================
@@ -49,7 +53,14 @@ struct PassPluginLibraryInfo {
/// The callback for registering plugin passes with a \c PassBuilder
/// instance
- void (*RegisterPassBuilderCallbacks)(PassBuilder &);
+ void (*RegisterPassBuilderCallbacks)(PassBuilder &) = nullptr;
+
+ /// Callback called before running the back-end passes on the module. The
+ /// callback can generate code itself by writing the expected output to OS
and
+ /// returning true to prevent the default pipeline and further plugin
+ /// callbacks from running.
+ bool (*PreCodeGenCallback)(Module &, TargetMachine &, CodeGenFileType,
----------------
weliveindetail wrote:
I like the idea to have pre/post opt/codegen callbacks. If we ever get the new
pass manager in the Codegen pipeline, that would help plugins to handle the
pipeline change. Could we generalize this into something like
`registerPipelinePhaseCallbacks()`?
https://github.com/llvm/llvm-project/pull/170846
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