[AArch64] Add aliases for processors apple-a18/s6..10. (llvm#127152)

apple-a18 is an alias of apple-m4.
apple-s6/s7/s8 are aliases of apple-a13.
apple-s9/s10 are aliases of apple-a16.

As with some other aliases today, this reflects identical ISA feature
support, but not necessarily identical microarchitectures and
performance characteristics.

(cherry picked from commit f0e39c4)

Author: ahmedbougacha

clang/test/Misc/target-invalid-cpu-note.c

@@ -5,11 +5,11 @@
 
 // RUN: not %clang_cc1 -triple arm64--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix AARCH64
 // AARCH64: error: unknown target CPU 'not-a-cpu'
-// AARCH64-NEXT: note: valid target CPU values are: a64fx, ampere1, ampere1a, ampere1b, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-a7, apple-a8, apple-a9, apple-m1, apple-m2, apple-m3, apple-m4, apple-s4, apple-s5, carmel, cobalt-100, cortex-a34, cortex-a35, cortex-a510, cortex-a520, cortex-a520ae, cortex-a53, cortex-a55, cortex-a57, cortex-a65, cortex-a65ae, cortex-a710, cortex-a715, cortex-a72, cortex-a720, cortex-a720ae, cortex-a725, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-r82, cortex-r82ae, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, cortex-x925, cyclone, exynos-m3, exynos-m4, exynos-m5, falkor, generic, grace, kryo, neoverse-512tvb, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, oryon-1, saphira, thunderx, thunderx2t99, thunderx3t110, thunderxt81, thunderxt83, thunderxt88, tsv110{{$}}
+// AARCH64-NEXT: note: valid target CPU values are: a64fx, ampere1, ampere1a, ampere1b, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-a18, apple-a7, apple-a8, apple-a9, apple-m1, apple-m2, apple-m3, apple-m4, apple-s10, apple-s4, apple-s5, apple-s6, apple-s7, apple-s8, apple-s9, carmel, cobalt-100, cortex-a34, cortex-a35, cortex-a510, cortex-a520, cortex-a520ae, cortex-a53, cortex-a55, cortex-a57, cortex-a65, cortex-a65ae, cortex-a710, cortex-a715, cortex-a72, cortex-a720, cortex-a720ae, cortex-a725, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-r82, cortex-r82ae, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, cortex-x925, cyclone, exynos-m3, exynos-m4, exynos-m5, falkor, generic, grace, kryo, neoverse-512tvb, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, oryon-1, saphira, thunderx, thunderx2t99, thunderx3t110, thunderxt81, thunderxt83, thunderxt88, tsv110{{$}}
 
 // RUN: not %clang_cc1 -triple arm64--- -tune-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix TUNE_AARCH64
 // TUNE_AARCH64: error: unknown target CPU 'not-a-cpu'
-// TUNE_AARCH64-NEXT: note: valid target CPU values are: a64fx, ampere1, ampere1a, ampere1b, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-a7, apple-a8, apple-a9, apple-m1, apple-m2, apple-m3, apple-m4, apple-s4, apple-s5, carmel, cobalt-100, cortex-a34, cortex-a35, cortex-a510, cortex-a520, cortex-a520ae, cortex-a53, cortex-a55, cortex-a57, cortex-a65, cortex-a65ae, cortex-a710, cortex-a715, cortex-a72, cortex-a720, cortex-a720ae, cortex-a725, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-r82, cortex-r82ae, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, cortex-x925, cyclone, exynos-m3, exynos-m4, exynos-m5, falkor, generic, grace, kryo, neoverse-512tvb, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, oryon-1, saphira, thunderx, thunderx2t99, thunderx3t110, thunderxt81, thunderxt83, thunderxt88, tsv110{{$}}
+// TUNE_AARCH64-NEXT: note: valid target CPU values are: a64fx, ampere1, ampere1a, ampere1b, apple-a10, apple-a11, apple-a12, apple-a13, apple-a14, apple-a15, apple-a16, apple-a17, apple-a18, apple-a7, apple-a8, apple-a9, apple-m1, apple-m2, apple-m3, apple-m4, apple-s10, apple-s4, apple-s5, apple-s6, apple-s7, apple-s8, apple-s9, carmel, cobalt-100, cortex-a34, cortex-a35, cortex-a510, cortex-a520, cortex-a520ae, cortex-a53, cortex-a55, cortex-a57, cortex-a65, cortex-a65ae, cortex-a710, cortex-a715, cortex-a72, cortex-a720, cortex-a720ae, cortex-a725, cortex-a73, cortex-a75, cortex-a76, cortex-a76ae, cortex-a77, cortex-a78, cortex-a78ae, cortex-a78c, cortex-r82, cortex-r82ae, cortex-x1, cortex-x1c, cortex-x2, cortex-x3, cortex-x4, cortex-x925, cyclone, exynos-m3, exynos-m4, exynos-m5, falkor, generic, grace, kryo, neoverse-512tvb, neoverse-e1, neoverse-n1, neoverse-n2, neoverse-n3, neoverse-v1, neoverse-v2, neoverse-v3, neoverse-v3ae, oryon-1, saphira, thunderx, thunderx2t99, thunderx3t110, thunderxt81, thunderxt83, thunderxt88, tsv110{{$}}
 
