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| author | Piotr Sobczak <piotr.sobczak@amd.com> | 2019-04-05 07:44:09 +0000 |
|---|---|---|
| committer | Piotr Sobczak <piotr.sobczak@amd.com> | 2019-04-05 07:44:09 +0000 |
| commit | 0376ac1d946466eb346c2055554153e11b0fc3cf (patch) | |
| tree | a9e134c70ee7634941c786dd42ef32e5d0fb12c6 /llvm/lib/Object/Minidump.cpp | |
| parent | 94cd06676349f034f005b3284fc161d96baadbea (diff) | |
| download | bcm5719-llvm-0376ac1d946466eb346c2055554153e11b0fc3cf.tar.gz bcm5719-llvm-0376ac1d946466eb346c2055554153e11b0fc3cf.zip | |
[SelectionDAG] Compute known bits of CopyFromReg
Summary:
Teach SelectionDAG how to compute known bits of ISD::CopyFromReg if
the virtual reg used has one def only.
This can be particularly useful when calling isBaseWithConstantOffset()
with the ISD::CopyFromReg argument, as more optimizations may get enabled
in the result.
Also add a missing truncation on X86, found by testing of this patch.
Change-Id: Id1c9fceec862d118c54a5b53adf72ada5d6daefa
Reviewers: bogner, craig.topper, RKSimon
Reviewed By: RKSimon
Subscribers: lebedev.ri, nemanjai, jvesely, nhaehnle, javed.absar, jsji, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59535
llvm-svn: 357745
Diffstat (limited to 'llvm/lib/Object/Minidump.cpp')
0 files changed, 0 insertions, 0 deletions
