Fix sycl-post-link options

Author: Fznamznon

clang/lib/Driver/Driver.cpp

@@ -3514,6 +3514,9 @@ class OffloadingActionBuilder final {
     /// Flag to signal if the user requested device code split.
     bool DeviceCodeSplit = false;
 
+    /// Flag to signal if DAE optimization is turned on.
+    bool EnableDAE = false;
+
     /// The SYCL actions for the current input.
     ActionList SYCLDeviceActions;
 
@@ -3951,7 +3954,7 @@ class OffloadingActionBuilder final {
         ActionList WrapperInputs;
         // post link is not optional - even if not splitting, always need to
         // process specialization constants
-        bool MultiFileActionDeps = !isSpirvAOT || DeviceCodeSplit;
+        bool MultiFileActionDeps = !isSpirvAOT || DeviceCodeSplit || EnableDAE;
         types::ID PostLinkOutType = isNVPTX || !MultiFileActionDeps
                                         ? types::TY_LLVM_BC
                                         : types::TY_Tempfiletable;
@@ -4108,6 +4111,9 @@ class OffloadingActionBuilder final {
       WrapDeviceOnlyBinary = Args.hasArg(options::OPT_fsycl_link_EQ);
       auto *DeviceCodeSplitArg =
           Args.getLastArg(options::OPT_fsycl_device_code_split_EQ);
+      EnableDAE =
+          Args.hasFlag(options::OPT_fsycl_early_optimizations,
+                       options::OPT_fno_sycl_early_optimizations, true);
       // -fsycl-device-code-split is an alias to
       // -fsycl-device-code-split=per_source
       DeviceCodeSplit = DeviceCodeSplitArg &&