[ValueTypes] Add MVTs for v256i16 and v256f16

[frasercrmck]

Summary

This patch adds the two MVTs to fix a legalizer crash when using vector
shuffles of <256 x i16> and <128 x i16> on RISC-V. The legalizer can't
promote the operand of v256i32 = any_extend_vector_inreg v128i16.

[craig.topper]

This does feel like an imbalance in the legal RISCV vector types. Is it really worth adding another legalization case rather than just adding more simple vector types or making v256i32 illegal?

[frasercrmck]

In D101769#2733902, @craig.topper wrote:

This does feel like an imbalance in the legal RISCV vector types. Is it really worth adding another legalization case rather than just adding more simple vector types or making v256i32 illegal?

Yeah it's definitely an imbalance. I've been thinking that we need to round out the legal RVV vector types to an agreed-upon max vector length, like 512 or 1024 bytes.

But then again this is a crash in LLVM where there shouldn't be one, so I was kind of assuming that we'd do both. The downside, though, is that we might not have enough test cases to prevent regressions in this legalizer case.

If I had to choose one, I'd add more MVTs up to 512B/1024B depending on what people generally see as a useful maximum. I'm willing to go with the majority.

[RKSimon]

TBH I think extending the MVT simple types list would be easier.

[frasercrmck]

Okay, sounds like that's the way to go, thanks. It's a shame we don't have a way of testing the various legalizers without a suitable target.

[frasercrmck]

• add v256i16 and v256f16

[craig.topper]

llvm/include/llvm/CodeGen/ValueTypes.td

185

Should we add blank lines between different element widths here too?

[frasercrmck]

• add blank lines between scalable-vector elt tys

llvm/include/llvm/CodeGen/ValueTypes.td

185

Ah yeah I missed that one, thanks!

[craig.topper]

LGTM

[RKSimon]

LGTM - cheers

llvm/include/llvm/CodeGen/ValueTypes.td

 def v2i16   : ValueType<32,   36>;  //   2 x i16 vector value
 def v3i16   : ValueType<48,   37>;  //   3 x i16 vector value
 def v4i16   : ValueType<64,   38>;  //   4 x i16 vector value
 def v8i16   : ValueType<128,  39>;  //   8 x i16 vector value
 def v16i16  : ValueType<256,  40>;  //  16 x i16 vector value
 def v32i16  : ValueType<512,  41>;  //  32 x i16 vector value
 def v64i16  : ValueType<1024, 42>;  //  64 x i16 vector value
 def v128i16 : ValueType<2048, 43>;  // 128 x i16 vector value
+def v256i16 : ValueType<4096, 44>;  // 256 x i16 vector value
 
