[AArch64][SVE] Asm: PTRUE and PTRUES instructions

[sdesmalen]

Summary

These instructions initialize a predicate vector from a pattern/immediate.

[samparker]

test/MC/AArch64/SVE/ptrue-diagnostics.s

9

Can we not give the user a more specific error message?

test/MC/AArch64/SVE/ptrue.s

176

Maybe these should test the corner cases? If I understand the document, 14 to 28 should be legal?

test/MC/AArch64/SVE/ptrues.s

7

I can see a few examples of using llvm-objdump for disassembly, but why not just use llvm-mc?

[sdesmalen]

• Added more specific diagnostic message for invalid predicate patterns.
• Extended test cases.

[sdesmalen]

test/MC/AArch64/SVE/ptrue-diagnostics.s

9

Thanks for the suggestion, I've created a new diagnostic for this.

test/MC/AArch64/SVE/ptrue.s

176

Agreed, I've added these now.

test/MC/AArch64/SVE/ptrues.s

7

I've sort of copied this approach from other MC tests and the effect should be the same. Also, I wasn't able to pipe the output from llvm-mc back into llvm-mc, similar to how this is done for llvm-objdump.

[samparker]

Great, LGTM. Thanks!

[fhahn]

LGTM, thanks

lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

#include "AArch64GenAsmMatcher.inc"
   OperandMatchResultTy tryParseFPImm(OperandVector &Operands);
   OperandMatchResultTy tryParseAddSubImm(OperandVector &Operands);
   OperandMatchResultTy tryParseGPR64sp0Operand(OperandVector &Operands);
   bool tryParseNeonVectorRegister(OperandVector &Operands);
   OperandMatchResultTy tryParseGPRSeqPair(OperandVector &Operands);
   template <bool ParseSuffix>
   OperandMatchResultTy tryParseSVEDataVector(OperandVector &Operands);
   OperandMatchResultTy tryParseSVEPredicateVector(OperandVector &Operands);
-  LLVM_ATTRIBUTE_UNUSED OperandMatchResultTy
-  tryParseSVEPattern(OperandVector &Operands);
+  OperandMatchResultTy tryParseSVEPattern(OperandVector &Operands);
 
 public:
   enum AArch64MatchResultTy {
     Match_InvalidSuffix = FIRST_TARGET_MATCH_RESULT_TY,
 #define GET_OPERAND_DIAGNOSTIC_TYPES
 #include "AArch64GenAsmMatcher.inc"
   };
   bool IsILP32;
bool AArch64AsmParser::showMatchError(SMLoc Loc, unsigned ErrCode,
   case Match_InvalidComplexRotationOdd:
     return Error(Loc, "complex rotation must be 90 or 270.");
   case Match_MnemonicFail: {
     std::string Suggestion = AArch64MnemonicSpellCheck(
         ((AArch64Operand &)*Operands[0]).getToken(),
         ComputeAvailableFeatures(STI->getFeatureBits()));
     return Error(Loc, "unrecognized instruction mnemonic" + Suggestion);
   }
+  case Match_InvalidSVEPattern:
+    return Error(Loc, "invalid predicate pattern");
   case Match_InvalidSVEPredicateAnyReg:
   case Match_InvalidSVEPredicateBReg:
   case Match_InvalidSVEPredicateHReg:
   case Match_InvalidSVEPredicateSReg:
   case Match_InvalidSVEPredicateDReg:
     return Error(Loc, "invalid predicate register.");
   case Match_InvalidSVEPredicate3bAnyReg:
   case Match_InvalidSVEPredicate3bBReg:
bool AArch64AsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
   case Match_InvalidIndexB:
   case Match_InvalidIndexH:
   case Match_InvalidIndexS:
   case Match_InvalidIndexD:
   case Match_InvalidLabel:
   case Match_InvalidComplexRotationEven:
   case Match_InvalidComplexRotationOdd:
   case Match_InvalidSVEPredicateAnyReg:
+  case Match_InvalidSVEPattern:
   case Match_InvalidSVEPredicateBReg:
   case Match_InvalidSVEPredicateHReg:
   case Match_InvalidSVEPredicateSReg:
   case Match_InvalidSVEPredicateDReg:
   case Match_InvalidSVEPredicate3bAnyReg:
   case Match_InvalidSVEPredicate3bBReg:
   case Match_InvalidSVEPredicate3bHReg:
   case Match_InvalidSVEPredicate3bSReg:

lib/Target/AArch64/SVEInstrFormats.td

 //=-- SVEInstrFormats.td -  AArch64 SVE Instruction classes -*- tablegen -*--=//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // AArch64 Scalable Vector Extension (SVE) Instruction Class Definitions.
 //
 //===----------------------------------------------------------------------===//
 
