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Recommit r322073: [AArch64][SVE] Asm: Add predicated ADD/SUB instructions

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Fixed issue that was found on sanitizer-x86_64-linux-fast.
I changed the result type of 'Parser.getTok().getString().lower()'
in AArch64AsmParser::tryParseSVEPredicateVector() from 'StringRef' to
'auto', since StringRef::lower() returns a std::string.

llvm-svn: 322092
This commit is contained in:
Sander de Smalen 2018-01-09 17:01:27 +00:00
parent 3a6b18f0a0
commit d839b92957
8 changed files with 300 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Target/AArch64/AArch64SVEInstrInfo.td
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@ -15,6 +15,9 @@ let Predicates = [HasSVE] in {
defm ADD_ZZZ : sve_int_bin_cons_arit_0<0b000, "add">;
defm SUB_ZZZ : sve_int_bin_cons_arit_0<0b001, "sub">;
defm ADD_ZPmZ : sve_int_bin_pred_arit_0<0b000, "add">;
defm SUB_ZPmZ : sve_int_bin_pred_arit_0<0b001, "sub">;
defm ZIP1_ZZZ : sve_int_perm_bin_perm_zz<0b000, "zip1">;
defm ZIP2_ZZZ : sve_int_perm_bin_perm_zz<0b001, "zip2">;

2
lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
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@ -2826,7 +2826,7 @@ AArch64AsmParser::tryParseSVEPredicateVector(OperandVector &Operands) {
Parser.Lex(); // Eat the slash.
// Zeroing or merging?
StringRef Pred = Parser.getTok().getString().lower();
auto Pred = Parser.getTok().getString().lower();
if (Pred != "z" && Pred != "m") {
Error(getLoc(), "expecting 'm' or 'z' predication");
return MatchOperand_ParseFail;

6
lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
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@ -91,9 +91,9 @@ static DecodeStatus DecodeZPRRegisterClass(MCInst &Inst, unsigned RegNo,
static DecodeStatus DecodePPRRegisterClass(MCInst &Inst, unsigned RegNo,
uint64_t Address,
const void *Decode);
LLVM_ATTRIBUTE_UNUSED static DecodeStatus
DecodePPR_3bRegisterClass(llvm::MCInst &Inst, unsigned RegNo, uint64_t Address,
const void *Decode);
static DecodeStatus DecodePPR_3bRegisterClass(MCInst &Inst, unsigned RegNo,
uint64_t Address,
const void *Decode);
static DecodeStatus DecodeFixedPointScaleImm32(MCInst &Inst, unsigned Imm,
uint64_t Address,

31
lib/Target/AArch64/SVEInstrFormats.td
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@ -70,6 +70,37 @@ multiclass sve_int_perm_bin_perm_zz<bits<3> opc, string asm> {
def _D : sve_int_perm_bin_perm_zz<opc, 0b11, asm, ZPR64>;
}
//===----------------------------------------------------------------------===//
// SVE Integer Arithmetic - Binary Predicated Group
//===----------------------------------------------------------------------===//
class sve_int_bin_pred_arit_log<bits<2> sz8_64, bits<2> fmt, bits<3> opc,
string asm, ZPRRegOp zprty>
: I<(outs zprty:$Zdn), (ins PPR3bAny:$Pg, zprty:$_Zdn, zprty:$Zm),
asm, "\t$Zdn, $Pg/m, $_Zdn, $Zm", "", []>, Sched<[]> {
bits<3> Pg;
bits<5> Zdn;
bits<5> Zm;
let Inst{31-24} = 0b00000100;
let Inst{23-22} = sz8_64;
let Inst{21} = 0b0;
let Inst{20-19} = fmt;
let Inst{18-16} = opc;
let Inst{15-13} = 0b000;
let Inst{12-10} = Pg;
let Inst{9-5} = Zm;
let Inst{4-0} = Zdn;
let Constraints = "$Zdn = $_Zdn";
}
multiclass sve_int_bin_pred_arit_0<bits<3> opc, string asm> {
def _B : sve_int_bin_pred_arit_log<0b00, 0b00, opc, asm, ZPR8>;
def _H : sve_int_bin_pred_arit_log<0b01, 0b00, opc, asm, ZPR16>;
def _S : sve_int_bin_pred_arit_log<0b10, 0b00, opc, asm, ZPR32>;
def _D : sve_int_bin_pred_arit_log<0b11, 0b00, opc, asm, ZPR64>;
}
//===----------------------------------------------------------------------===//
// SVE Permute - Predicates Group
//===----------------------------------------------------------------------===//