 // RUN: not %clang_cc1 -triple i386--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix X86
 // X86: error: unknown target CPU 'not-a-cpu'

llvm/lib/Target/AArch64/AArch64Processors.td

@@ -1197,6 +1197,9 @@ def : ProcessorAlias<"apple-s5", "apple-a12">;
 
 def : ProcessorModel<"apple-a13", CycloneModel, ProcessorFeatures.AppleA13,
                      [TuneAppleA13]>;
+def : ProcessorAlias<"apple-s6", "apple-a13">;
+def : ProcessorAlias<"apple-s7", "apple-a13">;
+def : ProcessorAlias<"apple-s8", "apple-a13">;
 
 def : ProcessorModel<"apple-a14", CycloneModel, ProcessorFeatures.AppleA14,
                      [TuneAppleA14]>;
@@ -1209,12 +1212,15 @@ def : ProcessorAlias<"apple-m2", "apple-a15">;
 def : ProcessorModel<"apple-a16", CycloneModel, ProcessorFeatures.AppleA16,
                      [TuneAppleA16]>;
 def : ProcessorAlias<"apple-m3", "apple-a16">;
+def : ProcessorAlias<"apple-s9", "apple-a16">;
+def : ProcessorAlias<"apple-s10", "apple-a16">;
 
 def : ProcessorModel<"apple-a17", CycloneModel, ProcessorFeatures.AppleA17,
                      [TuneAppleA17]>;
 
 def : ProcessorModel<"apple-m4", CycloneModel, ProcessorFeatures.AppleM4,
                      [TuneAppleM4]>;
+def : ProcessorAlias<"apple-a18", "apple-m4">;
 
 // Alias for the latest Apple processor model supported by LLVM.
 def : ProcessorAlias<"apple-latest", "apple-m4">;

llvm/unittests/TargetParser/TargetParserTest.cpp

@@ -1914,13 +1914,17 @@ INSTANTIATE_TEST_SUITE_P(
                                                  "apple-a8", "apple-a9"}),
                       AArch64CPUAliasTestParams({"apple-a12", "apple-s4",
                                                  "apple-s5"}),
+                      AArch64CPUAliasTestParams({"apple-a13", "apple-s6",
+                                                 "apple-s7", "apple-s8"}),
                       AArch64CPUAliasTestParams({"apple-a14", "apple-m1"}),
                       AArch64CPUAliasTestParams({"apple-a15", "apple-m2"}),
-                      AArch64CPUAliasTestParams({"apple-a16", "apple-m3"})),
+                      AArch64CPUAliasTestParams({"apple-a16", "apple-m3",
+                                                 "apple-s9", "apple-s10"}),
+                      AArch64CPUAliasTestParams({"apple-m4", "apple-a18"})),
     AArch64CPUAliasTestParams::PrintToStringParamName);
 
 // Note: number of CPUs includes aliases.
-static constexpr unsigned NumAArch64CPUArchs = 81;
+static constexpr unsigned NumAArch64CPUArchs = 87;
 
 TEST(TargetParserTest, testAArch64CPUArchList) {
   SmallVector<StringRef, NumAArch64CPUArchs> List;