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clang-p2996/clang/test/ClangScanDeps/modules-full.cpp
Jan Svoboda 9d4837f47c [clang][deps][modules] Allocate input file paths lazily (#114457) 
This PR builds on top of #113984 and attempts to avoid allocating input
file paths eagerly. Instead, the `InputFileInfo` type used by
`ASTReader` now only holds `StringRef`s that point into the PCM file
buffer, and the full input file paths get resolved on demand.

The dependency scanner makes use of this in a bit of a roundabout way:
`ModuleDeps` now only holds (an owning copy of) the short unresolved
input file paths, which get resolved lazily. This can be a big win, I'm
seeing up to a 5% speedup.
2024-11-11 09:46:50 -08:00

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// RUN: rm -rf %t.dir
// RUN: rm -rf %t.cdb
// RUN: mkdir -p %t.dir
// RUN: cp %s %t.dir/modules_cdb_input.cpp
// RUN: cp %s %t.dir/modules_cdb_input2.cpp
// RUN: mkdir %t.dir/Inputs
// RUN: cp %S/Inputs/header.h %t.dir/Inputs/header.h
// RUN: cp %S/Inputs/header2.h %t.dir/Inputs/header2.h
// RUN: cp %S/Inputs/module.modulemap %t.dir/Inputs/module.modulemap
// RUN: sed -e "s|DIR|%/t.dir|g" %S/Inputs/modules_cdb.json > %t.cdb
// RUN: sed -e "s|DIR|%/t.dir|g" %S/Inputs/modules_cdb_clangcl.json > %t_clangcl.cdb
//
// RUN: clang-scan-deps -compilation-database %t.cdb -j 4 -format experimental-full \
// RUN: -mode preprocess-dependency-directives > %t.result
// RUN: cat %t.result | sed 's:\\\\\?:/:g' | FileCheck -DPREFIX=%/t.dir %s
//
// RUN: clang-scan-deps -compilation-database %t_clangcl.cdb -j 4 -format experimental-full \
// RUN: -mode preprocess-dependency-directives > %t_clangcl.result
// RUN: cat %t_clangcl.result | sed 's:\\\\\?:/:g' | FileCheck -DPREFIX=%/t.dir %s
#include "header.h"
// CHECK: {
// CHECK-NEXT: "modules": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [
// CHECK-NEXT: {
// CHECK-NEXT: "context-hash": "[[HASH_H2_DINCLUDE:[A-Z0-9]+]]",
// CHECK-NEXT: "module-name": "header2"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "clang-modulemap-file": "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "command-line": [
// CHECK-NEXT: "-cc1"
// CHECK: "-emit-module"
// CHECK: "-fno-modules-prune-non-affecting-module-map-files"
// CHECK: "-fmodule-file={{.*}}[[PREFIX]]/module-cache{{(_clangcl)?}}/[[HASH_H2_DINCLUDE]]/header2-{{[A-Z0-9]+}}.pcm"
// CHECK-NOT: "-fimplicit-module-maps"
// CHECK: "-fmodule-name=header1"
// CHECK: "-fno-implicit-modules"
// CHECK: ],
// CHECK-NEXT: "context-hash": "[[HASH_H1_DINCLUDE:[A-Z0-9]+]]",
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "[[PREFIX]]/Inputs/header.h"
// CHECK-NEXT: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "header1"
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [],
// CHECK-NEXT: "clang-modulemap-file": "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "command-line": [
// CHECK-NEXT: "-cc1",
// CHECK: "-emit-module",
// CHECK: "-fno-modules-prune-non-affecting-module-map-files"
// CHECK-NOT: "-fimplicit-module-maps",
// CHECK: "-fmodule-name=header1",
// CHECK: "-fno-implicit-modules",
// CHECK: ],
// CHECK-NEXT: "context-hash": "[[HASH_H1:[A-Z0-9]+]]",
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "[[PREFIX]]/Inputs/header.h"
// CHECK-NEXT: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "header1"
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [],
// CHECK-NEXT: "clang-modulemap-file": "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "command-line": [
