This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG2b6691894ab6: [ARM][AArch64] Adding Neoverse N2 CPU support 
(authored by MarkMurrayARM).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91695/new/

https://reviews.llvm.org/D91695

Files:
  clang/test/Driver/aarch64-cpus.c
  clang/test/Driver/arm-cortex-cpus.c
  llvm/include/llvm/Support/AArch64TargetParser.def
  llvm/include/llvm/Support/ARMTargetParser.def
  llvm/lib/Support/Host.cpp
  llvm/lib/Target/AArch64/AArch64.td
  llvm/lib/Target/AArch64/AArch64Subtarget.cpp
  llvm/lib/Target/AArch64/AArch64Subtarget.h
  llvm/lib/Target/ARM/ARM.td
  llvm/lib/Target/ARM/ARMSubtarget.cpp
  llvm/lib/Target/ARM/ARMSubtarget.h
  llvm/test/CodeGen/AArch64/cpus.ll
  llvm/test/CodeGen/AArch64/neon-dot-product.ll
  llvm/test/CodeGen/AArch64/remat.ll
  llvm/test/MC/AArch64/armv8.2a-dotprod.s
  llvm/test/MC/AArch64/armv8.3a-rcpc.s
  llvm/test/MC/AArch64/armv8.5a-ssbs.s
  llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
  llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
  llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
  llvm/unittests/Support/TargetParserTest.cpp

Index: llvm/unittests/Support/TargetParserTest.cpp
===================================================================
--- llvm/unittests/Support/TargetParserTest.cpp
+++ llvm/unittests/Support/TargetParserTest.cpp
@@ -280,6 +280,12 @@
                         ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_FP16 |
                         ARM::AEK_RAS | ARM::AEK_DOTPROD,
                         "8.2-A"));
+  EXPECT_TRUE(testARMCPU("neoverse-n2", "armv8.5-a", "crypto-neon-fp-armv8",
+                         ARM::AEK_CRC | ARM::AEK_HWDIVTHUMB | ARM::AEK_HWDIVARM |
+                         ARM::AEK_MP | ARM::AEK_SEC | ARM::AEK_VIRT |
+                         ARM::AEK_DSP | ARM::AEK_BF16 | ARM::AEK_DOTPROD |
+                         ARM::AEK_RAS | ARM::AEK_I8MM | ARM::AEK_SB,
+                        "8.5-A"));
   EXPECT_TRUE(testARMCPU("neoverse-v1", "armv8.4-a", "crypto-neon-fp-armv8",
                          ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT |
                          ARM::AEK_HWDIVARM | ARM::AEK_HWDIVTHUMB |
@@ -328,7 +334,7 @@
                          "7-S"));
 }
 
-static constexpr unsigned NumARMCPUArchs = 90;
+static constexpr unsigned NumARMCPUArchs = 91;
 
 TEST(TargetParserTest, testARMCPUArchList) {
   SmallVector<StringRef, NumARMCPUArchs> List;
@@ -996,6 +1002,15 @@
       AArch64::AEK_PROFILE | AArch64::AEK_RAS | AArch64::AEK_RCPC |
       AArch64::AEK_RDM | AArch64::AEK_SIMD | AArch64::AEK_SSBS,
      "8.2-A"));
+  EXPECT_TRUE(testAArch64CPU(
+     "neoverse-n2", "armv8.5-a", "crypto-neon-fp-armv8",
+      AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
+      AArch64::AEK_SIMD | AArch64::AEK_FP16 | AArch64::AEK_RAS |
+      AArch64::AEK_LSE | AArch64::AEK_SVE | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC | AArch64::AEK_RDM | AArch64::AEK_MTE |
+      AArch64::AEK_SSBS | AArch64::AEK_SB | AArch64::AEK_SVE2 |
+      AArch64::AEK_SVE2BITPERM | AArch64::AEK_BF16 | AArch64::AEK_I8MM,
+     "8.5-A"));
   EXPECT_TRUE(testAArch64CPU(
       "thunderx2t99", "armv8.1-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_LSE |
@@ -1048,7 +1063,7 @@
       "8.2-A"));
 }
 
-static constexpr unsigned NumAArch64CPUArchs = 44;
+static constexpr unsigned NumAArch64CPUArchs = 45;
 
 TEST(TargetParserTest, testAArch64CPUArchList) {
   SmallVector<StringRef, NumAArch64CPUArchs> List;
Index: llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
===================================================================
--- llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
+++ llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
@@ -9,6 +9,7 @@
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-x1 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=neoverse-e1 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=neoverse-n1 --disassemble < %s | FileCheck %s
+# RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=neoverse-n2 --disassemble < %s | FileCheck %s
 
