[clang] 954db63 - [ARM] Add Cortex-A78 and Cortex-X1 Support for Clang and LLVM

Luke Geeson via cfe-commits cfe-commits at lists.llvm.org
Fri Jul 10 10:24:41 PDT 2020


Author: Luke Geeson
Date: 2020-07-10T18:24:11+01:00
New Revision: 954db63cd149df031d9b660bf68f0fe1de1defb9

URL: https://github.com/llvm/llvm-project/commit/954db63cd149df031d9b660bf68f0fe1de1defb9
DIFF: https://github.com/llvm/llvm-project/commit/954db63cd149df031d9b660bf68f0fe1de1defb9.diff

LOG: [ARM] Add Cortex-A78 and Cortex-X1 Support for Clang and LLVM

This patch upstreams support for the Arm-v8 Cortex-A78 and Cortex-X1
processors for AArch64 and ARM.

In detail:
- Adding cortex-a78 and cortex-x1 as cpu options for aarch64 and arm targets in clang
- Adding Cortex-A78 and Cortex-X1 CPU names and ProcessorModels in llvm

details of the CPU can be found here:
https://www.arm.com/products/cortex-x

https://www.arm.com/products/silicon-ip-cpu/cortex-a/cortex-a78

The following people contributed to this patch:
- Luke Geeson
- Mikhail Maltsev

Reviewers: t.p.northover, dmgreen

Reviewed By: dmgreen

Subscribers: dmgreen, kristof.beyls, hiraditya, danielkiss, cfe-commits,
llvm-commits, miyuki

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D83206

Added: 
    

Modified: 
    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/remat.ll
    llvm/test/MC/AArch64/armv8.2a-dotprod.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

Removed: 
    


################################################################################
diff  --git a/clang/test/Driver/aarch64-cpus.c b/clang/test/Driver/aarch64-cpus.c
index 53b546265f6a..f39241bee8a6 100644
--- a/clang/test/Driver/aarch64-cpus.c
+++ b/clang/test/Driver/aarch64-cpus.c
@@ -173,6 +173,10 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a77  -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A77 %s
 // CORTEX-A77: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a77"
+// RUN: %clang -target aarch64 -mcpu=cortex-x1  -### -c %s 2>&1 | FileCheck -check-prefix=CORTEXX1 %s
+// CORTEXX1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-x1"
+// RUN: %clang -target aarch64 -mcpu=cortex-a78  -### -c %s 2>&1 | FileCheck -check-prefix=CORTEXA78 %s
+// CORTEXA78: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a78"
 
 // RUN: %clang -target aarch64_be -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=M3 %s
 // RUN: %clang -target aarch64 -mbig-endian -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=M3 %s

diff  --git a/clang/test/Driver/arm-cortex-cpus.c b/clang/test/Driver/arm-cortex-cpus.c
index d99526abe446..6de1040e9420 100644
--- a/clang/test/Driver/arm-cortex-cpus.c
+++ b/clang/test/Driver/arm-cortex-cpus.c
@@ -840,6 +840,18 @@
 // CHECK-CORTEX-A76AE-SOFT: "-target-feature" "+soft-float"
 // CHECK-CORTEX-A76AE-SOFT: "-target-feature" "+soft-float-abi"
 
+// RUN: %clang -target armv8a-arm-none-eabi -mcpu=cortex-x1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CORTEX-X1 %s
+// RUN: %clang -target armv8a-arm-none-eabi -mcpu=cortex-x1 -mfpu=crypto-neon-fp-armv8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CORTEX-X1-MFPU %s
+// CHECK-CORTEX-X1: "-cc1"{{.*}} "-triple" "armv8.2a-{{.*}} "-target-cpu" "cortex-x1"
+// CHECK-CORTEX-X1-MFPU: "-cc1"{{.*}} "-target-feature" "+fp-armv8"
+// CHECK-CORTEX-X1-MFPU: "-target-feature" "+crypto"
+
+// RUN: %clang -target armv8a-arm-none-eabi -mcpu=cortex-a78 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CORTEX-A78 %s
+// RUN: %clang -target armv8a-arm-none-eabi -mcpu=cortex-a78 -mfpu=crypto-neon-fp-armv8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CORTEX-A78-MFPU %s
+// CHECK-CORTEX-A78: "-cc1"{{.*}} "-triple" "armv8.2a-{{.*}} "-target-cpu" "cortex-a78"
+// CHECK-CORTEX-A78-MFPU: "-cc1"{{.*}} "-target-feature" "+fp-armv8"
+// CHECK-CORTEX-A78-MFPU: "-target-feature" "+crypto"
+
 // RUN: %clang -target arm -mcpu=cortex-m23 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8MBASE %s
 // CHECK-CPUV8MBASE:  "-cc1"{{.*}} "-triple" "thumbv8m.base-
 