35
test/MC/AArch64/SVE/add-diagnostics.s
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@ -17,3 +17,38 @@ add z27.h, z11.h, z27.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
// CHECK-NEXT: add z27.h, z11.h, z27.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// Invalid predicate suffix '/a'
add z29.d, p7/a, z29.d, z8.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: expecting 'm' or 'z' predication
// CHECK-NEXT: add z29.d, p7/a, z29.d, z8.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// Missing predicate suffix
add z29.d, p7, z29.d, z8.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
// CHECK-NEXT: add z29.d, p7, z29.d, z8.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// --------------------------------------------------------------------------//
// error: restricted predicate has range [0, 7].
add z22.b, p8/m, z22.b, z11.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: add z22.b, p8/m, z22.b, z11.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
add z22.h, p8/m, z22.h, z6.h
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: add z22.h, p8/m, z22.h, z6.h
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
add z30.s, p8/m, z30.s, z13.s
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: add z30.s, p8/m, z30.s, z13.s
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
add z29.d, p8/m, z29.d, z8.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: add z29.d, p8/m, z29.d, z8.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

96
test/MC/AArch64/SVE/add.s
View File

@ -19,6 +19,12 @@ add z23.d, z13.d, z8.d
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 01 e8 04 <unknown>
add z23.b, p3/m, z23.b, z13.b
// CHECK-INST: add z23.b, p3/m, z23.b, z13.b
// CHECK-ENCODING: [0xb7,0x0d,0x00,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 00 04 <unknown>
add z0.s, z0.s, z0.s
// CHECK-INST: add z0.s, z0.s, z0.s
// CHECK-ENCODING: [0x00,0x00,0xa0,0x04]
@ -43,12 +49,30 @@ add z31.b, z31.b, z31.b
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 03 3f 04 <unknown>
add z0.h, p0/m, z0.h, z0.h
// CHECK-INST: add z0.h, p0/m, z0.h, z0.h
// CHECK-ENCODING: [0x00,0x00,0x40,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 40 04 <unknown>
add z0.h, z0.h, z0.h
// CHECK-INST: add z0.h, z0.h, z0.h
// CHECK-ENCODING: [0x00,0x00,0x60,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 60 04 <unknown>
add z0.b, p0/m, z0.b, z0.b
// CHECK-INST: add z0.b, p0/m, z0.b, z0.b
// CHECK-ENCODING: [0x00,0x00,0x00,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 00 04 <unknown>
add z0.s, p0/m, z0.s, z0.s
// CHECK-INST: add z0.s, p0/m, z0.s, z0.s
// CHECK-ENCODING: [0x00,0x00,0x80,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 80 04 <unknown>
add z23.b, z13.b, z8.b
// CHECK-INST: add z23.b, z13.b, z8.b
// CHECK-ENCODING: [0xb7,0x01,0x28,0x04]
@ -61,6 +85,12 @@ add z0.d, z0.d, z0.d
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 e0 04 <unknown>
add z0.d, p0/m, z0.d, z0.d
// CHECK-INST: add z0.d, p0/m, z0.d, z0.d
// CHECK-ENCODING: [0x00,0x00,0xc0,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 c0 04 <unknown>
add z31.h, z31.h, z31.h
// CHECK-INST: add z31.h, z31.h, z31.h
// CHECK-ENCODING: [0xff,0x03,0x7f,0x04]
@ -79,24 +109,90 @@ add z21.d, z10.d, z21.d
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 01 f5 04 <unknown>
add z23.h, p3/m, z23.h, z13.h
// CHECK-INST: add z23.h, p3/m, z23.h, z13.h
// CHECK-ENCODING: [0xb7,0x0d,0x40,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 40 04 <unknown>
add z23.s, p3/m, z23.s, z13.s
// CHECK-INST: add z23.s, p3/m, z23.s, z13.s
// CHECK-ENCODING: [0xb7,0x0d,0x80,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 80 04 <unknown>
add z31.s, p7/m, z31.s, z31.s
// CHECK-INST: add z31.s, p7/m, z31.s, z31.s
// CHECK-ENCODING: [0xff,0x1f,0x80,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 80 04 <unknown>
add z21.h, z10.h, z21.h
// CHECK-INST: add z21.h, z10.h, z21.h
// CHECK-ENCODING: [0x55,0x01,0x75,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 01 75 04 <unknown>
add z23.d, p3/m, z23.d, z13.d
// CHECK-INST: add z23.d, p3/m, z23.d, z13.d
// CHECK-ENCODING: [0xb7,0x0d,0xc0,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d c0 04 <unknown>
add z21.d, p5/m, z21.d, z10.d
// CHECK-INST: add z21.d, p5/m, z21.d, z10.d
// CHECK-ENCODING: [0x55,0x15,0xc0,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 c0 04 <unknown>
add z21.b, p5/m, z21.b, z10.b
// CHECK-INST: add z21.b, p5/m, z21.b, z10.b
// CHECK-ENCODING: [0x55,0x15,0x00,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 00 04 <unknown>
add z21.s, z10.s, z21.s
// CHECK-INST: add z21.s, z10.s, z21.s
// CHECK-ENCODING: [0x55,0x01,0xb5,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 01 b5 04 <unknown>
add z21.h, p5/m, z21.h, z10.h
// CHECK-INST: add z21.h, p5/m, z21.h, z10.h
// CHECK-ENCODING: [0x55,0x15,0x40,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 40 04 <unknown>
add z31.h, p7/m, z31.h, z31.h
// CHECK-INST: add z31.h, p7/m, z31.h, z31.h
// CHECK-ENCODING: [0xff,0x1f,0x40,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 40 04 <unknown>
add z23.h, z13.h, z8.h
// CHECK-INST: add z23.h, z13.h, z8.h
// CHECK-ENCODING: [0xb7,0x01,0x68,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 01 68 04 <unknown>
add z31.d, p7/m, z31.d, z31.d
// CHECK-INST: add z31.d, p7/m, z31.d, z31.d
// CHECK-ENCODING: [0xff,0x1f,0xc0,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f c0 04 <unknown>
add z21.s, p5/m, z21.s, z10.s
// CHECK-INST: add z21.s, p5/m, z21.s, z10.s
// CHECK-ENCODING: [0x55,0x15,0x80,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 80 04 <unknown>
add z31.b, p7/m, z31.b, z31.b
// CHECK-INST: add z31.b, p7/m, z31.b, z31.b
// CHECK-ENCODING: [0xff,0x1f,0x00,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 00 04 <unknown>
add z23.s, z13.s, z8.s
// CHECK-INST: add z23.s, z13.s, z8.s
// CHECK-ENCODING: [0xb7,0x01,0xa8,0x04]

