[llvm] r361230 - [AArch64][SVE2] Asm: add integer unary instructions (predicated)
Cullen Rhodes via llvm-commits
llvm-commits at lists.llvm.org
Tue May 21 02:06:52 PDT 2019
Author: c-rhodes
Date: Tue May 21 02:06:51 2019
New Revision: 361230
URL: http://llvm.org/viewvc/llvm-project?rev=361230&view=rev
Log:
[AArch64][SVE2] Asm: add integer unary instructions (predicated)
Summary:
Patch adds support for the following instructions:
* URECPE, URSQRTE, SQABS, SQNEG
The specification can be found here:
https://developer.arm.com/docs/ddi0602/latest
Reviewed By: SjoerdMeijer
Differential Revision: https://reviews.llvm.org/D62129
Added:
llvm/trunk/test/MC/AArch64/SVE2/sqabs-diagnostics.s
llvm/trunk/test/MC/AArch64/SVE2/sqabs.s
llvm/trunk/test/MC/AArch64/SVE2/sqneg-diagnostics.s
llvm/trunk/test/MC/AArch64/SVE2/sqneg.s
llvm/trunk/test/MC/AArch64/SVE2/urecpe-diagnostics.s
llvm/trunk/test/MC/AArch64/SVE2/urecpe.s
llvm/trunk/test/MC/AArch64/SVE2/ursqrte-diagnostics.s
llvm/trunk/test/MC/AArch64/SVE2/ursqrte.s
Modified:
llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td
Modified: llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td?rev=361230&r1=361229&r2=361230&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td Tue May 21 02:06:51 2019
@@ -1134,6 +1134,12 @@ let Predicates = [HasSVE2] in {
defm SMINP_ZPmZ : sve2_int_arith_pred<0b101101, "sminp">;
defm UMINP_ZPmZ : sve2_int_arith_pred<0b101111, "uminp">;
+ // SVE2 integer unary operations (predicated)
+ defm URECPE_ZPmZ : sve2_int_un_pred_arit_s<0b000, "urecpe">;
+ defm URSQRTE_ZPmZ : sve2_int_un_pred_arit_s<0b001, "ursqrte">;
+ defm SQABS_ZPmZ : sve2_int_un_pred_arit<0b100, "sqabs">;
+ defm SQNEG_ZPmZ : sve2_int_un_pred_arit<0b101, "sqneg">;
+
// SVE2 integer multiply long
defm SQDMULLB_ZZZ : sve2_wide_int_arith_long<0b11000, "sqdmullb">;
defm SQDMULLT_ZZZ : sve2_wide_int_arith_long<0b11001, "sqdmullt">;
Modified: llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td?rev=361230&r1=361229&r2=361230&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td (original)
+++ llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td Tue May 21 02:06:51 2019
@@ -2117,6 +2117,42 @@ multiclass sve2_int_sadd_long_accum_pair
def _D : sve2_int_sadd_long_accum_pairwise<0b11, U, asm, ZPR64, ZPR32>;
}
+class sve2_int_un_pred_arit<bits<2> sz, bit Q, bits<2> opc,
+ string asm, ZPRRegOp zprty>
+: I<(outs zprty:$Zd), (ins zprty:$_Zd, PPR3bAny:$Pg, zprty:$Zn),
+ asm, "\t$Zd, $Pg/m, $Zn",
+ "",
+ []>, Sched<[]> {
+ bits<3> Pg;
+ bits<5> Zd;
+ bits<5> Zn;
+ let Inst{31-24} = 0b01000100;
+ let Inst{23-22} = sz;
+ let Inst{21-20} = 0b00;
+ let Inst{19} = Q;
+ let Inst{18} = 0b0;
+ let Inst{17-16} = opc;
+ let Inst{15-13} = 0b101;
+ let Inst{12-10} = Pg;
+ let Inst{9-5} = Zn;
+ let Inst{4-0} = Zd;
+
+ let Constraints = "$Zd = $_Zd";
+ let DestructiveInstType = Destructive;
+ let ElementSize = zprty.ElementSize;
+}
+
+multiclass sve2_int_un_pred_arit_s<bits<3> opc, string asm> {
+ def _S : sve2_int_un_pred_arit<0b10, opc{2}, opc{1-0}, asm, ZPR32>;
+}
+
+multiclass sve2_int_un_pred_arit<bits<3> opc, string asm> {
+ def _B : sve2_int_un_pred_arit<0b00, opc{2}, opc{1-0}, asm, ZPR8>;
+ def _H : sve2_int_un_pred_arit<0b01, opc{2}, opc{1-0}, asm, ZPR16>;
+ def _S : sve2_int_un_pred_arit<0b10, opc{2}, opc{1-0}, asm, ZPR32>;
+ def _D : sve2_int_un_pred_arit<0b11, opc{2}, opc{1-0}, asm, ZPR64>;
+}
+
//===----------------------------------------------------------------------===//
// SVE2 Widening Integer Arithmetic Group
//===----------------------------------------------------------------------===//
Added: llvm/trunk/test/MC/AArch64/SVE2/sqabs-diagnostics.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/sqabs-diagnostics.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/sqabs-diagnostics.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/sqabs-diagnostics.s Tue May 21 02:06:51 2019
@@ -0,0 +1,23 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// ------------------------------------------------------------------------- //
+// Invalid predicate
+
+sqabs z0.s, p0/z, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: sqabs z0.s, p0/z, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+sqabs z0.s, p8/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: sqabs z0.s, p8/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// ------------------------------------------------------------------------- //
+// Invalid element width
+
+sqabs z0.b, p7/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: sqabs z0.b, p7/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
Added: llvm/trunk/test/MC/AArch64/SVE2/sqabs.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/sqabs.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/sqabs.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/sqabs.s Tue May 21 02:06:51 2019
@@ -0,0 +1,60 @@
+// 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