-def v1i32    : ValueType<32,    44>;  //    1 x i32 vector value
-def v2i32    : ValueType<64,    45>;  //    2 x i32 vector value
-def v3i32    : ValueType<96,    46>;  //    3 x i32 vector value
-def v4i32    : ValueType<128,   47>;  //    4 x i32 vector value
-def v5i32    : ValueType<160,   48>;  //    5 x i32 vector value
-def v8i32    : ValueType<256,   49>;  //    8 x i32 vector value
-def v16i32   : ValueType<512,   50>;  //   16 x i32 vector value
-def v32i32   : ValueType<1024,  51>;  //   32 x i32 vector value
-def v64i32   : ValueType<2048,  52>;  //   64 x i32 vector value
-def v128i32  : ValueType<4096,  53>;  //  128 x i32 vector value
-def v256i32  : ValueType<8192,  54>;  //  256 x i32 vector value
-def v512i32  : ValueType<16384, 55>;  //  512 x i32 vector value
-def v1024i32 : ValueType<32768, 56>;  // 1024 x i32 vector value
-def v2048i32 : ValueType<65536, 57>;  // 2048 x i32 vector value
-
-def v1i64   : ValueType<64,    58>;  //   1 x i64 vector value
-def v2i64   : ValueType<128,   59>;  //   2 x i64 vector value
-def v4i64   : ValueType<256,   60>;  //   4 x i64 vector value
-def v8i64   : ValueType<512,   61>;  //   8 x i64 vector value
-def v16i64  : ValueType<1024,  62>;  //  16 x i64 vector value
-def v32i64  : ValueType<2048,  63>;  //  32 x i64 vector value
-def v64i64  : ValueType<4096,  64>;  //  64 x i64 vector value
-def v128i64 : ValueType<8192,  65>;  // 128 x i64 vector value
-def v256i64 : ValueType<16384, 66>;  // 256 x i64 vector value
-
-def v1i128 : ValueType<128, 67>;  //  1 x i128 vector value
-
-def v1f16    : ValueType<16,     68>;  //    1 x f16 vector value
-def v2f16    : ValueType<32,     69>;  //    2 x f16 vector value
-def v3f16    : ValueType<48,     70>;  //    3 x f16 vector value
-def v4f16    : ValueType<64,     71>;  //    4 x f16 vector value
-def v8f16    : ValueType<128,    72>;  //    8 x f16 vector value
-def v16f16   : ValueType<256,    73>;  //   16 x f16 vector value
-def v32f16   : ValueType<512,    74>;  //   32 x f16 vector value
-def v64f16   : ValueType<1024,   75>;  //   64 x f16 vector value
-def v128f16  : ValueType<2048,   76>;  //  128 x f16 vector value
-def v2bf16   : ValueType<32,     77>;  //    2 x bf16 vector value
-def v3bf16   : ValueType<48,     78>;  //    3 x bf16 vector value
-def v4bf16   : ValueType<64,     79>;  //    4 x bf16 vector value
-def v8bf16   : ValueType<128,    80>;  //    8 x bf16 vector value
-def v16bf16  : ValueType<256,    81>;  //   16 x bf16 vector value
-def v32bf16  : ValueType<512,    82>;  //   32 x bf16 vector value
-def v64bf16  : ValueType<1024,   83>;  //   64 x bf16 vector value
-def v128bf16 : ValueType<2048,   84>;  //  128 x bf16 vector value
-def v1f32    : ValueType<32,     85>;  //    1 x f32 vector value
-def v2f32    : ValueType<64,     86>;  //    2 x f32 vector value
-def v3f32    : ValueType<96,     87>;  //    3 x f32 vector value
-def v4f32    : ValueType<128,    88>;  //    4 x f32 vector value
-def v5f32    : ValueType<160,    89>;  //    5 x f32 vector value
-def v8f32    : ValueType<256,    90>;  //    8 x f32 vector value
-def v16f32   : ValueType<512,    91>;  //   16 x f32 vector value
-def v32f32   : ValueType<1024,   92>;  //   32 x f32 vector value
-def v64f32   : ValueType<2048,   93>;  //   64 x f32 vector value
-def v128f32  : ValueType<4096,   94>;  //  128 x f32 vector value
-def v256f32  : ValueType<8192,   95>;  //  256 x f32 vector value
-def v512f32  : ValueType<16384,  96>;  //  512 x f32 vector value
-def v1024f32 : ValueType<32768,  97>;  // 1024 x f32 vector value
-def v2048f32 : ValueType<65536,  98>;  // 2048 x f32 vector value
-def v1f64    : ValueType<64,     99>;  //    1 x f64 vector value
-def v2f64    : ValueType<128,   100>;  //    2 x f64 vector value
-def v4f64    : ValueType<256,   101>;  //    4 x f64 vector value
-def v8f64    : ValueType<512,   102>;  //    8 x f64 vector value
-def v16f64   : ValueType<1024,  103>;  //   16 x f64 vector value
-def v32f64   : ValueType<2048,  104>;  //   32 x f64 vector value
-def v64f64   : ValueType<4096,  105>;  //   64 x f64 vector value
-def v128f64  : ValueType<8192,  106>;  //  128 x f64 vector value
-def v256f64  : ValueType<16384, 107>;  //  256 x f64 vector value
-
-def nxv1i1  : ValueType<1,  108>;  // n x  1 x i1  vector value
-def nxv2i1  : ValueType<2,  109>;  // n x  2 x i1  vector value
-def nxv4i1  : ValueType<4,  110>;  // n x  4 x i1  vector value
-def nxv8i1  : ValueType<8,  111>;  // n x  8 x i1  vector value
-def nxv16i1 : ValueType<16, 112>;  // n x 16 x i1  vector value
-def nxv32i1 : ValueType<32, 113>;  // n x 32 x i1  vector value
-def nxv64i1 : ValueType<64, 114>;  // n x 64 x i1  vector value
-
-def nxv1i8  : ValueType<8,   115>;  // n x  1 x i8  vector value
-def nxv2i8  : ValueType<16,  116>;  // n x  2 x i8  vector value
-def nxv4i8  : ValueType<32,  117>;  // n x  4 x i8  vector value
-def nxv8i8  : ValueType<64,  118>;  // n x  8 x i8  vector value
-def nxv16i8 : ValueType<128, 119>;  // n x 16 x i8  vector value
-def nxv32i8 : ValueType<256, 120>;  // n x 32 x i8  vector value
-def nxv64i8 : ValueType<512, 121>;  // n x 64 x i8  vector value
-
-def nxv1i16  : ValueType<16,  122>;  // n x  1 x i16 vector value
-def nxv2i16  : ValueType<32,  123>;  // n x  2 x i16 vector value
-def nxv4i16  : ValueType<64,  124>;  // n x  4 x i16 vector value
-def nxv8i16  : ValueType<128, 125>;  // n x  8 x i16 vector value
-def nxv16i16 : ValueType<256, 126>;  // n x 16 x i16 vector value
-def nxv32i16 : ValueType<512, 127>;  // n x 32 x i16 vector value
-
-def nxv1i32  : ValueType<32,   128>;  // n x  1 x i32 vector value
-def nxv2i32  : ValueType<64,   129>;  // n x  2 x i32 vector value
-def nxv4i32  : ValueType<128,  130>;  // n x  4 x i32 vector value
-def nxv8i32  : ValueType<256,  131>;  // n x  8 x i32 vector value
-def nxv16i32 : ValueType<512,  132>;  // n x 16 x i32 vector value
-def nxv32i32 : ValueType<1024, 133>;  // n x 32 x i32 vector value
-
-def nxv1i64  : ValueType<64,   134>;  // n x  1 x i64 vector value
-def nxv2i64  : ValueType<128,  135>;  // n x  2 x i64 vector value
-def nxv4i64  : ValueType<256,  136>;  // n x  4 x i64 vector value
-def nxv8i64  : ValueType<512,  137>;  // n x  8 x i64 vector value
-def nxv16i64 : ValueType<1024, 138>;  // n x 16 x i64 vector value
-def nxv32i64 : ValueType<2048, 139>;  // n x 32 x i64 vector value
-
-def nxv1f16  : ValueType<16,  140>;  // n x  1 x  f16 vector value
-def nxv2f16  : ValueType<32,  141>;  // n x  2 x  f16 vector value
-def nxv4f16  : ValueType<64,  142>;  // n x  4 x  f16 vector value
-def nxv8f16  : ValueType<128, 143>;  // n x  8 x  f16 vector value
-def nxv16f16 : ValueType<256, 144>;  // n x 16 x  f16 vector value
-def nxv32f16 : ValueType<512, 145>;  // n x 32 x  f16 vector value
-def nxv1bf16 : ValueType<16,  146>;  // n x  1 x bf16 vector value
-def nxv2bf16 : ValueType<32,  147>;  // n x  2 x bf16 vector value
-def nxv4bf16 : ValueType<64,  148>;  // n x  4 x bf16 vector value
-def nxv8bf16 : ValueType<128, 149>;  // n x  8 x bf16 vector value
-def nxv1f32  : ValueType<32,  150>;  // n x  1 x  f32 vector value
-def nxv2f32  : ValueType<64,  151>;  // n x  2 x  f32 vector value
-def nxv4f32  : ValueType<128, 152>;  // n x  4 x  f32 vector value
-def nxv8f32  : ValueType<256, 153>;  // n x  8 x  f32 vector value
-def nxv16f32 : ValueType<512, 154>;  // n x 16 x  f32 vector value
-def nxv1f64  : ValueType<64,  155>;  // n x  1 x  f64 vector value
-def nxv2f64  : ValueType<128, 156>;  // n x  2 x  f64 vector value
-def nxv4f64  : ValueType<256, 157>;  // n x  4 x  f64 vector value
-def nxv8f64  : ValueType<512, 158>;  // n x  8 x  f64 vector value
-
-def x86mmx    : ValueType<64,   159>;  // X86 MMX value
-def FlagVT    : ValueType<0,    160>;  // Pre-RA sched glue
-def isVoid    : ValueType<0,    161>;  // Produces no value
-def untyped   : ValueType<8,    162>;  // Produces an untyped value
-def funcref   : ValueType<0,    163>;  // WebAssembly's funcref type
-def externref : ValueType<0,    164>;  // WebAssembly's externref type
-def x86amx    : ValueType<8192, 165>;  // X86 AMX value
+def v1i32    : ValueType<32,    45>;  //    1 x i32 vector value
