diff --git a/sycl/test-e2e/AddressSanitizer/out-of-bounds/private/multiple_private.cpp b/sycl/test-e2e/AddressSanitizer/out-of-bounds/private/multiple_private.cpp
index 284a04d2d9775..ec2a0b3fb435a 100644
--- a/sycl/test-e2e/AddressSanitizer/out-of-bounds/private/multiple_private.cpp
+++ b/sycl/test-e2e/AddressSanitizer/out-of-bounds/private/multiple_private.cpp
@@ -1,7 +1,7 @@
 // REQUIRES: linux
-// RUN: %{build} %device_asan_flags -DVAR=1 -O2 -g -o %t1
+// RUN: %{build} -Wno-error=array-bounds %device_asan_flags -DVAR=1 -O2 -g -o %t1
 // RUN: env SYCL_PREFER_UR=1 %{run} not %t1 2>&1 | FileCheck --check-prefixes CHECK,CHECK-VAR1 %s
-// RUN: %{build} %device_asan_flags -DVAR=2 -O2 -g -o %t2
+// RUN: %{build} -Wno-error=array-bounds %device_asan_flags -DVAR=2 -O2 -g -o %t2
 // RUN: env SYCL_PREFER_UR=1 %{run} not %t2 2>&1 | FileCheck --check-prefixes CHECK,CHECK-VAR2 %s
 // RUN: %{build} %device_asan_flags -DVAR=3 -O2 -g -o %t3
 // RUN: env SYCL_PREFER_UR=1 %{run} not %t3 2>&1 | FileCheck --check-prefixes CHECK,CHECK-VAR3 %s
diff --git a/sycl/test-e2e/Basic/built-ins/marray_relational.cpp b/sycl/test-e2e/Basic/built-ins/marray_relational.cpp
index 85e101d556bfb..390a880590af6 100644
--- a/sycl/test-e2e/Basic/built-ins/marray_relational.cpp
+++ b/sycl/test-e2e/Basic/built-ins/marray_relational.cpp
@@ -1,6 +1,6 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
-// RUN: %if preview-breaking-changes-supported %{ %{build} -fpreview-breaking-changes -o %t_preview.out %}
+// RUN: %if preview-breaking-changes-supported %{ %{build} -Wno-error=deprecated-declarations -fpreview-breaking-changes -o %t_preview.out %}
 // RUN: %if preview-breaking-changes-supported %{ %{run} %t_preview.out%}
 
 #include "helpers.hpp"
diff --git a/sycl/test-e2e/Basic/cuda_max_wgs_error.cpp b/sycl/test-e2e/Basic/cuda_max_wgs_error.cpp
index 2fcc254157e28..48775bdb06678 100644
--- a/sycl/test-e2e/Basic/cuda_max_wgs_error.cpp
+++ b/sycl/test-e2e/Basic/cuda_max_wgs_error.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out -fno-sycl-id-queries-fit-in-int
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out -fno-sycl-id-queries-fit-in-int
 // RUN: %{run} %t.out
 //
 // REQUIRES: cuda
diff --git a/sycl/test-e2e/Basic/info.cpp b/sycl/test-e2e/Basic/info.cpp
index 1b64ab886cd8f..3fd83be26e994 100644
--- a/sycl/test-e2e/Basic/info.cpp
+++ b/sycl/test-e2e/Basic/info.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -D__SYCL_INTERNAL_API -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -D__SYCL_INTERNAL_API -o %t.out
 // RUN: %{run} %t.out
 
 //==----------------info.cpp - SYCL objects get_info() test ----------------==//
diff --git a/sycl/test-e2e/Basic/multi_ptr.cpp b/sycl/test-e2e/Basic/multi_ptr.cpp
index 52ed97e6f541f..885f08cfea134 100644
--- a/sycl/test-e2e/Basic/multi_ptr.cpp
+++ b/sycl/test-e2e/Basic/multi_ptr.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-dead-args-optimization -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -o %t.out
 // RUN: %{run} %t.out
 
 //==--------------- multi_ptr.cpp - SYCL multi_ptr test --------------------==//
diff --git a/sycl/test-e2e/Basic/multi_ptr_legacy.cpp b/sycl/test-e2e/Basic/multi_ptr_legacy.cpp
index da0d6f56eab5c..bd09e04b23761 100644
--- a/sycl/test-e2e/Basic/multi_ptr_legacy.cpp
+++ b/sycl/test-e2e/Basic/multi_ptr_legacy.cpp
@@ -1,6 +1,6 @@
-// RUN: %{build} -fsycl-dead-args-optimization -DSYCL2020_DISABLE_DEPRECATION_WARNINGS -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -DSYCL2020_DISABLE_DEPRECATION_WARNINGS -o %t.out
 // RUN: %{run} %t.out
-// RUN: %{build} -DRESTRICT_WRITE_ACCESS_TO_CONSTANT_PTR -fsycl-dead-args-optimization -DSYCL2020_DISABLE_DEPRECATION_WARNINGS -o %t1.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -DRESTRICT_WRITE_ACCESS_TO_CONSTANT_PTR -fsycl-dead-args-optimization -DSYCL2020_DISABLE_DEPRECATION_WARNINGS -o %t1.out
 // RUN: %{run} %t1.out
 
 //==-------- multi_ptr_legacy.cpp - SYCL multi_ptr legacy test -------------==//
diff --git a/sycl/test-e2e/Basic/multi_ptr_legacy_usm_addr_ext.cpp b/sycl/test-e2e/Basic/multi_ptr_legacy_usm_addr_ext.cpp
index 6c234a9315c44..76651914de1b6 100644
--- a/sycl/test-e2e/Basic/multi_ptr_legacy_usm_addr_ext.cpp
+++ b/sycl/test-e2e/Basic/multi_ptr_legacy_usm_addr_ext.cpp
@@ -1,7 +1,7 @@
 // REQUIRES: accelerator
-// RUN: %{build} -D__ENABLE_USM_ADDR_SPACE__ -fsycl-dead-args-optimization -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -D__ENABLE_USM_ADDR_SPACE__ -fsycl-dead-args-optimization -o %t.out
 // RUN: %{run} %t.out
-// RUN: %{build} -D__ENABLE_USM_ADDR_SPACE__ -DRESTRICT_WRITE_ACCESS_TO_CONSTANT_PTR -fsycl-dead-args-optimization -o %t1.out
+// RUN: %{build} -Wno-error=deprecated-declarations -D__ENABLE_USM_ADDR_SPACE__ -DRESTRICT_WRITE_ACCESS_TO_CONSTANT_PTR -fsycl-dead-args-optimization -o %t1.out
 // RUN: %{run} %t1.out
 
 //==-- multi_ptr_legacy_usm_addr_ext.cpp - SYCL multi_ptr legacy test ext --==//
diff --git a/sycl/test-e2e/Basic/offset-accessor-get_pointer.cpp b/sycl/test-e2e/Basic/offset-accessor-get_pointer.cpp
index 097405ef5763b..182a008d37e6c 100644
--- a/sycl/test-e2e/Basic/offset-accessor-get_pointer.cpp
+++ b/sycl/test-e2e/Basic/offset-accessor-get_pointer.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
 
 // Per the SYCL 2020 spec (4.7.6.12 and others)
diff --git a/sycl/test-e2e/Basic/parallel_for_indexers.cpp b/sycl/test-e2e/Basic/parallel_for_indexers.cpp
index e9834e245e94c..3c41ac04fc8b1 100644
--- a/sycl/test-e2e/Basic/parallel_for_indexers.cpp
+++ b/sycl/test-e2e/Basic/parallel_for_indexers.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t2.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t2.out
 // RUN: %{run} %t2.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/Basic/range_offset_fit_in_int.cpp b/sycl/test-e2e/Basic/range_offset_fit_in_int.cpp
index 0d1ea0cd67380..c58b6460918c8 100644
--- a/sycl/test-e2e/Basic/range_offset_fit_in_int.cpp
+++ b/sycl/test-e2e/Basic/range_offset_fit_in_int.cpp
@@ -1,5 +1,5 @@
 // REQUIRES: cpu
-// RUN: %{build} -fsycl-id-queries-fit-in-int -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-id-queries-fit-in-int -o %t.out
 // RUN: %{run} %t.out
 
 #include <climits>
diff --git a/sycl/test-e2e/Basic/sampler/sampler.cpp b/sycl/test-e2e/Basic/sampler/sampler.cpp
index 103bcd5d57fab..738408812f098 100644
--- a/sycl/test-e2e/Basic/sampler/sampler.cpp
+++ b/sycl/test-e2e/Basic/sampler/sampler.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: aspect-ext_intel_legacy_image
 // TODO: Can we move it to sycl/test?
-// RUN: %{build} -fsycl-dead-args-optimization -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -o %t.out
 // RUN: %{run} %t.out
 
