[llvm] [AArch64] Add assembly/disassembly for BFMOP4{A,S} (non-widening) instructions (PR #113342)
via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 22 10:35:08 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-aarch64
Author: Momchil Velikov (momchil-velikov)
<details>
<summary>Changes</summary>
---
Patch is 42.72 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/113342.diff
8 Files Affected:
- (modified) llvm/lib/Target/AArch64/AArch64.td (+6-1)
- (modified) llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td (+9)
- (modified) llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp (+3)
- (modified) llvm/lib/Target/AArch64/SMEInstrFormats.td (+74)
- (added) llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening-diagnostics.s (+220)
- (added) llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening.s (+178)
- (added) llvm/test/MC/AArch64/SME2p2/bfmop4as-widening-diagnostics.s (+220)
- (added) llvm/test/MC/AArch64/SME2p2/bfmop4as-widening.s (+178)
``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64.td b/llvm/lib/Target/AArch64/AArch64.td
index cdfbd3db64736f..f0649a4a894f6b 100644
--- a/llvm/lib/Target/AArch64/AArch64.td
+++ b/llvm/lib/Target/AArch64/AArch64.td
@@ -73,8 +73,13 @@ def SVEUnsupported : AArch64Unsupported {
SVE2Unsupported.F);
}
+let F = [HasSME2p2] in
+def SME2p2Unsupported : AArch64Unsupported;
+
let F = [HasSME2p1, HasSVE2p1_or_HasSME2p1] in
-def SME2p1Unsupported : AArch64Unsupported;
+def SME2p1Unsupported : AArch64Unsupported {
+ let F = !listconcat([HasSME2p1, HasSVE2p1_or_HasSME2p1], SME2p2Unsupported.F);
+}
def SME2Unsupported : AArch64Unsupported {
let F = !listconcat([HasSME2, HasSVE2orSME2, HasSVE2p1_or_HasSME2, HasSSVE_FP8FMA,
diff --git a/llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td b/llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
index 802797a14ee42d..455408f4f83f99 100644
--- a/llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
@@ -1000,3 +1000,12 @@ defm FMOPA_MPPZZ_BtoS : sme_outer_product_fp32<0b0, 0b01, ZPR8, "fmopa", null_fr
} //[HasSMEF8F32]
+let Predicates = [HasSME2p2] in {
+ defm BFMOP4A : sme2_bfmop4as_widening<0, "bfmop4a">;
+ defm BFMOP4S : sme2_bfmop4as_widening<1, "bfmop4s">;
+}
+
+let Predicates = [HasSME2p2, HasSMEB16B16] in {
+ defm BFMOP4A : sme2_bfmop4as_non_widening<0, "bfmop4a">;
+ defm BFMOP4S : sme2_bfmop4as_non_widening<1, "bfmop4s">;
+}
diff --git a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
index 72b9f252a71878..d6ee63aea4b7dc 100644
--- a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
+++ b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
@@ -6179,6 +6179,8 @@ bool AArch64AsmParser::showMatchError(SMLoc Loc, unsigned ErrCode,
case Match_InvalidMatrixTileVectorV128:
return Error(Loc,
"invalid matrix operand, expected za[0-15]h.q or za[0-15]v.q");
+ case Match_InvalidMatrixTile16:
+ return Error(Loc, "invalid matrix operand, expected za[0-1].h");
case Match_InvalidMatrixTile32:
return Error(Loc, "invalid matrix operand, expected za[0-3].s");
case Match_InvalidMatrixTile64:
@@ -6798,6 +6800,7 @@ bool AArch64AsmParser::matchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
case Match_InvalidSVEExactFPImmOperandHalfOne:
case Match_InvalidSVEExactFPImmOperandHalfTwo:
case Match_InvalidSVEExactFPImmOperandZeroOne:
+ case Match_InvalidMatrixTile16:
case Match_InvalidMatrixTile32:
case Match_InvalidMatrixTile64:
case Match_InvalidMatrix:
diff --git a/llvm/lib/Target/AArch64/SMEInstrFormats.td b/llvm/lib/Target/AArch64/SMEInstrFormats.td
index 38d256c8234118..2a7008f85ee0e7 100644
--- a/llvm/lib/Target/AArch64/SMEInstrFormats.td
+++ b/llvm/lib/Target/AArch64/SMEInstrFormats.td
@@ -5126,3 +5126,77 @@ class sme2_luti4_vector_vg4_strided<bits<2> sz, bits<2> op, string mnemonic>
let Inst{3-2} = 0b00;
let Inst{1-0} = Zd{1-0};
}
+
+class sme2_bf16_fp32_quarter_tile_outer_product<bit M, bit N, bit S, string mnemonic, RegisterOperand zn_ty, RegisterOperand zm_ty>
+ : I<(outs TileOp32:$ZAda),
+ (ins TileOp32:$_ZAda, zn_ty:$Zn, zm_ty:$Zm),
+ mnemonic, "\t$ZAda, $Zn, $Zm",
+ "", []>, Sched<[]> {
+ bits<2> ZAda;
+ bits<3> Zn;
+ bits<3> Zm;
+
+ let Inst{31-21} = 0b10000001000;
+ let Inst{20} = M;
+ let Inst{19-17} = Zm;
+ let Inst{16-10} = 0b0000000;
