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author | Chris Lattner <sabre@nondot.org> | 2004-07-02 23:20:17 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2004-07-02 23:20:17 +0000 |
commit | c5f143b6e7d287d0dc3e5c55b3c83a2670ca99f8 (patch) | |
tree | 4332b0a9fe8235e481e27f12170a19cb75770c41 /lib/VMCore/Type.cpp | |
parent | cf27afb64e3387a747a467072536df8259488213 (diff) | |
download | external_llvm-c5f143b6e7d287d0dc3e5c55b3c83a2670ca99f8.zip external_llvm-c5f143b6e7d287d0dc3e5c55b3c83a2670ca99f8.tar.gz external_llvm-c5f143b6e7d287d0dc3e5c55b3c83a2670ca99f8.tar.bz2 |
Fix Type::isSized() to realize that "{ opaque }" is not sized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14585 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/Type.cpp')
-rw-r--r-- | lib/VMCore/Type.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/VMCore/Type.cpp b/lib/VMCore/Type.cpp index 7798489..eefcee9 100644 --- a/lib/VMCore/Type.cpp +++ b/lib/VMCore/Type.cpp @@ -159,6 +159,21 @@ unsigned Type::getPrimitiveSize() const { } } +/// isSizedDerivedType - Derived types like structures and arrays are sized +/// iff all of the members of the type are sized as well. Since asking for +/// their size is relatively uncommon, move this operation out of line. +bool Type::isSizedDerivedType() const { + if (const ArrayType *ATy = dyn_cast<ArrayType>(this)) + return ATy->getElementType()->isSized(); + + if (!isa<StructType>(this)) return false; + + // Okay, our struct is sized if all of the elements are... + for (subtype_iterator I = subtype_begin(), E = subtype_end(); I != E; ++I) + if (!(*I)->isSized()) return false; + + return true; +} /// getForwardedTypeInternal - This method is used to implement the union-find /// algorithm for when a type is being forwarded to another type. |