 //==--------------- sampler.cpp - SYCL sampler basic test ------------------==//
diff --git a/sycl/test-e2e/CMakeLists.txt b/sycl/test-e2e/CMakeLists.txt
index c8b096315a8d6..96018d8b30b62 100644
--- a/sycl/test-e2e/CMakeLists.txt
+++ b/sycl/test-e2e/CMakeLists.txt
@@ -60,6 +60,7 @@ if(MSVC AND NOT SYCL_TEST_E2E_STANDALONE)
 else()
   set(SYCL_E2E_CLANG_CXX_FLAGS ${CMAKE_CXX_FLAGS})
 endif()
+list(APPEND SYCL_E2E_CLANG_CXX_FLAGS "-Werror")
 
 if(SYCL_TEST_E2E_STANDALONE)
   configure_file("${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in"
diff --git a/sycl/test-e2e/Complex/sycl_complex_math_test.cpp b/sycl/test-e2e/Complex/sycl_complex_math_test.cpp
index 1178bdf0b5ffe..899fb82667271 100644
--- a/sycl/test-e2e/Complex/sycl_complex_math_test.cpp
+++ b/sycl/test-e2e/Complex/sycl_complex_math_test.cpp
@@ -1,6 +1,6 @@
 // DEFINE: %{mathflags} = %if cl_options %{/clang:-fno-fast-math%} %else %{-fno-fast-math%}
 
-// RUN: %{build} -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl_complex_helper.hpp"
diff --git a/sycl/test-e2e/Complex/sycl_complex_operator_test.cpp b/sycl/test-e2e/Complex/sycl_complex_operator_test.cpp
index 8894f5d965462..23eefc323a0ef 100644
--- a/sycl/test-e2e/Complex/sycl_complex_operator_test.cpp
+++ b/sycl/test-e2e/Complex/sycl_complex_operator_test.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl_complex_helper.hpp"
diff --git a/sycl/test-e2e/Complex/sycl_complex_pow_test.cpp b/sycl/test-e2e/Complex/sycl_complex_pow_test.cpp
index 91d58a4cdeebb..21a362a99d2ef 100644
--- a/sycl/test-e2e/Complex/sycl_complex_pow_test.cpp
+++ b/sycl/test-e2e/Complex/sycl_complex_pow_test.cpp
@@ -1,6 +1,6 @@
 // DEFINE: %{mathflags} = %if cl_options %{/clang:-fno-fast-math%} %else %{-fno-fast-math%}
 
-// RUN: %{build} -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl_complex_helper.hpp"
diff --git a/sycl/test-e2e/Complex/sycl_complex_stream_test.cpp b/sycl/test-e2e/Complex/sycl_complex_stream_test.cpp
index d8d645f6ac7dc..eb5c98a7b3ba7 100644
--- a/sycl/test-e2e/Complex/sycl_complex_stream_test.cpp
+++ b/sycl/test-e2e/Complex/sycl_complex_stream_test.cpp
@@ -1,6 +1,6 @@
 // DEFINE: %{mathflags} = %if cl_options %{/clang:-fno-finite-math-only%} %else %{-fno-finite-math-only%}
 
-// RUN: %{build} -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel %{mathflags} -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl_complex_helper.hpp"
diff --git a/sycl/test-e2e/Config/kernel_from_file.cpp b/sycl/test-e2e/Config/kernel_from_file.cpp
index a8b480a89c561..defbbac5601c8 100644
--- a/sycl/test-e2e/Config/kernel_from_file.cpp
+++ b/sycl/test-e2e/Config/kernel_from_file.cpp
@@ -6,7 +6,7 @@
 // FIXME separate compilation requires -fno-sycl-dead-args-optimization
 // As we are doing a separate device compilation here, we need to explicitly
 // add the device lib instrumentation (itt_compiler_wrapper)
-// RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 -fsycl-device-only -fno-sycl-dead-args-optimization -Xclang -fsycl-int-header=%t.h -c %s -o %t.bc -Xclang -verify-ignore-unexpected=note,warning -Wno-sycl-strict
+// RUN: %clangxx -Wno-error=ignored-attributes -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 -fsycl-device-only -fno-sycl-dead-args-optimization -Xclang -fsycl-int-header=%t.h -c %s -o %t.bc -Xclang -verify-ignore-unexpected=note,warning -Wno-sycl-strict
 // >> ---- unbundle compiler wrapper and sanitizer device objects
 // RUN: clang-offload-bundler -type=o -targets=sycl-spir64-unknown-unknown -input=%sycl_static_libs_dir/libsycl-itt-compiler-wrappers%obj_ext -output=%t_compiler_wrappers.bc -unbundle
 // RUN: %if linux %{ clang-offload-bundler -type=o -targets=sycl-spir64-unknown-unknown -input=%sycl_static_libs_dir/libsycl-sanitizer%obj_ext -output=%t_sanitizer.bc -unbundle %}
@@ -14,7 +14,7 @@
 // RUN: %if linux %{ llvm-link -o=%t_app.bc %t.bc %t_compiler_wrappers.bc %t_sanitizer.bc %} %else %{ llvm-link -o=%t_app.bc %t.bc %t_compiler_wrappers.bc %}
 // >> ---- translate to SPIR-V
 // RUN: llvm-spirv -o %t.spv %t_app.bc
-// RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 %include_option %t.h %s -o %t.out %sycl_options -fno-sycl-dead-args-optimization -Xclang -verify-ignore-unexpected=note,warning
+// RUN: %clangxx -Wno-error=ignored-attributes -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 %include_option %t.h %s -o %t.out %sycl_options -fno-sycl-dead-args-optimization -Xclang -verify-ignore-unexpected=note,warning
 // RUN: env SYCL_USE_KERNEL_SPV=%t.spv %{run} %t.out | FileCheck %s
 // CHECK: Passed
 
diff --git a/sycl/test-e2e/Config/select_device.cpp b/sycl/test-e2e/Config/select_device.cpp
index 8ed6221bfeb43..a1c67d9fcbda1 100644
--- a/sycl/test-e2e/Config/select_device.cpp
+++ b/sycl/test-e2e/Config/select_device.cpp
@@ -1,5 +1,5 @@
 // REQUIRES: gpu
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=return-type -o %t.out
 //
 // RUN: env ONEAPI_DEVICE_SELECTOR="*:gpu" %{run-unfiltered-devices} %t.out DEVICE_INFO write > %t.txt
 // RUN: env ONEAPI_DEVICE_SELECTOR="*:gpu" %{run-unfiltered-devices} %t.out DEVICE_INFO read %t.txt
diff --git a/sycl/test-e2e/DeprecatedFeatures/lit.local.cfg b/sycl/test-e2e/DeprecatedFeatures/lit.local.cfg
new file mode 100644
index 0000000000000..17484918ac865
--- /dev/null
+++ b/sycl/test-e2e/DeprecatedFeatures/lit.local.cfg
@@ -0,0 +1,6 @@
+original_clangxx=""
+for substitution in config.substitutions:
+  if substitution[0] == "%clangxx":
+    original_clangxx=substitution[1]
+config.substitutions.insert(0,
+  ("%clangxx", original_clangxx + " -Wno-error=deprecated-declarations "))
diff --git a/sycl/test-e2e/DeviceCodeSplit/split-per-kernel.cpp b/sycl/test-e2e/DeviceCodeSplit/split-per-kernel.cpp
index b58e1ce59899a..f45f2333a853e 100644
--- a/sycl/test-e2e/DeviceCodeSplit/split-per-kernel.cpp
+++ b/sycl/test-e2e/DeviceCodeSplit/split-per-kernel.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out \
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-device-code-split=per_kernel -o %t.out \
 // RUN: -fsycl-dead-args-optimization
 // RUN: %{run} %t.out
 //
diff --git a/sycl/test-e2e/DeviceCodeSplit/split-per-source-main.cpp b/sycl/test-e2e/DeviceCodeSplit/split-per-source-main.cpp
index 7cea0450f90df..4f9063c18e784 100644
--- a/sycl/test-e2e/DeviceCodeSplit/split-per-source-main.cpp
+++ b/sycl/test-e2e/DeviceCodeSplit/split-per-source-main.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_source -I %S/Inputs -o %t.out %S/Inputs/split-per-source-second-file.cpp \
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-device-code-split=per_source -I %S/Inputs -o %t.out %S/Inputs/split-per-source-second-file.cpp \
 // RUN: -fsycl-dead-args-optimization
 // RUN: %{run} %t.out
 //
diff --git a/sycl/test-e2e/DeviceLib/ITTAnnotations/atomic.cpp b/sycl/test-e2e/DeviceLib/ITTAnnotations/atomic.cpp
index b6650ed166bba..272c21885365f 100644
--- a/sycl/test-e2e/DeviceLib/ITTAnnotations/atomic.cpp
+++ b/sycl/test-e2e/DeviceLib/ITTAnnotations/atomic.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-instrument-device-code -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-instrument-device-code -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl/atomic_ref.hpp"
diff --git a/sycl/test-e2e/DeviceLib/ITTAnnotations/barrier.cpp b/sycl/test-e2e/DeviceLib/ITTAnnotations/barrier.cpp
index 42156b8710922..6597b06576744 100644
--- a/sycl/test-e2e/DeviceLib/ITTAnnotations/barrier.cpp
+++ b/sycl/test-e2e/DeviceLib/ITTAnnotations/barrier.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-instrument-device-code -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-instrument-device-code -o %t.out
 // RUN: %{run} %t.out
 
