diff options
| author | Tim Shen <timshen91@gmail.com> | 2016-07-06 17:44:03 +0000 |
|---|---|---|
| committer | Tim Shen <timshen91@gmail.com> | 2016-07-06 17:44:03 +0000 |
| commit | 1c3c0afc53171996c2ab66655727550198bc2f26 (patch) | |
| tree | 65a08efd28b518addc9855dfe71f9610367b076a /llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | |
| parent | f8591cf2490f84108b84e99ac643a5daf65204f7 (diff) | |
| download | llvm-1c3c0afc53171996c2ab66655727550198bc2f26.zip llvm-1c3c0afc53171996c2ab66655727550198bc2f26.tar.gz llvm-1c3c0afc53171996c2ab66655727550198bc2f26.tar.bz2 | |
[DAGCombiner] Fix visitSTORE to continue processing current SDNode, if findBetterNeighborChains doesn't actually CombineTo it.
Summary:
findBetterNeighborChains may or may not find a better chain for each node it finds, which include the node ("St") that visitSTORE is currently processing. If no better chain is found for St, visitSTORE should continue instead of return SDValue(St, 0), as if it's CombinedTo'ed.
This fixes bug 28130. There might be other ways to make the test pass (see D21409). I think both of the patches are fixing actual bugs revealed by the same testcase.
Reviewers: echristo, wschmidt, hfinkel, kbarton, amehsan, arsenm, nemanjai, bogner
Subscribers: mehdi_amini, nemanjai, llvm-commits
Differential Revision: http://reviews.llvm.org/D21692
llvm-svn: 274644
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp')
0 files changed, 0 insertions, 0 deletions