#!/bin/bash

# TODO: the specs in this folder still expect typed pointers and so will fail
# on LLVM 15+ which use opaque pointers

set -euo pipefail

SCRIPT_PATH="$(realpath "$0")"
SCRIPT_ROOT="$(dirname "$SCRIPT_PATH")"

BUILD_DIR=$SCRIPT_ROOT/../../.build
LLVM_CONFIG="$(basename "$("$SCRIPT_ROOT"/../../src/llvm/ext/find-llvm-config.sh)")"
FILE_CHECK=FileCheck-"${LLVM_CONFIG#llvm-config-}"
crystal=${CRYSTAL_SPEC_COMPILER_BIN:-$SCRIPT_ROOT/../../bin/crystal}

mkdir -p "$BUILD_DIR"

function test() {
  echo "test: $*"

  input_cr="$SCRIPT_ROOT/$1"
  output_ll="$BUILD_DIR/${1%.cr}.ll"
  # FIXME: unused variable
  # compiler_options="$2"
  check_prefix="${3+--check-prefix $3}"

  # $BUILD_DIR/test-ir is never used
  # pushd $BUILD_DIR + $output_ll is a workaround due to the fact that we can't control
  # the filename generated by --emit=llvm-ir
  "$crystal" build --single-module --no-color --emit=llvm-ir "$2" -o "$BUILD_DIR"/test-ir "$input_cr"
  $FILE_CHECK "$input_cr" --input-file "$output_ll" "$check_prefix"

  rm "$BUILD_DIR"/test-ir.o
  rm "$output_ll"
}

pushd "$BUILD_DIR" >/dev/null

test argless-initialize-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test proc-call-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test proc-pointer-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test pass-closure-to-c-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"

# #11416
test const-read-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test class-var-read-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test virtual-class-var-read-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"
test virtual-metaclass-var-read-debug-loc.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty"

test memset.cr "--cross-compile --target i386-apple-darwin --prelude=empty --no-debug" X32
test memset.cr "--cross-compile --target i386-unknown-linux-gnu --prelude=empty --no-debug" X32
test memset.cr "--cross-compile --target x86_64-apple-darwin --prelude=empty --no-debug" X64
test memset.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty --no-debug" X64

test memcpy.cr "--cross-compile --target x86_64-apple-darwin --prelude=empty --no-debug" X64
test memcpy.cr "--cross-compile --target x86_64-unknown-linux-gnu --prelude=empty --no-debug" X64

test cast-unions.cr "--cross-compile --target x86_64-apple-darwin --prelude=empty --no-debug" X64
test assign-unions.cr "--cross-compile --target x86_64-apple-darwin --prelude=empty --no-debug" X64

popd >/dev/null