[SYCL][ROCm] Fix compilation for AMD GPU with -fsycl-dead-args-optimization (#4126)

Prevents -emit-param-info being added if on AMD GPU

Author: AidanBeltonS

clang/lib/Driver/ToolChains/Clang.cpp

@@ -4624,7 +4624,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     }
 
     // Turn on Dead Parameter Elimination Optimization with early optimizations
-    if (!RawTriple.isNVPTX() &&
+    if (!(RawTriple.isNVPTX() || RawTriple.isAMDGCN()) &&
         Args.hasFlag(options::OPT_fsycl_dead_args_optimization,
                      options::OPT_fno_sycl_dead_args_optimization, false))
       CmdArgs.push_back("-fenable-sycl-dae");
@@ -8856,7 +8856,8 @@ void SYCLPostLink::ConstructJob(Compilation &C, const JobAction &JA,
   // -fsycl-device-code-split=auto
 
   // Turn on Dead Parameter Elimination Optimization with early optimizations
-  if (!getToolChain().getTriple().isNVPTX() &&
+  if (!(getToolChain().getTriple().isNVPTX() ||
+        getToolChain().getTriple().isAMDGCN()) &&
       TCArgs.hasFlag(options::OPT_fsycl_dead_args_optimization,
                      options::OPT_fno_sycl_dead_args_optimization, false))
     addArgs(CmdArgs, TCArgs, {"-emit-param-info"});

clang/test/Driver/sycl-triple-dae-flags.cpp

@@ -0,0 +1,12 @@
+// RUN: %clangxx -### -fsycl -fsycl-targets=nvptx64-nvidia-cuda-sycldevice -fsycl-dead-args-optimization %s 2> %t.cuda.out
+// RUN: FileCheck %s --input-file %t.cuda.out
+//
+// RUN: %clangxx -### -fsycl -fsycl-targets=amdgcn-amd-amdhsa-sycldevice -fsycl-dead-args-optimization %s 2> %t.rocm.out
+// RUN: FileCheck %s --input-file %t.rocm.out
+// CHECK-NOT: -fenable-sycl-dae
+// CHECK-NOT: -emit-param-info
+//
+// RUN: %clangxx -### -fsycl -fsycl-targets=spir64-unknown-unknown-sycldevice -fsycl-dead-args-optimization %s 2> %t.out
+// RUN: FileCheck %s --check-prefixes=CHECK-FENABLE,CHECK-EMIT --input-file %t.out
+// CHECK-FENABLE: -fenable-sycl-dae
+// CHECK-EMIT: -emit-param-info