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forward direct return to direct results

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This commit is contained in:
Azoy
2019-04-01 18:12:34 -05:00
parent edcab952f1
commit bbf680df64
2 changed files with 36 additions and 5 deletions
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12
lib/SILGen/SILGenFunction.cpp
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@@ -657,10 +657,11 @@ void SILGenFunction::emitGeneratorFunction(SILDeclRef function, VarDecl *var) {
auto resultType = decl->mapTypeIntoContext(interfaceType)->getCanonicalType();
auto origResultType = AbstractionPattern(resultType);
SmallVector<SILValue, 4> directResults;
if (F.getConventions().hasIndirectSILResults()) {
Scope scope(Cleanups, CleanupLocation(var));
SmallVector<SILValue, 4> directResults;
SmallVector<CleanupHandle, 4> cleanups;
auto init = prepareIndirectResultInit(resultType, directResults, cleanups);
@@ -671,18 +672,19 @@ void SILGenFunction::emitGeneratorFunction(SILDeclRef function, VarDecl *var) {
for (auto cleanup : cleanups) {
Cleanups.forwardCleanup(cleanup);
}
Cleanups.emitBranchAndCleanups(ReturnDest, loc, directResults);
} else {
Scope scope(Cleanups, CleanupLocation(var));
// If we have no indirect results, just return the result.
auto result = emitApplyOfStoredPropertyInitializer(loc, entry, subs,
resultType,
origResultType,
SGFContext())
.getAsSingleValue(*this, loc);
B.createReturn(loc, result);
.ensurePlusOne(*this, loc);
std::move(result).forwardAll(*this, directResults);
}
Cleanups.emitBranchAndCleanups(ReturnDest, loc, directResults);
emitEpilog(loc);
}