#!/bin/sh -x
SO_EXT="hsaco"

TEST_NAME=$1
DST_DIR=$2
ROCM_DIR=$3
TGT_LIST=$4

if [ -z "$TEST_NAME" ] ; then
  echo "Usage: $0 <test name> <dst dir>"
  echo "  Will look for <test name>.cl and will build <test name>.$SO_EXT dynamic code object library"
  exit 1
fi
OBJ_NAME=$(echo "_$(basename $TEST_NAME)" | sed -e 's/_./\U&\E/g' -e 's/_//g')

if [ -z "$DST_DIR" ] ; then
  DST_DIR=$(dirname TEST_NAME)
fi

if [ -z "$ROCM_DIR" ] ; then
  ROCM_DIR=/opt/rocm
fi

if [ -z "$TGT_LIST" ] ; then
  TGT_LIST=`$ROCM_DIR/bin/rocminfo | grep "amdgcn-amd-amdhsa--" | head -n 1 | sed -n "s/^.*amdgcn-amd-amdhsa--\(\w*\).*$/\1/p"`
fi

if [ -z "$TGT_LIST" ] ; then
  echo "Error: GPU targets not found"
  exit 1
fi

OCL_VER="2.0"

if [ -e $ROCM_DIR/llvm ] ; then
  LLVM_DIR=$ROCM_DIR/llvm
  LIB_DIR=$ROCM_DIR/lib
else
  LLVM_DIR=$ROCM_DIR/hcc
  LIB_DIR=$LLVM_DIR/lib
fi

# Determine whether using new or old device-libs layout
if [ -e $LIB_DIR/bitcode/opencl.amdgcn.bc ]; then
  BC_DIR=$LIB_DIR/bitcode
elif [ -e $LIB_DIR/opencl.amdgcn.bc ]; then
  BC_DIR=$LIB_DIR
elif [ -e $ROCM_DIR/amdgcn/bitcode/opencl.bc ]; then
  BC_DIR=$ROCM_DIR/amdgcn/bitcode
else
  echo "Error: Cannot find amdgcn bitcode directory"
  exit 1
fi

CLANG_ROOT=$LLVM_DIR/lib/clang
CLANG_DIR=`ls -d $CLANG_ROOT/* | head -n 1`
if [ "$CLANG_DIR" = "" ] ; then
  echo "Error: LLVM clang library was not found"
  exit 1
fi

BIN_DIR=$LLVM_DIR/bin
INC_DIR=$CLANG_DIR/include
if [ -e $BC_DIR/opencl.amdgcn.bc ]; then
  BITCODE_OPTS="-nogpulib \
    -Xclang -mlink-bitcode-file -Xclang $BC_DIR/opencl.amdgcn.bc \
    -Xclang -mlink-bitcode-file -Xclang $BC_DIR/ockl.amdgcn.bc \
    -Xclang -mlink-bitcode-file -Xclang $BC_DIR/ocml.amdgcn.bc"
else
  BITCODE_OPTS="--hip-device-lib-path=$BC_DIR"
fi

for GFXIP in $TGT_LIST ; do
  OBJ_PREF=$GFXIP
  OBJ_FILE="${OBJ_PREF}_${OBJ_NAME}.$SO_EXT"
  $BIN_DIR/clang -cl-std=CL$OCL_VER -include $INC_DIR/opencl-c.h $BITCODE_OPTS -target amdgcn-amd-amdhsa -mcpu=$GFXIP $TEST_NAME.cl -o $DST_DIR/$OBJ_FILE
  echo "'$OBJ_FILE' generated"
done

exit 0