1#! /bin/bash
2
3# This script is intended as a FileCheck replacement to update the test
4# expectations in a -ast-dump test.
5#
6# Usage:
7#
8# $ lit -DFileCheck=$PWD/utils/make-ast-dump-check.sh test/AST/ast-dump-openmp-*
9
10prefix=CHECK
11
12while [[ "$#" -ne 0 ]]; do
13  case "$1" in
14  --check-prefix)
15    shift
16    prefix="$1"
17    ;;
18  --implicit-check-not)
19    shift
20    ;;
21  -*)
22    ;;
23  *)
24    file="$1"
25    ;;
26  esac
27  shift
28done
29
30testdir="$(dirname "$file")"
31
32read -r -d '' script <<REWRITE
33BEGIN {
34  skipping_builtins = 0
35  matched_last_line = 0
36}
37
38/^[\`|].* line:/ {
39  skipping_builtins = 0
40}
41
42{
43  if (skipping_builtins == 1) {
44    matched_last_line = 0
45    next
46  }
47}
48
49/TranslationUnitDecl/ {
50  skipping_builtins = 1
51}
52
53{
54  s = \$0
55  gsub("0x[0-9a-fA-F]+", "{{.*}}", s)
56  gsub("$testdir/", "{{.*}}", s)
57}
58
59matched_last_line == 0 {
60  print "// ${prefix}: " s
61}
62
63matched_last_line == 1 {
64  print "// ${prefix}-NEXT: " s
65}
66
67{
68  matched_last_line = 1
69}
70REWRITE
71
72echo "$script"
73
74{
75  cat "$file" | grep -v "$prefix"
76  awk "$script"
77} > "$file.new"
78
79mv "$file.new" "$file"
80