[PATCH] D134758: [RISCV][SelectionDAGBuilder] Fix crash when copying a v1f32 vector between basic blocks.
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 27 13:33:40 PDT 2022
craig.topper added inline comments.
================
Comment at: llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:455
+ } else if (ValueSVT.isFloatingPoint() && PartEVT.isInteger()) {
+ EVT IntermediateType = EVT::getIntegerVT(*DAG.getContext(), ValueSize);
+ Val = DAG.getNode(ISD::TRUNCATE, DL, IntermediateType, Val);
----------------
RKSimon wrote:
> Is implicit truncation guaranteed?
>
> A description comment might be useful.
I think so. The only case I know of this happening right now is PartEVT is i64 and ValueSVT is f32.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D134758/new/
https://reviews.llvm.org/D134758
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