[clang] [Clang] Support generic bit counting builtins on fixed boolean vectors (PR #154203)

[John McCall via cfe-commits]

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@@ -1693,6 +1693,22 @@ getBitTestAtomicOrdering(BitTest::InterlockingKind I) {
   llvm_unreachable("invalid interlocking");
 }
 
+static llvm::Value *EmitIntegerExpr(CodeGenFunction &CGF, const Expr *E) {
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rjmccall wrote:

This is a very specialized operation with a very generic-sounding name.

https://github.com/llvm/llvm-project/pull/154203