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| author | Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> | 2021-09-20 11:32:01 +0200 |
|---|---|---|
| committer | Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> | 2021-10-05 12:15:55 +0200 |
| commit | 8ed0e6b2cf941aa29628acdf718e82618d60bfc0 (patch) | |
| tree | 9c1438ef718082bf1c45dafad3646b0e9c3569ad /llvm/lib/Object/XCOFFObjectFile.cpp | |
| parent | 1896fb2cfffcf120eb28cefb67ac3d56035adc43 (diff) | |
| download | llvm-8ed0e6b2cf941aa29628acdf718e82618d60bfc0.zip llvm-8ed0e6b2cf941aa29628acdf718e82618d60bfc0.tar.gz llvm-8ed0e6b2cf941aa29628acdf718e82618d60bfc0.tar.bz2 | |
[SelectionDAG] Replace error prone index check in BaseIndexOffset::computeAliasing
Deriving NoAlias based on having the same index in two BaseIndexOffset
expressions seemed weird (and as shown in the added unittest the
correctness of doing so depended on undocumented pre-conditions that
the user of BaseIndexOffset::computeAliasing would need to take care
of.
This patch removes the code that dereived NoAlias based on indices
being the same. As a compensation, to avoid regressions/diffs in
various lit test, we also add a new check. The new check derives
NoAlias in case the two base pointers are based on two different
GlobalValue:s (neither of them being a GlobalAlias).
Reviewed By: niravd
Differential Revision: https://reviews.llvm.org/D110256
Diffstat (limited to 'llvm/lib/Object/XCOFFObjectFile.cpp')
0 files changed, 0 insertions, 0 deletions