clang/test/ClangScanDeps/removed-args.c

   1 // Some command-line arguments used for compiling translation units are not
   2 // compatible with the semantics of modules or are likely to differ between
   3 // identical modules discovered from different translation units. This test
   4 // checks such arguments are removed from the command-lines: '-include',
   5 // '-dwarf-debug-flag' and '-main-file-name'. Similarly, several arguments
   6 // such as '-fmodules-cache-path=' are only relevant for implicit modules, and
   7 // are removed to better-canonicalize the compilation.
   8
   9 // RUN: rm -rf %t && mkdir %t
  10 // RUN: cp %S/Inputs/removed-args/* %t
  11 // RUN: touch %t/build-session
  12 // RUN: touch %t/tu.proftext
  13 // RUN: llvm-profdata merge %t/tu.proftext -o %t/tu.profdata
  14
  15 // RUN: sed "s|DIR|%/t|g" %S/Inputs/removed-args/cdb.json.template > %t/cdb.json
  16 // RUN: clang-scan-deps -compilation-database %t/cdb.json -format experimental-full > %t/result.json
  17 // RUN: cat %t/result.json | sed 's:\\\\\?:/:g' | FileCheck %s -DPREFIX=%/t
  18 //
  19 // CHECK:      {
  20 // CHECK-NEXT:   "modules": [
  21 // CHECK-NEXT:     {
  22 // CHECK-NEXT:       "clang-module-deps": [],
  23 // CHECK-NEXT:       "clang-modulemap-file": "[[PREFIX]]/module.modulemap",
  24 // CHECK-NEXT:       "command-line": [
  25 // CHECK-NEXT:         "-cc1"
  26 // CHECK-NOT:          "-fdebug-compilation-dir="
  27 // CHECK-NOT:          "-fcoverage-compilation-dir="
  28 // CHECK-NOT:          "-coverage-notes-file
  29 // CHECK-NOT:          "-coverage-data-file
  30 // CHECK-NOT:          "-fprofile-instrument-use-path
  31 // CHECK-NOT:          "-dwarf-debug-flags"
  32 // CHECK-NOT:          "-main-file-name"
  33 // CHECK-NOT:          "-include"
  34 // CHECK-NOT:          "-fmodules-cache-path=
  35 // CHECK-NOT:          "-fmodules-validate-once-per-build-session"
  36 // CHECK-NOT:          "-fbuild-session-timestamp=
  37 // CHECK-NOT:          "-fmodules-prune-interval=
  38 // CHECK-NOT:          "-fmodules-prune-after=
  39 // CHECK:            ],
  40 // CHECK-NEXT:       "context-hash": "[[HASH_MOD_HEADER:.*]]",
  41 // CHECK-NEXT:       "file-deps": [
  42 // CHECK-NEXT:         "[[PREFIX]]/module.modulemap",
  43 // CHECK-NEXT:         "[[PREFIX]]/mod_header.h"
  44 // CHECK-NEXT:       ],
  45 // CHECK-NEXT:       "link-libraries": [],
  46 // CHECK-NEXT:       "name": "ModHeader"
  47 // CHECK-NEXT:     },
  48 // CHECK-NEXT:     {
  49 // CHECK-NEXT:       "clang-module-deps": [],
  50 // CHECK-NEXT:       "clang-modulemap-file": "[[PREFIX]]/module.modulemap",
  51 // CHECK-NEXT:       "command-line": [
  52 // CHECK-NEXT:         "-cc1"
  53 // CHECK-NOT:          "-fdebug-compilation-dir=
  54 // CHECK-NOT:          "-fcoverage-compilation-dir=
  55 // CHECK-NOT:          "-coverage-notes-file
  56 // CHECK-NOT:          "-coverage-data-file
  57 // CHECK-NOT:          "-fprofile-instrument-use-path
  58 // CHECK-NOT:          "-dwarf-debug-flags"
  59 // CHECK-NOT:          "-main-file-name"
  60 // CHECK-NOT:          "-include"