+def v2i32    : ValueType<64,    46>;  //    2 x i32 vector value
+def v3i32    : ValueType<96,    47>;  //    3 x i32 vector value
+def v4i32    : ValueType<128,   48>;  //    4 x i32 vector value
+def v5i32    : ValueType<160,   49>;  //    5 x i32 vector value
+def v8i32    : ValueType<256,   50>;  //    8 x i32 vector value
+def v16i32   : ValueType<512,   51>;  //   16 x i32 vector value
+def v32i32   : ValueType<1024,  52>;  //   32 x i32 vector value
+def v64i32   : ValueType<2048,  53>;  //   64 x i32 vector value
+def v128i32  : ValueType<4096,  54>;  //  128 x i32 vector value
+def v256i32  : ValueType<8192,  55>;  //  256 x i32 vector value
+def v512i32  : ValueType<16384, 56>;  //  512 x i32 vector value
+def v1024i32 : ValueType<32768, 57>;  // 1024 x i32 vector value
+def v2048i32 : ValueType<65536, 58>;  // 2048 x i32 vector value
+
+def v1i64   : ValueType<64,    59>;  //   1 x i64 vector value
+def v2i64   : ValueType<128,   60>;  //   2 x i64 vector value
+def v4i64   : ValueType<256,   61>;  //   4 x i64 vector value
+def v8i64   : ValueType<512,   62>;  //   8 x i64 vector value
+def v16i64  : ValueType<1024,  63>;  //  16 x i64 vector value
+def v32i64  : ValueType<2048,  64>;  //  32 x i64 vector value
+def v64i64  : ValueType<4096,  65>;  //  64 x i64 vector value
+def v128i64 : ValueType<8192,  66>;  // 128 x i64 vector value
+def v256i64 : ValueType<16384, 67>;  // 256 x i64 vector value
+
+def v1i128 : ValueType<128, 68>;  //  1 x i128 vector value
+
+def v1f16    : ValueType<16,     69>;  //    1 x f16 vector value
+def v2f16    : ValueType<32,     70>;  //    2 x f16 vector value
+def v3f16    : ValueType<48,     71>;  //    3 x f16 vector value
+def v4f16    : ValueType<64,     72>;  //    4 x f16 vector value
+def v8f16    : ValueType<128,    73>;  //    8 x f16 vector value
+def v16f16   : ValueType<256,    74>;  //   16 x f16 vector value
+def v32f16   : ValueType<512,    75>;  //   32 x f16 vector value
+def v64f16   : ValueType<1024,   76>;  //   64 x f16 vector value
+def v128f16  : ValueType<2048,   77>;  //  128 x f16 vector value
+def v256f16  : ValueType<4096,   78>;  //  256 x f16 vector value
+
+def v2bf16   : ValueType<32,     79>;  //    2 x bf16 vector value
+def v3bf16   : ValueType<48,     80>;  //    3 x bf16 vector value
+def v4bf16   : ValueType<64,     81>;  //    4 x bf16 vector value
+def v8bf16   : ValueType<128,    82>;  //    8 x bf16 vector value
+def v16bf16  : ValueType<256,    83>;  //   16 x bf16 vector value
+def v32bf16  : ValueType<512,    84>;  //   32 x bf16 vector value
+def v64bf16  : ValueType<1024,   85>;  //   64 x bf16 vector value
+def v128bf16 : ValueType<2048,   86>;  //  128 x bf16 vector value
+
+def v1f32    : ValueType<32,     87>;  //    1 x f32 vector value
+def v2f32    : ValueType<64,     88>;  //    2 x f32 vector value
+def v3f32    : ValueType<96,     89>;  //    3 x f32 vector value
+def v4f32    : ValueType<128,    90>;  //    4 x f32 vector value
+def v5f32    : ValueType<160,    91>;  //    5 x f32 vector value
+def v8f32    : ValueType<256,    92>;  //    8 x f32 vector value
+def v16f32   : ValueType<512,    93>;  //   16 x f32 vector value
+def v32f32   : ValueType<1024,   94>;  //   32 x f32 vector value
+def v64f32   : ValueType<2048,   95>;  //   64 x f32 vector value
+def v128f32  : ValueType<4096,   96>;  //  128 x f32 vector value
+def v256f32  : ValueType<8192,   97>;  //  256 x f32 vector value
+def v512f32  : ValueType<16384,  98>;  //  512 x f32 vector value
+def v1024f32 : ValueType<32768,  99>;  // 1024 x f32 vector value
+def v2048f32 : ValueType<65536, 100>;  // 2048 x f32 vector value
+
+def v1f64    : ValueType<64,    101>;  //    1 x f64 vector value
+def v2f64    : ValueType<128,   102>;  //    2 x f64 vector value
+def v4f64    : ValueType<256,   103>;  //    4 x f64 vector value
+def v8f64    : ValueType<512,   104>;  //    8 x f64 vector value
+def v16f64   : ValueType<1024,  105>;  //   16 x f64 vector value
+def v32f64   : ValueType<2048,  106>;  //   32 x f64 vector value
+def v64f64   : ValueType<4096,  107>;  //   64 x f64 vector value
+def v128f64  : ValueType<8192,  108>;  //  128 x f64 vector value
+def v256f64  : ValueType<16384, 109>;  //  256 x f64 vector value
+
+def nxv1i1  : ValueType<1,  110>;  // n x  1 x i1  vector value
+def nxv2i1  : ValueType<2,  111>;  // n x  2 x i1  vector value
+def nxv4i1  : ValueType<4,  112>;  // n x  4 x i1  vector value
+def nxv8i1  : ValueType<8,  113>;  // n x  8 x i1  vector value
+def nxv16i1 : ValueType<16, 114>;  // n x 16 x i1  vector value
+def nxv32i1 : ValueType<32, 115>;  // n x 32 x i1  vector value
+def nxv64i1 : ValueType<64, 116>;  // n x 64 x i1  vector value
+
+def nxv1i8  : ValueType<8,   117>;  // n x  1 x i8  vector value
+def nxv2i8  : ValueType<16,  118>;  // n x  2 x i8  vector value
+def nxv4i8  : ValueType<32,  119>;  // n x  4 x i8  vector value
+def nxv8i8  : ValueType<64,  120>;  // n x  8 x i8  vector value
+def nxv16i8 : ValueType<128, 121>;  // n x 16 x i8  vector value
+def nxv32i8 : ValueType<256, 122>;  // n x 32 x i8  vector value
+def nxv64i8 : ValueType<512, 123>;  // n x 64 x i8  vector value
+
+def nxv1i16  : ValueType<16,  124>;  // n x  1 x i16 vector value
+def nxv2i16  : ValueType<32,  125>;  // n x  2 x i16 vector value
+def nxv4i16  : ValueType<64,  126>;  // n x  4 x i16 vector value
+def nxv8i16  : ValueType<128, 127>;  // n x  8 x i16 vector value
+def nxv16i16 : ValueType<256, 128>;  // n x 16 x i16 vector value
+def nxv32i16 : ValueType<512, 129>;  // n x 32 x i16 vector value
+
+def nxv1i32  : ValueType<32,   130>;  // n x  1 x i32 vector value
+def nxv2i32  : ValueType<64,   131>;  // n x  2 x i32 vector value
+def nxv4i32  : ValueType<128,  132>;  // n x  4 x i32 vector value
+def nxv8i32  : ValueType<256,  133>;  // n x  8 x i32 vector value
+def nxv16i32 : ValueType<512,  134>;  // n x 16 x i32 vector value
+def nxv32i32 : ValueType<1024, 135>;  // n x 32 x i32 vector value
+
+def nxv1i64  : ValueType<64,   136>;  // n x  1 x i64 vector value
+def nxv2i64  : ValueType<128,  137>;  // n x  2 x i64 vector value
+def nxv4i64  : ValueType<256,  138>;  // n x  4 x i64 vector value
+def nxv8i64  : ValueType<512,  139>;  // n x  8 x i64 vector value
+def nxv16i64 : ValueType<1024, 140>;  // n x 16 x i64 vector value
+def nxv32i64 : ValueType<2048, 141>;  // n x 32 x i64 vector value
+
+def nxv1f16  : ValueType<16,  142>;  // n x  1 x  f16 vector value
+def nxv2f16  : ValueType<32,  143>;  // n x  2 x  f16 vector value
+def nxv4f16  : ValueType<64,  144>;  // n x  4 x  f16 vector value
+def nxv8f16  : ValueType<128, 145>;  // n x  8 x  f16 vector value
+def nxv16f16 : ValueType<256, 146>;  // n x 16 x  f16 vector value
+def nxv32f16 : ValueType<512, 147>;  // n x 32 x  f16 vector value
+
+def nxv1bf16 : ValueType<16,  148>;  // n x  1 x bf16 vector value
+def nxv2bf16 : ValueType<32,  149>;  // n x  2 x bf16 vector value
+def nxv4bf16 : ValueType<64,  150>;  // n x  4 x bf16 vector value
+def nxv8bf16 : ValueType<128, 151>;  // n x  8 x bf16 vector value
+
+def nxv1f32  : ValueType<32,  152>;  // n x  1 x  f32 vector value
+def nxv2f32  : ValueType<64,  153>;  // n x  2 x  f32 vector value
+def nxv4f32  : ValueType<128, 154>;  // n x  4 x  f32 vector value
+def nxv8f32  : ValueType<256, 155>;  // n x  8 x  f32 vector value
+def nxv16f32 : ValueType<512, 156>;  // n x 16 x  f32 vector value
+
+def nxv1f64  : ValueType<64,  157>;  // n x  1 x  f64 vector value
+def nxv2f64  : ValueType<128, 158>;  // n x  2 x  f64 vector value
+def nxv4f64  : ValueType<256, 159>;  // n x  4 x  f64 vector value
+def nxv8f64  : ValueType<512, 160>;  // n x  8 x  f64 vector value
+
+def x86mmx    : ValueType<64,   161>;  // X86 MMX value
+def FlagVT    : ValueType<0,    162>;  // Pre-RA sched glue
+def isVoid    : ValueType<0,    163>;  // Produces no value
+def untyped   : ValueType<8,    164>;  // Produces an untyped value
+def funcref   : ValueType<0,    165>;  // WebAssembly's funcref type
+def externref : ValueType<0,    166>;  // WebAssembly's externref type
+def x86amx    : ValueType<8192, 167>;  // X86 AMX value
 
