Add test for special aoc return code

Author: mdtoguchi

clang/test/Driver/Inputs/SYCL/aoc

@@ -0,0 +1,22 @@
+#!/bin/sh
+## Simple aoc replacement script that returns '42' that is used to test
+## special return code processing for FPGA AOT.
+
+while [[ $# -gt 0 ]] ; do
+  opt="$1"
+  case $opt in
+    -o)
+      shift
+      OUTFILE=$1
+      ;;
+    *)
+      shift
+      ;;
+  esac
+done
+
+if [ "$OUTFILE" != "" ] ; then
+  echo "dummy file contents" > $OUTFILE
+fi
+
+exit 42

clang/test/Driver/sycl-intelfpga-return-check.cpp

@@ -0,0 +1,15 @@
+// REQUIRES: system-linux 
+
+/// Tests behavior with aoc -fintelpga.
+/// Uses a dummy aoc which returns '42' to make sure we properly emit a
+/// diagnostic and also do not stop compilation
+// RUN: env PATH=%S/Inputs/SYCL:$PATH \
+// RUN: not %clangxx -fsycl -fintelfpga -Xshardware %s -v 2>&1 \
+// RUN:  | FileCheck %s -check-prefix ERROR_OUTPUT
+// ERROR_OUTPUT: ld{{.*}} -o a.out
+// ERROR_OUTPUT: The FPGA image generated during this compile contains timing violations
+
+int main()
+{
+  return 0;
+}