[clang] [clang][LoongArch] Add OHOS target (PR #127555)

[Lu Weining via cfe-commits]

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@@ -2458,7 +2458,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
 
   static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
   static const char *const LoongArch64Triples[] = {
-      "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
+      "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu",
+      "loongarch64-linux-ohos"};
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SixWeining wrote:

Why the ohos triple is added to `Gnu.cpp`. Seems that aarch64 and x86-64 don't add them.

https://github.com/llvm/llvm-project/pull/127555