 #include "sycl/detail/core.hpp"
diff --git a/sycl/test-e2e/DeviceLib/built-ins/scalar_relational.cpp b/sycl/test-e2e/DeviceLib/built-ins/scalar_relational.cpp
index 0eab2036a98b8..d67cc5d79e5df 100644
--- a/sycl/test-e2e/DeviceLib/built-ins/scalar_relational.cpp
+++ b/sycl/test-e2e/DeviceLib/built-ins/scalar_relational.cpp
@@ -1,5 +1,5 @@
 // DEFINE: %{mathflags} = %if cl_options %{/clang:-fno-fast-math%} %else %{-fno-fast-math%}
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out %{mathflags}
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -o %t.out %{mathflags}
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/DeviceLib/cmath_test.cpp b/sycl/test-e2e/DeviceLib/cmath_test.cpp
index 8206cba22bc8b..54e0c14d08bfa 100644
--- a/sycl/test-e2e/DeviceLib/cmath_test.cpp
+++ b/sycl/test-e2e/DeviceLib/cmath_test.cpp
@@ -4,7 +4,7 @@
 // RUN: %{build} -fno-builtin %{mathflags} -o %t.out
 // RUN: %{run} %t.out
 
-// RUN: %{build} -fno-builtin -fsycl-device-lib-jit-link %{mathflags} -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fno-builtin -fsycl-device-lib-jit-link %{mathflags} -o %t.out
 // RUN: %if !gpu %{ %{run} %t.out %}
 //
 // // Check that --fast-math works with cmath funcs for CUDA
diff --git a/sycl/test-e2e/DeviceLib/math_override_test.cpp b/sycl/test-e2e/DeviceLib/math_override_test.cpp
index 491f21d76a486..27929099f7fc7 100644
--- a/sycl/test-e2e/DeviceLib/math_override_test.cpp
+++ b/sycl/test-e2e/DeviceLib/math_override_test.cpp
@@ -1,5 +1,5 @@
 // UNSUPPORTED: windows
-// RUN: %clangxx -fsycl %s -o %t.out -fno-builtin
+// RUN: %clangxx -fsycl %s -Wno-error=unused-command-line-argument -o %t.out -fno-builtin
 #include <iostream>
 #include <math.h>
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/DeviceLib/math_test.cpp b/sycl/test-e2e/DeviceLib/math_test.cpp
index ccc368a21e668..0380234575061 100644
--- a/sycl/test-e2e/DeviceLib/math_test.cpp
+++ b/sycl/test-e2e/DeviceLib/math_test.cpp
@@ -5,7 +5,7 @@
 // RUN: %{build} %{mathflags} -o %t.out
 // RUN: %{run} %t.out
 
-// RUN: %{build} -fsycl-device-lib-jit-link %{mathflags} -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-device-lib-jit-link %{mathflags} -o %t.out
 // RUN: %if !gpu %{ %{run} %t.out %}
 
 #include "math_utils.hpp"
diff --git a/sycl/test-e2e/DeviceLib/separate_compile_test.cpp b/sycl/test-e2e/DeviceLib/separate_compile_test.cpp
index 6d9d23e438b1c..a453c3c638d30 100644
--- a/sycl/test-e2e/DeviceLib/separate_compile_test.cpp
+++ b/sycl/test-e2e/DeviceLib/separate_compile_test.cpp
@@ -3,13 +3,13 @@
 // RUN: %clangxx -fsycl -fsycl-link %S/std_complex_math_test.cpp -o %t_device.o %{mathflags}
 // RUN: %clangxx -fsycl-device-only -Xclang -fsycl-int-header=std_complex_math_test_ihdr.h %S/std_complex_math_test.cpp -Wno-sycl-strict %{mathflags}
 // >> host compilation...
-// RUN: %clangxx %cxx_std_optionc++17 %include_option std_complex_math_test_ihdr.h -c %S/std_complex_math_test.cpp -o %t_host.o %sycl_options -Wno-sycl-strict %{mathflags}
+// RUN: %clangxx -Wno-error=unused-command-line-argument -Wno-error=ignored-attributes %cxx_std_optionc++17 %include_option std_complex_math_test_ihdr.h -c %S/std_complex_math_test.cpp -o %t_host.o %sycl_options -Wno-sycl-strict %{mathflags}
 // RUN: %clangxx %t_host.o %t_device.o -o %t.out %sycl_options %{mathflags}
 // RUN: %{run} %t.out
 
 // RUN: %clangxx -fsycl -fsycl-link  %S/std_complex_math_fp64_test.cpp -o %t_fp64_device.o %{mathflags}
 // RUN: %clangxx -fsycl-device-only -Xclang -fsycl-int-header=std_complex_math_fp64_test_ihdr.h %S/std_complex_math_fp64_test.cpp -Wno-sycl-strict %{mathflags}
 // >> host compilation...
-// RUN: %clangxx %cxx_std_optionc++17 %include_option std_complex_math_fp64_test_ihdr.h -c %S/std_complex_math_fp64_test.cpp -o %t_fp64_host.o %sycl_options -Wno-sycl-strict %{mathflags}
+// RUN: %clangxx -Wno-error=unused-command-line-argument -Wno-error=ignored-attributes %cxx_std_optionc++17 %include_option std_complex_math_fp64_test_ihdr.h -c %S/std_complex_math_fp64_test.cpp -o %t_fp64_host.o %sycl_options -Wno-sycl-strict %{mathflags}
 // RUN: %clangxx %t_fp64_host.o %t_fp64_device.o -o %t_fp64.out %sycl_options %{mathflags}
 // RUN: %{run} %t.out
diff --git a/sycl/test-e2e/DeviceLib/string_test.cpp b/sycl/test-e2e/DeviceLib/string_test.cpp
index a52f7684424c6..c518661303b6e 100644
--- a/sycl/test-e2e/DeviceLib/string_test.cpp
+++ b/sycl/test-e2e/DeviceLib/string_test.cpp
@@ -1,8 +1,8 @@
 // UNSUPPORTED: hip
-// RUN: %{build} -fno-builtin -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -Wno-error=pointer-to-int-cast -fno-builtin -o %t.out
 // RUN: %{run} %t.out
 //
-// RUN: %{build} -fno-builtin -fsycl-device-lib-jit-link -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -Wno-error=deprecated-declarations -Wno-error=pointer-to-int-cast -fno-builtin -fsycl-device-lib-jit-link -o %t.out
 // RUN: %if !gpu %{ %{run} %t.out %}
 
 // UNSUPPORTED: accelerator
diff --git a/sycl/test-e2e/DiscardEvents/discard_events_accessors.cpp b/sycl/test-e2e/DiscardEvents/discard_events_accessors.cpp
index e6f298cbb1be6..aa0499bb4c99b 100644
--- a/sycl/test-e2e/DiscardEvents/discard_events_accessors.cpp
+++ b/sycl/test-e2e/DiscardEvents/discard_events_accessors.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 //
 // RUN: env SYCL_UR_TRACE=1 %{run} %t.out &> %t.txt ; FileCheck %s --input-file %t.txt
 //
diff --git a/sycl/test-e2e/ESIMD/lit.local.cfg b/sycl/test-e2e/ESIMD/lit.local.cfg
index 239c2e46e691b..2f910e5bed07e 100644
--- a/sycl/test-e2e/ESIMD/lit.local.cfg
+++ b/sycl/test-e2e/ESIMD/lit.local.cfg
@@ -12,3 +12,11 @@ if 'gpu-intel-gen9' in config.available_features and platform.system() == 'Windo
 # We should investigate why OCL fails separately.
 if 'gpu-intel-dg2' in config.available_features:
   config.required_features += ['level_zero']
+
+# TODO: Remove this once the warnings are resolved
+original_clangxx=""
+for substitution in config.substitutions:
+  if substitution[0] == "%clangxx":
+    original_clangxx=substitution[1]
+config.substitutions.insert(0,
+  ("%clangxx", original_clangxx+" -Wno-error=deprecated-declarations"))
diff --git a/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32.cpp b/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32.cpp
index 58a3ef70fd4fd..45ca8e44b06a1 100644
--- a/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32.cpp
+++ b/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32.cpp
@@ -13,7 +13,7 @@
 // optimizations to produce correct result.
 // DEFINE: %{fpflags} = %if cl_options %{/clang:-ffp-exception-behavior=maytrap%} %else %{-ffp-exception-behavior=maytrap%}
 
