================
@@ -1114,6 +1114,198 @@ void CIRGenFunction::emitAtomicExprWithMemOrder(
emitAtomicOpFn);
}
+static RValue emitLibCallForAtomicExpr(CIRGenFunction &cgf, AtomicExpr *e,
+ Address atomicPtr, Address dest,
+ Address val1, uint64_t atomicTySize,
+ QualType resultTy) {
+ mlir::Location loc = cgf.getLoc(e->getSourceRange());
+
+ llvm::SmallVector<mlir::Value> args;
+ // For non-optimized library calls, the size is the first parameter.
+ args.push_back(cgf.getBuilder().getConstInt(loc, cgf.sizeTy, atomicTySize));
+
+ // The atomic address is the second parameter.
+ // The OpenCL atomic library functions only accept pointer arguments to
+ // generic address space.
+ auto castToGenericAddrSpace = [&](mlir::Value v, QualType pt) {
+ if (!e->isOpenCL())
+ return v;
+
+ assert(!cir::MissingFeatures::openCL());
+ cgf.cgm.errorNYI(loc, "emitLibCallForAtomicExpr: openCL");
+ return v;
+ };
+ args.push_back(cgf.getBuilder().createPtrBitcast(
----------------
Lancern wrote:
The bitcast is indeed needed as the library function always expects a `void *`.
Moved the bitcast into `castToGenericAddrSpace`.
https://github.com/llvm/llvm-project/pull/202671
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