diff  --git a/llvm/include/llvm/Support/AArch64TargetParser.def b/llvm/include/llvm/Support/AArch64TargetParser.def
index 66843c6e1941..13b7cfc4b5cd 100644
--- a/llvm/include/llvm/Support/AArch64TargetParser.def
+++ b/llvm/include/llvm/Support/AArch64TargetParser.def
@@ -127,6 +127,12 @@ AARCH64_CPU_NAME("cortex-a76ae", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
 AARCH64_CPU_NAME("cortex-a77", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  (AArch64::AEK_FP16 | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
                   AArch64::AEK_SSBS))
+AARCH64_CPU_NAME("cortex-a78", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+                 (AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC |
+                  AArch64::AEK_SSBS))
+AARCH64_CPU_NAME("cortex-x1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+                 (AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC |
+                  AArch64::AEK_SSBS))
 AARCH64_CPU_NAME("neoverse-e1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  (AArch64::AEK_DOTPROD | AArch64::AEK_FP16 | AArch64::AEK_RAS |
                   AArch64::AEK_RCPC | AArch64::AEK_SSBS))

diff  --git a/llvm/include/llvm/Support/ARMTargetParser.def b/llvm/include/llvm/Support/ARMTargetParser.def
index 7a81af72ad33..9f51c841e429 100644
--- a/llvm/include/llvm/Support/ARMTargetParser.def
+++ b/llvm/include/llvm/Support/ARMTargetParser.def
@@ -294,6 +294,10 @@ ARM_CPU_NAME("cortex-a76ae", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
             (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("cortex-a77", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
             (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
+ARM_CPU_NAME("cortex-a78",ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+             (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
+ARM_CPU_NAME("cortex-x1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+             (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("cyclone", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false, ARM::AEK_CRC)

diff  --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index adfb599f55ff..8dc8c4e9775a 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -205,6 +205,8 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef ProcCpuinfoContent) {
             .Case("0xd0a", "cortex-a75")
             .Case("0xd0b", "cortex-a76")
             .Case("0xd0d", "cortex-a77")
+            .Case("0xd41", "cortex-a78")
+            .Case("0xd44", "cortex-x1")
             .Case("0xd0c", "neoverse-n1")
             .Default("generic");
   }

diff  --git a/llvm/lib/Target/AArch64/AArch64.td b/llvm/lib/Target/AArch64/AArch64.td
index da68e3ed17a2..534af9686af0 100644
--- a/llvm/lib/Target/AArch64/AArch64.td
+++ b/llvm/lib/Target/AArch64/AArch64.td
@@ -636,6 +636,36 @@ def ProcA77     : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
                                     FeatureDotProd
                                     ]>;
 
