[SYCLomatic] Fix tool abort when __launch_bounds__ uses maxBlocksPerCluster (#2828)

Signed-off-by: Jiang, Zhiwei <zhiwei.jiang@intel.com>

Author: zhiweij1

clang/lib/Sema/SemaDeclAttr.cpp

@@ -5464,10 +5464,16 @@ Sema::CreateLaunchBoundsAttr(const AttributeCommonInfo &CI, Expr *MaxThreads,
 
   if (MaxBlocks) {
     // '.maxclusterrank' ptx directive requires .target sm_90 or higher.
+#ifdef SYCLomatic_CUSTOMIZATION
+    auto SM = OffloadArch::UNKNOWN;
+#else
     auto SM = SYCL().getOffloadArch(Context.getTargetInfo());
+#endif // SYCLomatic_CUSTOMIZATION
     if (SM == OffloadArch::UNKNOWN || SM < OffloadArch::SM_90) {
+#ifndef SYCLomatic_CUSTOMIZATION
       Diag(MaxBlocks->getBeginLoc(), diag::warn_cuda_maxclusterrank_sm_90)
           << OffloadArchToString(SM) << CI << MaxBlocks->getSourceRange();
+#endif // SYCLomatic_CUSTOMIZATION
       // Ignore it by setting MaxBlocks to null;
       MaxBlocks = nullptr;
     } else {

clang/test/dpct/launch_bounds.cu

@@ -0,0 +1,5 @@
+// RUN: dpct --format-range=none --out-root %T/launch_bounds %s --cuda-include-path="%cuda-path/include"
+// RUN: FileCheck %s --match-full-lines --input-file %T/launch_bounds/launch_bounds.dp.cpp
+
+// CHECK: void foo() {}
+__global__ void __launch_bounds__(32, 1, 1) foo() {}