+
+sqabs z31.b, p7/m, z31.b
+// CHECK-INST: sqabs z31.b, p7/m, z31.b
+// CHECK-ENCODING: [0xff,0xbf,0x08,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 08 44 <unknown>
+
+sqabs z31.h, p7/m, z31.h
+// CHECK-INST: sqabs z31.h, p7/m, z31.h
+// CHECK-ENCODING: [0xff,0xbf,0x48,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 48 44 <unknown>
+
+sqabs z31.s, p7/m, z31.s
+// CHECK-INST: sqabs z31.s, p7/m, z31.s
+// CHECK-ENCODING: [0xff,0xbf,0x88,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 88 44 <unknown>
+
+sqabs z31.d, p7/m, z31.d
+// CHECK-INST: sqabs z31.d, p7/m, z31.d
+// CHECK-ENCODING: [0xff,0xbf,0xc8,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf c8 44 <unknown>
+
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z4.s, p7/z, z6.s
+// CHECK-INST: movprfx z4.s, p7/z, z6.s
+// CHECK-ENCODING: [0xc4,0x3c,0x90,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 3c 90 04 <unknown>
+
+sqabs z4.s, p7/m, z31.s
+// CHECK-INST: sqabs z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x88,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 88 44 <unknown>
+
+movprfx z4, z6
+// CHECK-INST: movprfx z4, z6
+// CHECK-ENCODING: [0xc4,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 bc 20 04 <unknown>
+
+sqabs z4.s, p7/m, z31.s
+// CHECK-INST: sqabs z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x88,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 88 44 <unknown>
Added: llvm/trunk/test/MC/AArch64/SVE2/sqneg-diagnostics.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/sqneg-diagnostics.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/sqneg-diagnostics.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/sqneg-diagnostics.s Tue May 21 02:06:51 2019
@@ -0,0 +1,23 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// ------------------------------------------------------------------------- //
+// Invalid predicate
+
+sqneg z0.s, p0/z, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: sqneg z0.s, p0/z, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+sqneg z0.s, p8/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: sqneg z0.s, p8/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// ------------------------------------------------------------------------- //
+// Invalid element width
+
+sqneg z0.b, p7/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: sqneg z0.b, p7/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
Added: llvm/trunk/test/MC/AArch64/SVE2/sqneg.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/sqneg.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/sqneg.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/sqneg.s Tue May 21 02:06:51 2019
@@ -0,0 +1,60 @@
+// 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
+
+sqneg z31.b, p7/m, z31.b
+// CHECK-INST: sqneg z31.b, p7/m, z31.b
+// CHECK-ENCODING: [0xff,0xbf,0x09,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 09 44 <unknown>
+
+sqneg z31.h, p7/m, z31.h
+// CHECK-INST: sqneg z31.h, p7/m, z31.h
+// CHECK-ENCODING: [0xff,0xbf,0x49,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 49 44 <unknown>
+
+sqneg z31.s, p7/m, z31.s
+// CHECK-INST: sqneg z31.s, p7/m, z31.s
+// CHECK-ENCODING: [0xff,0xbf,0x89,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 89 44 <unknown>
+
+sqneg z31.d, p7/m, z31.d
+// CHECK-INST: sqneg z31.d, p7/m, z31.d
+// CHECK-ENCODING: [0xff,0xbf,0xc9,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf c9 44 <unknown>
+
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z4.s, p7/z, z6.s
+// CHECK-INST: movprfx z4.s, p7/z, z6.s
+// CHECK-ENCODING: [0xc4,0x3c,0x90,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 3c 90 04 <unknown>
+
+sqneg z4.s, p7/m, z31.s
+// CHECK-INST: sqneg z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x89,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 89 44 <unknown>
+
+movprfx z4, z6
+// CHECK-INST: movprfx z4, z6
+// CHECK-ENCODING: [0xc4,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 bc 20 04 <unknown>
+
+sqneg z4.s, p7/m, z31.s
+// CHECK-INST: sqneg z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x89,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 89 44 <unknown>
Added: llvm/trunk/test/MC/AArch64/SVE2/urecpe-diagnostics.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/urecpe-diagnostics.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/urecpe-diagnostics.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/urecpe-diagnostics.s Tue May 21 02:06:51 2019
@@ -0,0 +1,33 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// ------------------------------------------------------------------------- //
+// Invalid predicate
+
+urecpe z0.s, p0/z, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: urecpe z0.s, p0/z, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+urecpe z0.s, p8/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: urecpe z0.s, p8/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// ------------------------------------------------------------------------- //
