Split LLVM_IR module in pieces that use intrinsics.gen and the pieces that don't.

[rsmith]

include/llvm/module.modulemap

123

You need this to be a separate top-level module, or it won't help, because each top-level module is built as a single entity (we need the intrinsics_gen output files to be generated before anything in the corresponding top-level module is used).

[v.g.vassilev]

include/llvm/module.modulemap

123

Good point. It seems I have to add quite a few files (~50?) from IR explicitly to LLVM_Intrinsics_gen_IR. Is that acceptable?

[v.g.vassilev]

It seems this is enough to disentangle the tablegen dependent headers from module LLVM_IR. Would that be the right way to express this?

[v.g.vassilev]

r274006.

include/llvm/module.modulemap

module Pass {
     header "PassAnalysisSupport.h"
     export *
   }
 
   module PassRegistry { header "PassRegistry.h" export * }
   module InitializePasses { header "InitializePasses.h" export * }
 }
 
+module LLVM_intrinsic_gen {
+  requires cplusplus
+
+  // Delay building the modules containing dependencies to Attributes.h and
+  // Intrinsics.h because they need to be generated by tablegen first.
+
+  // Attributes.h
+  module IR_Argument { header "IR/Argument.h" export * }
+  module IR_Attributes { header "IR/Attributes.h" export * }
+  module IR_CallSite { header "IR/CallSite.h" export * }
+  module IR_ConstantFolder { header "IR/ConstantFolder.h" export * }
+  module IR_NoFolder { header "IR/NoFolder.h" export * }
+  module IR_Module { header "IR/Module.h" export * }
+  module IR_ModuleSummaryIndex { header "IR/ModuleSummaryIndex.h" export * }
+  module IR_Function { header "IR/Function.h" export * }
+  module IR_InstrTypes { header "IR/InstrTypes.h" export * }
+  module IR_Instructions { header "IR/Instructions.h" export * }
+
+
+  // Intrinsics.h
+  module IR_CFG { header "IR/CFG.h" export * }
+  module IR_ConstantRange { header "IR/ConstantRange.h" export * }
+  module IR_Dominators { header "IR/Dominators.h" export * }
+  module IR_IRBuilder { header "IR/IRBuilder.h" export * }
+  module IR_PassManager { header "IR/PassManager.h" export * }
+  module IR_PredIteratorCache { header "IR/PredIteratorCache.h" export * }
+  module IR_Verifier { header "IR/Verifier.h" export * }
+  module IR_InstIterator { header "IR/InstIterator.h" export * }
+  module IR_InstVisitor { header "IR/InstVisitor.h" export * }
+  module IR_Intrinsics { header "IR/Intrinsics.h" export * }
+  module IR_IntrinsicInst { header "IR/IntrinsicInst.h" export * }
+  module IR_PatternMatch { header "IR/PatternMatch.h" export * }
+  module IR_Statepoint { header "IR/Statepoint.h" export * }
+
+  export *
+}
+
 module LLVM_IR {
   requires cplusplus
 
   umbrella "IR"
   module * { export * }
 
   // These are intended for (repeated) textual inclusion.
   textual header "IR/DebugInfoFlags.def"