1 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
3 ; GCN-LABEL: {{^}}load_idx_idy:
5 ; GCN: s_load_dword [[ID_XY:s[0-9]+]], s[4:5], 0x4
7 ; GCN: s_lshr_b32 [[ID_Y:s[0-9]+]], [[ID_XY]], 16
8 ; GCN: s_add_i32 [[ID_SUM:s[0-9]+]], [[ID_Y]], [[ID_XY]]
9 ; GCN: s_and_b32 s{{[0-9]+}}, [[ID_SUM]], 0xffff
10 define protected amdgpu_kernel void @load_idx_idy(i32 addrspace(1)* %out) {
12 %disp = tail call align 4 dereferenceable(64) i8 addrspace(4)* @llvm.amdgcn.dispatch.ptr()
13 %gep_x = getelementptr i8, i8 addrspace(4)* %disp, i64 4
14 %gep_x.cast = bitcast i8 addrspace(4)* %gep_x to i16 addrspace(4)*
15 %id_x = load i16, i16 addrspace(4)* %gep_x.cast, align 4, !invariant.load !0 ; load workgroup size x
16 %gep_y = getelementptr i8, i8 addrspace(4)* %disp, i64 6
17 %gep_y.cast = bitcast i8 addrspace(4)* %gep_y to i16 addrspace(4)*
18 %id_y = load i16, i16 addrspace(4)* %gep_y.cast, align 2, !invariant.load !0 ; load workgroup size y
19 %add = add nuw nsw i16 %id_y, %id_x
20 %conv = zext i16 %add to i32
21 store i32 %conv, i32 addrspace(1)* %out, align 4
25 ; A little more complicated case where more sub-dword loads could be coalesced
26 ; if they are not widening earlier.
27 ; GCN-LABEL: {{^}}load_4i16:
28 ; GCN: s_load_dwordx2 s{{\[}}[[D0:[0-9]+]]:[[D1:[0-9]+]]{{\]}}, s[4:5], 0x4
29 ; GCN-NOT: s_load_dword {{s[0-9]+}}, s[4:5], 0x4
30 ; GCN-DAG: s_lshr_b32 s{{[0-9]+}}, s[[D0]], 16
31 ; GCN-DAG: s_lshr_b32 s{{[0-9]+}}, s[[D1]], 16
33 define protected amdgpu_kernel void @load_4i16(i32 addrspace(1)* %out) {
35 %disp = tail call align 4 dereferenceable(64) i8 addrspace(4)* @llvm.amdgcn.dispatch.ptr()
36 %gep_x = getelementptr i8, i8 addrspace(4)* %disp, i64 4
37 %gep_x.cast = bitcast i8 addrspace(4)* %gep_x to i16 addrspace(4)*
38 %id_x = load i16, i16 addrspace(4)* %gep_x.cast, align 4, !invariant.load !0 ; load workgroup size x
39 %gep_y = getelementptr i8, i8 addrspace(4)* %disp, i64 6
40 %gep_y.cast = bitcast i8 addrspace(4)* %gep_y to i16 addrspace(4)*
41 %id_y = load i16, i16 addrspace(4)* %gep_y.cast, align 2, !invariant.load !0 ; load workgroup size y
42 %gep_z = getelementptr i8, i8 addrspace(4)* %disp, i64 8
43 %gep_z.cast = bitcast i8 addrspace(4)* %gep_z to i16 addrspace(4)*
44 %id_z = load i16, i16 addrspace(4)* %gep_z.cast, align 4, !invariant.load !0 ; load workgroup size x
45 %gep_w = getelementptr i8, i8 addrspace(4)* %disp, i64 10
46 %gep_w.cast = bitcast i8 addrspace(4)* %gep_w to i16 addrspace(4)*
47 %id_w = load i16, i16 addrspace(4)* %gep_w.cast, align 2, !invariant.load !0 ; load workgroup size y
48 %add = add nuw nsw i16 %id_y, %id_x
49 %add2 = add nuw nsw i16 %id_z, %id_w
50 %add3 = add nuw nsw i16 %add, %add2
51 %conv = zext i16 %add3 to i32
52 store i32 %conv, i32 addrspace(1)* %out, align 4
56 declare i8 addrspace(4)* @llvm.amdgcn.dispatch.ptr()