 
 def token      : ValueType<0, 248>;  // TokenTy
 def MetadataVT : ValueType<0, 249>;  // Metadata
 
 // Pseudo valuetype mapped to the current pointer size to any address space.
 // Should only be used in TableGen.
 def iPTRAny    : ValueType<0, 250>;

llvm/include/llvm/Support/MachineValueType.h

namespace llvm {
   public:
     enum SimpleValueType : uint8_t {
       // Simple value types that aren't explicitly part of this enumeration
       // are considered extended value types.
       INVALID_SIMPLE_VALUE_TYPE = 0,
 
       // If you change this numbering, you must change the values in
       // ValueTypes.td as well!
       Other          =   1,   // This is a non-standard value
       i1             =   2,   // This is a 1 bit integer value
       i8             =   3,   // This is an 8 bit integer value
       i16            =   4,   // This is a 16 bit integer value
       i32            =   5,   // This is a 32 bit integer value
       i64            =   6,   // This is a 64 bit integer value
       i128           =   7,   // This is a 128 bit integer value
 
       FIRST_INTEGER_VALUETYPE = i1,
       LAST_INTEGER_VALUETYPE  = i128,
 
       bf16           =   8,   // This is a 16 bit brain floating point value
       f16            =   9,   // This is a 16 bit floating point value
       f32            =  10,   // This is a 32 bit floating point value
       f64            =  11,   // This is a 64 bit floating point value
       f80            =  12,   // This is a 80 bit floating point value
       f128           =  13,   // This is a 128 bit floating point value
       ppcf128        =  14,   // This is a PPC 128-bit floating point value
 
       FIRST_FP_VALUETYPE = bf16,
       LAST_FP_VALUETYPE  = ppcf128,
 
       v1i1           =  15,   //    1 x i1
       v2i1           =  16,   //    2 x i1
       v4i1           =  17,   //    4 x i1
       v8i1           =  18,   //    8 x i1
       v16i1          =  19,   //   16 x i1
       v32i1          =  20,   //   32 x i1
       v64i1          =  21,   //   64 x i1
enum SimpleValueType : uint8_t {
       v2i16          =  36,   //   2 x i16
       v3i16          =  37,   //   3 x i16
       v4i16          =  38,   //   4 x i16
       v8i16          =  39,   //   8 x i16
       v16i16         =  40,   //  16 x i16
       v32i16         =  41,   //  32 x i16
       v64i16         =  42,   //  64 x i16
       v128i16        =  43,   // 128 x i16
+      v256i16        =  44,   // 256 x i16
 
-      v1i32          =  44,   //    1 x i32
-      v2i32          =  45,   //    2 x i32
-      v3i32          =  46,   //    3 x i32
-      v4i32          =  47,   //    4 x i32
-      v5i32          =  48,   //    5 x i32
-      v8i32          =  49,   //    8 x i32
-      v16i32         =  50,   //   16 x i32
-      v32i32         =  51,   //   32 x i32
-      v64i32         =  52,   //   64 x i32
-      v128i32        =  53,   //  128 x i32
-      v256i32        =  54,   //  256 x i32
-      v512i32        =  55,   //  512 x i32
-      v1024i32       =  56,   // 1024 x i32
-      v2048i32       =  57,   // 2048 x i32
-
-      v1i64          =  58,   //   1 x i64
-      v2i64          =  59,   //   2 x i64
-      v4i64          =  60,   //   4 x i64
-      v8i64          =  61,   //   8 x i64
-      v16i64         =  62,   //  16 x i64
-      v32i64         =  63,   //  32 x i64
-      v64i64         =  64,   //  64 x i64
-      v128i64        =  65,   // 128 x i64
-      v256i64        =  66,   // 256 x i64
+      v1i32          =  45,   //    1 x i32
+      v2i32          =  46,   //    2 x i32
+      v3i32          =  47,   //    3 x i32
+      v4i32          =  48,   //    4 x i32
+      v5i32          =  49,   //    5 x i32
+      v8i32          =  50,   //    8 x i32
+      v16i32         =  51,   //   16 x i32
+      v32i32         =  52,   //   32 x i32
+      v64i32         =  53,   //   64 x i32
+      v128i32        =  54,   //  128 x i32
+      v256i32        =  55,   //  256 x i32
+      v512i32        =  56,   //  512 x i32
+      v1024i32       =  57,   // 1024 x i32
+      v2048i32       =  58,   // 2048 x i32
+
+      v1i64          =  59,   //   1 x i64
+      v2i64          =  60,   //   2 x i64
+      v4i64          =  61,   //   4 x i64
+      v8i64          =  62,   //   8 x i64
+      v16i64         =  63,   //  16 x i64
+      v32i64         =  64,   //  32 x i64
+      v64i64         =  65,   //  64 x i64
+      v128i64        =  66,   // 128 x i64
+      v256i64        =  67,   // 256 x i64
 
-      v1i128         =  67,   //  1 x i128
+      v1i128         =  68,   //  1 x i128
 
       FIRST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE = v1i1,
       LAST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE = v1i128,
 
-      v1f16          =  68,   //    1 x f16
-      v2f16          =  69,   //    2 x f16
-      v3f16          =  70,   //    3 x f16
-      v4f16          =  71,   //    4 x f16
-      v8f16          =  72,   //    8 x f16
-      v16f16         =  73,   //   16 x f16
-      v32f16         =  74,   //   32 x f16
-      v64f16         =  75,   //   64 x f16
-      v128f16        =  76,   //  128 x f16
-
-      v2bf16         =  77,   //    2 x bf16
-      v3bf16         =  78,   //    3 x bf16
-      v4bf16         =  79,   //    4 x bf16
-      v8bf16         =  80,   //    8 x bf16
-      v16bf16        =  81,   //   16 x bf16
-      v32bf16        =  82,   //   32 x bf16
-      v64bf16        =  83,   //   64 x bf16
-      v128bf16       =  84,   //  128 x bf16
-
-      v1f32          =  85,   //    1 x f32
-      v2f32          =  86,   //    2 x f32
-      v3f32          =  87,   //    3 x f32
-      v4f32          =  88,   //    4 x f32
-      v5f32          =  89,   //    5 x f32
-      v8f32          =  90,   //    8 x f32
-      v16f32         =  91,   //   16 x f32
-      v32f32         =  92,   //   32 x f32
-      v64f32         =  93,   //   64 x f32
-      v128f32        =  94,   //  128 x f32
-      v256f32        =  95,   //  256 x f32
-      v512f32        =  96,   //  512 x f32
-      v1024f32       =  97,   // 1024 x f32
-      v2048f32       =  98,   // 2048 x f32
-
-      v1f64          =  99,   //    1 x f64
-      v2f64          = 100,   //    2 x f64
-      v4f64          = 101,   //    4 x f64
-      v8f64          = 102,   //    8 x f64
-      v16f64         = 103,   //   16 x f64
-      v32f64         = 104,   //   32 x f64
-      v64f64         = 105,   //   64 x f64
-      v128f64        = 106,   //  128 x f64
-      v256f64        = 107,   //  256 x f64
+      v1f16          =  69,   //    1 x f16
+      v2f16          =  70,   //    2 x f16
+      v3f16          =  71,   //    3 x f16
+      v4f16          =  72,   //    4 x f16
+      v8f16          =  73,   //    8 x f16
+      v16f16         =  74,   //   16 x f16
+      v32f16         =  75,   //   32 x f16
+      v64f16         =  76,   //   64 x f16
+      v128f16        =  77,   //  128 x f16
+      v256f16        =  78,   //  256 x f16
+
+      v2bf16         =  79,   //    2 x bf16
+      v3bf16         =  80,   //    3 x bf16
+      v4bf16         =  81,   //    4 x bf16
+      v8bf16         =  82,   //    8 x bf16
+      v16bf16        =  83,   //   16 x bf16
+      v32bf16        =  84,   //   32 x bf16
+      v64bf16        =  85,   //   64 x bf16
+      v128bf16       =  86,   //  128 x bf16
+
+      v1f32          =  87,   //    1 x f32
+      v2f32          =  88,   //    2 x f32
+      v3f32          =  89,   //    3 x f32
+      v4f32          =  90,   //    4 x f32
+      v5f32          =  91,   //    5 x f32
+      v8f32          =  92,   //    8 x f32
+      v16f32         =  93,   //   16 x f32
+      v32f32         =  94,   //   32 x f32
+      v64f32         =  95,   //   64 x f32
+      v128f32        =  96,   //  128 x f32
+      v256f32        =  97,   //  256 x f32
+      v512f32        =  98,   //  512 x f32
+      v1024f32       =  99,   // 1024 x f32
+      v2048f32       = 100,   // 2048 x f32
+
+      v1f64          = 101,   //    1 x f64
+      v2f64          = 102,   //    2 x f64
+      v4f64          = 103,   //    4 x f64
+      v8f64          = 104,   //    8 x f64
+      v16f64         = 105,   //   16 x f64
+      v32f64         = 106,   //   32 x f64
+      v64f64         = 107,   //   64 x f64
+      v128f64        = 108,   //  128 x f64
+      v256f64        = 109,   //  256 x f64
 
