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| author | Stuart Hastings <stuart@apple.com> | 2010-12-21 17:16:58 +0000 |
|---|---|---|
| committer | Stuart Hastings <stuart@apple.com> | 2010-12-21 17:16:58 +0000 |
| commit | 56500edc7a2599e651d39df71a714e1e255ed96a (patch) | |
| tree | a34482d6d84601e0b9dbf0e1ccde705edf6eb20b /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | |
| parent | 1cd0f4637bfb8c93996b09baec8bf2bb220b74ca (diff) | |
| download | external_llvm-56500edc7a2599e651d39df71a714e1e255ed96a.zip external_llvm-56500edc7a2599e651d39df71a714e1e255ed96a.tar.gz external_llvm-56500edc7a2599e651d39df71a714e1e255ed96a.tar.bz2 | |
Fix indentation, add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122345 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index a60b871..a3fc3a3 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -253,13 +253,15 @@ void SelectionDAGLegalize::LegalizeDAG() { /// FindCallEndFromCallStart - Given a chained node that is part of a call /// sequence, find the CALLSEQ_END node that terminates the call sequence. static SDNode *FindCallEndFromCallStart(SDNode *Node, int depth = 0) { + // Nested CALLSEQ_START/END constructs aren't yet legal, + // but we can DTRT and handle them correctly here. if (Node->getOpcode() == ISD::CALLSEQ_START) depth++; else if (Node->getOpcode() == ISD::CALLSEQ_END) { - depth--; - if (depth == 0) - return Node; - } + depth--; + if (depth == 0) + return Node; + } if (Node->use_empty()) return 0; // No CallSeqEnd |