-// RUN: %{build} %{fpflags} -o %t.out
+// RUN: %{build} -Wno-error=unsupported-floating-point-opt %{fpflags} -o %t.out
 // RUN: %{run} %t.out
 
 #include "Inputs/lsc_usm_store.hpp"
diff --git a/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32_64.cpp b/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32_64.cpp
index 14851907dbc9f..0098b8d388406 100644
--- a/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32_64.cpp
+++ b/sycl/test-e2e/ESIMD/lsc/lsc_usm_store_u32_64.cpp
@@ -13,7 +13,7 @@
 // optimizations to produce correct result.
 // DEFINE: %{fpflags} = %if cl_options %{/clang:-ffp-exception-behavior=maytrap%} %else %{-ffp-exception-behavior=maytrap%}
 
-// RUN: %{build} %{fpflags} -o %t.out
+// RUN: %{build} -Wno-error=unsupported-floating-point-opt %{fpflags} -o %t.out
 // RUN: %{run} %t.out
 
 // 64 bit offset variant of the test - uses 64 bit offsets.
diff --git a/sycl/test-e2e/ESIMD/regression/dgetrf.cpp b/sycl/test-e2e/ESIMD/regression/dgetrf.cpp
index f704ed4c5d8f6..33209e39a93f9 100644
--- a/sycl/test-e2e/ESIMD/regression/dgetrf.cpp
+++ b/sycl/test-e2e/ESIMD/regression/dgetrf.cpp
@@ -5,7 +5,7 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
-// RUN: %{build} -I%S/.. -o %t.out
+// RUN: %{build} -Wno-error=format -I%S/.. -o %t.out
 // RUN: %{run} %t.out 3 2 1
 //
 // This test checks the correctness of ESIMD program for batched LU
diff --git a/sycl/test-e2e/ESIMD/regression/dgetrf_ref.cpp b/sycl/test-e2e/ESIMD/regression/dgetrf_ref.cpp
index 0712554f12ef8..bfaa7c43c9ffe 100644
--- a/sycl/test-e2e/ESIMD/regression/dgetrf_ref.cpp
+++ b/sycl/test-e2e/ESIMD/regression/dgetrf_ref.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// RUN: %{build} -DUSE_REF -I%S/.. -o %t.ref.out
+// RUN: %{build} -Wno-error=format -DUSE_REF -I%S/.. -o %t.ref.out
 // RUN: %{run} %t.ref.out 3 2 1
 //
 // This test checks the correctness of ESIMD program for batched LU
diff --git a/sycl/test-e2e/EnqueueNativeCommand/custom-command-cuda.cpp b/sycl/test-e2e/EnqueueNativeCommand/custom-command-cuda.cpp
index 2aa8d9a4c590f..ff73a763b2dae 100644
--- a/sycl/test-e2e/EnqueueNativeCommand/custom-command-cuda.cpp
+++ b/sycl/test-e2e/EnqueueNativeCommand/custom-command-cuda.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out %cuda_options
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out %cuda_options
 // RUN: %{run} %t.out
 // REQUIRES: cuda, cuda_dev_kit
 
diff --git a/sycl/test-e2e/FilterSelector/reuse.cpp b/sycl/test-e2e/FilterSelector/reuse.cpp
index d738386ab921a..e2fa81ab92b43 100644
--- a/sycl/test-e2e/FilterSelector/reuse.cpp
+++ b/sycl/test-e2e/FilterSelector/reuse.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t1.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t1.out
 // RUN: %{run} %t1.out
 
 //==----------------- reuse.cpp - filter_selector reuse test ---------------==//
diff --git a/sycl/test-e2e/FilterSelector/select.cpp b/sycl/test-e2e/FilterSelector/select.cpp
index bccd564e89a04..7bec788e23a6e 100644
--- a/sycl/test-e2e/FilterSelector/select.cpp
+++ b/sycl/test-e2e/FilterSelector/select.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t1.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t1.out
 // RUN: %{run} %t1.out
 
 //==------------------- select.cpp - filter_selector test ------------------==//
diff --git a/sycl/test-e2e/FilterSelector/select_device_level_zero.cpp b/sycl/test-e2e/FilterSelector/select_device_level_zero.cpp
index 5d962d2a51948..53d16b798ebcc 100644
--- a/sycl/test-e2e/FilterSelector/select_device_level_zero.cpp
+++ b/sycl/test-e2e/FilterSelector/select_device_level_zero.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: env ONEAPI_DEVICE_SELECTOR=level_zero:gpu %{run-unfiltered-devices} %t.out
 //
 // Checks if only specified device types can be acquired from select_device
diff --git a/sycl/test-e2e/GroupAlgorithm/different_types.cpp b/sycl/test-e2e/GroupAlgorithm/different_types.cpp
index 79bba3745cf87..915f14431ee88 100644
--- a/sycl/test-e2e/GroupAlgorithm/different_types.cpp
+++ b/sycl/test-e2e/GroupAlgorithm/different_types.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -I . -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -I . -o %t.out
 // RUN: %{run} %t.out
 
 #include "../helpers.hpp"
diff --git a/sycl/test-e2e/GroupAlgorithm/exclusive_scan_sycl2020.cpp b/sycl/test-e2e/GroupAlgorithm/exclusive_scan_sycl2020.cpp
index e90b70137473a..7e925a783afb2 100644
--- a/sycl/test-e2e/GroupAlgorithm/exclusive_scan_sycl2020.cpp
+++ b/sycl/test-e2e/GroupAlgorithm/exclusive_scan_sycl2020.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -I . -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -I . -o %t.out
 // RUN: %{run} %t.out
 
 #include "../helpers.hpp"
diff --git a/sycl/test-e2e/GroupAlgorithm/inclusive_scan_sycl2020.cpp b/sycl/test-e2e/GroupAlgorithm/inclusive_scan_sycl2020.cpp
index e73215714a7c7..32ef97fbc2837 100644
--- a/sycl/test-e2e/GroupAlgorithm/inclusive_scan_sycl2020.cpp
+++ b/sycl/test-e2e/GroupAlgorithm/inclusive_scan_sycl2020.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -I . -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -I . -o %t.out
 // RUN: %{run} %t.out
 
 #include "../helpers.hpp"
diff --git a/sycl/test-e2e/GroupAlgorithm/load_store/odd_wg_size.cpp b/sycl/test-e2e/GroupAlgorithm/load_store/odd_wg_size.cpp
index c5e0ce225427a..adce5e9f588bc 100644
--- a/sycl/test-e2e/GroupAlgorithm/load_store/odd_wg_size.cpp
+++ b/sycl/test-e2e/GroupAlgorithm/load_store/odd_wg_size.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=incorrect-sub-group-size -o %t.out
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/GroupAlgorithm/load_store/partial_sg.cpp b/sycl/test-e2e/GroupAlgorithm/load_store/partial_sg.cpp
index e74563fae97d2..72b87364f0ee9 100644
--- a/sycl/test-e2e/GroupAlgorithm/load_store/partial_sg.cpp
+++ b/sycl/test-e2e/GroupAlgorithm/load_store/partial_sg.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=incorrect-sub-group-size -o %t.out
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/GroupLocalMemory/group_local_memory.cpp b/sycl/test-e2e/GroupLocalMemory/group_local_memory.cpp
index 29f75b0ece1d1..7356f94a69ff8 100644
--- a/sycl/test-e2e/GroupLocalMemory/group_local_memory.cpp
+++ b/sycl/test-e2e/GroupLocalMemory/group_local_memory.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
 //
 // XFAIL: hip_nvidia
diff --git a/sycl/test-e2e/GroupLocalMemory/no_early_opt.cpp b/sycl/test-e2e/GroupLocalMemory/no_early_opt.cpp
index 0039e2b872a30..1091cf90b6dca 100644
--- a/sycl/test-e2e/GroupLocalMemory/no_early_opt.cpp
+++ b/sycl/test-e2e/GroupLocalMemory/no_early_opt.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fno-sycl-early-optimizations -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fno-sycl-early-optimizations -o %t.out
 // RUN: %{run} %t.out
 //
 // XFAIL: hip_nvidia
diff --git a/sycl/test-e2e/HostInteropTask/interop-task-hip.cpp b/sycl/test-e2e/HostInteropTask/interop-task-hip.cpp
index 7682f4ad25160..6daadc97888fc 100644
--- a/sycl/test-e2e/HostInteropTask/interop-task-hip.cpp
+++ b/sycl/test-e2e/HostInteropTask/interop-task-hip.cpp
@@ -1,6 +1,6 @@
 // FIXME: the rocm include path and link path are highly platform dependent,
 // we should set this with some variable instead.
-// RUN: %{build} -o %t.out -I/opt/rocm/include -L/opt/rocm/lib -lamdhip64
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out -I/opt/rocm/include -L/opt/rocm/lib -lamdhip64
 // RUN: %{run} %t.out
 // REQUIRES: hip
 