       FIRST_FP_FIXEDLEN_VECTOR_VALUETYPE = v1f16,
       LAST_FP_FIXEDLEN_VECTOR_VALUETYPE = v256f64,
 
       FIRST_FIXEDLEN_VECTOR_VALUETYPE = v1i1,
       LAST_FIXEDLEN_VECTOR_VALUETYPE = v256f64,
 
-      nxv1i1         = 108,   // n x  1 x i1
-      nxv2i1         = 109,   // n x  2 x i1
-      nxv4i1         = 110,   // n x  4 x i1
-      nxv8i1         = 111,   // n x  8 x i1
-      nxv16i1        = 112,   // n x 16 x i1
-      nxv32i1        = 113,   // n x 32 x i1
-      nxv64i1        = 114,   // n x 64 x i1
-
-      nxv1i8         = 115,   // n x  1 x i8
-      nxv2i8         = 116,   // n x  2 x i8
-      nxv4i8         = 117,   // n x  4 x i8
-      nxv8i8         = 118,   // n x  8 x i8
-      nxv16i8        = 119,   // n x 16 x i8
-      nxv32i8        = 120,   // n x 32 x i8
-      nxv64i8        = 121,   // n x 64 x i8
-
-      nxv1i16        = 122,  // n x  1 x i16
-      nxv2i16        = 123,  // n x  2 x i16
-      nxv4i16        = 124,  // n x  4 x i16
-      nxv8i16        = 125,  // n x  8 x i16
-      nxv16i16       = 126,  // n x 16 x i16
-      nxv32i16       = 127,  // n x 32 x i16
-
-      nxv1i32        = 128,  // n x  1 x i32
-      nxv2i32        = 129,  // n x  2 x i32
-      nxv4i32        = 130,  // n x  4 x i32
-      nxv8i32        = 131,  // n x  8 x i32
-      nxv16i32       = 132,  // n x 16 x i32
-      nxv32i32       = 133,  // n x 32 x i32
-
-      nxv1i64        = 134,  // n x  1 x i64
-      nxv2i64        = 135,  // n x  2 x i64
-      nxv4i64        = 136,  // n x  4 x i64
-      nxv8i64        = 137,  // n x  8 x i64
-      nxv16i64       = 138,  // n x 16 x i64
-      nxv32i64       = 139,  // n x 32 x i64
+      nxv1i1         = 110,   // n x  1 x i1
+      nxv2i1         = 111,   // n x  2 x i1
+      nxv4i1         = 112,   // n x  4 x i1
+      nxv8i1         = 113,   // n x  8 x i1
+      nxv16i1        = 114,   // n x 16 x i1
+      nxv32i1        = 115,   // n x 32 x i1
+      nxv64i1        = 116,   // n x 64 x i1
+
+      nxv1i8         = 117,   // n x  1 x i8
+      nxv2i8         = 118,   // n x  2 x i8
+      nxv4i8         = 119,   // n x  4 x i8
+      nxv8i8         = 120,   // n x  8 x i8
+      nxv16i8        = 121,   // n x 16 x i8
+      nxv32i8        = 122,   // n x 32 x i8
+      nxv64i8        = 123,   // n x 64 x i8
+
+      nxv1i16        = 124,  // n x  1 x i16
+      nxv2i16        = 125,  // n x  2 x i16
+      nxv4i16        = 126,  // n x  4 x i16
+      nxv8i16        = 127,  // n x  8 x i16
+      nxv16i16       = 128,  // n x 16 x i16
+      nxv32i16       = 129,  // n x 32 x i16
+
+      nxv1i32        = 130,  // n x  1 x i32
+      nxv2i32        = 131,  // n x  2 x i32
+      nxv4i32        = 132,  // n x  4 x i32
+      nxv8i32        = 133,  // n x  8 x i32
+      nxv16i32       = 134,  // n x 16 x i32
+      nxv32i32       = 135,  // n x 32 x i32
+
+      nxv1i64        = 136,  // n x  1 x i64
+      nxv2i64        = 137,  // n x  2 x i64
+      nxv4i64        = 138,  // n x  4 x i64
+      nxv8i64        = 139,  // n x  8 x i64
+      nxv16i64       = 140,  // n x 16 x i64
+      nxv32i64       = 141,  // n x 32 x i64
 
       FIRST_INTEGER_SCALABLE_VECTOR_VALUETYPE = nxv1i1,
       LAST_INTEGER_SCALABLE_VECTOR_VALUETYPE = nxv32i64,
 
-      nxv1f16        = 140,  // n x  1 x f16
-      nxv2f16        = 141,  // n x  2 x f16
-      nxv4f16        = 142,  // n x  4 x f16
-      nxv8f16        = 143,  // n x  8 x f16
-      nxv16f16       = 144,  // n x 16 x f16
-      nxv32f16       = 145,  // n x 32 x f16
-
-      nxv1bf16       = 146,  // n x  1 x bf16
-      nxv2bf16       = 147,  // n x  2 x bf16
-      nxv4bf16       = 148,  // n x  4 x bf16
-      nxv8bf16       = 149,  // n x  8 x bf16
-
-      nxv1f32        = 150,  // n x  1 x f32
-      nxv2f32        = 151,  // n x  2 x f32
-      nxv4f32        = 152,  // n x  4 x f32
-      nxv8f32        = 153,  // n x  8 x f32
-      nxv16f32       = 154,  // n x 16 x f32
-
-      nxv1f64        = 155,  // n x  1 x f64
-      nxv2f64        = 156,  // n x  2 x f64
-      nxv4f64        = 157,  // n x  4 x f64
-      nxv8f64        = 158,  // n x  8 x f64
+      nxv1f16        = 142,  // n x  1 x f16
+      nxv2f16        = 143,  // n x  2 x f16
+      nxv4f16        = 144,  // n x  4 x f16
+      nxv8f16        = 145,  // n x  8 x f16
+      nxv16f16       = 146,  // n x 16 x f16
+      nxv32f16       = 147,  // n x 32 x f16
+
+      nxv1bf16       = 148,  // n x  1 x bf16
+      nxv2bf16       = 149,  // n x  2 x bf16
+      nxv4bf16       = 150,  // n x  4 x bf16
+      nxv8bf16       = 151,  // n x  8 x bf16
+
+      nxv1f32        = 152,  // n x  1 x f32
+      nxv2f32        = 153,  // n x  2 x f32
+      nxv4f32        = 154,  // n x  4 x f32
+      nxv8f32        = 155,  // n x  8 x f32
+      nxv16f32       = 156,  // n x 16 x f32
+
+      nxv1f64        = 157,  // n x  1 x f64
+      nxv2f64        = 158,  // n x  2 x f64
+      nxv4f64        = 159,  // n x  4 x f64
+      nxv8f64        = 160,  // n x  8 x f64
 