+def SVEPatternOperand : AsmOperandClass {
+  let Name = "SVEPattern";
+  let ParserMethod = "tryParseSVEPattern";
+  let PredicateMethod = "isSVEPattern";
+  let RenderMethod = "addImmOperands";
+  let DiagnosticType = "InvalidSVEPattern";
+}
+
+def sve_pred_enum : Operand<i32>, ImmLeaf<i32, [{
+  return (((uint32_t)Imm) < 32);
+  }]> {
+
+  let PrintMethod = "printSVEPattern";
+  let ParserMatchClass = SVEPatternOperand;
+}
+
+//===----------------------------------------------------------------------===//
+// SVE PTrue - These are used extensively throughout the pattern matching so
+//             it's important we define them first.
+//===----------------------------------------------------------------------===//
+
+class sve_int_ptrue<bits<2> sz8_64, bits<3> opc, string asm, PPRRegOp pprty>
+: I<(outs pprty:$Pd), (ins sve_pred_enum:$pattern),
+  asm, "\t$Pd, $pattern",
+  "",
+  []>, Sched<[]> {
+  bits<4> Pd;
+  bits<5> pattern;
+  let Inst{31-24} = 0b00100101;
+  let Inst{23-22} = sz8_64;
+  let Inst{21-19} = 0b011;
+  let Inst{18-17} = opc{2-1};
+  let Inst{16}    = opc{0};
+  let Inst{15-10} = 0b111000;
+  let Inst{9-5}   = pattern;
+  let Inst{4}     = 0b0;
+  let Inst{3-0}   = Pd;
+
+  let Defs = !if(!eq (opc{0}, 1), [NZCV], []);
+}
+
+multiclass sve_int_ptrue<bits<3> opc, string asm> {
+  def _B : sve_int_ptrue<0b00, opc, asm, PPR8>;
+  def _H : sve_int_ptrue<0b01, opc, asm, PPR16>;
+  def _S : sve_int_ptrue<0b10, opc, asm, PPR32>;
+  def _D : sve_int_ptrue<0b11, opc, asm, PPR64>;
+
+  def : InstAlias<asm # "\t$Pd",
+                  (!cast<Instruction>(NAME # _B) PPR8:$Pd, 0b11111), 1>;
+  def : InstAlias<asm # "\t$Pd",
+                  (!cast<Instruction>(NAME # _H) PPR16:$Pd, 0b11111), 1>;
+  def : InstAlias<asm # "\t$Pd",
+                  (!cast<Instruction>(NAME # _S) PPR32:$Pd, 0b11111), 1>;
+  def : InstAlias<asm # "\t$Pd",
+                  (!cast<Instruction>(NAME # _D) PPR64:$Pd, 0b11111), 1>;
+}
+
+let Predicates = [HasSVE] in {
+  defm PTRUE  : sve_int_ptrue<0b000, "ptrue">;
+  defm PTRUES : sve_int_ptrue<0b001, "ptrues">;
+}
+
 //===----------------------------------------------------------------------===//
 // SVE Integer Arithmetic -  Unpredicated Group.
 //===----------------------------------------------------------------------===//
 
 class sve_int_bin_cons_arit_0<bits<2> sz8_64, bits<3> opc, string asm,
                               ZPRRegOp zprty>
 : I<(outs zprty:$Zd), (ins zprty:$Zn, zprty:$Zm),
   asm, "\t$Zd, $Zn, $Zm",
: I<(outs pprty:$Pd), (ins pprty:$Pn, pprty:$Pm),
   let Inst{3-0}   = Pd;
 }
 
 multiclass sve_int_perm_bin_perm_pp<bits<3> opc, string asm> {
   def _B : sve_int_perm_bin_perm_pp<opc, 0b00, asm, PPR8>;
   def _H : sve_int_perm_bin_perm_pp<opc, 0b01, asm, PPR16>;
   def _S : sve_int_perm_bin_perm_pp<opc, 0b10, asm, PPR32>;
   def _D : sve_int_perm_bin_perm_pp<opc, 0b11, asm, PPR64>;
-}
+}
 