  61 // CHECK-NOT:          "-fmodules-cache-path=
  62 // CHECK-NOT:          "-fmodules-validate-once-per-build-session"
  63 // CHECK-NOT:          "-fbuild-session-timestamp=
  64 // CHECK-NOT:          "-fmodules-prune-interval=
  65 // CHECK-NOT:          "-fmodules-prune-after=
  66 // CHECK:            ],
  67 // CHECK-NEXT:       "context-hash": "[[HASH_MOD_TU:.*]]",
  68 // CHECK-NEXT:       "file-deps": [
  69 // CHECK-NEXT:         "[[PREFIX]]/module.modulemap",
  70 // CHECK-NEXT:         "[[PREFIX]]/mod_tu.h"
  71 // CHECK-NEXT:       ],
  72 // CHECK-NEXT:       "link-libraries": [],
  73 // CHECK-NEXT:       "name": "ModTU"
  74 // CHECK-NEXT:     }
  75 // CHECK-NEXT:   ],
  76 // CHECK-NEXT:   "translation-units": [
  77 // CHECK-NEXT:     {
  78 // CHECK:            "clang-context-hash": "[[HASH_TU:.*]]",
  79 // CHECK-NEXT:       "clang-module-deps": [
  80 // CHECK-NEXT:         {
  81 // CHECK-NEXT:           "context-hash": "[[HASH_MOD_HEADER]]",
  82 // CHECK-NEXT:           "module-name": "ModHeader"
  83 // CHECK-NEXT:         },
  84 // CHECK-NEXT:         {
  85 // CHECK-NEXT:           "context-hash": "[[HASH_MOD_TU]]",
  86 // CHECK-NEXT:           "module-name": "ModTU"
  87 // CHECK-NEXT:         }
  88 // CHECK-NEXT:       ]
  89 // CHECK-NEXT:       "command-line": [
  90 // CHECK-NEXT:         "-cc1",
  91 // CHECK-NOT:          "-fmodules-cache-path=
  92 // CHECK-NOT:          "-fmodules-validate-once-per-build-session"
  93 // CHECK-NOT:          "-fbuild-session-timestamp=
  94 // CHECK-NOT:          "-fbuild-session-file=
  95 // CHECK-NOT:          "-fmodules-prune-interval=
  96 // CHECK-NOT:          "-fmodules-prune-after=
  97 // CHECK:            ],
  98
  99 // Check for removed args for PCH invocations.
 100
 101 // RUN: split-file %s %t
 102 // RUN: sed "s|DIR|%/t|g" %t/cdb-pch.json.template > %t/cdb-pch.json
 103 // RUN: clang-scan-deps -compilation-database %t/cdb-pch.json -format experimental-full > %t/result-pch.json
 104 // RUN: cat %t/result-pch.json | sed 's:\\\\\?:/:g' | FileCheck %s -DPREFIX=%/t -check-prefix=PCH
 105 //
 106 // PCH-NOT:          "-fdebug-compilation-dir="
 107 // PCH-NOT:          "-fcoverage-compilation-dir="
 108 // PCH-NOT:          "-coverage-notes-file
 109 // PCH-NOT:          "-coverage-data-file
 110 // PCH-NOT:          "-fprofile-instrument-use-path
 111 // PCH-NOT:          "-include"
 112 // PCH-NOT:          "-fmodules-cache-path=
 113 // PCH-NOT:          "-fmodules-validate-once-per-build-session"
 114 // PCH-NOT:          "-fbuild-session-timestamp=
 115 // PCH-NOT:          "-fmodules-prune-interval=
 116 // PCH-NOT:          "-fmodules-prune-after=
 117
 118 //--- cdb-pch.json.template
 119 [
 120   {
 121     "directory": "DIR",
 122     "command": "clang -x c-header DIR/header.h -fmodules -fimplicit-module-maps -fmodules-cache-path=DIR/cache -fdebug-compilation-dir=DIR/debug -fcoverage-compilation-dir=DIR/coverage -ftest-coverage -fprofile-instr-use=DIR/tu.profdata -o DIR/header.h.pch -serialize-diagnostics DIR/header.h.pch.diag ",
 123     "file": "DIR/header.h.pch"
 124   }
 125 ]