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| author | David Sherwood <david.sherwood@arm.com> | 2021-09-28 14:33:10 +0100 |
|---|---|---|
| committer | David Sherwood <david.sherwood@arm.com> | 2021-10-06 09:27:44 +0100 |
| commit | 37edb7d3e26353ffd8a239b3f850925dc913a6bb (patch) | |
| tree | 1f637042085fae5d8315815e12f3019328a652b4 /llvm/lib/Support/ErrorHandling.cpp | |
| parent | 0c7495848a02e1bcc68527c77c2a060ffae408c1 (diff) | |
| download | llvm-37edb7d3e26353ffd8a239b3f850925dc913a6bb.zip llvm-37edb7d3e26353ffd8a239b3f850925dc913a6bb.tar.gz llvm-37edb7d3e26353ffd8a239b3f850925dc913a6bb.tar.bz2 | |
[SVE] Fix incorrect DAG combines when extracting fixed-width from scalable vectors
We were previously silently generating incorrect code when extracting a
fixed-width vector from a scalable vector. This is worse than crashing,
since the user will have no indication that this is currently unsupported
behaviour. I have fixed the code to only perform DAG combines when safe
to do so, i.e. the input and output vectors are both fixed-width or
both scalable.
Test added here:
CodeGen/AArch64/sve-extract-scalable-vector.ll
Differential revision: https://reviews.llvm.org/D110624
Diffstat (limited to 'llvm/lib/Support/ErrorHandling.cpp')
0 files changed, 0 insertions, 0 deletions