[AArch64][SVE2] Asm: support SVE2 Floating Point Pairwise Group

[c-rhodes]

Summary

Patch adds support for the following instructions:

SVE2 floating-point pairwise operations:

• FADDP, FMAXNMP, FMINNMP, FMAXP, FMINP

The specification can be found here:
https://developer.arm.com/docs/ddi0602/latest

[chill]

test/MC/AArch64/SVE2/faddp-diagnostics.s

36

Also p0/z is invalid predicate, e.g.:

faddp z0.h, p0/z, z0.h, z1.h
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand

etc.

[c-rhodes]

test/MC/AArch64/SVE2/faddp-diagnostics.s

36

I can add a test for that before merging. Managed to miss this for quite a few of the predicate instructions it seems. I have a patch downstream that improves the SVE predicate tests also as similar cases are missing there, I'll get that up after the SVE2 stuff is in.

lib/Target/AArch64/AArch64SVEInstrInfo.td

let Predicates = [HasSVE2] in {
   // SVE2 histogram generation (vector)
   defm HISTCNT_ZPzZZ : sve2_hist_gen_vector<"histcnt">;
 
   // SVE2 floating-point convert precision
   defm FCVTXNT_ZPmZ : sve2_fp_convert_down_odd_rounding<"fcvtxnt">;
   defm FCVTNT_ZPmZ  : sve2_fp_convert_down_narrow<"fcvtnt">;
   defm FCVTLT_ZPmZ  : sve2_fp_convert_up_long<"fcvtlt">;
 
+  // SVE2 floating-point pairwise operations
+  defm FADDP_ZPmZZ   : sve2_fp_pairwise_pred<0b000, "faddp">;
+  defm FMAXNMP_ZPmZZ : sve2_fp_pairwise_pred<0b100, "fmaxnmp">;
+  defm FMINNMP_ZPmZZ : sve2_fp_pairwise_pred<0b101, "fminnmp">;
+  defm FMAXP_ZPmZZ   : sve2_fp_pairwise_pred<0b110, "fmaxp">;
+  defm FMINP_ZPmZZ   : sve2_fp_pairwise_pred<0b111, "fminp">;
+
   // Predicated shifts
   defm SQSHL_ZPmI  : sve_int_bin_pred_shift_imm_left< 0b0110, "sqshl">;
   defm UQSHL_ZPmI  : sve_int_bin_pred_shift_imm_left< 0b0111, "uqshl">;
   defm SRSHR_ZPmI  : sve_int_bin_pred_shift_imm_right<0b1100, "srshr">;
   defm URSHR_ZPmI  : sve_int_bin_pred_shift_imm_right<0b1101, "urshr">;
   defm SQSHLU_ZPmI : sve_int_bin_pred_shift_imm_left< 0b1111, "sqshlu">;
 }
 

lib/Target/AArch64/SVEInstrFormats.td

multiclass sve2_fp_convert_up_long<string asm> {
   def _StoD : sve2_fp_convert_precision<0b1111, asm, ZPR64, ZPR32>;
 }
 
 multiclass sve2_fp_convert_down_odd_rounding<string asm> {
   def _DtoS : sve2_fp_convert_precision<0b0010, asm, ZPR32, ZPR64>;
 }
 
