riscv64: Add bitmanip extension flags (#5847)

cranelift/codegen/src/isa/riscv64/lower/isle.rs

@@ -279,16 +279,26 @@ impl generated_code::Context for IsleContext<'_, '_, MInst, Riscv64Backend> {
         ValueRegs::two(shamt, len_sub_shamt)
     }
 
-    fn has_b(&mut self) -> bool {
-        self.backend.isa_flags.has_b()
-    }
     fn has_zbkb(&mut self) -> bool {
         self.backend.isa_flags.has_zbkb()
     }
+
+    fn has_zba(&mut self) -> bool {
+        self.backend.isa_flags.has_zba()
+    }
+
     fn has_zbb(&mut self) -> bool {
         self.backend.isa_flags.has_zbb()
     }
 
+    fn has_zbc(&mut self) -> bool {
+        self.backend.isa_flags.has_zbc()
+    }
+
+    fn has_zbs(&mut self) -> bool {
+        self.backend.isa_flags.has_zbs()
+    }
+
     fn inst_output_get(&mut self, x: InstOutput, index: u8) -> ValueRegs {
         x[index as usize]
     }