diff options
| author | Dan Gohman <gohman@apple.com> | 2009-11-20 17:50:21 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-11-20 17:50:21 +0000 |
| commit | 837be07979723fb05ef47c828da014ce9ed1ba34 (patch) | |
| tree | a58deed4bde8b6659254782e8f57545b5e37384e /lib/CodeGen/LatencyPriorityQueue.cpp | |
| parent | 37628e009827420d56cdf9b26c5104abd726e53b (diff) | |
Revert the rule that considers comparisons between two pointers in the
same object to be a non-capture; Duncan pointed out a way that such
a comparison could be a capture.
Make the rule that considers a comparison against null more specific,
and only consider noalias return values compared against null. This
still supports test/Transforms/GVN/nonescaping-malloc.ll, and is not
susceptible to the problem Duncan pointed out with noalias arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89468 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LatencyPriorityQueue.cpp')
0 files changed, 0 insertions, 0 deletions