[llvm] [SPIRV] Start adding support for `int128` (PR #170798)

[Manuel Carrasco via llvm-commits]

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@@ -176,7 +176,17 @@ bool SPIRVExtensionsParser::parse(cl::Option &O, StringRef ArgName,
                                   std::set<SPIRV::Extension::Extension> &Vals) {
   SmallVector<StringRef, 10> Tokens;
   ArgValue.split(Tokens, ",", -1, false);
-  std::sort(Tokens.begin(), Tokens.end());
+  std::sort(Tokens.begin(), Tokens.end(), [](auto &&LHS, auto &&RHS) {
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mgcarrasco wrote:

[llvm::sort](https://llvm.org/docs/CodingStandards.html#beware-of-non-deterministic-sorting-order-of-equal-elements) instead of std::sort? 

https://github.com/llvm/llvm-project/pull/170798