[llvm] [DirectX backend] emits metadata for DXIL version. (PR #88350)

[Justin Bogner via llvm-commits]

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@@ -1488,6 +1488,48 @@ VersionTuple Triple::getVulkanVersion() const {
   return VersionTuple(0);
 }
 
+VersionTuple Triple::getDXILVersion() const {
+  if (getArch() != dxil || getOS() != ShaderModel)
+    llvm_unreachable("invalid DXIL triple");
+
+  VersionTuple DXILVersion;
+  switch (getSubArch()) {
+  case Triple::NoSubArch:
+  case Triple::DXILSubArch_v1_0:
+    DXILVersion = VersionTuple(1, 0);
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bogner wrote:

Can this be simplified using ParseVersionFromName?

https://github.com/llvm/llvm-project/pull/88350