+def ProcA78 : SubtargetFeature<"cortex-a78", "ARMProcFamily",
+                               "CortexA78",
+                               "Cortex-A78 ARM processors", [
+                               HasV8_2aOps,
+                               FeatureCrypto,
+                               FeatureFPARMv8,
+                               FeatureFuseAES,
+                               FeatureNEON,
+                               FeatureRCPC,
+                               FeaturePerfMon,
+                               FeaturePostRAScheduler,
+                               FeatureSPE,
+                               FeatureFullFP16,
+                               FeatureSSBS,
+                               FeatureDotProd]>;
+
+def ProcX1 : SubtargetFeature<"cortex-x1", "ARMProcFamily", "CortexX1",
+                                  "Cortex-X1 ARM processors", [
+                                  HasV8_2aOps,
+                                  FeatureCrypto,
+                                  FeatureFPARMv8,
+                                  FeatureFuseAES,
+                                  FeatureNEON,
+                                  FeatureRCPC,
+                                  FeaturePerfMon,
+                                  FeaturePostRAScheduler,
+                                  FeatureSPE,
+                                  FeatureFullFP16,
+                                  FeatureDotProd]>;
+
 def ProcA64FX : SubtargetFeature<"a64fx", "ARMProcFamily", "A64FX",
                                  "Fujitsu A64FX processors", [
                                   HasV8_2aOps,
@@ -978,6 +1008,8 @@ def : ProcessorModel<"cortex-a75", CortexA57Model, [ProcA75]>;
 def : ProcessorModel<"cortex-a76", CortexA57Model, [ProcA76]>;
 def : ProcessorModel<"cortex-a76ae", CortexA57Model, [ProcA76]>;
 def : ProcessorModel<"cortex-a77", CortexA57Model, [ProcA77]>;
+def : ProcessorModel<"cortex-a78", CortexA57Model, [ProcA78]>;
+def : ProcessorModel<"cortex-x1", CortexA57Model, [ProcX1]>;
 def : ProcessorModel<"neoverse-e1", CortexA53Model, [ProcNeoverseE1]>;
 def : ProcessorModel<"neoverse-n1", CortexA57Model, [ProcNeoverseN1]>;
 def : ProcessorModel<"exynos-m3", ExynosM3Model, [ProcExynosM3]>;

diff  --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
index 2f5abd76cc3a..029535cb98b5 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -102,6 +102,8 @@ void AArch64Subtarget::initializeProperties() {
   case CortexA75:
   case CortexA76:
   case CortexA77:
+  case CortexA78:
+  case CortexX1:
     PrefFunctionLogAlignment = 4;
     break;
   case A64FX:

diff  --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h
index b7dc05e27e6a..b111f0016948 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -56,6 +56,8 @@ class AArch64Subtarget final : public AArch64GenSubtargetInfo {
     CortexA75,
     CortexA76,
     CortexA77,
+    CortexA78,
+    CortexX1,
     ExynosM3,
     Falkor,
     Kryo,

diff  --git a/llvm/lib/Target/ARM/ARM.td b/llvm/lib/Target/ARM/ARM.td
index 90b581447372..0468f7f1cf8e 100644
--- a/llvm/lib/Target/ARM/ARM.td
+++ b/llvm/lib/Target/ARM/ARM.td
@@ -596,6 +596,10 @@ def ProcA76     : SubtargetFeature<"a76", "ARMProcFamily", "CortexA76",
                                    "Cortex-A76 ARM processors", []>;
 def ProcA77     : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
                                    "Cortex-A77 ARM processors", []>;
+def ProcA78     : SubtargetFeature<"cortex-a78", "ARMProcFamily", "CortexA78",
+                                   "Cortex-A78 ARM processors", []>;
+def ProcX1      : SubtargetFeature<"cortex-x1", "ARMProcFamily", "CortexX1",
+                                   "Cortex-X1 ARM processors", []>;
 
 def ProcKrait   : SubtargetFeature<"krait", "ARMProcFamily", "Krait",
                                    "Qualcomm Krait processors", []>;
@@ -1234,6 +1238,22 @@ def : ProcNoItin<"cortex-a77",                          [ARMv82a, ProcA77,
                                                          FeatureFullFP16,
                                                          FeatureDotProd]>;
 
