cranelift: Add LibCall tests

cranelift/filetests/filetests/runtests/call_libcall.clif

@@ -0,0 +1,28 @@
+test run
+target x86_64
+target aarch64
+target aarch64 sign_return_address
+target aarch64 has_pauth sign_return_address
+target s390x
+
+
+function %libcall_ceilf32(f32) -> f32 {
+    fn0 = %CeilF32(f32) -> f32
+
+block0(v0: f32):
+    v1 = call fn0(v0)
+    return v1
+}
+; run: %libcall_ceilf32(0x0.5) == 0x1.0
+
+
+function %libcall_indirect_ceilf32(f32) -> f32 {
+    fn0 = %CeilF32(f32) -> f32
+    ; sig0 = (f32) -> f32
+
+block0(v0: f32):
+    v1 = func_addr.i64 fn0
+    v2 = call_indirect.i64 sig0, v1(v0)
+    return v2
+}
+; run: %libcall_indirect_ceilf32(0x0.5) == 0x1.0