1 ; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck %s
3 ; On Southern Islands GPUs the local address space(3) uses 32-bit pointers and
4 ; the global address space(1) uses 64-bit pointers. These tests check to make sure
5 ; the correct pointer size is used for the local address space.
7 ; The e{{32|64}} suffix on the instructions refers to the encoding size and not
8 ; the size of the operands. The operand size is denoted in the instruction name.
9 ; Instructions with B32, U32, and I32 in their name take 32-bit operands, while
10 ; instructions with B64, U64, and I64 take 64-bit operands.
12 ; CHECK-LABEL: @local_address_load
13 ; CHECK: V_MOV_B32_e{{32|64}} [[PTR:v[0-9]]]
14 ; CHECK: DS_READ_B32 [[PTR]]
15 define void @local_address_load(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
17 %0 = load i32 addrspace(3)* %in
18 store i32 %0, i32 addrspace(1)* %out
22 ; CHECK-LABEL: @local_address_gep
23 ; CHECK: V_ADD_I32_e{{32|64}} [[PTR:v[0-9]]]
24 ; CHECK: DS_READ_B32 [[PTR]]
25 define void @local_address_gep(i32 addrspace(1)* %out, i32 addrspace(3)* %in, i32 %offset) {
27 %0 = getelementptr i32 addrspace(3)* %in, i32 %offset
28 %1 = load i32 addrspace(3)* %0
29 store i32 %1, i32 addrspace(1)* %out
33 ; CHECK-LABEL: @local_address_gep_const_offset
34 ; CHECK: V_ADD_I32_e{{32|64}} [[PTR:v[0-9]]]
35 ; CHECK: DS_READ_B32 [[PTR]]
36 define void @local_address_gep_const_offset(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
38 %0 = getelementptr i32 addrspace(3)* %in, i32 1
39 %1 = load i32 addrspace(3)* %0
40 store i32 %1, i32 addrspace(1)* %out
44 ; CHECK-LABEL: @null_32bit_lds_ptr:
46 ; CHECK-NOT: V_CMP_NE_I32
47 ; CHECK: V_CNDMASK_B32
48 define void @null_32bit_lds_ptr(i32 addrspace(1)* %out, i32 addrspace(3)* %lds) nounwind {
49 %cmp = icmp ne i32 addrspace(3)* %lds, null
50 %x = select i1 %cmp, i32 123, i32 456
51 store i32 %x, i32 addrspace(1)* %out
55 ; CHECK-LABEL: @mul_32bit_ptr:
57 ; CHECK-NEXT: V_ADD_I32_e32
58 ; CHECK-NEXT: DS_READ_B32
59 define void @mul_32bit_ptr(float addrspace(1)* %out, [3 x float] addrspace(3)* %lds, i32 %tid) {
60 %ptr = getelementptr [3 x float] addrspace(3)* %lds, i32 %tid, i32 0
61 %val = load float addrspace(3)* %ptr
62 store float %val, float addrspace(1)* %out
66 @g_lds = addrspace(3) global float zeroinitializer, align 4
68 ; CHECK-LABEL: @infer_ptr_alignment_global_offset:
69 ; CHECK: V_MOV_B32_e32 [[REG:v[0-9]+]], 0
70 ; CHECK: DS_READ_B32 v{{[0-9]+}}, 0, [[REG]]
71 define void @infer_ptr_alignment_global_offset(float addrspace(1)* %out, i32 %tid) {
72 %val = load float addrspace(3)* @g_lds
73 store float %val, float addrspace(1)* %out