+ let Inst{9} = N;
+ let Inst{8-6} = Zn;
+ let Inst{5} = 0;
+ let Inst{4} = S;
+ let Inst{3-2} = 0b00;
+ let Inst{1-0} = ZAda;
+
+ let Constraints = "$ZAda = $_ZAda";
+}
+
+multiclass sme2_bfmop4as_widening<bit S, string mnemonic> {
+ // Single vectors
+ def _ZZ_S : sme2_bf16_fp32_quarter_tile_outer_product<0, 0, S, mnemonic, ZPR16Mul2_Lo, ZPR16Mul2_Hi>;
+
+ // Multiple and single vectors
+ def _2ZZ_S : sme2_bf16_fp32_quarter_tile_outer_product<0, 1, S, mnemonic, ZZ_h_mul_r_Lo, ZPR16Mul2_Hi>;
+
+ // Single and multiple vectors
+ def _Z2Z_S : sme2_bf16_fp32_quarter_tile_outer_product<1, 0, S, mnemonic, ZPR16Mul2_Lo, ZZ_h_mul_r_Hi>;
+
+ // Multiple vectors
+ def _2Z2Z_S : sme2_bf16_fp32_quarter_tile_outer_product<1, 1, S, mnemonic, ZZ_h_mul_r_Lo, ZZ_h_mul_r_Hi>;
+}
+
+class sme2_bf16_fp16_quarter_tile_outer_product<bit M, bit N, bit S, string mnemonic, RegisterOperand zn_ty, RegisterOperand zm_ty>
+ : I<(outs TileOp16:$ZAda),
+ (ins TileOp16:$_ZAda, zn_ty:$Zn, zm_ty:$Zm),
+ mnemonic, "\t$ZAda, $Zn, $Zm",
+ "", []>, Sched<[]> {
+ bit ZAda;
+ bits<3> Zn;
+ bits<3> Zm;
+
+ let Inst{31-21} = 0b10000001001;
+ let Inst{20} = M;
+ let Inst{19-17} = Zm;
+ let Inst{16-10} = 0b0000000;
+ let Inst{9} = N;
+ let Inst{8-6} = Zn;
+ let Inst{5} = 0;
+ let Inst{4} = S;
+ let Inst{3-1} = 0b100;
+ let Inst{0} = ZAda;
+
+ let Constraints = "$ZAda = $_ZAda";
+}
+
+multiclass sme2_bfmop4as_non_widening<bit S, string mnemonic> {
+ // Single vectors
+ def _ZZ_H : sme2_bf16_fp16_quarter_tile_outer_product<0, 0, S, mnemonic, ZPR16Mul2_Lo, ZPR16Mul2_Hi>;
+
+ // Multiple and single vectors
+ def _2ZZ_H : sme2_bf16_fp16_quarter_tile_outer_product<0, 1, S, mnemonic, ZZ_h_mul_r_Lo, ZPR16Mul2_Hi>;
+
+ // Single and multiple vectors
+ def _Z2Z_H : sme2_bf16_fp16_quarter_tile_outer_product<1, 0, S, mnemonic, ZPR16Mul2_Lo, ZZ_h_mul_r_Hi>;
+
+ // Multiple vectors
+ def _2Z2Z_H : sme2_bf16_fp16_quarter_tile_outer_product<1, 1, S, mnemonic, ZZ_h_mul_r_Lo, ZZ_h_mul_r_Hi>;
+}
diff --git a/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening-diagnostics.s b/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening-diagnostics.s
new file mode 100644
index 00000000000000..231d4cd9967a49
--- /dev/null
+++ b/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening-diagnostics.s
@@ -0,0 +1,220 @@
+// RUN: not llvm-mc -triple=aarch64 -mattr=+sme2p2,+sme-b16b16 < %s 2>&1 | FileCheck %s
+
+// BFMOP4A
+
+// Single vectors
+
+bfmop4a za0.d, z0.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4a za4.h, z0.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, z0.s, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z15.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z16.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z0.h, z16.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4a za0.h, z12.h, z17.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4a za0.h, z12.h, z14.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4a za0.h, z12.h, z31.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+// Single and multiple vectors
+
+bfmop4a za0.d, z0.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4a za4.h, z0.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, z0.s, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z1.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z16.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4a za0.h, z0.h, {z16.s-z17.s}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, z0.h, {z17.h-z18.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, z0.h, {z12.h-z13.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+// Multiple and single vectors
+
+bfmop4a za0.d, {z0.h-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4a za4.h, {z0.h-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, {z0.s-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: mismatched register size suffix
+
+bfmop4a za0.h, {z1.h-z2.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, {z16.h-z17.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, {z0.h-z1.h}, z16.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4a za0.h, {z0.h-z1.h}, z17.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4a za0.h, {z0.h-z1.h}, z12.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+// Multiple vectors
