[llvm] [NVPTX] Add family-specific architectures support (PR #141899)

[Rajat Bajpai via llvm-commits]

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@@ -41,12 +41,14 @@ foreach sm = [20, 21, 30, 32, 35, 37, 50, 52, 53,
 
 // Arch-specific targets. PTX for these is not compatible with any other
 // architectures.
-def SM90a : FeatureSM<"90a", 901>;
-def SM100a: FeatureSM<"100a", 1001>;
-def SM101a: FeatureSM<"101a", 1011>;
-def SM103a: FeatureSM<"103a", 1031>;
-def SM120a: FeatureSM<"120a", 1201>;
-def SM121a: FeatureSM<"121a", 1211>;
+foreach sm = [90, 100, 101, 103, 120, 121] in {
+  def SM#sm#a : FeatureSM<""#sm#"a", !add(!mul(sm, 10), 1)>;
+}
+
+// Family-specific targets. PTX for these is compatible within the same family.
+foreach sm = [100, 101, 103, 120, 121] in {
+  def SM#sm#f : FeatureSM<""#sm#"f", !add(!mul(sm, 10), 2)>;
+}
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rajatbajpai wrote:

Combined sm_XX, sm_XXa, and sm_XXf sm_100 onwards into one loop.

https://github.com/llvm/llvm-project/pull/141899