       FIRST_FP_SCALABLE_VECTOR_VALUETYPE = nxv1f16,
       LAST_FP_SCALABLE_VECTOR_VALUETYPE = nxv8f64,
 
       FIRST_SCALABLE_VECTOR_VALUETYPE = nxv1i1,
       LAST_SCALABLE_VECTOR_VALUETYPE = nxv8f64,
 
       FIRST_VECTOR_VALUETYPE = v1i1,
       LAST_VECTOR_VALUETYPE  = nxv8f64,
 
-      x86mmx         = 159,   // This is an X86 MMX value
+      x86mmx         = 161,   // This is an X86 MMX value
 
-      Glue           = 160,   // This glues nodes together during pre-RA sched
+      Glue           = 162,   // This glues nodes together during pre-RA sched
 
-      isVoid         = 161,   // This has no value
+      isVoid         = 163,   // This has no value
 
-      Untyped        = 162,   // This value takes a register, but has
+      Untyped        = 164,   // This value takes a register, but has
                               // unspecified type.  The register class
                               // will be determined by the opcode.
 
-      funcref        = 163,   // WebAssembly's funcref type
-      externref      = 164,   // WebAssembly's externref type
-      x86amx         = 165,   // This is an X86 AMX value
+      funcref        = 165,   // WebAssembly's funcref type
+      externref      = 166,   // WebAssembly's externref type
+      x86amx         = 167,   // This is an X86 AMX value
 
       FIRST_VALUETYPE =  1,   // This is always the beginning of the list.
-      LAST_VALUETYPE = 166,   // This always remains at the end of the list.
+      LAST_VALUETYPE = 168,   // This always remains at the end of the list.
 
       // This is the current maximum for LAST_VALUETYPE.
       // MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
       // This value must be a multiple of 32.
       MAX_ALLOWED_VALUETYPE = 192,
 
       // A value of type llvm::TokenTy
       token          = 248,
 
       // This is MDNode or MDString.
       Metadata       = 249,
 
       // An int value the size of the pointer of the current
       // target to any address space. This must only be used internal to
       // tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
       iPTRAny        = 250,
 
       // A vector with any length and element size. This is used
       // for intrinsics that have overloadings based on vector types.
       // This is only for tblgen's consumption!
       vAny           = 251,
 
       // Any floating-point or vector floating-point value. This is used
       // for intrinsics that have overloadings based on floating-point types.
       // This is only for tblgen's consumption!
       fAny           = 252,
 
       // An integer or vector integer value of any bit width. This is
       // used for intrinsics that have overloadings based on integer bit widths.
       // This is only for tblgen's consumption!
       iAny           = 253,
 
       // An int value the size of the pointer of the current
       // target.  This should only be used internal to tblgen!
       iPTR           = 254,
 
       // Any type. This is used for intrinsics that have overloadings.
       // This is only for tblgen's consumption!
       Any            = 255
     };
 
     SimpleValueType SimpleTy = INVALID_SIMPLE_VALUE_TYPE;
 
     constexpr MVT() = default;
     constexpr MVT(SimpleValueType SVT) : SimpleTy(SVT) {}
 
     bool operator>(const MVT& S)  const { return SimpleTy >  S.SimpleTy; }
MVT getVectorElementType() const {
       case v2i16:
       case v3i16:
       case v4i16:
       case v8i16:
       case v16i16:
       case v32i16:
       case v64i16:
       case v128i16:
+      case v256i16:
       case nxv1i16:
       case nxv2i16:
       case nxv4i16:
       case nxv8i16:
       case nxv16i16:
       case nxv32i16: return i16;
       case v1i32:
       case v2i32:
MVT getVectorElementType() const {
       case v2f16:
       case v3f16:
       case v4f16:
       case v8f16:
       case v16f16:
       case v32f16:
       case v64f16:
       case v128f16:
+      case v256f16:
       case nxv1f16:
       case nxv2f16:
       case nxv4f16:
       case nxv8f16:
       case nxv16f16:
       case nxv32f16: return f16;
       case v2bf16:
       case v3bf16:
unsigned getVectorNumElements() const {
       case v1024i1:
       case v1024i32:
       case v1024f32: return 1024;
       case v512i1:
       case v512i32:
       case v512f32: return 512;
       case v256i1:
       case v256i8:
+      case v256i16:
+      case v256f16:
       case v256i32:
       case v256i64:
       case v256f32:
       case v256f64: return 256;
       case v128i1:
       case v128i8:
       case v128i16:
       case v128i32:
TypeSize getSizeInBits() const {
       case v128i16:
       case v64i32:
       case v32i64:
       case v128f16:
       case v128bf16:
       case v64f32:
       case v32f64: return TypeSize::Fixed(2048);
       case nxv32i64: return TypeSize::Scalable(2048);
+      case v256i16:
       case v128i32:
       case v64i64:
+      case v256f16:
       case v128f32:
       case v64f64:  return TypeSize::Fixed(4096);
       case v256i32:
       case v128i64:
       case v256f32:
       case x86amx:
       case v128f64:  return TypeSize::Fixed(8192);
       case v512i32:
static MVT getVectorVT(MVT VT, unsigned NumElements) {
         if (NumElements == 2)   return MVT::v2i16;
         if (NumElements == 3)   return MVT::v3i16;
         if (NumElements == 4)   return MVT::v4i16;
         if (NumElements == 8)   return MVT::v8i16;
         if (NumElements == 16)  return MVT::v16i16;
         if (NumElements == 32)  return MVT::v32i16;
         if (NumElements == 64)  return MVT::v64i16;
         if (NumElements == 128) return MVT::v128i16;
+        if (NumElements == 256) return MVT::v256i16;
         break;
       case MVT::i32:
         if (NumElements == 1)    return MVT::v1i32;
         if (NumElements == 2)    return MVT::v2i32;
         if (NumElements == 3)    return MVT::v3i32;
         if (NumElements == 4)    return MVT::v4i32;
         if (NumElements == 5)    return MVT::v5i32;
         if (NumElements == 8)    return MVT::v8i32;
static MVT getVectorVT(MVT VT, unsigned NumElements) {
         if (NumElements == 2)   return MVT::v2f16;
         if (NumElements == 3)   return MVT::v3f16;
         if (NumElements == 4)   return MVT::v4f16;
         if (NumElements == 8)   return MVT::v8f16;
         if (NumElements == 16)  return MVT::v16f16;
         if (NumElements == 32)  return MVT::v32f16;
         if (NumElements == 64)  return MVT::v64f16;
         if (NumElements == 128) return MVT::v128f16;
+        if (NumElements == 256) return MVT::v256f16;
         break;
       case MVT::bf16:
         if (NumElements == 2)   return MVT::v2bf16;
         if (NumElements == 3)   return MVT::v3bf16;
         if (NumElements == 4)   return MVT::v4bf16;
         if (NumElements == 8)   return MVT::v8bf16;
         if (NumElements == 16)  return MVT::v16bf16;
         if (NumElements == 32)  return MVT::v32bf16;

