[PATCH] D94973: [clang][OpenMP] Use OpenMPIRBuilder for workshare loops.

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert added a comment.

This seems sensible. The clang parts look OK but I haven't thought everything through to the last detail. I left some questions below, I guess we can go down this road and slowly transition to the new scheme.



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Comment at: clang/lib/AST/Stmt.cpp:1275
-                                                ->isScalarType())) &&
-        "captures by copy are expected to have a scalar type!");
     break;
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Why does this have to go? Is that avoidable?


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Comment at: clang/lib/Sema/SemaExpr.cpp:17274
+  if (IsTopScope && Kind != Sema::TryCapture_Implicit) {
+    ByRef = (Kind == Sema::TryCapture_ExplicitByRef);
+  } else if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP) {
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This doesn't impact anyone else negatively? I don't understand why we need this now.


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Comment at: llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h:305
 
+  /// Modifies the canonical loop to be a workshare loop.
+  CanonicalLoopInfo *createWorkshareLoop(const LocationDescription &Loc,
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Nit: Add the argument description (from above).


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Comment at: llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h:865
 
+  Function *getFunction() const { return Header->getParent(); }
+
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Nit: documentation, also above.


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Comment at: llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp:986
+  if (BodyGenCB)
+    BodyGenCB(CL->getBodyIP(), CL->getIndVar());
 
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I'm unsure I understand when it would make sense to not have a body generator.


Repository:
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https://reviews.llvm.org/D94973