+
+bfmop4a za0.d, {z0.h-z1.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4a za4.h, {z0.h-z1.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, {z0.s-z1.s}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, {z1.h-z2.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, {z18.h-z19.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, {z0.h-z1.h}, {z16.s-z17.s}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4a za0.h, {z0.h-z1.h}, {z19.h-z20.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4a za0.h, {z0.h-z1.h}, {z10.h-z11.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+
+// BFMOP4S
+
+// Single vectors
+
+bfmop4s za0.d, z0.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4s za4.h, z0.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, z0.s, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z15.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z16.h, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z0.h, z16.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4s za0.h, z12.h, z17.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4s za0.h, z12.h, z14.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4s za0.h, z12.h, z31.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+// Single and multiple vectors
+
+bfmop4s za0.d, z0.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4s za4.h, z0.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, z0.s, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z1.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z16.h, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z0.h..z14.h
+
+bfmop4s za0.h, z0.h, {z16.s-z17.s}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, z0.h, {z17.h-z18.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, z0.h, {z12.h-z13.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+// Multiple and single vectors
+
+bfmop4s za0.d, {z0.h-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4s za4.h, {z0.h-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, {z0.s-z1.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: mismatched register size suffix
+
+bfmop4s za0.h, {z1.h-z2.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, {z16.h-z17.h}, z16.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, {z0.h-z1.h}, z16.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4s za0.h, {z0.h-z1.h}, z17.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+bfmop4s za0.h, {z0.h-z1.h}, z12.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid restricted vector register, expected even register in z16.h..z30.h
+
+// Multiple vectors
+
+bfmop4s za0.d, {z0.h-z1.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid matrix operand, expected za[0-3].s
+
+bfmop4s za4.h, {z0.h-z1.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, {z0.s-z1.s}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, {z1.h-z2.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, {z18.h-z19.h}, {z16.h-z17.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z0-z14, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, {z0.h-z1.h}, {z16.s-z17.s}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+bfmop4s za0.h, {z0.h-z1.h}, {z19.h-z20.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
+
+bfmop4s za0.h, {z0.h-z1.h}, {z10.h-z11.h}
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
diff --git a/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening.s b/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening.s
new file mode 100644
index 00000000000000..4859d7e65c77a7
--- /dev/null
+++ b/llvm/test/MC/AArch64/SME2p2/bfmop4as-non-widening.s
@@ -0,0 +1,178 @@
+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2p2,+sme-b16b16 < %s \
+// RUN: | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+// RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
+// RUN: | FileCheck %s --check-prefix=CHECK-ERROR
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2p2,+sme-b16b16 < %s \
+// RUN: | llvm-objdump -d --mattr=+sme2p2,+sme-b16b16 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2p2,+sme-b16b16 < %s \
+// RUN: | llvm-objdump -d --mattr=-sme2 - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+// Disassemble encoding and check the re-encoding (-show-encoding) matches.