test/MC/AArch64/SVE/ptrue-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve  2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+//  Invalid pattern name
+// --------------------------------------------------------------------------//
+
+ptrue p0.s, vl512
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrue p0.s, vl512
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+ptrue p0.s, vl9
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrue p0.s, vl9
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+//  Invalid immediate range
+// --------------------------------------------------------------------------//
+
+ptrue p0.s, #-1
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrue p0.s, #-1
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+ptrue p0.s, #32
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrue p0.s, #32
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:

test/MC/AArch64/SVE/ptrue.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve < %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=+sve < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+// ---------------------------------------------------------------------------//
+// Test all predicate sizes for pow2 pattern
+// ---------------------------------------------------------------------------//
+
+ptrue   p0.b, pow2
+// CHECK-INST: ptrue   p0.b, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x18,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 18 25 <unknown>
+
+ptrue   p0.h, pow2
+// CHECK-INST: ptrue   p0.h, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x58,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 58 25 <unknown>
+
+ptrue   p0.s, pow2
+// CHECK-INST: ptrue   p0.s, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 98 25 <unknown>
+
+ptrue   p0.d, pow2
+// CHECK-INST: ptrue   p0.d, pow2
+// CHECK-ENCODING: [0x00,0xe0,0xd8,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 d8 25 <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test all predicate sizes without explicit pattern
+// ---------------------------------------------------------------------------//
+
+ptrue   p15.b
+// CHECK-INST: ptrue   p15.b
+// CHECK-ENCODING: [0xef,0xe3,0x18,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 18 25 <unknown>
+
+ptrue   p15.h
+// CHECK-INST: ptrue   p15.h
+// CHECK-ENCODING: [0xef,0xe3,0x58,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 58 25 <unknown>
+
+ptrue   p15.s
+// CHECK-INST: ptrue   p15.s
+// CHECK-ENCODING: [0xef,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 98 25 <unknown>
+
+ptrue   p15.d
+// CHECK-INST: ptrue   p15.d
+// CHECK-ENCODING: [0xef,0xe3,0xd8,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 d8 25 <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test available patterns
+// ---------------------------------------------------------------------------//
+
+ptrue   p7.s, #1
+// CHECK-INST: ptrue   p7.s, vl1
+// CHECK-ENCODING: [0x27,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e0 98 25 <unknown>
+
+ptrue   p7.s, vl1
+// CHECK-INST: ptrue   p7.s, vl1
+// CHECK-ENCODING: [0x27,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e0 98 25 <unknown>
+
+ptrue   p7.s, vl2
+// CHECK-INST: ptrue   p7.s, vl2
+// CHECK-ENCODING: [0x47,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e0 98 25 <unknown>
+
+ptrue   p7.s, vl3
+// CHECK-INST: ptrue   p7.s, vl3
+// CHECK-ENCODING: [0x67,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e0 98 25 <unknown>
+
+ptrue   p7.s, vl4
+// CHECK-INST: ptrue   p7.s, vl4
+// CHECK-ENCODING: [0x87,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e0 98 25 <unknown>
+
+ptrue   p7.s, vl5
+// CHECK-INST: ptrue   p7.s, vl5
+// CHECK-ENCODING: [0xa7,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e0 98 25 <unknown>
+
+ptrue   p7.s, vl6
+// CHECK-INST: ptrue   p7.s, vl6
+// CHECK-ENCODING: [0xc7,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e0 98 25 <unknown>
+
+ptrue   p7.s, vl7
+// CHECK-INST: ptrue   p7.s, vl7
