[clang] [llvm] [MIPS] Add support for O64 Mips ABI (PR #223990)

[Ying Huang via llvm-commits]

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@@ -241,6 +246,7 @@ MipsTargetInfo::getTargetBuiltins() const {
 unsigned MipsTargetInfo::getUnwindWordWidth() const {
   return llvm::StringSwitch<unsigned>(ABI)
       .Case("o32", 32)
+      .Case("o64", 32)
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yingopq wrote:

Does it need to add test in file `clang/test/Sema/attr-mode.c`?

https://github.com/llvm/llvm-project/pull/223990