JIT: avoid local jtrue assertions involving floating types

Float relop equality does not imply bitwise equality. So skip
making local jtrue assertions about floating types.

Contributes to dotnet#93246.

Author: AndyAyersMS

src/coreclr/jit/assertionprop.cpp

@@ -2205,6 +2205,13 @@ AssertionInfo Compiler::optAssertionGenJtrue(GenTree* tree)
     GenTree* op1 = relop->AsOp()->gtOp1->gtCommaStoreVal();
     GenTree* op2 = relop->AsOp()->gtOp2->gtCommaStoreVal();
 
+    // Avoid creating local assertions for float types.
+    //
+    if (optLocalAssertionProp && varTypeIsFloating(op1))
+    {
+        return NO_ASSERTION_INDEX;
+    }
+
     // Check for op1 or op2 to be lcl var and if so, keep it in op1.
     if ((op1->gtOper != GT_LCL_VAR) && (op2->gtOper == GT_LCL_VAR))
     {