+// CHECK-ENCODING: [0xe7,0xe0,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e0 98 25 <unknown>
+
+ptrue   p7.s, vl8
+// CHECK-INST: ptrue   p7.s, vl8
+// CHECK-ENCODING: [0x07,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e1 98 25 <unknown>
+
+ptrue   p7.s, vl16
+// CHECK-INST: ptrue   p7.s, vl16
+// CHECK-ENCODING: [0x27,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e1 98 25 <unknown>
+
+ptrue   p7.s, vl32
+// CHECK-INST: ptrue   p7.s, vl32
+// CHECK-ENCODING: [0x47,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e1 98 25 <unknown>
+
+ptrue   p7.s, vl64
+// CHECK-INST: ptrue   p7.s, vl64
+// CHECK-ENCODING: [0x67,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e1 98 25 <unknown>
+
+ptrue   p7.s, vl128
+// CHECK-INST: ptrue   p7.s, vl128
+// CHECK-ENCODING: [0x87,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e1 98 25 <unknown>
+
+ptrue   p7.s, vl256
+// CHECK-INST: ptrue   p7.s, vl256
+// CHECK-ENCODING: [0xa7,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e1 98 25 <unknown>
+
+ptrue   p7.s, mul4
+// CHECK-INST: ptrue   p7.s, mul4
+// CHECK-ENCODING: [0xa7,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e3 98 25 <unknown>
+
+ptrue   p7.s, mul3
+// CHECK-INST: ptrue   p7.s, mul3
+// CHECK-ENCODING: [0xc7,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e3 98 25 <unknown>
+
+ptrue   p7.s, all
+// CHECK-INST: ptrue   p7.s
+// CHECK-ENCODING: [0xe7,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e3 98 25 <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test immediate values not corresponding to a named pattern
+// ---------------------------------------------------------------------------//
+
+ptrue   p7.s, #14
+// CHECK-INST: ptrue   p7.s, #14
+// CHECK-ENCODING: [0xc7,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e1 98 25 <unknown>
+
+ptrue   p7.s, #15
+// CHECK-INST: ptrue   p7.s, #15
+// CHECK-ENCODING: [0xe7,0xe1,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e1 98 25 <unknown>
+
+ptrue   p7.s, #16
+// CHECK-INST: ptrue   p7.s, #16
+// CHECK-ENCODING: [0x07,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e2 98 25 <unknown>
+
+ptrue   p7.s, #17
+// CHECK-INST: ptrue   p7.s, #17
+// CHECK-ENCODING: [0x27,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e2 98 25 <unknown>
+
+ptrue   p7.s, #18
+// CHECK-INST: ptrue   p7.s, #18
+// CHECK-ENCODING: [0x47,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e2 98 25 <unknown>
+
+ptrue   p7.s, #19
+// CHECK-INST: ptrue   p7.s, #19
+// CHECK-ENCODING: [0x67,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e2 98 25 <unknown>
+
+ptrue   p7.s, #20
+// CHECK-INST: ptrue   p7.s, #20
+// CHECK-ENCODING: [0x87,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e2 98 25 <unknown>
+
+ptrue   p7.s, #21
+// CHECK-INST: ptrue   p7.s, #21
+// CHECK-ENCODING: [0xa7,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e2 98 25 <unknown>
+
+ptrue   p7.s, #22
+// CHECK-INST: ptrue   p7.s, #22
+// CHECK-ENCODING: [0xc7,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e2 98 25 <unknown>
+
+ptrue   p7.s, #23
+// CHECK-INST: ptrue   p7.s, #23
+// CHECK-ENCODING: [0xe7,0xe2,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e2 98 25 <unknown>
+
+ptrue   p7.s, #24
+// CHECK-INST: ptrue   p7.s, #24
+// CHECK-ENCODING: [0x07,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e3 98 25 <unknown>
+
+ptrue   p7.s, #25
+// CHECK-INST: ptrue   p7.s, #25
+// CHECK-ENCODING: [0x27,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e3 98 25 <unknown>
+
+ptrue   p7.s, #26
+// CHECK-INST: ptrue   p7.s, #26
+// CHECK-ENCODING: [0x47,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e3 98 25 <unknown>
+
+ptrue   p7.s, #27
+// CHECK-INST: ptrue   p7.s, #27
+// CHECK-ENCODING: [0x67,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e3 98 25 <unknown>
+
+ptrue   p7.s, #28
+// CHECK-INST: ptrue   p7.s, #28
+// CHECK-ENCODING: [0x87,0xe3,0x98,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e3 98 25 <unknown>

