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Fix unnecessary one-time recompile of stdlib with -enable-ossa-flag (#39516)

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* Fix unnecessary one-time recompile of stdlib with -enable-ossa-flag

This includes a bit in the module format to represent if the module was
compiled with -enable-ossa-modules flag. When compiling a client module
with -enable-ossa-modules flag, all dependent modules are checked for this bit,
if not on, recompilation is triggered with -enable-ossa-modules.

* Updated tests
This commit is contained in:
Meghana Gupta
2021-10-04 18:46:40 -07:00
committed by GitHub
parent b3416247f5
commit f458d9b490
36 changed files with 213 additions and 173 deletions
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8
lib/DriverTool/modulewrap_main.cpp
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@@ -175,20 +175,20 @@ int modulewrap_main(ArrayRef<const char *> Args, const char *Argv0,
SearchPathOpts.RuntimeResourcePath = std::string(RuntimeResourcePath.str());
SourceManager SrcMgr;
SILOptions SILOpts;
TypeCheckerOptions TypeCheckOpts;
LangOptions LangOpts;
ClangImporterOptions ClangImporterOpts;
symbolgraphgen::SymbolGraphOptions SymbolGraphOpts;
LangOpts.Target = Invocation.getTargetTriple();
ASTContext &ASTCtx = *ASTContext::get(LangOpts, TypeCheckOpts, SearchPathOpts,
ClangImporterOpts, SymbolGraphOpts, SrcMgr,
Instance.getDiags());
ASTContext &ASTCtx = *ASTContext::get(
LangOpts, TypeCheckOpts, SILOpts, SearchPathOpts, ClangImporterOpts,
SymbolGraphOpts, SrcMgr, Instance.getDiags());
registerParseRequestFunctions(ASTCtx.evaluator);
registerTypeCheckerRequestFunctions(ASTCtx.evaluator);
ASTCtx.addModuleLoader(ClangImporter::create(ASTCtx, ""), true);
ModuleDecl *M = ModuleDecl::create(ASTCtx.getIdentifier("swiftmodule"), ASTCtx);
SILOptions SILOpts;
std::unique_ptr<Lowering::TypeConverter> TC(new Lowering::TypeConverter(*M));
std::unique_ptr<SILModule> SM = SILModule::createEmptyModule(M, *TC, SILOpts);
createSwiftModuleObjectFile(*SM, (*ErrOrBuf)->getBuffer(),