+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2p2,+sme-b16b16 < %s \
+// RUN: | sed '/.text/d' | sed 's/.*encoding: //g' \
+// RUN: | llvm-mc -triple=aarch64 -mattr=+sme2p2,+sme-b16b16 -disassemble -show-encoding \
+// RUN: | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+
+// BFMOP4A
+
+// Single vectors
+
+bfmop4a za0.h, z0.h, z16.h // 10000001-00100000-00000000-00001000
+// CHECK-INST: bfmop4a za0.h, z0.h, z16.h
+// CHECK-ENCODING: [0x08,0x00,0x20,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81200008 <unknown>
+
+bfmop4a za1.h, z12.h, z24.h // 10000001-00101000-00000001-10001001
+// CHECK-INST: bfmop4a za1.h, z12.h, z24.h
+// CHECK-ENCODING: [0x89,0x01,0x28,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81280189 <unknown>
+
+bfmop4a za1.h, z14.h, z30.h // 10000001-00101110-00000001-11001001
+// CHECK-INST: bfmop4a za1.h, z14.h, z30.h
+// CHECK-ENCODING: [0xc9,0x01,0x2e,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 812e01c9 <unknown>
+
+// Single and multiple vectors
+
+bfmop4a za0.h, z0.h, {z16.h-z17.h} // 10000001-00110000-00000000-00001000
+// CHECK-INST: bfmop4a za0.h, z0.h, { z16.h, z17.h }
+// CHECK-ENCODING: [0x08,0x00,0x30,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81300008 <unknown>
+
+bfmop4a za1.h, z12.h, {z24.h-z25.h} // 10000001-00111000-00000001-10001001
+// CHECK-INST: bfmop4a za1.h, z12.h, { z24.h, z25.h }
+// CHECK-ENCODING: [0x89,0x01,0x38,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81380189 <unknown>
+
+bfmop4a za1.h, z14.h, {z30.h-z31.h} // 10000001-00111110-00000001-11001001
+// CHECK-INST: bfmop4a za1.h, z14.h, { z30.h, z31.h }
+// CHECK-ENCODING: [0xc9,0x01,0x3e,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 813e01c9 <unknown>
+
+// Multiple and single vectors
+
+bfmop4a za0.h, {z0.h-z1.h}, z16.h // 10000001-00100000-00000010-00001000
+// CHECK-INST: bfmop4a za0.h, { z0.h, z1.h }, z16.h
+// CHECK-ENCODING: [0x08,0x02,0x20,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81200208 <unknown>
+
+bfmop4a za1.h, {z12.h-z13.h}, z24.h // 10000001-00101000-00000011-10001001
+// CHECK-INST: bfmop4a za1.h, { z12.h, z13.h }, z24.h
+// CHECK-ENCODING: [0x89,0x03,0x28,0x81]
+// CHECK-ERROR: instruction requires: sme2p2 sme-b16b16
+// CHECK-UNKNOWN: 81280389 <unknown>
+
+bfmop4a za1.h, {z14.h-z15.h}, z30.h // 10000001-00101110-00000011-11001001
+// CHECK-INST: bfmop4a za1.h, { z14.h, z15.h }, z30.h
+// CHECK-ENCODING: [0xc9,0x03,0x2e,0x81]
+// CHECK-ERROR: inst...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/113342
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