fixup! [AArch64][llvm] Add support for Permission Overlays Extension 2 (FEAT_S1POE2)

Address CR comments

Author: jthackray

llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

@@ -3955,6 +3955,8 @@ static const struct Extension {
     {"f16f32dot", {AArch64::FeatureF16F32DOT}},
     {"f16f32mm", {AArch64::FeatureF16F32MM}},
     {"poe2", {AArch64::FeatureS1POE2}},
+    {"tev", {AArch64::FeatureTEV}},
+    {"btie", {AArch64::FeatureBTIE}},
 };
 
 static void setRequiredFeatureString(FeatureBitset FBS, std::string &Str) {

llvm/test/MC/AArch64/arm-poe2-tlbid-diagnostics.s

@@ -53,7 +53,7 @@ plbi vmalle1isnxs, x0
 plbi vmalle1osnxs, x0
 // CHECK-ERROR: error: specified plbi op does not use a register
 
-
+// Tests where no optional register operand allowed
 plbi alle3, x0
 // CHECK-ERROR: error: specified plbi op does not use a register
 // CHECK-NO-REGISTER: error: specified plbi op does not use a register

llvm/test/MC/AArch64/arm-poe2-tlbid.s

@@ -2,9 +2,9 @@
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 // RUN: not llvm-mc -triple=aarch64 -show-encoding -mattr=+poe2 < %s 2>&1 \
 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
-// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+tlbid,+poe2 < %s \
 // RUN:        | llvm-objdump -d --mattr=+tlbid,+poe2 --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-INST
-// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+tlbid,+poe2 < %s \
 // RUN:        | llvm-objdump -d --mattr=-tlbid,-poe2 --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // Disassemble encoding and check the re-encoding (-show-encoding) matches.
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+tlbid,+poe2 < %s \

llvm/test/MC/AArch64/arm-poe2.s

@@ -2,9 +2,9 @@
 // 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=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+poe2 < %s \
 // RUN:        | llvm-objdump -d --mattr=+poe2 --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-INST
-// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+poe2 < %s \
 // RUN:        | llvm-objdump -d --mattr=-poe2 --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // Disassemble encoding and check the re-encoding (-show-encoding) matches.
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+poe2 < %s \

llvm/test/MC/AArch64/arm-tev.s

@@ -2,9 +2,9 @@
 // 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=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+tev < %s \
 // RUN:        | llvm-objdump -d --mattr=+tev --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-INST
-// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+all < %s \
+// RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+tev < %s \
 // RUN:        | llvm-objdump -d --mattr=-tev --no-print-imm-hex - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // Disassemble encoding and check the re-encoding (-show-encoding) matches.
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+tev < %s \