test/MC/AArch64/SVE/ptrues-diagnostics.s

+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve  2>&1 < %s| FileCheck %s
+
+// --------------------------------------------------------------------------//
+//  Invalid pattern name
+// --------------------------------------------------------------------------//
+
+ptrues p0.s, vl512
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrues p0.s, vl512
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+ptrues p0.s, vl9
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrues p0.s, vl9
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+// --------------------------------------------------------------------------//
+//  Invalid immediate range
+// --------------------------------------------------------------------------//
+
+ptrues p0.s, #-1
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrues p0.s, #-1
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:
+
+ptrues p0.s, #32
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid predicate pattern
+// CHECK-NEXT: ptrues p0.s, #32
+// CHECK-NOT: [[@LINE-3]]:{{[0-9]+}}:

test/MC/AArch64/SVE/ptrues.s

+// RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sve < %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=+sve < %s \
+// RUN:        | llvm-objdump -d -mattr=+sve - | FileCheck %s --check-prefix=CHECK-INST
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sve < %s \
+// RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+
+// ---------------------------------------------------------------------------//
+// Test all predicate sizes for pow2 pattern
+// ---------------------------------------------------------------------------//
+
+ptrues   p0.b, pow2
+// CHECK-INST: ptrues   p0.b, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x19,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 19 25  <unknown>
+
+ptrues   p0.h, pow2
+// CHECK-INST: ptrues   p0.h, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x59,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 59 25  <unknown>
+
+ptrues   p0.s, pow2
+// CHECK-INST: ptrues   p0.s, pow2
+// CHECK-ENCODING: [0x00,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 99 25  <unknown>
+
+ptrues   p0.d, pow2
+// CHECK-INST: ptrues   p0.d, pow2
+// CHECK-ENCODING: [0x00,0xe0,0xd9,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 00 e0 d9 25  <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test all predicate sizes without explicit pattern
+// ---------------------------------------------------------------------------//
+
+ptrues   p15.b
+// CHECK-INST: ptrues   p15.b
+// CHECK-ENCODING: [0xef,0xe3,0x19,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 19 25  <unknown>
+
+ptrues   p15.h
+// CHECK-INST: ptrues   p15.h
+// CHECK-ENCODING: [0xef,0xe3,0x59,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 59 25  <unknown>
+
+ptrues   p15.s
+// CHECK-INST: ptrues   p15.s
+// CHECK-ENCODING: [0xef,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 99 25  <unknown>
+
+ptrues   p15.d
+// CHECK-INST: ptrues   p15.d
+// CHECK-ENCODING: [0xef,0xe3,0xd9,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: ef e3 d9 25  <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test available patterns
+// ---------------------------------------------------------------------------//
+
+ptrues   p7.s, #1
+// CHECK-INST: ptrues   p7.s, vl1
+// CHECK-ENCODING: [0x27,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e0 99 25  <unknown>
+
+ptrues   p7.s, vl1
+// CHECK-INST: ptrues   p7.s, vl1
+// CHECK-ENCODING: [0x27,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e0 99 25  <unknown>
+
+ptrues   p7.s, vl2
+// CHECK-INST: ptrues   p7.s, vl2
+// CHECK-ENCODING: [0x47,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e0 99 25  <unknown>
+
+ptrues   p7.s, vl3
+// CHECK-INST: ptrues   p7.s, vl3
+// CHECK-ENCODING: [0x67,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e0 99 25  <unknown>
+
+ptrues   p7.s, vl4
+// CHECK-INST: ptrues   p7.s, vl4
+// CHECK-ENCODING: [0x87,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e0 99 25  <unknown>
+
+ptrues   p7.s, vl5
+// CHECK-INST: ptrues   p7.s, vl5
+// CHECK-ENCODING: [0xa7,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e0 99 25  <unknown>
+
+ptrues   p7.s, vl6
+// CHECK-INST: ptrues   p7.s, vl6
