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[SYCL][NewOffloadModel] Enforce default SYCL device library to use old offloading model #20569

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Merged
merged 3 commits into from
Nov 6, 2025
Merged

[SYCL][NewOffloadModel] Enforce default SYCL device library to use old offloading model #20569

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7760f2c
update the SYCLLibdevice.cmake such that the name.o device library is…
YixingZhang007 Nov 5, 2025
d401d79
add the changes for enabling new offloading model by default; these c…
YixingZhang007 Nov 5, 2025
4edcedb
revert the changes for enabling new offloading model by default
YixingZhang007 Nov 6, 2025
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10 changes: 5 additions & 5 deletions libdevice/cmake/modules/SYCLLibdevice.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,7 @@ set(spv_device_compile_opts -fsycl-device-only -fsycl-device-obj=spirv)
set(bc_device_compile_opts -fsycl-device-only -fsycl-device-obj=llvmir)
set(obj-new-offload_device_compile_opts -fsycl -c --offload-new-driver
-foffload-lto=thin ${sycl_targets_opt})
set(obj_device_compile_opts -fsycl -c ${sycl_targets_opt})
set(obj_device_compile_opts -fsycl -c ${sycl_targets_opt} --no-offload-new-driver)

# Compiles and installs a single device library.
#
Expand Down Expand Up @@ -364,17 +364,17 @@ if (NOT MSVC AND UR_SANITIZER_INCLUDE_DIR)
-I${UR_SANITIZER_INCLUDE_DIR}
-I${CMAKE_CURRENT_SOURCE_DIR})

set(sanitizer_pvc_compile_opts_obj -fsycl -c
set(sanitizer_pvc_compile_opts_obj -fsycl -c --no-offload-new-driver
${sanitizer_generic_compile_opts}
${sycl_pvc_target_opt}
-D__LIBDEVICE_PVC__)

set(sanitizer_cpu_compile_opts_obj -fsycl -c
set(sanitizer_cpu_compile_opts_obj -fsycl -c --no-offload-new-driver
${sanitizer_generic_compile_opts}
${sycl_cpu_target_opt}
-D__LIBDEVICE_CPU__)

set(sanitizer_dg2_compile_opts_obj -fsycl -c
set(sanitizer_dg2_compile_opts_obj -fsycl -c --no-offload-new-driver
${sanitizer_generic_compile_opts}
${sycl_dg2_target_opt}
-D__LIBDEVICE_DG2__)
Expand Down Expand Up @@ -706,7 +706,7 @@ endif()

set(obj-new-offload_host_compile_opts ${imf_host_cxx_flags} --offload-new-driver
-foffload-lto=thin)
set(obj_host_compile_opts ${imf_host_cxx_flags})
set(obj_host_compile_opts ${imf_host_cxx_flags} --no-offload-new-driver)

foreach(datatype IN ITEMS fp32 fp64 bf16)
string(TOUPPER ${datatype} upper_datatype)
Expand Down
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