diff options
| author | Douglas Gregor <dgregor@apple.com> | 2012-02-24 22:40:36 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2012-02-24 22:40:36 +0000 |
| commit | a98a28534e48e59d5f7d69adae121589e298dd43 (patch) | |
| tree | 50205e7384e8a5238d940a7a21ad6751ae7f235c /lib/CodeGen | |
| parent | c7b5543ad32a5c265c02e71b2a6f9856440ed13f (diff) | |
For the purposes of building LLVM types, a forward-declared
enumeration type with a fixed underlying type is complete. Fixes
<rdar://problem/10916155>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151403 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/CodeGenTypes.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/CodeGenTypes.cpp b/lib/CodeGen/CodeGenTypes.cpp index 03465199a0..2da6cf0f2d 100644 --- a/lib/CodeGen/CodeGenTypes.cpp +++ b/lib/CodeGen/CodeGenTypes.cpp @@ -199,8 +199,13 @@ bool CodeGenTypes::isFuncTypeArgumentConvertible(QualType Ty) { // If it's a tagged type used by-value, but is just a forward decl, we can't // convert it. Note that getDefinition()==0 is not the same as !isDefinition. - if (TT->getDecl()->getDefinition() == 0) + // The exception is an enumeration type with a fixed underlying type; these + // can be converted even if they are forward declarations. + if (TT->getDecl()->getDefinition() == 0 && + !(isa<EnumDecl>(TT->getDecl()) && + cast<EnumDecl>(TT->getDecl())->isFixed())) { return false; + } // If this is an enum, then it is always safe to convert. const RecordType *RT = dyn_cast<RecordType>(TT); |