+def : ProcNoItin<"cortex-a78",                          [ARMv82a, ProcA78,
+                                                         FeatureHWDivThumb,
+                                                         FeatureHWDivARM,
+                                                         FeatureCrypto,
+                                                         FeatureCRC,
+                                                         FeatureFullFP16,
+                                                         FeatureDotProd]>;
+
+def : ProcNoItin<"cortex-x1",                           [ARMv82a, ProcX1,
+                                                         FeatureHWDivThumb,
+                                                         FeatureHWDivARM,
+                                                         FeatureCrypto,
+                                                         FeatureCRC,
+                                                         FeatureFullFP16,
+                                                         FeatureDotProd]>;
+
 def : ProcNoItin<"neoverse-n1",                         [ARMv82a,
                                                          FeatureHWDivThumb,
                                                          FeatureHWDivARM,

diff  --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 3d828e55c869..46802037c2aa 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -293,12 +293,14 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
   case CortexA75:
   case CortexA76:
   case CortexA77:
+  case CortexA78:
   case CortexR4:
   case CortexR4F:
   case CortexR5:
   case CortexR7:
   case CortexM3:
   case CortexR52:
+  case CortexX1:
     break;
   case Exynos:
     LdStMultipleTiming = SingleIssuePlusExtras;

diff  --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index c42356f28b65..2703e385dd81 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -62,6 +62,7 @@ class ARMSubtarget : public ARMGenSubtargetInfo {
     CortexA75,
     CortexA76,
     CortexA77,
+    CortexA78,
     CortexA8,
     CortexA9,
     CortexM3,
@@ -70,6 +71,7 @@ class ARMSubtarget : public ARMGenSubtargetInfo {
     CortexR5,
     CortexR52,
     CortexR7,
+    CortexX1,
     Exynos,
     Krait,
     Kryo,

diff  --git a/llvm/test/CodeGen/AArch64/cpus.ll b/llvm/test/CodeGen/AArch64/cpus.ll
index 107aca373923..3d4ad97b7fb2 100644
--- a/llvm/test/CodeGen/AArch64/cpus.ll
+++ b/llvm/test/CodeGen/AArch64/cpus.ll
@@ -16,6 +16,8 @@
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a76ae 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a76 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a77 2>&1 | FileCheck %s
+; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a78 2>&1 | FileCheck %s
+; 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=exynos-m3 2>&1 | FileCheck %s

diff  --git a/llvm/test/CodeGen/AArch64/remat.ll b/llvm/test/CodeGen/AArch64/remat.ll
index 400be14b6e46..90ad2508fe17 100644
--- a/llvm/test/CodeGen/AArch64/remat.ll
+++ b/llvm/test/CodeGen/AArch64/remat.ll
@@ -9,6 +9,8 @@
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a73 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a75 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a77 -o - %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a78 -o - %s | FileCheck %s
+; 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=exynos-m3 -o - %s | FileCheck %s

diff  --git a/llvm/test/MC/AArch64/armv8.2a-dotprod.s b/llvm/test/MC/AArch64/armv8.2a-dotprod.s
index 6315066efe58..3b9f416a63fb 100644
--- a/llvm/test/MC/AArch64/armv8.2a-dotprod.s
+++ b/llvm/test/MC/AArch64/armv8.2a-dotprod.s
@@ -5,6 +5,8 @@
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a77 -show-encoding < %s     | FileCheck %s --check-prefix=CHECK-DOTPROD
+// RUN: llvm-mc -triple aarch64 -mcpu=cortex-a78 -show-encoding < %s     | FileCheck %s --check-prefix=CHECK-DOTPROD
+// 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=tsv110 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
@@ -19,6 +21,10 @@
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple aarch64 -mcpu=cortex-a77 -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple aarch64 -mcpu=cortex-a78 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple aarch64 -mcpu=cortex-x1 -mattr=-dotprod -show-encoding < %s 2> %t
+// 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
 

diff  --git a/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s b/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
index 748392630920..8ca2a97c602d 100644
--- a/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
+++ b/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
@@ -4,11 +4,17 @@
 // 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=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
 