35
test/MC/AArch64/SVE/sub-diagnostics.s
View File

@ -17,3 +17,38 @@ sub z0.h, z8.h, z8.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
// CHECK-NEXT: sub z0.h, z8.h, z8.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// Invalid predicate suffix '/a'
sub z29.d, p7/a, z29.d, z8.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: expecting 'm' or 'z' predication
// CHECK-NEXT: sub z29.d, p7/a, z29.d, z8.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// Missing predicate suffix
sub z29.d, p7, z29.d, z8.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand
// CHECK-NEXT: sub z29.d, p7, z29.d, z8.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
// --------------------------------------------------------------------------//
// error: restricted predicate has range [0, 7].
sub z26.b, p8/m, z26.b, z27.b
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: sub z26.b, p8/m, z26.b, z27.b
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
sub z14.h, p8/m, z14.h, z18.h
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: sub z14.h, p8/m, z14.h, z18.h
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
sub z30.s, p8/m, z30.s, z23.s
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: sub z30.s, p8/m, z30.s, z23.s
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
sub z29.d, p8/m, z29.d, z3.d
// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
// CHECK-NEXT: sub z29.d, p8/m, z29.d, z3.d
// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:

96
test/MC/AArch64/SVE/sub.s
View File

@ -19,6 +19,18 @@ sub z21.b, z10.b, z21.b
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 05 35 04 <unknown>
sub z31.d, p7/m, z31.d, z31.d
// CHECK-INST: sub z31.d, p7/m, z31.d, z31.d
// CHECK-ENCODING: [0xff,0x1f,0xc1,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f c1 04 <unknown>
sub z23.h, p3/m, z23.h, z13.h
// CHECK-INST: sub z23.h, p3/m, z23.h, z13.h
// CHECK-ENCODING: [0xb7,0x0d,0x41,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 41 04 <unknown>
sub z31.h, z31.h, z31.h
// CHECK-INST: sub z31.h, z31.h, z31.h
// CHECK-ENCODING: [0xff,0x07,0x7f,0x04]
@ -43,6 +55,12 @@ sub z0.s, z0.s, z0.s
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 04 a0 04 <unknown>
sub z23.s, p3/m, z23.s, z13.s
// CHECK-INST: sub z23.s, p3/m, z23.s, z13.s
// CHECK-ENCODING: [0xb7,0x0d,0x81,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 81 04 <unknown>
sub z23.b, z13.b, z8.b
// CHECK-INST: sub z23.b, z13.b, z8.b
// CHECK-ENCODING: [0xb7,0x05,0x28,0x04]
@ -61,6 +79,24 @@ sub z21.s, z10.s, z21.s
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 05 b5 04 <unknown>
sub z21.s, p5/m, z21.s, z10.s
// CHECK-INST: sub z21.s, p5/m, z21.s, z10.s
// CHECK-ENCODING: [0x55,0x15,0x81,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 81 04 <unknown>
sub z31.s, p7/m, z31.s, z31.s
// CHECK-INST: sub z31.s, p7/m, z31.s, z31.s
// CHECK-ENCODING: [0xff,0x1f,0x81,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 81 04 <unknown>
