xref: /llvm-project/clang/test/ClangScanDeps/optimize-canonicalize-macros.m (revision 68eb3b202f30a1c3f2575f44b9d16365258e66b6) 
1// This test verifies that command lines with equivalent -D and -U arguments
2// are canonicalized to the same module variant.
3
4// RUN: rm -rf %t
5// RUN: split-file %s %t
6// RUN: sed -e "s|DIR|%/t|g" %t/build/compile-commands.json.in > %t/build/compile-commands.json
7// RUN: clang-scan-deps -compilation-database %t/build/compile-commands.json \
8// RUN:   -j 1 -format experimental-full -optimize-args=canonicalize-macros > %t/deps.db
9// RUN: cat %t/deps.db | FileCheck %s -DPREFIX=%/t
10
11// Verify that there are only two variants and that the expected merges have
12// happened.
13
14// CHECK:      {
15// CHECK-NEXT:   "modules": [
16// CHECK-NEXT:     {
17// CHECK-NEXT:       "clang-module-deps": [],
18// CHECK-NEXT:       "clang-modulemap-file":
19// CHECK-NEXT:       "command-line": [
20// CHECK-NOT:          "J=1"
21// CHECK-NOT:          "J"
22// CHECK-NOT:          "K"
23// CHECK:            ],
24// CHECK-NEXT:       "context-hash": "{{.*}}",
25// CHECK-NEXT:       "file-deps": [
26// CHECK:            ],
27// CHECK-NEXT:       "link-libraries": [],
28// CHECK-NEXT:       "name": "A"
29// CHECK-NEXT:     },
30// CHECK-NEXT:     {
31// CHECK-NEXT:       "clang-module-deps": [],
32// CHECK-NEXT:       "clang-modulemap-file":
33// CHECK-NEXT:       "command-line": [
34// CHECK:              "Fඞ"
35// CHECK:              0D9E
36// CHECK:              "K"
37// CHECK:              "K"
38// CHECK:            ],
39// CHECK-NEXT:       "context-hash": "{{.*}}",
40// CHECK-NEXT:       "file-deps": [
41// CHECK:            ],
42// CHECK-NEXT:       "link-libraries": [],
43// CHECK-NEXT:       "name": "A"
44// CHECK-NEXT:     }
45// CHECK-NEXT:   ],
46// CHECK-NEXT:   "translation-units": [
47// CHECK:        ]
48// CHECK:      }
49
50
51//--- build/compile-commands.json.in
52
53[
54{
55  "directory": "DIR",
56  "command": "clang -c DIR/tu0.m -DJ=1 -UJ -DJ=2 -DI -DK(x)=x -I modules/A -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps",
57  "file": "DIR/tu0.m"
58},
59{
60  "directory": "DIR",
61  "command": "clang -c DIR/tu1.m -DK -DK(x)=x -DI -D \"J=2\" -I modules/A -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps",
62  "file": "DIR/tu1.m"
63},
64{
65  "directory": "DIR",
66  "command": "clang -c DIR/tu2.m -I modules/A -DFඞ \"-DF\\\\u{0D9E}\" -DK -DK -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps",
67  "file": "DIR/tu2.m"
68}
69]
70
71//--- modules/A/module.modulemap
72
73module A {
74  umbrella header "A.h"
75}
76
77//--- modules/A/A.h
78
79//--- tu0.m
80
81#include <A.h>
82
83//--- tu1.m
84
85#include <A.h>
86
87//--- tu2.m
88
89#include <A.h>
90