diff --git a/sycl/test-e2e/HostInteropTask/interop-task.cpp b/sycl/test-e2e/HostInteropTask/interop-task.cpp
index 668affc96a7c0..e9a22bc816a21 100644
--- a/sycl/test-e2e/HostInteropTask/interop-task.cpp
+++ b/sycl/test-e2e/HostInteropTask/interop-task.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out %threads_lib %opencl_lib
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out %threads_lib %opencl_lib
 // RUN: %{run} %t.out
 // UNSUPPORTED: level_zero, cuda
 // REQUIRES: opencl, opencl_icd
diff --git a/sycl/test-e2e/KernelAndProgram/kernel-bundle-merge-options-env.cpp b/sycl/test-e2e/KernelAndProgram/kernel-bundle-merge-options-env.cpp
index c2589dcd42f88..d41e188cc2b0c 100644
--- a/sycl/test-e2e/KernelAndProgram/kernel-bundle-merge-options-env.cpp
+++ b/sycl/test-e2e/KernelAndProgram/kernel-bundle-merge-options-env.cpp
@@ -3,7 +3,7 @@
 // RUN: %{build} -DSYCL_DISABLE_FALLBACK_ASSERT=1 -o %t.out %debug_option
 // RUN: env SYCL_UR_TRACE=1 SYCL_PROGRAM_COMPILE_OPTIONS=-DENV_COMPILE_OPTS SYCL_PROGRAM_LINK_OPTIONS=-DENV_LINK_OPTS SYCL_PROGRAM_APPEND_COMPILE_OPTIONS=-DENV_APPEND_COMPILE_OPTS SYCL_PROGRAM_APPEND_LINK_OPTIONS=-DENV_APPEND_LINK_OPTS %{run} %t.out | FileCheck %s
 // Check that options are overrided
-// RUN: %{build} -DSYCL_DISABLE_FALLBACK_ASSERT=1 -Xsycl-target-linker=spir64 -DBAR -Xsycl-target-frontend=spir64 -DBAR_COMPILE -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -DSYCL_DISABLE_FALLBACK_ASSERT=1 -Xsycl-target-linker=spir64 -DBAR -Xsycl-target-frontend=spir64 -DBAR_COMPILE -o %t.out
 // RUN: env SYCL_UR_TRACE=1 SYCL_PROGRAM_COMPILE_OPTIONS=-DENV_COMPILE_OPTS SYCL_PROGRAM_LINK_OPTIONS=-DENV_LINK_OPTS SYCL_PROGRAM_APPEND_COMPILE_OPTIONS=-DENV_APPEND_COMPILE_OPTS SYCL_PROGRAM_APPEND_LINK_OPTIONS=-DENV_APPEND_LINK_OPTS %{run} %t.out | FileCheck %s
 // UNSUPPORTED: hip
 
diff --git a/sycl/test-e2e/KernelAndProgram/target_compile_fast.cpp b/sycl/test-e2e/KernelAndProgram/target_compile_fast.cpp
index 2501ca0b6e2df..0e0fd4ffb0693 100644
--- a/sycl/test-e2e/KernelAndProgram/target_compile_fast.cpp
+++ b/sycl/test-e2e/KernelAndProgram/target_compile_fast.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -ftarget-compile-fast -o %t_with.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -ftarget-compile-fast -o %t_with.out
 // RUN: %{build} -o %t_without.out
 
 // RUN: env SYCL_UR_TRACE=1 %{run} %t_with.out 2>&1 | FileCheck %if !gpu || hip || cuda %{ --check-prefix=CHECK-WITHOUT %} %else %{ --check-prefix=CHECK-INTEL-GPU-WITH %} %s
diff --git a/sycl/test-e2e/KernelParams/struct_kernel_param.cpp b/sycl/test-e2e/KernelParams/struct_kernel_param.cpp
index f204ee0ccaa8c..bb9206b295762 100644
--- a/sycl/test-e2e/KernelParams/struct_kernel_param.cpp
+++ b/sycl/test-e2e/KernelParams/struct_kernel_param.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
 
 //==-struct_kernel_param.cpp-Checks passing structs as kernel params--------==//
diff --git a/sycl/test-e2e/LLVMIntrinsicLowering/bitreverse.cpp b/sycl/test-e2e/LLVMIntrinsicLowering/bitreverse.cpp
index c5e71243f59b7..05d171e1f8085 100644
--- a/sycl/test-e2e/LLVMIntrinsicLowering/bitreverse.cpp
+++ b/sycl/test-e2e/LLVMIntrinsicLowering/bitreverse.cpp
@@ -9,7 +9,7 @@
 // will lower llvm.bitreverse.* intrinsics instead of relying on SPIRV
 // BitReverse instruction.
 // Also build executable with SPV dump.
-// RUN: %{build} -o %t.out -O2 -Xspirv-translator --spirv-ext=-SPV_KHR_bit_instructions -fsycl-dump-device-code=%t.spvdir
+// RUN: %{build} -Wno-error=psabi -Wno-error=constant-conversion -o %t.out -O2 -Xspirv-translator --spirv-ext=-SPV_KHR_bit_instructions -fsycl-dump-device-code=%t.spvdir
 
 // Rename SPV file to explictly known filename.
 // RUN: mv %t.spvdir/*.spv %t.spvdir/dump.spv
@@ -26,7 +26,7 @@
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 // Build without lowering explicitly disabled.
-// RUN: %{build} -o %t.bitinstructions.out
+// RUN: %{build} -Wno-error=psabi -Wno-error=constant-conversion -o %t.bitinstructions.out
 
 // Execution should still be correct.
 // RUN: %{run} %t.bitinstructions.out
diff --git a/sycl/test-e2e/NewOffloadDriver/multisource.cpp b/sycl/test-e2e/NewOffloadDriver/multisource.cpp
index ec0f3ad1b4569..83223d4b68e09 100644
--- a/sycl/test-e2e/NewOffloadDriver/multisource.cpp
+++ b/sycl/test-e2e/NewOffloadDriver/multisource.cpp
@@ -10,7 +10,7 @@
 // Test with `--offload-new-driver`
 // RUN: %{build} --offload-new-driver -c -o %t.kernel.o -DINIT_KERNEL -DCALC_KERNEL
 // RUN: %{build} --offload-new-driver -c -o %t.main.o -DMAIN_APP
-// RUN: %clangxx -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t.kernel.o %t.main.o -o %t.fat
+// RUN: %clangxx -Wno-error=unused-command-line-argument -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t.kernel.o %t.main.o -o %t.fat
 // RUN: %{run} %t.fat
 
 // Multiple sources with kernel code
@@ -18,7 +18,7 @@
 // RUN: %{build} --offload-new-driver -c -o %t.init.o -DINIT_KERNEL
 // RUN: %{build} --offload-new-driver -c -o %t.calc.o -DCALC_KERNEL
 // RUN: %{build} --offload-new-driver -c -o %t.main.o -DMAIN_APP
-// RUN: %clangxx -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t.init.o %t.calc.o %t.main.o -o %t.fat
+// RUN: %clangxx -Wno-error=unused-command-line-argument -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t.init.o %t.calc.o %t.main.o -o %t.fat
 // RUN: %{run} %t.fat
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/NewOffloadDriver/split-per-source-main.cpp b/sycl/test-e2e/NewOffloadDriver/split-per-source-main.cpp
index 1996e93ad3382..a2e130fa34d1b 100644
--- a/sycl/test-e2e/NewOffloadDriver/split-per-source-main.cpp
+++ b/sycl/test-e2e/NewOffloadDriver/split-per-source-main.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_source -I %S/Inputs -o %t.out %S/Inputs/split-per-source-second-file.cpp \
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-device-code-split=per_source -I %S/Inputs -o %t.out %S/Inputs/split-per-source-second-file.cpp \
 // RUN: --offload-new-driver -fsycl-dead-args-optimization
 // RUN: %{run} %t.out
 //
diff --git a/sycl/test-e2e/NewOffloadDriver/sycl-external-with-optional-features.cpp b/sycl/test-e2e/NewOffloadDriver/sycl-external-with-optional-features.cpp
index 38268ad5efb6f..d1e8ef20a9a70 100644
--- a/sycl/test-e2e/NewOffloadDriver/sycl-external-with-optional-features.cpp
+++ b/sycl/test-e2e/NewOffloadDriver/sycl-external-with-optional-features.cpp
@@ -1,7 +1,7 @@
 // Test with `--offload-new-driver`
 // RUN: %{build} -DSOURCE1 --offload-new-driver -c -o %t1.o
 // RUN: %{build} -DSOURCE2 --offload-new-driver -c -o %t2.o
-// RUN: %clangxx -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t1.o %t2.o -o %t.exe
+// RUN: %clangxx -Wno-error=unused-command-line-argument -fsycl -fsycl-targets=%{sycl_triple} --offload-new-driver %t1.o %t2.o -o %t.exe
 // RUN: %{run} %t.exe
 