sub z0.d, p0/m, z0.d, z0.d
// CHECK-INST: sub z0.d, p0/m, z0.d, z0.d
// CHECK-ENCODING: [0x00,0x00,0xc1,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 c1 04 <unknown>
sub z0.b, z0.b, z0.b
// CHECK-INST: sub z0.b, z0.b, z0.b
// CHECK-ENCODING: [0x00,0x04,0x20,0x04]
@ -73,24 +109,60 @@ sub z23.d, z13.d, z8.d
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 05 e8 04 <unknown>
sub z23.d, p3/m, z23.d, z13.d
// CHECK-INST: sub z23.d, p3/m, z23.d, z13.d
// CHECK-ENCODING: [0xb7,0x0d,0xc1,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d c1 04 <unknown>
sub z23.s, z13.s, z8.s
// CHECK-INST: sub z23.s, z13.s, z8.s
// CHECK-ENCODING: [0xb7,0x05,0xa8,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 05 a8 04 <unknown>
sub z31.b, p7/m, z31.b, z31.b
// CHECK-INST: sub z31.b, p7/m, z31.b, z31.b
// CHECK-ENCODING: [0xff,0x1f,0x01,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 01 04 <unknown>
sub z0.h, p0/m, z0.h, z0.h
// CHECK-INST: sub z0.h, p0/m, z0.h, z0.h
// CHECK-ENCODING: [0x00,0x00,0x41,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 41 04 <unknown>
sub z31.d, z31.d, z31.d
// CHECK-INST: sub z31.d, z31.d, z31.d
// CHECK-ENCODING: [0xff,0x07,0xff,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 07 ff 04 <unknown>
sub z31.h, p7/m, z31.h, z31.h
// CHECK-INST: sub z31.h, p7/m, z31.h, z31.h
// CHECK-ENCODING: [0xff,0x1f,0x41,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 1f 41 04 <unknown>
sub z23.h, z13.h, z8.h
// CHECK-INST: sub z23.h, z13.h, z8.h
// CHECK-ENCODING: [0xb7,0x05,0x68,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 05 68 04 <unknown>
sub z21.b, p5/m, z21.b, z10.b
// CHECK-INST: sub z21.b, p5/m, z21.b, z10.b
// CHECK-ENCODING: [0x55,0x15,0x01,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 01 04 <unknown>
sub z21.d, p5/m, z21.d, z10.d
// CHECK-INST: sub z21.d, p5/m, z21.d, z10.d
// CHECK-ENCODING: [0x55,0x15,0xc1,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 c1 04 <unknown>
sub z0.d, z0.d, z0.d
// CHECK-INST: sub z0.d, z0.d, z0.d
// CHECK-ENCODING: [0x00,0x04,0xe0,0x04]
@ -102,3 +174,27 @@ sub z31.s, z31.s, z31.s
// CHECK-ENCODING: [0xff,0x07,0xbf,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: ff 07 bf 04 <unknown>
sub z0.b, p0/m, z0.b, z0.b
// CHECK-INST: sub z0.b, p0/m, z0.b, z0.b
// CHECK-ENCODING: [0x00,0x00,0x01,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 01 04 <unknown>
sub z0.s, p0/m, z0.s, z0.s
// CHECK-INST: sub z0.s, p0/m, z0.s, z0.s
// CHECK-ENCODING: [0x00,0x00,0x81,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 00 00 81 04 <unknown>
sub z21.h, p5/m, z21.h, z10.h
// CHECK-INST: sub z21.h, p5/m, z21.h, z10.h
// CHECK-ENCODING: [0x55,0x15,0x41,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: 55 15 41 04 <unknown>
sub z23.b, p3/m, z23.b, z13.b
// CHECK-INST: sub z23.b, p3/m, z23.b, z13.b
// CHECK-ENCODING: [0xb7,0x0d,0x01,0x04]
// CHECK-ERROR: instruction requires: sve
// CHECK-UNKNOWN: b7 0d 01 04 <unknown>