Add fno-sycl-device-lib-online-link

Signed-off-by: jinge90 <[email protected]>

Author: jinge90

clang/include/clang/Driver/Options.td

@@ -4855,8 +4855,11 @@ def fno_sycl_device_lib_EQ : CommaJoined<["-"], "fno-sycl-device-lib=">, Group<s
   "device libraries from device binary linkage. Valid arguments "
   "are libc, libm-fp32, libm-fp64, all">;
 def fsycl_device_lib_online_link : Flag<["-"], "fsycl-device-lib-online-link">,
-  Group<sycl_Group>, Flags<[NoXarchOption, CoreOption]>, HelpText<"Use online "
-  "link mode for SYCL device libraries.">;
+  Group<sycl_Group>, Flags<[NoArgumentUnused, CoreOption]>, HelpText<"Enables "
+  "sycl device library online link">;
+def fno_sycl_device_lib_online_link : Flag<["-"], "fno-sycl-device-lib-online-link">,
+  Group<sycl_Group>, Flags<[NoArgumentUnused, CoreOption]>, HelpText<"Disables "
+  "sycl device library online link">;
 def fsycl_fp32_prec_sqrt : Flag<["-"], "fsycl-fp32-prec-sqrt">, Group<sycl_Group>, Flags<[CC1Option]>,
   HelpText<"SYCL only. Specify that single precision floating-point sqrt is correctly rounded.">,
   MarshallingInfoFlag<CodeGenOpts<"SYCLFp32PrecSqrt">>;

clang/lib/Driver/Driver.cpp

@@ -4958,9 +4958,9 @@ class OffloadingActionBuilder final {
         // device libraries are only needed when current toolchain is using
         // AOT compilation.
         if (isSPIR) {
-
           bool UseOnlineLink =
-              Args.hasArg(options::OPT_fsycl_device_lib_online_link);
+              Args.hasFlag(options::OPT_fsycl_device_lib_online_link,
+                           options::OPT_fno_sycl_device_lib_online_link, false);
           bool UseOfflineLink = isSpirvAOT || !UseOnlineLink;
           SYCLDeviceLibLinked = addSYCLDeviceLibs(
               TC, FullLinkObjects, UseOfflineLink,

clang/test/Driver/sycl-device-lib-win.cpp

@@ -6,11 +6,15 @@
 
 /// ###########################################################################
 
-/// test behavior of device library default link
+/// test behavior of device library default link and fno-sycl-device-lib-online-link
 // RUN: %clangxx -fsycl %s --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
+// RUN: %clangxx -fsycl -fno-sycl-device-lib-online-link %s --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libc --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
+// RUN: %clangxx -fsycl -fno-sycl-device-lib-online-link %s -fsycl-device-lib=libc --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libm-fp32 --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libc,libm-fp32 --sysroot=%S/Inputs/SYCL-windows -### 2>&1 \

clang/test/Driver/sycl-device-lib.cpp

@@ -6,11 +6,15 @@
 
 /// ###########################################################################
 
-/// test behavior of device library default link
+/// test behavior of device library default link and fno-sycl-device-lib-online-link
 // RUN: %clangxx -fsycl %s --sysroot=%S/Inputs/SYCL -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
+// RUN: %clangxx -fsycl -fno-sycl-device-lib-online-link %s --sysroot=%S/Inputs/SYCL -### 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libc --sysroot=%S/Inputs/SYCL -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
+// RUN: %clangxx -fsycl -fno-sycl-device-lib-online-link %s -fsycl-device-lib=libc --sysroot=%S/Inputs/SYCL -### 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libm-fp32 --sysroot=%S/Inputs/SYCL -### 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=SYCL_DEVICE_LIB_UNBUNDLE_DEFAULT
 // RUN: %clangxx -fsycl %s -fsycl-device-lib=libc,libm-fp32 --sysroot=%S/Inputs/SYCL -### 2>&1 \