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| author | Mandeep Singh Grang <mgrang@codeaurora.org> | 2017-10-30 19:42:41 +0000 |
|---|---|---|
| committer | Mandeep Singh Grang <mgrang@codeaurora.org> | 2017-10-30 19:42:41 +0000 |
| commit | f83268bd9e2fd087d4396d3b63c87b2bd2641b68 (patch) | |
| tree | dfc272cdc6d12d1b6f4f72d753da08fa6b9efd8d /llvm/lib/Transforms/Scalar/GVNHoist.cpp | |
| parent | 3c128cb1e65b6419ab21a8cf9a948d84ce406e42 (diff) | |
| download | bcm5719-llvm-f83268bd9e2fd087d4396d3b63c87b2bd2641b68.tar.gz bcm5719-llvm-f83268bd9e2fd087d4396d3b63c87b2bd2641b68.zip | |
[GVNHoist] Fix non-deterministic sort order of PHIs for identical instructions
Summary: This fixes failure in Transforms/GVNHoist/hoist.ll uncovered by D39245.
Reviewers: hiraditya, spop, dberlin
Reviewed By: dberlin
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39410
llvm-svn: 316949
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVNHoist.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVNHoist.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVNHoist.cpp b/llvm/lib/Transforms/Scalar/GVNHoist.cpp index c13768d38f6..d77ebdcd975 100644 --- a/llvm/lib/Transforms/Scalar/GVNHoist.cpp +++ b/llvm/lib/Transforms/Scalar/GVNHoist.cpp @@ -703,7 +703,7 @@ private: // Vector of PHIs contains PHIs for different instructions. // Sort the args according to their VNs, such that identical // instructions are together. - std::sort(CHIs.begin(), CHIs.end(), cmpVN); + std::stable_sort(CHIs.begin(), CHIs.end(), cmpVN); auto TI = BB->getTerminator(); auto B = CHIs.begin(); // [PreIt, PHIIt) form a range of CHIs which have identical VNs. |