 //===----------------------------------------------------------------------===//
+// SVE2 Floating Point Pairwise Group
+//===----------------------------------------------------------------------===//
+
+class sve2_fp_pairwise_pred<bits<2> sz, bits<3> opc, string asm,
+                            ZPRRegOp zprty>
+: I<(outs zprty:$Zdn), (ins PPR3bAny:$Pg, zprty:$_Zdn, zprty:$Zm),
+  asm, "\t$Zdn, $Pg/m, $_Zdn, $Zm",
+  "",
+  []>, Sched<[]> {
+  bits<3> Pg;
+  bits<5> Zm;
+  bits<5> Zdn;
+  let Inst{31-24} = 0b01100100;
+  let Inst{23-22} = sz;
+  let Inst{21-19} = 0b010;
+  let Inst{18-16} = opc;
+  let Inst{15-13} = 0b100;
+  let Inst{12-10} = Pg;
+  let Inst{9-5}   = Zm;
+  let Inst{4-0}   = Zdn;
+
+  let Constraints = "$Zdn = $_Zdn";
+  let DestructiveInstType = Destructive;
+  let ElementSize = zprty.ElementSize;
+}
+
+multiclass sve2_fp_pairwise_pred<bits<3> opc, string asm> {
+  def _H : sve2_fp_pairwise_pred<0b01, opc, asm, ZPR16>;
+  def _S : sve2_fp_pairwise_pred<0b10, opc, asm, ZPR32>;
+  def _D : sve2_fp_pairwise_pred<0b11, opc, asm, ZPR64>;
+}
+
+//===----------------------------------------------------------------------===//
 // SVE Stack Allocation Group
 //===----------------------------------------------------------------------===//
 
 class sve_int_arith_vl<bit opc, string asm>
 : I<(outs GPR64sp:$Rd), (ins GPR64sp:$Rn, simm6_32b:$imm6),
   asm, "\t$Rd, $Rn, $imm6",
   "",
   []>, Sched<[]> {

test/MC/AArch64/SVE2/faddp-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Source and Destination Registers must match
+
+faddp z0.h, p0/m, z1.h, z2.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
+// CHECK-NEXT: faddp z0.h, p0/m, z1.h, z2.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+faddp z0.b, p0/m, z0.b, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: faddp z0.b, p0/m, z0.b, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Element sizes must match
+
+faddp z0.h, p0/m, z0.s, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: faddp z0.h, p0/m, z0.s, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+faddp z0.h, p0/m, z0.h, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: faddp z0.h, p0/m, z0.h, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Predicate not in restricted predicate range
+
+faddp z0.h, p8/m, z0.h, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: faddp z0.h, p8/m, z0.h, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

test/MC/AArch64/SVE2/faddp.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 < %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=+sve2 < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve2 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve2 < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+faddp z0.h, p0/m, z0.h, z1.h
+// CHECK-INST: faddp z0.h, p0/m, z0.h, z1.h
+// CHECK-ENCODING: [0x20,0x80,0x50,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: 20 80 50 64 <unknown>
+
+faddp z29.s, p3/m, z29.s, z30.s
+// CHECK-INST: faddp z29.s, p3/m, z29.s, z30.s
+// CHECK-ENCODING: [0xdd,0x8f,0x90,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: dd 8f 90 64 <unknown>
+
+faddp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: faddp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd0,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d0 64 <unknown>
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z31.d, p0/z, z6.d
+// CHECK-INST: movprfx z31.d, p0/z, z6.d
+// CHECK-ENCODING: [0xdf,0x20,0xd0,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df 20 d0 04 <unknown>
+
+faddp z31.d, p0/m, z31.d, z30.d
+// CHECK-INST: faddp z31.d, p0/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x83,0xd0,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 83 d0 64 <unknown>
+
+movprfx z31, z6
+// CHECK-INST: movprfx z31, z6
+// CHECK-ENCODING: [0xdf,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df bc 20 04 <unknown>
+
+faddp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: faddp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd0,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d0 64 <unknown>

test/MC/AArch64/SVE2/fmaxnmp-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Source and Destination Registers must match
+
+fmaxnmp z0.h, p0/m, z1.h, z2.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
+// CHECK-NEXT: fmaxnmp z0.h, p0/m, z1.h, z2.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+fmaxnmp z0.b, p0/m, z0.b, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxnmp z0.b, p0/m, z0.b, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Element sizes must match
+
+fmaxnmp z0.h, p0/m, z0.s, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxnmp z0.h, p0/m, z0.s, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fmaxnmp z0.h, p0/m, z0.h, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxnmp z0.h, p0/m, z0.h, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Predicate not in restricted predicate range
+
+fmaxnmp z0.h, p8/m, z0.h, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: fmaxnmp z0.h, p8/m, z0.h, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