 # CHECK: ldaprb w0, [x0]
 # CHECK: ldaprh w0, [x0]
Index: llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
===================================================================
--- llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
+++ llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
@@ -6,6 +6,7 @@
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a78 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=cortex-x1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=neoverse-n1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
+// RUN: llvm-mc -triple thumb -mcpu=neoverse-n2 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 
 // RUN: not llvm-mc -triple thumb -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-ERROR < %t %s
Index: llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
===================================================================
--- llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
+++ llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
@@ -3,6 +3,7 @@
 // RUN: llvm-mc -triple arm -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=neoverse-n1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
+// RUN: llvm-mc -triple arm -mcpu=neoverse-n2 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=cortex-a77 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=cortex-a78 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=cortex-x1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
Index: llvm/test/MC/AArch64/armv8.5a-ssbs.s
===================================================================
--- llvm/test/MC/AArch64/armv8.5a-ssbs.s
+++ llvm/test/MC/AArch64/armv8.5a-ssbs.s
@@ -6,6 +6,7 @@
 // RUN:     llvm-mc -triple aarch64 -show-encoding -mcpu=cortex-a76ae < %s | FileCheck %s
 // RUN:     llvm-mc -triple aarch64 -show-encoding -mcpu=neoverse-e1 < %s  | FileCheck %s
 // RUN:     llvm-mc -triple aarch64 -show-encoding -mcpu=neoverse-n1 < %s  | FileCheck %s
+// RUN:     llvm-mc -triple aarch64 -show-encoding -mcpu=neoverse-n2 < %s  | FileCheck %s
 // RUN: not llvm-mc -triple aarch64 -show-encoding -mattr=-ssbs  < %s 2>&1 | FileCheck %s --check-prefix=NOSPECID
 
 mrs x2, SSBS
Index: llvm/test/MC/AArch64/armv8.3a-rcpc.s
===================================================================
--- llvm/test/MC/AArch64/armv8.3a-rcpc.s
+++ llvm/test/MC/AArch64/armv8.3a-rcpc.s
@@ -5,6 +5,7 @@
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mcpu=cortex-a55 < %s 2>&1 | FileCheck %s
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mcpu=neoverse-e1 < %s 2>&1 | FileCheck %s
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mcpu=neoverse-n1 < %s 2>&1 | FileCheck %s
+// RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mcpu=neoverse-n2 < %s 2>&1 | FileCheck %s
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mattr=+v8.2a -mattr=+rcpc < %s 2>&1 | FileCheck %s
 // RUN: not llvm-mc -triple aarch64-none-linux-gnu -mattr=+v8.2a < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-REQ %s < %t
Index: llvm/test/MC/AArch64/armv8.2a-dotprod.s
===================================================================
--- llvm/test/MC/AArch64/armv8.2a-dotprod.s
+++ llvm/test/MC/AArch64/armv8.2a-dotprod.s
@@ -9,6 +9,7 @@
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-x1 -show-encoding < %s     | FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=neoverse-e1 -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=neoverse-n1 -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
+// RUN: llvm-mc -triple aarch64 -mcpu=neoverse-n2 -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=tsv110 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
 
 // RUN: not llvm-mc -triple aarch64 -mattr=+v8.2a -show-encoding < %s 2> %t
@@ -27,6 +28,8 @@
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple aarch64 -mcpu=neoverse-n1 -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple aarch64 -mcpu=neoverse-n2 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 
 udot v0.2s, v1.8b, v2.8b
 sdot v0.2s, v1.8b, v2.8b
Index: llvm/test/CodeGen/AArch64/remat.ll
===================================================================
--- llvm/test/CodeGen/AArch64/remat.ll
+++ llvm/test/CodeGen/AArch64/remat.ll
@@ -13,6 +13,7 @@
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-x1 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=neoverse-e1 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=neoverse-n1 -o - %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=neoverse-n2 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=exynos-m3 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=exynos-m4 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=exynos-m5 -o - %s | FileCheck %s
Index: llvm/test/CodeGen/AArch64/neon-dot-product.ll
===================================================================
--- llvm/test/CodeGen/AArch64/neon-dot-product.ll
+++ llvm/test/CodeGen/AArch64/neon-dot-product.ll
@@ -3,6 +3,7 @@
 ; RUN: llc -mtriple aarch64-none-linux-gnu -mcpu=cortex-a65ae < %s | FileCheck %s
 ; RUN: llc -mtriple aarch64-none-linux-gnu -mcpu=neoverse-e1  < %s | FileCheck %s
 ; RUN: llc -mtriple aarch64-none-linux-gnu -mcpu=neoverse-n1  < %s | FileCheck %s
+; RUN: llc -mtriple aarch64-none-linux-gnu -mcpu=neoverse-n2  < %s | FileCheck %s
 