 #ifdef SOURCE1
diff --git a/sycl/test-e2e/OnlineCompiler/online_compiler_L0.cpp b/sycl/test-e2e/OnlineCompiler/online_compiler_L0.cpp
index 58fe10e30ea69..fc92d8957ef31 100644
--- a/sycl/test-e2e/OnlineCompiler/online_compiler_L0.cpp
+++ b/sycl/test-e2e/OnlineCompiler/online_compiler_L0.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: level_zero, level_zero_dev_kit, cm-compiler
 
-// RUN: %{build} -DRUN_KERNELS %level_zero_options -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -DRUN_KERNELS %level_zero_options -o %t.out
 // RUN: %{run} %t.out
 
 // This test checks ext::intel feature class online_compiler for Level-Zero.
diff --git a/sycl/test-e2e/OnlineCompiler/online_compiler_OpenCL.cpp b/sycl/test-e2e/OnlineCompiler/online_compiler_OpenCL.cpp
index 57cd957d3a1df..8a0d67d3b02c3 100644
--- a/sycl/test-e2e/OnlineCompiler/online_compiler_OpenCL.cpp
+++ b/sycl/test-e2e/OnlineCompiler/online_compiler_OpenCL.cpp
@@ -1,7 +1,7 @@
 // REQUIRES: opencl, opencl_icd, cm-compiler
 // UNSUPPORTED: accelerator
 
-// RUN: %{build} -DRUN_KERNELS %opencl_lib -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -DRUN_KERNELS %opencl_lib -o %t.out
 // RUN: %{run} %t.out
 
 // This test checks ext::intel feature class online_compiler for OpenCL.
diff --git a/sycl/test-e2e/OptionalKernelFeatures/is_compatible/is_compatible_with_aspects.cpp b/sycl/test-e2e/OptionalKernelFeatures/is_compatible/is_compatible_with_aspects.cpp
index 535c3647793c7..68a8c19f1de0a 100644
--- a/sycl/test-e2e/OptionalKernelFeatures/is_compatible/is_compatible_with_aspects.cpp
+++ b/sycl/test-e2e/OptionalKernelFeatures/is_compatible/is_compatible_with_aspects.cpp
@@ -1,7 +1,7 @@
 // requires: cpu, gpu, accelerator
 // UNSUPPORTED: hip
 // FIXME: enable the test back, see intel/llvm#8146
-// RUN: %{build} -O0 -o %t.out
+// RUN: %{build} -Wno-error=incorrect-sub-group-size -O0 -o %t.out
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/Plugin/enqueue-arg-order-buffer.cpp b/sycl/test-e2e/Plugin/enqueue-arg-order-buffer.cpp
index 2a7d0db62df94..387b72fb2dbb8 100644
--- a/sycl/test-e2e/Plugin/enqueue-arg-order-buffer.cpp
+++ b/sycl/test-e2e/Plugin/enqueue-arg-order-buffer.cpp
@@ -1,5 +1,5 @@
 // UNSUPPORTED: hip_nvidia
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: env SYCL_UR_TRACE=1 %{run} %t.out | FileCheck %s
 
 #include <iostream>
diff --git a/sycl/test-e2e/Plugin/interop-level-zero-buffer.cpp b/sycl/test-e2e/Plugin/interop-level-zero-buffer.cpp
index 9f097992de68d..9ec7f00a10819 100644
--- a/sycl/test-e2e/Plugin/interop-level-zero-buffer.cpp
+++ b/sycl/test-e2e/Plugin/interop-level-zero-buffer.cpp
@@ -2,7 +2,7 @@
 // L0 plugin incorrectly reports memory leaks because it doesn't take into
 // account direct calls to L0 API.
 // UNSUPPORTED: ze_debug
-// RUN: %{build} %level_zero_options -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations %level_zero_options -o %t.out
 // RUN: env UR_L0_DEBUG=1 %{run} %t.out
 
 // Test interoperability buffer for the Level Zer backend
diff --git a/sycl/test-e2e/Plugin/interop-level-zero-thread.cpp b/sycl/test-e2e/Plugin/interop-level-zero-thread.cpp
index 334567e5ca59c..129d43dc3ceb1 100644
--- a/sycl/test-e2e/Plugin/interop-level-zero-thread.cpp
+++ b/sycl/test-e2e/Plugin/interop-level-zero-thread.cpp
@@ -1,5 +1,5 @@
 // REQUIRES: level_zero, level_zero_dev_kit
-// RUN: %{build} -o %t.out %level_zero_options %threads_lib
+// RUN: %{build} -Wno-error=deprecated-declarations -Wno-error=#warnings -o %t.out %level_zero_options %threads_lib
 // RUN: %{run} %t.out
 //
 // CHECK: Running iteration 0
diff --git a/sycl/test-e2e/Plugin/level_zero_eager_init.cpp b/sycl/test-e2e/Plugin/level_zero_eager_init.cpp
index bb672ea6eea72..3d51e754f1489 100644
--- a/sycl/test-e2e/Plugin/level_zero_eager_init.cpp
+++ b/sycl/test-e2e/Plugin/level_zero_eager_init.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: level_zero, level_zero_dev_kit
 
-// RUN: %{build} %level_zero_options -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations %level_zero_options -o %t.out
 // RUN: env UR_L0_DEBUG=1 SYCL_EAGER_INIT=1 %{run} %t.out 2>&1 | FileCheck %s
 //
 // The test is to check that under SYCL_EAGER_INIT=1 there is no calls to
diff --git a/sycl/test-e2e/Plugin/level_zero_ext_intel_cslice.cpp b/sycl/test-e2e/Plugin/level_zero_ext_intel_cslice.cpp
index 89d366bf404d3..f49f5a44ea5ff 100644
--- a/sycl/test-e2e/Plugin/level_zero_ext_intel_cslice.cpp
+++ b/sycl/test-e2e/Plugin/level_zero_ext_intel_cslice.cpp
@@ -2,7 +2,7 @@
 // REQUIRES: aspect-ext_intel_device_id
 // UNSUPPORTED: gpu-intel-pvc-1T
 
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 
 // TODO: at this time PVC 1T systems are not correctly supporting CSLICE
 // affinity partitioning So the test is marked as UNSUPPORTED until that is
diff --git a/sycl/test-e2e/PreviewBreakingChanges/preview_lib_marker.cpp b/sycl/test-e2e/PreviewBreakingChanges/preview_lib_marker.cpp
index 7a14c4067b898..ff5510ac46fd5 100644
--- a/sycl/test-e2e/PreviewBreakingChanges/preview_lib_marker.cpp
+++ b/sycl/test-e2e/PreviewBreakingChanges/preview_lib_marker.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: preview-breaking-changes-supported
 
-// RUN: %clangxx -fsycl -fpreview-breaking-changes %s -o %t.out
+// RUN: %clangxx -fsycl -fpreview-breaking-changes %s -Wno-error=unused-command-line-argument -o %t.out
 // RUN: %{run} %t.out
 
 // Test to help identify that E2E testing correctly detects and uses the preview
diff --git a/sycl/test-e2e/Regression/check_vector_of_opencl_event.cpp b/sycl/test-e2e/Regression/check_vector_of_opencl_event.cpp
index 5dd574dc5f6d8..4691523fb36c3 100644
--- a/sycl/test-e2e/Regression/check_vector_of_opencl_event.cpp
+++ b/sycl/test-e2e/Regression/check_vector_of_opencl_event.cpp
@@ -17,7 +17,8 @@ int main() {
     cgh.single_task<class event_kernel>([]() {});
   });
   // Check that get_native function returns a vector
-  std::vector<cl_event> ClEventVec = get_native<sycl::backend::opencl>(event);
+  std::vector<cl_event> ClEventVec =
+      sycl::get_native<sycl::backend::opencl>(event);
   // Check that make_event is working properly with vector<cl_event> as a
   // param
   sycl::event SyclEvent =
diff --git a/sycl/test-e2e/Regression/commandlist/gpu.cpp b/sycl/test-e2e/Regression/commandlist/gpu.cpp
index 1fd677f9b5274..a2133a62a1318 100644
--- a/sycl/test-e2e/Regression/commandlist/gpu.cpp
+++ b/sycl/test-e2e/Regression/commandlist/gpu.cpp
@@ -2,5 +2,5 @@
 