// CHECK-NEXT: "-cc1",
// CHECK: "-emit-module",
// CHECK: "-fno-modules-prune-non-affecting-module-map-files"
// CHECK: "-fmodule-name=header2",
// CHECK-NOT: "-fimplicit-module-maps",
// CHECK: "-fno-implicit-modules",
// CHECK: ],
// CHECK-NEXT: "context-hash": "[[HASH_H2_DINCLUDE]]",
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/Inputs/module.modulemap",
// CHECK-NEXT: "[[PREFIX]]/Inputs/header2.h"
// CHECK-NEXT: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "header2"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "translation-units": [
// CHECK-NEXT: {
// CHECK-NEXT: "commands": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-context-hash": "[[HASH_TU_DINCLUDE:[A-Z0-9]+]]",
// CHECK-NEXT: "clang-module-deps": [
// CHECK-NEXT: {
// CHECK-NEXT: "context-hash": "[[HASH_H1_DINCLUDE]]",
// CHECK-NEXT: "module-name": "header1"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-fimplicit-modules"
// CHECK-NOT: "-fimplicit-module-maps"
// CHECK: "-fmodule-file={{.*}}[[PREFIX]]/module-cache{{(_clangcl)?}}/[[HASH_H1_DINCLUDE]]/header1-{{[A-Z0-9]+}}.pcm"
// CHECK: ],
// CHECK-NEXT: "executable": "{{.*}}clang{{.*}}"
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/modules_cdb_input2.cpp"
// CHECK-NEXT: ],
// CHECK-NEXT: "input-file": "[[PREFIX]]/modules_cdb_input2.cpp"
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "commands": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-context-hash": "[[HASH_TU:[A-Z0-9]+]]",
// CHECK-NEXT: "clang-module-deps": [
// CHECK-NEXT: {
// CHECK-NEXT: "context-hash": "[[HASH_H1]]",
// CHECK-NEXT: "module-name": "header1"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-fimplicit-modules"
// CHECK-NOT: "-fimplicit-module-maps"
// CHECK: "-fmodule-file={{.*}}[[PREFIX]]/module-cache{{(_clangcl)?}}/[[HASH_H1]]/header1-{{[A-Z0-9]+}}.pcm"
// CHECK: ],
// CHECK-NEXT: "executable": "{{.*}}clang{{.*}}"
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: ],
// CHECK-NEXT: "input-file": "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "commands": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-context-hash": "[[HASH_TU:[A-Z0-9]+]]",
// CHECK-NEXT: "clang-module-deps": [
// CHECK-NEXT: {
// CHECK-NEXT: "context-hash": "[[HASH_H1]]",
// CHECK-NEXT: "module-name": "header1"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-fimplicit-modules"
// CHECK-NOT: "-fimplicit-module-maps"
// CHECK: "-fmodule-file={{.*}}[[PREFIX]]/module-cache{{(_clangcl)?}}/[[HASH_H1]]/header1-{{[A-Z0-9]+}}.pcm"
// CHECK: ],
// CHECK-NEXT: "executable": "{{.*}}clang{{.*}}"
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: ],
// CHECK-NEXT: "input-file": "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "commands": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-context-hash": "[[HASH_TU:[A-Z0-9]+]]",
// CHECK-NEXT: "clang-module-deps": [
// CHECK-NEXT: {
// CHECK-NEXT: "context-hash": "[[HASH_H1]]",
// CHECK-NEXT: "module-name": "header1"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-fimplicit-modules"
// CHECK-NOT: "-fimplicit-module-maps"
// CHECK: "-fmodule-file={{.*}}[[PREFIX]]/module-cache{{(_clangcl)?}}/[[HASH_H1]]/header1-{{[A-Z0-9]+}}.pcm"
// CHECK: ],
// CHECK-NEXT: "executable": "{{.*}}clang{{.*}}"
// CHECK-NEXT: "file-deps": [
// CHECK-NEXT: "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: ],
// CHECK-NEXT: "input-file": "[[PREFIX]]/modules_cdb_input.cpp"
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: }
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