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| author | Chris Lattner <sabre@nondot.org> | 2010-03-16 19:15:03 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-03-16 19:15:03 +0000 |
| commit | 777448f6491b6b82e2c39f11d353e39c24dd20e2 (patch) | |
| tree | 32f82c98107a2ac5b7c09456880639b89d2fe445 /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | f1078062916004238c70550585fe1a2e8b32a62f (diff) | |
| download | external_llvm-777448f6491b6b82e2c39f11d353e39c24dd20e2.zip external_llvm-777448f6491b6b82e2c39f11d353e39c24dd20e2.tar.gz external_llvm-777448f6491b6b82e2c39f11d353e39c24dd20e2.tar.bz2 | |
improve support for uniontype and ConstantUnion, patch by Tim Northover!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98656 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 3d9a4d5..11293e4 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -2592,6 +2592,11 @@ void SelectionDAGBuilder::visitGetElementPtr(User &I) { } Ty = StTy->getElementType(Field); + } else if (const UnionType *UnTy = dyn_cast<UnionType>(Ty)) { + unsigned Field = cast<ConstantInt>(Idx)->getZExtValue(); + + // Offset canonically 0 for unions, but type changes + Ty = UnTy->getElementType(Field); } else { Ty = cast<SequentialType>(Ty)->getElementType(); |