[llvm-dev] Successors of MBB

Tue Apr 20 09:25:02 PDT 2021

There is no restriction.  For example, indirect branches can have multiple (more than two) targets.

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Krzysztof Parzyszek  kparzysz at quicinc.com<mailto:kparzysz at quicinc.com>   AI tools development

From: llvm-dev <llvm-dev-bounces at lists.llvm.org> On Behalf Of Svetlana Getmanskaya via llvm-dev
Sent: Monday, April 19, 2021 6:52 AM
To: llvm-dev at lists.llvm.org
Subject: [EXT] [llvm-dev] Successors of MBB

Hello All,
In my implementation of EmitInstrWithCustomInserter I have two branches in machine basic block so this MBB has 3 successors (two from branches and one fallthrough) but I've not found such a solution in other targets. I wonder if there is any restriction for the number of successors for MBB?
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