[PATCH] D117207: [AArch64] Add native CPU detection for Neoverse-V1.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen created this revision.
Herald added subscribers: dexonsmith, hiraditya, kristof.beyls.
sdesmalen requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Map Main ID part number 0xd40 to neoverse-v1, as described in the
Neoverse-V1 Technical Reference Manual:

https://developer.arm.com/documentation/101427/0101/Register-descriptions/AArch64-system-registers/MIDR-EL1--Main-ID-Register--EL1


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117207

Files:
  llvm/lib/Support/Host.cpp
  llvm/unittests/Support/Host.cpp


Index: llvm/unittests/Support/Host.cpp
===================================================================
--- llvm/unittests/Support/Host.cpp
+++ llvm/unittests/Support/Host.cpp
@@ -102,6 +102,9 @@
                                               "CPU part        : 0xd03"),
             "cortex-a53");
 
+  EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
+                                              "CPU part        : 0xd40"),
+            "neoverse-v1");
   EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
                                               "CPU part        : 0xd0c"),
             "neoverse-n1");
Index: llvm/lib/Support/Host.cpp
===================================================================
--- llvm/lib/Support/Host.cpp
+++ llvm/lib/Support/Host.cpp
@@ -213,6 +213,7 @@
         .Case("0xd44", "cortex-x1")
         .Case("0xd0c", "neoverse-n1")
         .Case("0xd49", "neoverse-n2")
+        .Case("0xd40", "neoverse-v1")
         .Default("generic");
   }
 


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