llvm/lib/CodeGen/ValueTypes.cpp

Type *EVT::getTypeForEVT(LLVMContext &Context) const {
   case MVT::v16i16:
     return FixedVectorType::get(Type::getInt16Ty(Context), 16);
   case MVT::v32i16:
     return FixedVectorType::get(Type::getInt16Ty(Context), 32);
   case MVT::v64i16:
     return FixedVectorType::get(Type::getInt16Ty(Context), 64);
   case MVT::v128i16:
     return FixedVectorType::get(Type::getInt16Ty(Context), 128);
+  case MVT::v256i16:
+    return FixedVectorType::get(Type::getInt16Ty(Context), 256);
   case MVT::v1i32:
     return FixedVectorType::get(Type::getInt32Ty(Context), 1);
   case MVT::v2i32:
     return FixedVectorType::get(Type::getInt32Ty(Context), 2);
   case MVT::v3i32:
     return FixedVectorType::get(Type::getInt32Ty(Context), 3);
   case MVT::v4i32:
     return FixedVectorType::get(Type::getInt32Ty(Context), 4);
Type *EVT::getTypeForEVT(LLVMContext &Context) const {
   case MVT::v16f16:
     return FixedVectorType::get(Type::getHalfTy(Context), 16);
   case MVT::v32f16:
     return FixedVectorType::get(Type::getHalfTy(Context), 32);
   case MVT::v64f16:
     return FixedVectorType::get(Type::getHalfTy(Context), 64);
   case MVT::v128f16:
     return FixedVectorType::get(Type::getHalfTy(Context), 128);
+  case MVT::v256f16:
+    return FixedVectorType::get(Type::getHalfTy(Context), 256);
   case MVT::v2bf16:
     return FixedVectorType::get(Type::getBFloatTy(Context), 2);
   case MVT::v3bf16:
     return FixedVectorType::get(Type::getBFloatTy(Context), 3);
   case MVT::v4bf16:
     return FixedVectorType::get(Type::getBFloatTy(Context), 4);
   case MVT::v8bf16:
     return FixedVectorType::get(Type::getBFloatTy(Context), 8);

