[SYCL] Use clang options in E2E test to recognize -std=c++20 (#16974)

lbushi25 · web-flow · commit b8a074275e0c · 2025-02-12T11:44:01.000-08:00
Use the `%cxx_std_option` LIT substitution to make sure the cpp standard
flag is handled correctly by the compiler in both Linux/Windows.
diff --git a/sycl/test-e2e/DeviceImageBackendContent/basic_test.cpp b/sycl/test-e2e/DeviceImageBackendContent/basic_test.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -std=c++20 -o %t.out
+// RUN: %{build} %cxx_std_optionc++20 -o %t.out
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// RUN: %{build} -std=c++20 -o %t.out`
	`1`	`+// RUN: %{build} %cxx_std_optionc++20 -o %t.out`
`2`	`2`	`// RUN: %{run} %t.out`
`3`	`3`
`4`	`4`	`#include <sycl/detail/core.hpp>`