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Enable the global module index by default. Introduce the 

-fno-modules-global-index -cc1 option to allow one to disable the
index for performance testing purposes, but with a 10% win in
-fsyntax-only time, there is no reason a user would do this.

llvm-svn: 173707
This commit is contained in:
Douglas Gregor 2013-01-28 18:38:02 +00:00
parent 2e4ae4e154
commit 137f1b991e
4 changed files with 8 additions and 8 deletions
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4
clang/include/clang/Driver/CC1Options.td
View File

@ -289,8 +289,8 @@ def ast_dump_filter : Separate<["-"], "ast-dump-filter">,
HelpText<"Use with -ast-dump or -ast-print to dump/print only AST declaration"
" nodes having a certain substring in a qualified name. Use"
" -ast-list to list all filterable declaration node names.">;
def fmodules_global_index : Flag<["-"], "fmodules-global-index">,
HelpText<"Automatically generate or update the global module index">;
def fno_modules_global_index : Flag<["-"], "fno-modules-global-index">,
HelpText<"Do not automatically generate or update the global module index">;
let Group = Action_Group in {

4
clang/include/clang/Frontend/FrontendOptions.h
View File

@ -213,8 +213,8 @@ public:
ShowStats(false), ShowTimers(false), ShowVersion(false),
FixWhatYouCan(false), FixOnlyWarnings(false), FixAndRecompile(false),
FixToTemporaries(false), ARCMTMigrateEmitARCErrors(false),
SkipFunctionBodies(false), UseGlobalModuleIndex(false),
GenerateGlobalModuleIndex(false),
SkipFunctionBodies(false), UseGlobalModuleIndex(true),
GenerateGlobalModuleIndex(true),
ARCMTAction(ARCMT_None), ObjCMTAction(ObjCMT_None),
ProgramAction(frontend::ParseSyntaxOnly)
{}

2
clang/lib/Frontend/CompilerInvocation.cpp
View File

@ -689,7 +689,7 @@ static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
Opts.UseGlobalModuleIndex = Args.hasArg(OPT_fmodules_global_index);
Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
Opts.CodeCompleteOpts.IncludeMacros

6
clang/test/Modules/global_index.m
View File

@ -1,12 +1,12 @@
// RUN: rm -rf %t
// Run without global module index
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -F %S/Inputs %s -verify
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -fno-modules-global-index -F %S/Inputs %s -verify
// RUN: ls %t|not grep modules.idx
// Run and create the global module index
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -fmodules-global-index -F %S/Inputs %s -verify
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -F %S/Inputs %s -verify
// RUN: ls %t|grep modules.idx
// Run and use the global module index
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -fmodules-global-index -F %S/Inputs %s -verify -print-stats 2>&1 | FileCheck %s
// RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fdisable-module-hash -fmodules -F %S/Inputs %s -verify -print-stats 2>&1 | FileCheck %s
// expected-no-diagnostics
@import DependsOnModule;