[clang] [CIR][X86] Implement lowering for sqrt builtins (PR #169310)

[Andy Kaylor via cfe-commits]

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@@ -44,6 +46,96 @@
 
 using namespace cir;
 using namespace llvm;
+using namespace mlir;
+
+static std::string getLLVMIntrinsicNameForType(Type llvmTy) {
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andykaylor wrote:

This isn't used.

https://github.com/llvm/llvm-project/pull/169310