[llvm] [Support] KnownFPClass: add static helpers for more trig intrinsics (PR #190609)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/Support/KnownFPClass.h llvm/lib/Analysis/ValueTracking.cpp llvm/lib/Support/KnownFPClass.cpp --diff_from_common_commit
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index b37e88f93..7f20f8f43 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -5270,16 +5270,35 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
       computeKnownFPClass(II->getArgOperand(0), DemandedElts, InterestedClasses,
                           KnownSrc, Q, Depth + 1);
       switch (IID) {
-      case Intrinsic::sin:  Known = KnownFPClass::sin(KnownSrc);  break;
-      case Intrinsic::cos:  Known = KnownFPClass::cos(KnownSrc);  break;
-      case Intrinsic::tan:  Known = KnownFPClass::tan(KnownSrc);  break;
-      case Intrinsic::sinh: Known = KnownFPClass::sinh(KnownSrc); break;
-      case Intrinsic::cosh: Known = KnownFPClass::cosh(KnownSrc); break;
-      case Intrinsic::tanh: Known = KnownFPClass::tanh(KnownSrc); break;
-      case Intrinsic::asin: Known = KnownFPClass::asin(KnownSrc); break;
-      case Intrinsic::acos: Known = KnownFPClass::acos(KnownSrc); break;
-      case Intrinsic::atan: Known = KnownFPClass::atan(KnownSrc); break;
-      default: llvm_unreachable("unhandled trig intrinsic");
+      case Intrinsic::sin:
+        Known = KnownFPClass::sin(KnownSrc);
+        break;
+      case Intrinsic::cos:
+        Known = KnownFPClass::cos(KnownSrc);
+        break;
+      case Intrinsic::tan:
+        Known = KnownFPClass::tan(KnownSrc);
+        break;
+      case Intrinsic::sinh:
+        Known = KnownFPClass::sinh(KnownSrc);
+        break;
+      case Intrinsic::cosh:
+        Known = KnownFPClass::cosh(KnownSrc);
+        break;
+      case Intrinsic::tanh:
+        Known = KnownFPClass::tanh(KnownSrc);
+        break;
+      case Intrinsic::asin:
+        Known = KnownFPClass::asin(KnownSrc);
+        break;
+      case Intrinsic::acos:
+        Known = KnownFPClass::acos(KnownSrc);
+        break;
+      case Intrinsic::atan:
+        Known = KnownFPClass::atan(KnownSrc);
+        break;
+      default:
+        llvm_unreachable("unhandled trig intrinsic");
       }
       break;
     }

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https://github.com/llvm/llvm-project/pull/190609