commit c8cd1a994d28e5e822bd0d3c9a6b0aae2abb510f
author KAWASHIMA Takahiro <t-kawashima@fujitsu.com> Tue Mar 03 21:52:27 2020 +0900
committer KAWASHIMA Takahiro <t-kawashima@fujitsu.com> Mon Mar 09 19:15:09 2020 +0900
tree 2ed4eb6a2f052b18527ab33fcf8a0a388683add8
parent 2c36c23f3476baf3b9283ea387c579419a70b112

[AArch64] Add support for Fujitsu A64FX

A64FX is an Armv8.2-A CPU used in FUJITSU Supercomputer
PRIMEHPC FX1000, PRIMEHPC FX700, and supercomputer Fugaku.

https://www.fujitsu.com/global/products/computing/servers/supercomputer/specifications/

Differential Revision: https://reviews.llvm.org/D75594

llvm/lib/Support/Host.cpp

diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 9b9d60e..2fb0c25 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -219,6 +219,16 @@
     }
   }
 
+  if (Implementer == "0x46") { // Fujitsu Ltd.
+    for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
+      if (Lines[I].startswith("CPU part")) {
+        return StringSwitch<const char *>(Lines[I].substr(8).ltrim("\t :"))
+          .Case("0x001", "a64fx")
+          .Default("generic");
+      }
+    }
+  }
+
   if (Implementer == "0x48") // HiSilicon Technologies, Inc.
     // Look for the CPU part line.
     for (unsigned I = 0, E = Lines.size(); I != E; ++I)