llvm/test/CodeGen/RISCV/rvv/interleave-crash.ll

+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv64 -O1 -mattr=+m,+experimental-v -riscv-v-vector-bits-min=1024 < %s | FileCheck %s --check-prefix=RV64-1024
+
+define void @interleave256(<256 x i16>* %agg.result, <128 x i16>* %0, <128 x i16>* %1) {
+; RV64-1024-LABEL: interleave256:
+; RV64-1024:       # %bb.0: # %entry
+; RV64-1024-NEXT:    addi a3, zero, 128
+; RV64-1024-NEXT:    vsetvli a4, a3, e16,m2,ta,mu
+; RV64-1024-NEXT:    vle16.v v12, (a1)
+; RV64-1024-NEXT:    vle16.v v8, (a2)
+; RV64-1024-NEXT:    addi a1, zero, 256
+; RV64-1024-NEXT:    vsetvli a2, a1, e16,m4,ta,mu
+; RV64-1024-NEXT:    vmv.v.i v28, 0
+; RV64-1024-NEXT:    vsetvli a2, a3, e16,m4,tu,mu
+; RV64-1024-NEXT:    vmv4r.v v16, v28
+; RV64-1024-NEXT:    vslideup.vi v16, v12, 0
+; RV64-1024-NEXT:    vsetvli a2, a3, e16,m2,ta,mu
+; RV64-1024-NEXT:    vmv.v.i v12, 0
+; RV64-1024-NEXT:    vsetvli a2, a1, e16,m4,tu,mu
+; RV64-1024-NEXT:    vslideup.vx v16, v12, a3
+; RV64-1024-NEXT:    lui a2, %hi(.LCPI0_0)
+; RV64-1024-NEXT:    addi a2, a2, %lo(.LCPI0_0)
+; RV64-1024-NEXT:    vsetvli a4, a1, e16,m4,ta,mu
+; RV64-1024-NEXT:    vle16.v v20, (a2)
+; RV64-1024-NEXT:    vrgather.vv v24, v16, v20
+; RV64-1024-NEXT:    vsetvli a2, a3, e16,m4,tu,mu
+; RV64-1024-NEXT:    vslideup.vi v28, v8, 0
+; RV64-1024-NEXT:    vsetvli a2, a1, e16,m4,tu,mu
+; RV64-1024-NEXT:    vslideup.vx v28, v12, a3
+; RV64-1024-NEXT:    lui a2, %hi(.LCPI0_1)
+; RV64-1024-NEXT:    addi a2, a2, %lo(.LCPI0_1)
+; RV64-1024-NEXT:    vsetvli a3, a1, e16,m4,ta,mu
+; RV64-1024-NEXT:    vle16.v v12, (a2)
+; RV64-1024-NEXT:    vrgather.vv v8, v24, v12
+; RV64-1024-NEXT:    lui a2, 1026731
+; RV64-1024-NEXT:    addiw a2, a2, -1365
+; RV64-1024-NEXT:    slli a2, a2, 12
+; RV64-1024-NEXT:    addi a2, a2, -1365
+; RV64-1024-NEXT:    slli a2, a2, 12
+; RV64-1024-NEXT:    addi a2, a2, -1365
+; RV64-1024-NEXT:    slli a2, a2, 12
+; RV64-1024-NEXT:    addi a2, a2, -1366
+; RV64-1024-NEXT:    vsetivli a3, 4, e64,m1,ta,mu
+; RV64-1024-NEXT:    vmv.s.x v25, a2
+; RV64-1024-NEXT:    vsetivli a2, 2, e64,m1,tu,mu
+; RV64-1024-NEXT:    vmv1r.v v0, v25
+; RV64-1024-NEXT:    vslideup.vi v0, v25, 1
+; RV64-1024-NEXT:    vsetivli a2, 3, e64,m1,tu,mu
+; RV64-1024-NEXT:    vslideup.vi v0, v25, 2
+; RV64-1024-NEXT:    vsetivli a2, 4, e64,m1,tu,mu
+; RV64-1024-NEXT:    vslideup.vi v0, v25, 3
+; RV64-1024-NEXT:    lui a2, %hi(.LCPI0_2)
+; RV64-1024-NEXT:    addi a2, a2, %lo(.LCPI0_2)
+; RV64-1024-NEXT:    vsetvli a3, a1, e16,m4,ta,mu
+; RV64-1024-NEXT:    vle16.v v12, (a2)
+; RV64-1024-NEXT:    vsetvli a2, a1, e16,m4,tu,mu
+; RV64-1024-NEXT:    vrgather.vv v8, v28, v12, v0.t
+; RV64-1024-NEXT:    vsetvli a1, a1, e16,m4,ta,mu
+; RV64-1024-NEXT:    vse16.v v8, (a0)
+; RV64-1024-NEXT:    ret
+entry:
+  %ve = load <128 x i16>, <128 x i16>* %0, align 256
+  %vo = load <128 x i16>, <128 x i16>* %1, align 256
+  %2 = shufflevector <128 x i16> %ve, <128 x i16> poison, <256 x i32> <i32 0, i32 undef, i32 1, i32 undef, i32 2, i32 undef, i32 3, i32 undef, i32 4, i32 undef, i32 5, i32 undef, i32 6, i32 undef, i32 7, i32 undef, i32 8, i32 undef, i32 9, i32 undef, i32 10, i32 undef, i32 11, i32 undef, i32 12, i32 undef, i32 13, i32 undef, i32 14, i32 undef, i32 15, i32 undef, i32 16, i32 undef, i32 17, i32 undef, i32 18, i32 undef, i32 19, i32 undef, i32 20, i32 undef, i32 21, i32 undef, i32 22, i32 undef, i32 23, i32 undef, i32 24, i32 undef, i32 25, i32 undef, i32 26, i32 undef, i32 27, i32 undef, i32 28, i32 undef, i32 29, i32 undef, i32 30, i32 undef, i32 31, i32 undef, i32 32, i32 undef, i32 33, i32 undef, i32 34, i32 undef, i32 35, i32 undef, i32 36, i32 undef, i32 37, i32 undef, i32 38, i32 undef, i32 39, i32 undef, i32 40, i32 undef, i32 41, i32 undef, i32 42, i32 undef, i32 43, i32 undef, i32 44, i32 undef, i32 45, i32 undef, i32 46, i32 undef, i32 47, i32 undef, i32 48, i32 undef, i32 49, i32 undef, i32 50, i32 undef, i32 51, i32 undef, i32 52, i32 undef, i32 53, i32 undef, i32 54, i32 undef, i32 55, i32 undef, i32 56, i32 undef, i32 57, i32 undef, i32 58, i32 undef, i32 59, i32 undef, i32 60, i32 undef, i32 61, i32 undef, i32 62, i32 undef, i32 63, i32 undef, i32 64, i32 undef, i32 65, i32 undef, i32 66, i32 undef, i32 67, i32 undef, i32 68, i32 undef, i32 69, i32 undef, i32 70, i32 undef, i32 71, i32 undef, i32 72, i32 undef, i32 73, i32 undef, i32 74, i32 undef, i32 75, i32 undef, i32 76, i32 undef, i32 77, i32 undef, i32 78, i32 undef, i32 79, i32 undef, i32 80, i32 undef, i32 81, i32 undef, i32 82, i32 undef, i32 83, i32 undef, i32 84, i32 undef, i32 85, i32 undef, i32 86, i32 undef, i32 87, i32 undef, i32 88, i32 undef, i32 89, i32 undef, i32 90, i32 undef, i32 91, i32 undef, i32 92, i32 undef, i32 93, i32 undef, i32 94, i32 undef, i32 95, i32 undef, i32 96, i32 undef, i32 97, i32 undef, i32 98, i32 undef, i32 99, i32 undef, i32 100, i32 undef, i32 101, i32 undef, i32 102, i32 undef, i32 103, i32 undef, i32 104, i32 undef, i32 105, i32 undef, i32 106, i32 undef, i32 107, i32 undef, i32 108, i32 undef, i32 109, i32 undef, i32 110, i32 undef, i32 111, i32 undef, i32 112, i32 undef, i32 113, i32 undef, i32 114, i32 undef, i32 115, i32 undef, i32 116, i32 undef, i32 117, i32 undef, i32 118, i32 undef, i32 119, i32 undef, i32 120, i32 undef, i32 121, i32 undef, i32 122, i32 undef, i32 123, i32 undef, i32 124, i32 undef, i32 125, i32 undef, i32 126, i32 undef, i32 127, i32 undef>
+  %3 = shufflevector <128 x i16> %vo, <128 x i16> poison, <256 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 32, i32 33, i32 34, i32 35, i32 36, i32 37, i32 38, i32 39, i32 40, i32 41, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49, i32 50, i32 51, i32 52, i32 53, i32 54, i32 55, i32 56, i32 57, i32 58, i32 59, i32 60, i32 61, i32 62, i32 63, i32 64, i32 65, i32 66, i32 67, i32 68, i32 69, i32 70, i32 71, i32 72, i32 73, i32 74, i32 75, i32 76, i32 77, i32 78, i32 79, i32 80, i32 81, i32 82, i32 83, i32 84, i32 85, i32 86, i32 87, i32 88, i32 89, i32 90, i32 91, i32 92, i32 93, i32 94, i32 95, i32 96, i32 97, i32 98, i32 99, i32 100, i32 101, i32 102, i32 103, i32 104, i32 105, i32 106, i32 107, i32 108, i32 109, i32 110, i32 111, i32 112, i32 113, i32 114, i32 115, i32 116, i32 117, i32 118, i32 119, i32 120, i32 121, i32 122, i32 123, i32 124, i32 125, i32 126, i32 127, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
+  %4 = shufflevector <256 x i16> %2, <256 x i16> %3, <256 x i32> <i32 0, i32 256, i32 2, i32 257, i32 4, i32 258, i32 6, i32 259, i32 8, i32 260, i32 10, i32 261, i32 12, i32 262, i32 14, i32 263, i32 16, i32 264, i32 18, i32 265, i32 20, i32 266, i32 22, i32 267, i32 24, i32 268, i32 26, i32 269, i32 28, i32 270, i32 30, i32 271, i32 32, i32 272, i32 34, i32 273, i32 36, i32 274, i32 38, i32 275, i32 40, i32 276, i32 42, i32 277, i32 44, i32 278, i32 46, i32 279, i32 48, i32 280, i32 50, i32 281, i32 52, i32 282, i32 54, i32 283, i32 56, i32 284, i32 58, i32 285, i32 60, i32 286, i32 62, i32 287, i32 64, i32 288, i32 66, i32 289, i32 68, i32 290, i32 70, i32 291, i32 72, i32 292, i32 74, i32 293, i32 76, i32 294, i32 78, i32 295, i32 80, i32 296, i32 82, i32 297, i32 84, i32 298, i32 86, i32 299, i32 88, i32 300, i32 90, i32 301, i32 92, i32 302, i32 94, i32 303, i32 96, i32 304, i32 98, i32 305, i32 100, i32 306, i32 102, i32 307, i32 104, i32 308, i32 106, i32 309, i32 108, i32 310, i32 110, i32 311, i32 112, i32 312, i32 114, i32 313, i32 116, i32 314, i32 118, i32 315, i32 120, i32 316, i32 122, i32 317, i32 124, i32 318, i32 126, i32 319, i32 128, i32 320, i32 130, i32 321, i32 132, i32 322, i32 134, i32 323, i32 136, i32 324, i32 138, i32 325, i32 140, i32 326, i32 142, i32 327, i32 144, i32 328, i32 146, i32 329, i32 148, i32 330, i32 150, i32 331, i32 152, i32 332, i32 154, i32 333, i32 156, i32 334, i32 158, i32 335, i32 160, i32 336, i32 162, i32 337, i32 164, i32 338, i32 166, i32 339, i32 168, i32 340, i32 170, i32 341, i32 172, i32 342, i32 174, i32 343, i32 176, i32 344, i32 178, i32 345, i32 180, i32 346, i32 182, i32 347, i32 184, i32 348, i32 186, i32 349, i32 188, i32 350, i32 190, i32 351, i32 192, i32 352, i32 194, i32 353, i32 196, i32 354, i32 198, i32 355, i32 200, i32 356, i32 202, i32 357, i32 204, i32 358, i32 206, i32 359, i32 208, i32 360, i32 210, i32 361, i32 212, i32 362, i32 214, i32 363, i32 216, i32 364, i32 218, i32 365, i32 220, i32 366, i32 222, i32 367, i32 224, i32 368, i32 226, i32 369, i32 228, i32 370, i32 230, i32 371, i32 232, i32 372, i32 234, i32 373, i32 236, i32 374, i32 238, i32 375, i32 240, i32 376, i32 242, i32 377, i32 244, i32 378, i32 246, i32 379, i32 248, i32 380, i32 250, i32 381, i32 252, i32 382, i32 254, i32 383>
+  store <256 x i16> %4, <256 x i16>* %agg.result, align 512
+  ret void
+}