test/MC/AArch64/SVE2/fmaxnmp.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 < %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=+sve2 < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve2 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve2 < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+fmaxnmp z0.h, p0/m, z0.h, z1.h
+// CHECK-INST: fmaxnmp z0.h, p0/m, z0.h, z1.h
+// CHECK-ENCODING: [0x20,0x80,0x54,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: 20 80 54 64 <unknown>
+
+fmaxnmp z29.s, p3/m, z29.s, z30.s
+// CHECK-INST: fmaxnmp z29.s, p3/m, z29.s, z30.s
+// CHECK-ENCODING: [0xdd,0x8f,0x94,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: dd 8f 94 64 <unknown>
+
+fmaxnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fmaxnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd4,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d4 64 <unknown>
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z31.d, p0/z, z6.d
+// CHECK-INST: movprfx z31.d, p0/z, z6.d
+// CHECK-ENCODING: [0xdf,0x20,0xd0,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df 20 d0 04 <unknown>
+
+fmaxnmp z31.d, p0/m, z31.d, z30.d
+// CHECK-INST: fmaxnmp z31.d, p0/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x83,0xd4,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 83 d4 64 <unknown>
+
+movprfx z31, z6
+// CHECK-INST: movprfx z31, z6
+// CHECK-ENCODING: [0xdf,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df bc 20 04 <unknown>
+
+fmaxnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fmaxnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd4,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d4 64 <unknown>

test/MC/AArch64/SVE2/fmaxp-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Source and Destination Registers must match
+
+fmaxp z0.h, p0/m, z1.h, z2.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
+// CHECK-NEXT: fmaxp z0.h, p0/m, z1.h, z2.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+fmaxp z0.b, p0/m, z0.b, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxp z0.b, p0/m, z0.b, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Element sizes must match
+
+fmaxp z0.h, p0/m, z0.s, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxp z0.h, p0/m, z0.s, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fmaxp z0.h, p0/m, z0.h, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fmaxp z0.h, p0/m, z0.h, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Predicate not in restricted predicate range
+
+fmaxp z0.h, p8/m, z0.h, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: fmaxp z0.h, p8/m, z0.h, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

test/MC/AArch64/SVE2/fmaxp.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 < %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=+sve2 < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve2 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve2 < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+fmaxp z0.h, p0/m, z0.h, z1.h
+// CHECK-INST: fmaxp z0.h, p0/m, z0.h, z1.h
+// CHECK-ENCODING: [0x20,0x80,0x56,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: 20 80 56 64 <unknown>
+
+fmaxp z29.s, p3/m, z29.s, z30.s
+// CHECK-INST: fmaxp z29.s, p3/m, z29.s, z30.s
+// CHECK-ENCODING: [0xdd,0x8f,0x96,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: dd 8f 96 64 <unknown>
+
+fmaxp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fmaxp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd6,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d6 64 <unknown>
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z31.d, p0/z, z6.d
+// CHECK-INST: movprfx z31.d, p0/z, z6.d
+// CHECK-ENCODING: [0xdf,0x20,0xd0,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df 20 d0 04 <unknown>
+
+fmaxp z31.d, p0/m, z31.d, z30.d
+// CHECK-INST: fmaxp z31.d, p0/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x83,0xd6,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 83 d6 64 <unknown>
+
+movprfx z31, z6
+// CHECK-INST: movprfx z31, z6
+// CHECK-ENCODING: [0xdf,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df bc 20 04 <unknown>
+
+fmaxp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fmaxp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd6,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d6 64 <unknown>

test/MC/AArch64/SVE2/fminnmp-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Source and Destination Registers must match
+
+fminnmp z0.h, p0/m, z1.h, z2.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
+// CHECK-NEXT: fminnmp z0.h, p0/m, z1.h, z2.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+fminnmp z0.b, p0/m, z0.b, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminnmp z0.b, p0/m, z0.b, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Element sizes must match
+
+fminnmp z0.h, p0/m, z0.s, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminnmp z0.h, p0/m, z0.s, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fminnmp z0.h, p0/m, z0.h, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminnmp z0.h, p0/m, z0.h, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Predicate not in restricted predicate range
+
+fminnmp z0.h, p8/m, z0.h, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: fminnmp z0.h, p8/m, z0.h, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

