00,0xa0,0x81,0x4c]
// CHECK: st1 {v15.8h, v16.8h}, [x15], x2
// CHECK: // encoding: [0xef,0xa5,0x82,0x4c]
// CHECK: st1 {v31.4s, v0.4s}, [sp], #32
// CHECK: // encoding: [0xff,0xab,0x9f,0x4c]
// CHECK: st1 {v0.2d, v1.2d}, [x0], #32
// CHECK: // encoding: [0x00,0xac,0x9f,0x4c]
// CHECK: st1 {v0.8b, v1.8b}, [x0], x2
// CHECK: // encoding: [0x00,0xa0,0x82,0x0c]
// CHECK: st1 {v15.4h, v16.4h}, [x15], x3
// CHECK: // encoding: [0xef,0xa5,0x83,0x0c]
// CHECK: st1 {v31.2s, v0.2s}, [sp], #16
// CHECK: // encoding: [0xff,0xab,0x9f,0x0c]
// CHECK: st1 {v0.1d, v1.1d}, [x0], #16
// CHECK: // encoding: [0x00,0xac,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 1-element structures from three consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st1 {v0.16b, v1.16b, v2.16b}, [x0], x1
st1 {v15.8h, v16.8h, v17.8h}, [x15], x2
st1 {v31.4s, v0.4s, v1.4s}, [sp], #48
st1 {v0.2d, v1.2d, v2.2d}, [x0], #48
st1 {v0.8b, v1.8b, v2.8b}, [x0], x2
st1 {v15.4h, v16.4h, v17.4h}, [x15], x3
st1 {v31.2s, v0.2s, v1.2s}, [sp], #24
st1 {v0.1d, v1.1d, v2.1d}, [x0], #24
// CHECK: st1 {v0.16b, v1.16b, v2.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x60,0x81,0x4c]
// CHECK: st1 {v15.8h, v16.8h, v17.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x65,0x82,0x4c]
// CHECK: st1 {v31.4s, v0.4s, v1.4s}, [sp], #48
// CHECK: // encoding: [0xff,0x6b,0x9f,0x4c]
// CHECK: st1 {v0.2d, v1.2d, v2.2d}, [x0], #48
// CHECK: // encoding: [0x00,0x6c,0x9f,0x4c]
// CHECK: st1 {v0.8b, v1.8b, v2.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x60,0x82,0x0c]
// CHECK: st1 {v15.4h, v16.4h, v17.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x65,0x83,0x0c]
// CHECK: st1 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: // encoding: [0xff,0x6b,0x9f,0x0c]
// CHECK: st1 {v0.1d, v1.1d, v2.1d}, [x0], #24
// CHECK: // encoding: [0x00,0x6c,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 1-element structures from four consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
st1 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
st1 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
st1 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
st1 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
st1 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
st1 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
st1 {v0.1d, v1.1d, v2.1d, v3.1d}, [x0], #32
// CHECK: st1 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x20,0x81,0x4c]
// CHECK: st1 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x25,0x82,0x4c]
// CHECK: st1 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
// CHECK: // encoding: [0xff,0x2b,0x9f,0x4c]
// CHECK: st1 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
// CHECK: // encoding: [0x00,0x2c,0x9f,0x4c]
// CHECK: st1 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
// CHECK: // encoding: [0x00,0x20,0x83,0x0c]
// CHECK: st1 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
// CHECK: // encoding: [0xef,0x25,0x84,0x0c]
// CHECK: st1 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: // encoding: [0xff,0x2b,0x9f,0x0c]
// CHECK: st1 {v0.1d, v1.1d, v2.1d, v3.1d}, [x0], #32
// CHECK: // encoding: [0x00,0x2c,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 2-element structures from two consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st2 {v0.16b, v1.16b}, [x0], x1
