[clang] [Clang][OpenCL][AMDGPU] Allow a kernel to call another kernel (PR #115821)

[Aniket Lal via cfe-commits]

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@@ -127,7 +127,10 @@ static const BlockExpr *getBlockExpr(const Expr *E) {
 void CGOpenCLRuntime::recordBlockInfo(const BlockExpr *E,
                                       llvm::Function *InvokeF,
                                       llvm::Value *Block, llvm::Type *BlockTy) {
-  assert(!EnqueuedBlockMap.contains(E) && "Block expression emitted twice");
+
+  // FIXME: Since OpenCL Kernels are emitted twice (kernel version and stub
+  // version), its constituent BlockExpr will also be emitted twice.
+  // assert(!EnqueuedBlockMap.contains(E) && "Block expression emitted twice");
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lalaniket8 wrote:

Added support to distinguish between BlockExpr emitted from Kernel and its device variant by adding a relevant flag in EnqueuedBlockInfo. Updated assert to look at this flag.

https://github.com/llvm/llvm-project/pull/115821