diff options
| author | John McCall <rjmccall@apple.com> | 2013-03-07 21:36:54 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2013-03-07 21:36:54 +0000 |
| commit | 1723f6398ea8aa8d602a478f47695bf3b0374d35 (patch) | |
| tree | fca2e38d1328e1b3650cb1d96f9ca5bf53f4c05d /lib/CodeGen/CGExprAgg.cpp | |
| parent | 76ecdfc53778a8468b7177c556fdbfe797fdbb29 (diff) | |
Evaluate compound literals directly into the result aggregate
when that aggregate isn't potentially aliased.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176654 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExprAgg.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprAgg.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp index 8c64e8a6e7..f9f2733401 100644 --- a/lib/CodeGen/CGExprAgg.cpp +++ b/lib/CodeGen/CGExprAgg.cpp @@ -531,12 +531,10 @@ void AggExprEmitter::VisitOpaqueValueExpr(OpaqueValueExpr *e) { void AggExprEmitter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) { - if (E->getType().isPODType(CGF.getContext())) { + if (Dest.isPotentiallyAliased() && + E->getType().isPODType(CGF.getContext())) { // For a POD type, just emit a load of the lvalue + a copy, because our // compound literal might alias the destination. - // FIXME: This is a band-aid; the real problem appears to be in our handling - // of assignments, where we store directly into the LHS without checking - // whether anything in the RHS aliases. EmitAggLoadOfLValue(E); return; } |