[PATCH] D153883: [Clang][OpenMP] Delay emission of __kmpc_alloc_shared for escaped VLAs

Alexey Bataev via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Jun 30 10:53:27 PDT 2023


ABataev added inline comments.


================
Comment at: clang/lib/CodeGen/CodeGenFunction.cpp:2168
+    ElementType = VLAType->getElementType();
+    llvm::Value *VLASize = VLASizeMap[VLAType->getSizeExpr()];
+    if (!VLASize)
----------------
Use VLASizeMap.find() instead


================
Comment at: clang/lib/CodeGen/CodeGenFunction.h:2806
+  /// Return true if all the emissions for the VLA size have occured.
+  bool hasVLASize(const VariableArrayType *type);
+
----------------
doru1004 wrote:
> ABataev wrote:
> > doru1004 wrote:
> > > ABataev wrote:
> > > > 1. Is it possible that VariableArrayType does not have VLA size?
> > > > 2. Fix param name
> > > @ABataev How would point 1 happen?
> > You're adding a function that checks if VLA type has VLA size. I'm asking, if it is possible for VLA type to not have VLA size at all? Why do you need this function?
> This function checks if the expression of the size of the VLA has already been emitted and can be used.
Why the emission of VLA size can be delayed?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D153883/new/

https://reviews.llvm.org/D153883



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