st2 {v15.8h, v16.8h}, [x15], x2
st2 {v31.4s, v0.4s}, [sp], #32
st2 {v0.2d, v1.2d}, [x0], #32
st2 {v0.8b, v1.8b}, [x0], x2
st2 {v15.4h, v16.4h}, [x15], x3
st2 {v31.2s, v0.2s}, [sp], #16
// CHECK: st2 {v0.16b, v1.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x80,0x81,0x4c]
// CHECK: st2 {v15.8h, v16.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x85,0x82,0x4c]
// CHECK: st2 {v31.4s, v0.4s}, [sp], #32
// CHECK: // encoding: [0xff,0x8b,0x9f,0x4c]
// CHECK: st2 {v0.2d, v1.2d}, [x0], #32
// CHECK: // encoding: [0x00,0x8c,0x9f,0x4c]
// CHECK: st2 {v0.8b, v1.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x80,0x82,0x0c]
// CHECK: st2 {v15.4h, v16.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x85,0x83,0x0c]
// CHECK: st2 {v31.2s, v0.2s}, [sp], #16
// CHECK: // encoding: [0xff,0x8b,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 3-element structures from three consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st3 {v0.16b, v1.16b, v2.16b}, [x0], x1
st3 {v15.8h, v16.8h, v17.8h}, [x15], x2
st3 {v31.4s, v0.4s, v1.4s}, [sp], #48
st3 {v0.2d, v1.2d, v2.2d}, [x0], #48
st3 {v0.8b, v1.8b, v2.8b}, [x0], x2
st3 {v15.4h, v16.4h, v17.4h}, [x15], x3
st3 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: st3 {v0.16b, v1.16b, v2.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x40,0x81,0x4c]
// CHECK: st3 {v15.8h, v16.8h, v17.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x45,0x82,0x4c]
// CHECK: st3 {v31.4s, v0.4s, v1.4s}, [sp], #48
// CHECK: // encoding: [0xff,0x4b,0x9f,0x4c]
// CHECK: st3 {v0.2d, v1.2d, v2.2d}, [x0], #48
// CHECK: // encoding: [0x00,0x4c,0x9f,0x4c]
// CHECK: st3 {v0.8b, v1.8b, v2.8b}, [x0], x2
// CHECK: // encoding: [0x00,0x40,0x82,0x0c]
// CHECK: st3 {v15.4h, v16.4h, v17.4h}, [x15], x3
// CHECK: // encoding: [0xef,0x45,0x83,0x0c]
// CHECK: st3 {v31.2s, v0.2s, v1.2s}, [sp], #24
// CHECK: // encoding: [0xff,0x4b,0x9f,0x0c]
//------------------------------------------------------------------------------
// Store multiple 4-element structures from four consecutive registers
// (post-index)
//------------------------------------------------------------------------------
st4 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
st4 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
st4 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
st4 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
st4 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
st4 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
st4 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: st4 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0], x1
// CHECK: // encoding: [0x00,0x00,0x81,0x4c]
// CHECK: st4 {v15.8h, v16.8h, v17.8h, v18.8h}, [x15], x2
// CHECK: // encoding: [0xef,0x05,0x82,0x4c]
// CHECK: st4 {v31.4s, v0.4s, v1.4s, v2.4s}, [sp], #64
// CHECK: // encoding: [0xff,0x0b,0x9f,0x4c]
// CHECK: st4 {v0.2d, v1.2d, v2.2d, v3.2d}, [x0], #64
// CHECK: // encoding: [0x00,0x0c,0x9f,0x4c]
// CHECK: st4 {v0.8b, v1.8b, v2.8b, v3.8b}, [x0], x3
// CHECK: // encoding: [0x00,0x00,0x83,0x0c]
// CHECK: st4 {v15.4h, v16.4h, v17.4h, v18.4h}, [x15], x4
// CHECK: // encoding: [0xef,0x05,0x84,0x0c]
// CHECK: st4 {v31.2s, v0.2s, v1.2s, v2.2s}, [sp], #32
// CHECK: // encoding: [0xff,0x0b,0x9f,0x0c]
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