+// Invalid element width
+
+urecpe z0.b, p7/m, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: urecpe z0.b, p7/m, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+urecpe z0.h, p7/m, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: urecpe z0.h, p7/m, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+urecpe z0.d, p7/m, z1.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: urecpe z0.d, p7/m, z1.d
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
Added: llvm/trunk/test/MC/AArch64/SVE2/urecpe.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/urecpe.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/urecpe.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/urecpe.s Tue May 21 02:06:51 2019
@@ -0,0 +1,42 @@
+// 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
+
+urecpe z31.s, p7/m, z31.s
+// CHECK-INST: urecpe z31.s, p7/m, z31.s
+// CHECK-ENCODING: [0xff,0xbf,0x80,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 80 44 <unknown>
+
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z4.s, p7/z, z6.s
+// CHECK-INST: movprfx z4.s, p7/z, z6.s
+// CHECK-ENCODING: [0xc4,0x3c,0x90,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 3c 90 04 <unknown>
+
+urecpe z4.s, p7/m, z31.s
+// CHECK-INST: urecpe z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x80,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 80 44 <unknown>
+
+movprfx z4, z6
+// CHECK-INST: movprfx z4, z6
+// CHECK-ENCODING: [0xc4,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 bc 20 04 <unknown>
+
+urecpe z4.s, p7/m, z31.s
+// CHECK-INST: urecpe z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x80,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 80 44 <unknown>
Added: llvm/trunk/test/MC/AArch64/SVE2/ursqrte-diagnostics.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/ursqrte-diagnostics.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/ursqrte-diagnostics.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/ursqrte-diagnostics.s Tue May 21 02:06:51 2019
@@ -0,0 +1,33 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+sve2 2>&1 < %s| FileCheck %s
+
+// ------------------------------------------------------------------------- //
+// Invalid predicate
+
+ursqrte z0.s, p0/z, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+// CHECK-NEXT: ursqrte z0.s, p0/z, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ursqrte z0.s, p8/m, z1.s
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: restricted predicate has range [0, 7].
+// CHECK-NEXT: ursqrte z0.s, p8/m, z1.s
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+
+// ------------------------------------------------------------------------- //
+// Invalid element width
+
+ursqrte z0.b, p7/m, z1.b
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ursqrte z0.b, p7/m, z1.b
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ursqrte z0.h, p7/m, z1.h
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ursqrte z0.h, p7/m, z1.h
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
+
+ursqrte z0.d, p7/m, z1.d
+// CHECK: [[@LINE-1]]:{{[0-9]+}}: error: invalid element width
+// CHECK-NEXT: ursqrte z0.d, p7/m, z1.d
+// CHECK-NOT: [[@LINE-1]]:{{[0-9]+}}:
Added: llvm/trunk/test/MC/AArch64/SVE2/ursqrte.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/AArch64/SVE2/ursqrte.s?rev=361230&view=auto
==============================================================================
--- llvm/trunk/test/MC/AArch64/SVE2/ursqrte.s (added)
+++ llvm/trunk/test/MC/AArch64/SVE2/ursqrte.s Tue May 21 02:06:51 2019
@@ -0,0 +1,42 @@
+// 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
+
+ursqrte z31.s, p7/m, z31.s
+// CHECK-INST: ursqrte z31.s, p7/m, z31.s
+// CHECK-ENCODING: [0xff,0xbf,0x81,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: ff bf 81 44 <unknown>
+
+
+// --------------------------------------------------------------------------//
+// Test compatibility with MOVPRFX instruction.
+
+movprfx z4.s, p7/z, z6.s
+// CHECK-INST: movprfx z4.s, p7/z, z6.s
+// CHECK-ENCODING: [0xc4,0x3c,0x90,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 3c 90 04 <unknown>
+
+ursqrte z4.s, p7/m, z31.s
+// CHECK-INST: ursqrte z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x81,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 81 44 <unknown>
+
+movprfx z4, z6
+// CHECK-INST: movprfx z4, z6
+// CHECK-ENCODING: [0xc4,0xbc,0x20,0x04]
+// CHECK-ERROR: instruction requires: sve
+// CHECK-UNKNOWN: c4 bc 20 04 <unknown>
+
+ursqrte z4.s, p7/m, z31.s
+// CHECK-INST: ursqrte z4.s, p7/m, z31.s
+// CHECK-ENCODING: [0xe4,0xbf,0x81,0x44]
+// CHECK-ERROR: instruction requires: sve2
+// CHECK-UNKNOWN: e4 bf 81 44 <unknown>
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