test/MC/AArch64/SVE2/fminnmp.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 < %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=+sve2 < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve2 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve2 < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+fminnmp z0.h, p0/m, z0.h, z1.h
+// CHECK-INST: fminnmp z0.h, p0/m, z0.h, z1.h
+// CHECK-ENCODING: [0x20,0x80,0x55,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: 20 80 55 64 <unknown>
+
+fminnmp z29.s, p3/m, z29.s, z30.s
+// CHECK-INST: fminnmp z29.s, p3/m, z29.s, z30.s
+// CHECK-ENCODING: [0xdd,0x8f,0x95,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: dd 8f 95 64 <unknown>
+
+fminnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fminnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd5,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d5 64 <unknown>
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z31.d, p0/z, z6.d
+// CHECK-INST: movprfx z31.d, p0/z, z6.d
+// CHECK-ENCODING: [0xdf,0x20,0xd0,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df 20 d0 04 <unknown>
+
+fminnmp z31.d, p0/m, z31.d, z30.d
+// CHECK-INST: fminnmp z31.d, p0/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x83,0xd5,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 83 d5 64 <unknown>
+
+movprfx z31, z6
+// CHECK-INST: movprfx z31, z6
+// CHECK-ENCODING: [0xdf,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df bc 20 04 <unknown>
+
+fminnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fminnmp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd5,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d5 64 <unknown>

test/MC/AArch64/SVE2/fminp-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+// Source and Destination Registers must match
+
+fminp z0.h, p0/m, z1.h, z2.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: operand must match destination register
+// CHECK-NEXT: fminp z0.h, p0/m, z1.h, z2.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Invalid element width
+
+fminp z0.b, p0/m, z0.b, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminp z0.b, p0/m, z0.b, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Element sizes must match
+
+fminp z0.h, p0/m, z0.s, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminp z0.h, p0/m, z0.s, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+fminp z0.h, p0/m, z0.h, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: fminp z0.h, p0/m, z0.h, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// --------------------------------------------------------------------------//
+// Predicate not in restricted predicate range
+
+fminp z0.h, p8/m, z0.h, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: fminp z0.h, p8/m, z0.h, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

test/MC/AArch64/SVE2/fminp.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 < %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=+sve2 < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve2 - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve2 < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+fminp z0.h, p0/m, z0.h, z1.h
+// CHECK-INST: fminp z0.h, p0/m, z0.h, z1.h
+// CHECK-ENCODING: [0x20,0x80,0x57,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: 20 80 57 64 <unknown>
+
+fminp z29.s, p3/m, z29.s, z30.s
+// CHECK-INST: fminp z29.s, p3/m, z29.s, z30.s
+// CHECK-ENCODING: [0xdd,0x8f,0x97,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: dd 8f 97 64 <unknown>
+
+fminp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fminp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd7,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d7 64 <unknown>
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z31.d, p0/z, z6.d
+// CHECK-INST: movprfx z31.d, p0/z, z6.d
+// CHECK-ENCODING: [0xdf,0x20,0xd0,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df 20 d0 04 <unknown>
+
+fminp z31.d, p0/m, z31.d, z30.d
+// CHECK-INST: fminp z31.d, p0/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x83,0xd7,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 83 d7 64 <unknown>
+
+movprfx z31, z6
+// CHECK-INST: movprfx z31, z6
+// CHECK-ENCODING: [0xdf,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: df bc 20 04 <unknown>
+
+fminp z31.d, p7/m, z31.d, z30.d
+// CHECK-INST: fminp z31.d, p7/m, z31.d, z30.d
+// CHECK-ENCODING: [0xdf,0x9f,0xd7,0x64]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: df 9f d7 64 <unknown>