+// CHECK-ENCODING: [0xc7,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e0 99 25  <unknown>
+
+ptrues   p7.s, vl7
+// CHECK-INST: ptrues   p7.s, vl7
+// CHECK-ENCODING: [0xe7,0xe0,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e0 99 25  <unknown>
+
+ptrues   p7.s, vl8
+// CHECK-INST: ptrues   p7.s, vl8
+// CHECK-ENCODING: [0x07,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e1 99 25  <unknown>
+
+ptrues   p7.s, vl16
+// CHECK-INST: ptrues   p7.s, vl16
+// CHECK-ENCODING: [0x27,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e1 99 25  <unknown>
+
+ptrues   p7.s, vl32
+// CHECK-INST: ptrues   p7.s, vl32
+// CHECK-ENCODING: [0x47,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e1 99 25  <unknown>
+
+ptrues   p7.s, vl64
+// CHECK-INST: ptrues   p7.s, vl64
+// CHECK-ENCODING: [0x67,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e1 99 25  <unknown>
+
+ptrues   p7.s, vl128
+// CHECK-INST: ptrues   p7.s, vl128
+// CHECK-ENCODING: [0x87,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e1 99 25  <unknown>
+
+ptrues   p7.s, vl256
+// CHECK-INST: ptrues   p7.s, vl256
+// CHECK-ENCODING: [0xa7,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e1 99 25  <unknown>
+
+ptrues   p7.s, mul4
+// CHECK-INST: ptrues   p7.s, mul4
+// CHECK-ENCODING: [0xa7,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e3 99 25  <unknown>
+
+ptrues   p7.s, mul3
+// CHECK-INST: ptrues   p7.s, mul3
+// CHECK-ENCODING: [0xc7,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e3 99 25  <unknown>
+
+ptrues   p7.s, all
+// CHECK-INST: ptrues   p7.s
+// CHECK-ENCODING: [0xe7,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e3 99 25  <unknown>
+
+// ---------------------------------------------------------------------------//
+// Test immediate values not corresponding to a named pattern
+// ---------------------------------------------------------------------------//
+
+ptrues   p7.s, #14
+// CHECK-INST: ptrues   p7.s, #14
+// CHECK-ENCODING: [0xc7,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e1 99 25 <unknown>
+
+ptrues   p7.s, #15
+// CHECK-INST: ptrues   p7.s, #15
+// CHECK-ENCODING: [0xe7,0xe1,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e1 99 25 <unknown>
+
+ptrues   p7.s, #16
+// CHECK-INST: ptrues   p7.s, #16
+// CHECK-ENCODING: [0x07,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e2 99 25 <unknown>
+
+ptrues   p7.s, #17
+// CHECK-INST: ptrues   p7.s, #17
+// CHECK-ENCODING: [0x27,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e2 99 25 <unknown>
+
+ptrues   p7.s, #18
+// CHECK-INST: ptrues   p7.s, #18
+// CHECK-ENCODING: [0x47,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e2 99 25 <unknown>
+
+ptrues   p7.s, #19
+// CHECK-INST: ptrues   p7.s, #19
+// CHECK-ENCODING: [0x67,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e2 99 25 <unknown>
+
+ptrues   p7.s, #20
+// CHECK-INST: ptrues   p7.s, #20
+// CHECK-ENCODING: [0x87,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e2 99 25 <unknown>
+
+ptrues   p7.s, #21
+// CHECK-INST: ptrues   p7.s, #21
+// CHECK-ENCODING: [0xa7,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: a7 e2 99 25 <unknown>
+
+ptrues   p7.s, #22
+// CHECK-INST: ptrues   p7.s, #22
+// CHECK-ENCODING: [0xc7,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c7 e2 99 25 <unknown>
+
+ptrues   p7.s, #23
+// CHECK-INST: ptrues   p7.s, #23
+// CHECK-ENCODING: [0xe7,0xe2,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: e7 e2 99 25 <unknown>
+
+ptrues   p7.s, #24
+// CHECK-INST: ptrues   p7.s, #24
+// CHECK-ENCODING: [0x07,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 07 e3 99 25 <unknown>
+
+ptrues   p7.s, #25
+// CHECK-INST: ptrues   p7.s, #25
+// CHECK-ENCODING: [0x27,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 27 e3 99 25 <unknown>
+
+ptrues   p7.s, #26
+// CHECK-INST: ptrues   p7.s, #26
+// CHECK-ENCODING: [0x47,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 47 e3 99 25 <unknown>
+
+ptrues   p7.s, #27
+// CHECK-INST: ptrues   p7.s, #27
+// CHECK-ENCODING: [0x67,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 67 e3 99 25 <unknown>
+
+ptrues   p7.s, #28
+// CHECK-INST: ptrues   p7.s, #28
+// CHECK-ENCODING: [0x87,0xe3,0x99,0x25]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: 87 e3 99 25 <unknown>