[llvm] [X86][CodeGen] Add base trig intrinsic lowerings (PR #96222)

[Craig Topper via llvm-commits]

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@@ -26476,6 +26476,219 @@ This function returns the tangent of the specified operand, returning the
 same values as the libm ``tan`` functions would, and handles error
 conditions in the same way.
 
+'``llvm.experimental.constrained.asin``' Intrinsic
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Syntax:
+"""""""
+
+::
+
+      declare <type>
+      @llvm.experimental.constrained.asin(<type> <op1>,
+                                         metadata <rounding mode>,
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topperc wrote:

I think this should be indented 1 more space

https://github.com/llvm/llvm-project/pull/96222