 // RUN: not llvm-mc -triple arm -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple arm -mcpu=cortex-a77 -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple arm -mcpu=cortex-a78 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple arm -mcpu=cortex-x1 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple arm -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple arm -mattr=+v8.1a -show-encoding < %s 2> %t

diff  --git a/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s b/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
index 47837729eef6..8570a7be3150 100644
--- a/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
+++ b/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
@@ -3,6 +3,8 @@
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a77 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
+// 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: not llvm-mc -triple thumb -mattr=-dotprod -show-encoding < %s 2> %t

diff  --git a/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt b/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
index 1c41882119b3..8b0aac526999 100644
--- a/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
+++ b/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
@@ -5,6 +5,8 @@
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a65ae --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a75 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a77 --disassemble < %s | FileCheck %s
+# RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a78 --disassemble < %s | FileCheck %s
+# 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
 

diff  --git a/llvm/unittests/Support/TargetParserTest.cpp b/llvm/unittests/Support/TargetParserTest.cpp
index b9736481e0e3..0127cb6ae009 100644
--- a/llvm/unittests/Support/TargetParserTest.cpp
+++ b/llvm/unittests/Support/TargetParserTest.cpp
@@ -262,6 +262,18 @@ TEST(TargetParserTest, testARMCPU) {
                          ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_FP16 |
                          ARM::AEK_RAS | ARM::AEK_DOTPROD,
                          "8.2-A"));
+  EXPECT_TRUE(testARMCPU("cortex-a78", "armv8.2-a", "crypto-neon-fp-armv8",
+                         ARM::AEK_DOTPROD | ARM::AEK_FP16 |
+                         ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT |
+                         ARM::AEK_HWDIVARM | ARM::AEK_HWDIVTHUMB |
+                         ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS,
+                         "8.2-A"));
+  EXPECT_TRUE(testARMCPU("cortex-x1", "armv8.2-a", "crypto-neon-fp-armv8",
+                         ARM::AEK_RAS | ARM::AEK_FP16 | ARM::AEK_DOTPROD |
+                         ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT |
+                         ARM::AEK_HWDIVARM | ARM::AEK_HWDIVTHUMB |
+                         ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS,
+                         "8.2-A"));
   EXPECT_TRUE(testARMCPU("neoverse-n1", "armv8.2-a", "crypto-neon-fp-armv8",
                         ARM::AEK_CRC | ARM::AEK_SEC | ARM::AEK_MP |
                         ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
@@ -310,7 +322,7 @@ TEST(TargetParserTest, testARMCPU) {
                          "7-S"));
 }
 
-static constexpr unsigned NumARMCPUArchs = 87;
+static constexpr unsigned NumARMCPUArchs = 89;
 
 TEST(TargetParserTest, testARMCPUArchList) {
   SmallVector<StringRef, NumARMCPUArchs> List;
@@ -864,6 +876,20 @@ TEST(TargetParserTest, testAArch64CPU) {
       AArch64::AEK_RDM | AArch64::AEK_SIMD | AArch64::AEK_RAS |
       AArch64::AEK_LSE | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
       AArch64::AEK_RCPC | AArch64::AEK_SSBS, "8.2-A"));
+  EXPECT_TRUE(testAArch64CPU(
+      "cortex-a78", "armv8.2-a", "crypto-neon-fp-armv8",
+      AArch64::AEK_CRC | AArch64::AEK_CRYPTO  | AArch64::AEK_FP |
+      AArch64::AEK_RDM | AArch64::AEK_SIMD | AArch64::AEK_RAS |
+      AArch64::AEK_LSE | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC | AArch64::AEK_SSBS,
+      "8.2-A"));
+  EXPECT_TRUE(testAArch64CPU(
+      "cortex-x1", "armv8.2-a", "crypto-neon-fp-armv8",
+      AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
+      AArch64::AEK_RDM | AArch64::AEK_SIMD | AArch64::AEK_RAS |
+      AArch64::AEK_LSE | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC | AArch64::AEK_SSBS,
+      "8.2-A"));
   EXPECT_TRUE(testAArch64CPU(
       "cyclone", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRYPTO | AArch64::AEK_FP | AArch64::AEK_SIMD, "8-A"));
@@ -1002,7 +1028,7 @@ TEST(TargetParserTest, testAArch64CPU) {
       "8.2-A"));
 }
 
-static constexpr unsigned NumAArch64CPUArchs = 40;
+static constexpr unsigned NumAArch64CPUArchs = 42;
 
 TEST(TargetParserTest, testAArch64CPUArchList) {
   SmallVector<StringRef, NumAArch64CPUArchs> List;


        


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