 declare <2 x i32> @llvm.aarch64.neon.udot.v2i32.v8i8(<2 x i32>, <8 x i8>, <8 x i8>)
 declare <4 x i32> @llvm.aarch64.neon.udot.v4i32.v16i8(<4 x i32>, <16 x i8>, <16 x i8>)
Index: llvm/test/CodeGen/AArch64/cpus.ll
===================================================================
--- llvm/test/CodeGen/AArch64/cpus.ll
+++ llvm/test/CodeGen/AArch64/cpus.ll
@@ -20,6 +20,7 @@
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-x1 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-e1 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-n1 2>&1 | FileCheck %s
+; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-n2 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-v1 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=exynos-m3 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=exynos-m4 2>&1 | FileCheck %s
Index: llvm/lib/Target/ARM/ARMSubtarget.h
===================================================================
--- llvm/lib/Target/ARM/ARMSubtarget.h
+++ llvm/lib/Target/ARM/ARMSubtarget.h
@@ -76,6 +76,7 @@
     Krait,
     Kryo,
     NeoverseN1,
+    NeoverseN2,
     NeoverseV1,
     Swift
   };
Index: llvm/lib/Target/ARM/ARMSubtarget.cpp
===================================================================
--- llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -314,6 +314,7 @@
     PreISelOperandLatencyAdjustment = 1;
     break;
   case NeoverseN1:
+  case NeoverseN2:
   case NeoverseV1:
     break;
   case Swift:
Index: llvm/lib/Target/ARM/ARM.td
===================================================================
--- llvm/lib/Target/ARM/ARM.td
+++ llvm/lib/Target/ARM/ARM.td
@@ -1299,6 +1299,11 @@
                                                          FeatureCRC,
                                                          FeatureDotProd]>;
 
+def : ProcNoItin<"neoverse-n2",                         [ARMv85a,
+                                                         FeatureBF16,
+                                                         FeatureMatMulInt8,
+                                                         FeaturePerfMon]>;
+
 def : ProcessorModel<"cyclone",     SwiftModel,         [ARMv8a, ProcSwift,
                                                          FeatureHasRetAddrStack,
                                                          FeatureNEONForFP,
Index: llvm/lib/Target/AArch64/AArch64Subtarget.h
===================================================================
--- llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -64,6 +64,7 @@
     Kryo,
     NeoverseE1,
     NeoverseN1,
+    NeoverseN2,
     NeoverseV1,
     Saphira,
     ThunderX2T99,
Index: llvm/lib/Target/AArch64/AArch64Subtarget.cpp
===================================================================
--- llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -151,6 +151,7 @@
     PrefFunctionLogAlignment = 3;
     break;
   case NeoverseN1:
+  case NeoverseN2:
   case NeoverseV1:
     PrefFunctionLogAlignment = 4;
     break;
Index: llvm/lib/Target/AArch64/AArch64.td
===================================================================
--- llvm/lib/Target/AArch64/AArch64.td
+++ llvm/lib/Target/AArch64/AArch64.td
@@ -903,6 +903,18 @@
                                       FeatureSSBS,
                                       ]>;
 
+def ProcNeoverseN2 : SubtargetFeature<"neoversen2", "ARMProcFamily",
+                                      "NeoverseN2",
+                                      "Neoverse N2 ARM processors", [
+                                      HasV8_5aOps,
+                                      FeatureBF16,
+                                      FeatureETE,
+                                      FeatureMatMulInt8,
+                                      FeatureMTE,
+                                      FeatureSVE2,
+                                      FeatureSVE2BitPerm,
+                                      FeatureTRBE]>;
+
 def ProcNeoverseV1 : SubtargetFeature<"neoversev1", "ARMProcFamily",
                                       "NeoverseV1",
                                       "Neoverse V1 ARM processors", [
@@ -1064,6 +1076,7 @@
 def : ProcessorModel<"cortex-x1", CortexA57Model, [ProcX1]>;
 def : ProcessorModel<"neoverse-e1", CortexA53Model, [ProcNeoverseE1]>;
 def : ProcessorModel<"neoverse-n1", CortexA57Model, [ProcNeoverseN1]>;
+def : ProcessorModel<"neoverse-n2", CortexA57Model, [ProcNeoverseN2]>;
 def : ProcessorModel<"neoverse-v1", CortexA57Model, [ProcNeoverseV1]>;
 def : ProcessorModel<"exynos-m3", ExynosM3Model, [ProcExynosM3]>;
 def : ProcessorModel<"exynos-m4", ExynosM4Model, [ProcExynosM4]>;
Index: llvm/lib/Support/Host.cpp
===================================================================
--- llvm/lib/Support/Host.cpp
+++ llvm/lib/Support/Host.cpp
@@ -208,6 +208,7 @@
             .Case("0xd41", "cortex-a78")
             .Case("0xd44", "cortex-x1")
             .Case("0xd0c", "neoverse-n1")
+            .Case("0xd49", "neoverse-n2")
             .Default("generic");
   }
 
