rampitec wrote: > How does this work in a case like this? > > ``` > call void @llvm.amdgcn.raw.buffer.load.lds(<4 x i32> %rsrc, ptr addrspace(3) > @lds.3, i32 4, i32 0, i32 0, i32 0, i32 0) > call void @llvm.amdgcn.raw.buffer.load.lds(<4 x i32> %rsrc, ptr addrspace(3) > %ptr, i32 4, i32 0, i32 0, i32 0, i32 0) > %val.3 = load float, ptr addrspace(3) @lds.3, align 4 > ``` > > i.e. > > * store to known lds address `@lds.3` (this will use slot 0 and another > slot e.g. slot 3?) > > * store to unknown lds address (this will use slot 0?) > > * load from known lds address `@lds.3` (this will use slot 3?)
It does not know the pointer, so it uses default slot 0 and waits till 0. I have to tell anyone interested here: before I even wrote this code it didn't know of the dependency and did not wait for anything at all. Everyone was happy. https://github.com/llvm/llvm-project/pull/74537 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
