[clang] [llvm] [SPIRV][RFC] Rework / extend support for memory scopes (PR #106429)
Alex Voicu via cfe-commits
cfe-commits at lists.llvm.org
Wed Sep 18 12:14:22 PDT 2024
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@@ -766,8 +766,19 @@ static void EmitAtomicOp(CodeGenFunction &CGF, AtomicExpr *Expr, Address Dest,
// LLVM atomic instructions always have synch scope. If clang atomic
// expression has no scope operand, use default LLVM synch scope.
if (!ScopeModel) {
+ llvm::SyncScope::ID SS;
+ if (CGF.getLangOpts().OpenCL)
+ // OpenCL approach is: "The functions that do not have memory_scope
+ // argument have the same semantics as the corresponding functions with
+ // the memory_scope argument set to memory_scope_device." See ref.:
+ // https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_C.html#atomic-functions
+ SS = CGF.getTargetHooks().getLLVMSyncScopeID(CGF.getLangOpts(),
+ SyncScope::OpenCLDevice,
+ Order, CGF.getLLVMContext());
+ else
+ SS = CGF.getLLVMContext().getOrInsertSyncScopeID("");
----------------
AlexVlx wrote:
Done.
https://github.com/llvm/llvm-project/pull/106429
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