Index: llvm/include/llvm/Support/ARMTargetParser.def
===================================================================
--- llvm/include/llvm/Support/ARMTargetParser.def
+++ llvm/include/llvm/Support/ARMTargetParser.def
@@ -300,6 +300,9 @@
              (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("neoverse-n1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
              (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
+ARM_CPU_NAME("neoverse-n2", ARMV8_5A, FK_CRYPTO_NEON_FP_ARMV8, false,
+             (ARM::AEK_BF16 | ARM::AEK_DOTPROD | ARM::AEK_I8MM | ARM::AEK_RAS |
+              ARM::AEK_SB))
 ARM_CPU_NAME("neoverse-v1", ARMV8_4A, FK_CRYPTO_NEON_FP_ARMV8, false,
              (ARM::AEK_RAS | ARM::AEK_FP16 | ARM::AEK_BF16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("cyclone", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false, ARM::AEK_CRC)
Index: llvm/include/llvm/Support/AArch64TargetParser.def
===================================================================
--- llvm/include/llvm/Support/AArch64TargetParser.def
+++ llvm/include/llvm/Support/AArch64TargetParser.def
@@ -150,6 +150,11 @@
                  (AArch64::AEK_DOTPROD | AArch64::AEK_FP16 |
                   AArch64::AEK_PROFILE | AArch64::AEK_RAS | AArch64::AEK_RCPC |
                   AArch64::AEK_SSBS))
+AARCH64_CPU_NAME("neoverse-n2", ARMV8_5A, FK_CRYPTO_NEON_FP_ARMV8, false,
+                 (AArch64::AEK_BF16 | AArch64::AEK_DOTPROD | AArch64::AEK_FP16 |
+                  AArch64::AEK_I8MM | AArch64::AEK_MTE | AArch64::AEK_RAS |
+                  AArch64::AEK_RCPC | AArch64::AEK_SB | AArch64::AEK_SSBS |
+                  AArch64::AEK_SVE | AArch64::AEK_SVE2 | AArch64::AEK_SVE2BITPERM))
 AARCH64_CPU_NAME("neoverse-v1", ARMV8_4A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  (AArch64::AEK_RAS | AArch64::AEK_SVE | AArch64::AEK_SSBS |
                   AArch64::AEK_RCPC | AArch64::AEK_FP16 | AArch64::AEK_BF16 |
Index: clang/test/Driver/arm-cortex-cpus.c
===================================================================
--- clang/test/Driver/arm-cortex-cpus.c
+++ clang/test/Driver/arm-cortex-cpus.c
@@ -879,6 +879,9 @@
 // RUN: %clang -target arm -mcpu=cortex-m55 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CORTEX-M55 %s
 // CHECK-CORTEX-M55:  "-cc1"{{.*}} "-triple" "thumbv8.1m.main-{{.*}} "-target-cpu" "cortex-m55"
 
+// RUN: %clang -target arm -mcpu=neoverse-n2 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NEOVERSE-N2 %s
+// CHECK-NEOVERSE-N2: "-cc1"{{.*}} "-triple" "armv8.5a-{{.*}}" "-target-cpu" "neoverse-n2"
+
 // ================== Check whether -mcpu accepts mixed-case values.
 // RUN: %clang -target arm-linux-gnueabi -mcpu=Cortex-a5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-A7 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
Index: clang/test/Driver/aarch64-cpus.c
===================================================================
--- clang/test/Driver/aarch64-cpus.c
+++ clang/test/Driver/aarch64-cpus.c
@@ -752,6 +752,9 @@
 // RUN: %clang -target aarch64 -march=armv8-a+ras -### -c %s 2>&1 | FileCheck -check-prefix=V8ARAS -check-prefix=GENERIC %s
 // V8ARAS: "-target-feature" "+ras"
 
+// RUN: %clang -target aarch64 -mcpu=neoverse-n2 -### -c %s 2>&1 | FileCheck -check-prefix=NEOVERSE-N2 %s
+// NEOVERSE-N2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "neoverse-n2"
+
 // ================== Check whether -march accepts mixed-case values.
 // RUN: %clang -target aarch64_be -march=ARMV8.1A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
 // RUN: %clang -target aarch64_be -march=ARMV8.1-A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
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