 // UNSUPPORTED: ze_debug
 
-// RUN: %clangxx -fsycl -fsycl-targets=%{sycl_triple} %S/Inputs/FindPrimesSYCL.cpp %S/Inputs/main.cpp -o %t.out -lpthread
+// RUN: %clangxx -Wno-error=vla-cxx-extension -fsycl -fsycl-targets=%{sycl_triple} %S/Inputs/FindPrimesSYCL.cpp %S/Inputs/main.cpp -o %t.out -lpthread
 // RUN: %{run} %t.out
diff --git a/sycl/test-e2e/Regression/get_subgroup_sizes.cpp b/sycl/test-e2e/Regression/get_subgroup_sizes.cpp
index 38a07ce20ef79..f076d18494244 100644
--- a/sycl/test-e2e/Regression/get_subgroup_sizes.cpp
+++ b/sycl/test-e2e/Regression/get_subgroup_sizes.cpp
@@ -4,7 +4,7 @@
 // UNSUPPORTED: cuda || hip
 // TODO: Similar issue to FPGAs
 
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
 
 //==-- get_subgroup_sizes.cpp - Test for bug fix in subgroup sizes query --==//
diff --git a/sycl/test-e2e/Regression/implicit_atomic_conversion.cpp b/sycl/test-e2e/Regression/implicit_atomic_conversion.cpp
index ee89b993eedce..8adfc00d37048 100644
--- a/sycl/test-e2e/Regression/implicit_atomic_conversion.cpp
+++ b/sycl/test-e2e/Regression/implicit_atomic_conversion.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/Regression/mad_sat.cpp b/sycl/test-e2e/Regression/mad_sat.cpp
index d2a7254f2bd60..401a2644d1743 100644
--- a/sycl/test-e2e/Regression/mad_sat.cpp
+++ b/sycl/test-e2e/Regression/mad_sat.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=integer-overflow -Wno-error=implicitly-unsigned-literal -o %t.out
 // RUNx: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/Regression/range-rounding-this-id.cpp b/sycl/test-e2e/Regression/range-rounding-this-id.cpp
index b383929867948..f6976687d36ce 100644
--- a/sycl/test-e2e/Regression/range-rounding-this-id.cpp
+++ b/sycl/test-e2e/Regression/range-rounding-this-id.cpp
@@ -1,6 +1,6 @@
 // This test ensures that this_id returns the correct value
 // even when a kernel is wrapped in a range rounding kernel.
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: env SYCL_PARALLEL_FOR_RANGE_ROUNDING_PARAMS=16:32:0 \
 // RUN:     SYCL_PARALLEL_FOR_RANGE_ROUNDING_TRACE=1 \
 // RUN: %{run} %t.out | FileCheck %s
diff --git a/sycl/test-e2e/Scheduler/HostAccDestruction.cpp b/sycl/test-e2e/Scheduler/HostAccDestruction.cpp
index 99d93bd85bf52..fb41c8f715e29 100644
--- a/sycl/test-e2e/Scheduler/HostAccDestruction.cpp
+++ b/sycl/test-e2e/Scheduler/HostAccDestruction.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-dead-args-optimization -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -o %t.out
 // RUN: env SYCL_UR_TRACE=1 %{run} %t.out 2>&1 | FileCheck %s
 
 // Windows doesn't yet have full shutdown().
diff --git a/sycl/test-e2e/Scheduler/MemObjRemapping.cpp b/sycl/test-e2e/Scheduler/MemObjRemapping.cpp
index 0b681149c2999..54ab8ebd8e1d0 100644
--- a/sycl/test-e2e/Scheduler/MemObjRemapping.cpp
+++ b/sycl/test-e2e/Scheduler/MemObjRemapping.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: env SYCL_HOST_UNIFIED_MEMORY=1 SYCL_UR_TRACE=1 %{run} %t.out 2>&1 | FileCheck %s
 //
 // XFAIL: hip_nvidia
diff --git a/sycl/test-e2e/Scheduler/ReleaseResourcesTest.cpp b/sycl/test-e2e/Scheduler/ReleaseResourcesTest.cpp
index ba6b91f5acc1b..c7ca4dde5e5bd 100644
--- a/sycl/test-e2e/Scheduler/ReleaseResourcesTest.cpp
+++ b/sycl/test-e2e/Scheduler/ReleaseResourcesTest.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-dead-args-optimization -o %t.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -o %t.out
 // RUN: env SYCL_UR_TRACE=1 %{run} %t.out 2>&1 | FileCheck %s
 //
 // TODO: Reenable on Windows, see https://github.com/intel/llvm/issues/14768
diff --git a/sycl/test-e2e/SeparateCompile/test.cpp b/sycl/test-e2e/SeparateCompile/test.cpp
index 5c7c34c204cec..27e165865fd37 100644
--- a/sycl/test-e2e/SeparateCompile/test.cpp
+++ b/sycl/test-e2e/SeparateCompile/test.cpp
@@ -8,13 +8,13 @@
 // >> device compilation...
 // RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT -fno-sycl-dead-args-optimization -fsycl-device-only -Xclang -fsycl-int-header=sycl_ihdr_a.h %s -c -o a_kernel.bc -Wno-sycl-strict
 // >> host compilation...
-// RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 %include_option sycl_ihdr_a.h %debug_option -c %s -o a.o %sycl_options -fno-sycl-dead-args-optimization -Wno-sycl-strict
+// RUN: %clangxx -Wno-error=ignored-attributes -Wno-error=unused-command-line-argument -DSYCL_DISABLE_FALLBACK_ASSERT %cxx_std_optionc++17 %include_option sycl_ihdr_a.h %debug_option -c %s -o a.o %sycl_options -fno-sycl-dead-args-optimization -Wno-sycl-strict
 //
 // >> ---- compile src2
 // >> device compilation...
-// RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT -DB_CPP=1 -fno-sycl-dead-args-optimization -fsycl-device-only -Xclang -fsycl-int-header=sycl_ihdr_b.h %s -c -o b_kernel.bc -Wno-sycl-strict
+// RUN: %clangxx -Wno-error=unused-command-line-argument -DSYCL_DISABLE_FALLBACK_ASSERT -DB_CPP=1 -fno-sycl-dead-args-optimization -fsycl-device-only -Xclang -fsycl-int-header=sycl_ihdr_b.h %s -c -o b_kernel.bc -Wno-sycl-strict
 // >> host compilation...
-// RUN: %clangxx -DSYCL_DISABLE_FALLBACK_ASSERT -DB_CPP=1 %cxx_std_optionc++17 %include_option sycl_ihdr_b.h %debug_option -c %s -o b.o %sycl_options -fno-sycl-dead-args-optimization -Wno-sycl-strict
+// RUN: %clangxx -Wno-error=ignored-attributes -Wno-error=unused-command-line-argument -DSYCL_DISABLE_FALLBACK_ASSERT -DB_CPP=1 %cxx_std_optionc++17 %include_option sycl_ihdr_b.h %debug_option -c %s -o b.o %sycl_options -fno-sycl-dead-args-optimization -Wno-sycl-strict
 //
 // >> ---- bundle .o with .spv
 // >> run bundler
@@ -48,7 +48,7 @@
 // RUN: clang-offload-wrapper -o wrapper.bc -host=x86_64 -kind=sycl -target=spir64 -batch test_spv.table
 //
 // >> compile .bc to .o
-// RUN: %clangxx -c wrapper.bc -o wrapper.o
+// RUN: %clangxx -Wno-error=override-module -c wrapper.bc -o wrapper.o
 //
 // >> ---- link the full hetero app
 // RUN: %clangxx wrapper.o a.o b.o -o app.exe %sycl_options
diff --git a/sycl/test-e2e/SpecConstants/2020/handler-api.cpp b/sycl/test-e2e/SpecConstants/2020/handler-api.cpp
index ff5e586e35651..e08815ca5d9f5 100644
--- a/sycl/test-e2e/SpecConstants/2020/handler-api.cpp
+++ b/sycl/test-e2e/SpecConstants/2020/handler-api.cpp
@@ -7,7 +7,7 @@
 // - test that specialization constant values can be set within command group
 //   scope and correctly retrieved within a kernel
 
-// RUN: %{build} -o %t.out -fsycl-dead-args-optimization
+// RUN: %{build} -Wno-error=unused-command-line-argument -o %t.out -fsycl-dead-args-optimization
 // RUN: %{run} %t.out
 
 // FIXME: ACC devices use emulation path, which is not yet supported
diff --git a/sycl/test-e2e/SpecConstants/2020/host_apis.cpp b/sycl/test-e2e/SpecConstants/2020/host_apis.cpp
index 09820442bfced..fddc661f3f4d8 100644
--- a/sycl/test-e2e/SpecConstants/2020/host_apis.cpp
+++ b/sycl/test-e2e/SpecConstants/2020/host_apis.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -o %t.out -fsycl-dead-args-optimization
+// RUN: %{build} -Wno-error=unused-command-line-argument -o %t.out -fsycl-dead-args-optimization
 // RUN: %{run} %t.out
 
 #include <sycl/detail/core.hpp>
diff --git a/sycl/test-e2e/SubGroup/barrier.cpp b/sycl/test-e2e/SubGroup/barrier.cpp
index facdbd0c1a456..b346e7f246e41 100644
--- a/sycl/test-e2e/SubGroup/barrier.cpp
+++ b/sycl/test-e2e/SubGroup/barrier.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -o %t.out
 // RUN: %{run} %t.out
 
 //==---------- barrier.cpp - SYCL sub_group barrier test -------*- C++ -*---==//
diff --git a/sycl/test-e2e/SubGroup/load_store.cpp b/sycl/test-e2e/SubGroup/load_store.cpp
index 61014d152fcbe..ceeb40c9ec0aa 100644
--- a/sycl/test-e2e/SubGroup/load_store.cpp
+++ b/sycl/test-e2e/SubGroup/load_store.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fsycl-device-code-split=per_kernel -o %t.out
 // RUN: %{run} %t.out
 //
 // TODO: Flaky reenable, see https://github.com/intel/llvm/issues/14765
diff --git a/sycl/test-e2e/SubGroupMask/GroupSize.cpp b/sycl/test-e2e/SubGroupMask/GroupSize.cpp
index 024205f264500..84d13c3ff7603 100644
--- a/sycl/test-e2e/SubGroupMask/GroupSize.cpp
+++ b/sycl/test-e2e/SubGroupMask/GroupSize.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out
+// RUN: %{build} -Wno-error=incorrect-sub-group-size -fsycl-device-code-split=per_kernel -o %t.out
 
 // REQUIRES: gpu
 
diff --git a/sycl/test-e2e/USM/pfor_flatten.cpp b/sycl/test-e2e/USM/pfor_flatten.cpp
index b2cc58713f775..0af26abb2b92d 100644
--- a/sycl/test-e2e/USM/pfor_flatten.cpp
+++ b/sycl/test-e2e/USM/pfor_flatten.cpp
@@ -1,4 +1,4 @@
-// RUN: %{build} -fsycl-dead-args-optimization -o %t1.out
+// RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-dead-args-optimization -o %t1.out
 // RUN: %{run} %t1.out
 
 //==--------------- pfor_flatten.cpp - Kernel Launch Flattening test -------==//
diff --git a/sycl/test-e2e/USM/usm_leak_check.cpp b/sycl/test-e2e/USM/usm_leak_check.cpp
index c4ade6a7619c2..8787512de7b9f 100644
--- a/sycl/test-e2e/USM/usm_leak_check.cpp
+++ b/sycl/test-e2e/USM/usm_leak_check.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: level_zero
 
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 
 // RUN: %{l0_leak_check} %{run} %t.out u 2>&1 | FileCheck %s --implicit-check-not=LEAK
 // RUN: %{l0_leak_check} %{run} %t.out s 2>&1 | FileCheck %s --implicit-check-not=LEAK
diff --git a/sycl/test-e2e/WeakObject/lit.local.cfg b/sycl/test-e2e/WeakObject/lit.local.cfg
new file mode 100644
index 0000000000000..3d15db684c3a1
--- /dev/null
+++ b/sycl/test-e2e/WeakObject/lit.local.cfg
@@ -0,0 +1,7 @@
+# TODO: Remove this once the warnings are resolved
+original_clangxx=""
+for substitution in config.substitutions:
+  if substitution[0] == "%clangxx":
+    original_clangxx=substitution[1]
+config.substitutions.insert(0,
+  ("%clangxx", original_clangxx+" -Wno-error=deprecated-declarations"))
diff --git a/sycl/test-e2e/XPTI/buffer/accessors.cpp b/sycl/test-e2e/XPTI/buffer/accessors.cpp
index 65f1b62d6b2b5..bbad451a06a15 100644
--- a/sycl/test-e2e/XPTI/buffer/accessors.cpp
+++ b/sycl/test-e2e/XPTI/buffer/accessors.cpp
@@ -1,6 +1,6 @@
 // REQUIRES: xptifw, opencl
 // RUN: %clangxx %s -DXPTI_COLLECTOR -DXPTI_CALLBACK_API_EXPORTS %xptifw_lib %shared_lib %fPIC %cxx_std_optionc++17 -o %t_collector.dll
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=deprecated-declarations -o %t.out
 // RUN: env XPTI_TRACE_ENABLE=1 XPTI_FRAMEWORK_DISPATCHER=%xptifw_dispatcher XPTI_SUBSCRIBERS=%t_collector.dll %{run} %t.out | FileCheck %s
 
 #ifdef XPTI_COLLECTOR
diff --git a/sycl/test-e2e/XPTI/kernel/content.cpp b/sycl/test-e2e/XPTI/kernel/content.cpp
index 548c9f20b322c..0e68788100a2a 100644
--- a/sycl/test-e2e/XPTI/kernel/content.cpp
+++ b/sycl/test-e2e/XPTI/kernel/content.cpp
@@ -1,8 +1,8 @@
 // REQUIRES: xptifw, opencl
 // RUN: %clangxx %s -DXPTI_COLLECTOR -DXPTI_CALLBACK_API_EXPORTS %xptifw_lib %shared_lib %fPIC %cxx_std_optionc++17 -o %t_collector.dll
-// RUN: %{build} -O2 -o %t.opt.out
+// RUN: %{build} -Wno-error=deprecated-declarations -O2 -o %t.opt.out
 // RUN: env XPTI_TRACE_ENABLE=1 XPTI_FRAMEWORK_DISPATCHER=%xptifw_dispatcher XPTI_SUBSCRIBERS=%t_collector.dll %{run} %t.opt.out | FileCheck %s --check-prefix=CHECK-OPT
-// RUN: %{build} -fno-sycl-dead-args-optimization -o %t.noopt.out
+// RUN: %{build} -Wno-error=deprecated-declarations -fno-sycl-dead-args-optimization -o %t.noopt.out
 // RUN: env XPTI_TRACE_ENABLE=1 XPTI_FRAMEWORK_DISPATCHER=%xptifw_dispatcher XPTI_SUBSCRIBERS=%t_collector.dll %{run} %t.noopt.out | FileCheck %s --check-prefix=CHECK-NOOPT
 
 #ifdef XPTI_COLLECTOR
diff --git a/sycl/test-e2e/helpers.hpp b/sycl/test-e2e/helpers.hpp
index 71cf891c5fb97..6b7434f4c7a9d 100644
--- a/sycl/test-e2e/helpers.hpp
+++ b/sycl/test-e2e/helpers.hpp
@@ -35,7 +35,7 @@ class VecPrinter {
     printHelper<Idx + 1>(Out, Elem1);
   }
   template <>
-  static void printHelper<EndIdx>(std::ostream &Out, const VecT &Elem1) {}
+  inline void printHelper<EndIdx>(std::ostream &Out, const VecT &Elem1) {}
 
   VecT MVec;
 };
diff --git a/sycl/test-e2e/syclcompat/device/device.cpp b/sycl/test-e2e/syclcompat/device/device.cpp
index 180db72afc9f8..98ac69fa513e2 100644
--- a/sycl/test-e2e/syclcompat/device/device.cpp
+++ b/sycl/test-e2e/syclcompat/device/device.cpp
@@ -29,7 +29,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// RUN: %{build} -o %t.out
+// RUN: %{build} -Wno-error=user-defined-warnings -o %t.out
 // RUN: %{run} %t.out
 
 #include <syclcompat/device.hpp>
diff --git a/sycl/test-e2e/syclcompat/lit.local.cfg b/sycl/test-e2e/syclcompat/lit.local.cfg
new file mode 100644
index 0000000000000..621766a7c01f1
--- /dev/null
+++ b/sycl/test-e2e/syclcompat/lit.local.cfg
@@ -0,0 +1,7 @@
+# TODO: Remove this once the warnings are resolved
+original_clangxx=""
+for substitution in config.substitutions:
+  if substitution[0] == "%clangxx":
+    original_clangxx=substitution[1]
+config.substitutions.insert(0,
+  ("%clangxx", original_clangxx + ' -Wno-error=c++20-extensions -Wno-error=#warnings -Wno-error=deprecated-declarations'))