1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
4 declare i32 @llvm.r600.read.tidig.x() #1
6 ; FIXME: This currently doesn't do a great job of clustering the
7 ; loads, which end up with extra moves between them. Right now, it
8 ; seems the only things areLoadsFromSameBasePtr is accomplishing is
9 ; ordering the loads so that the lower address loads come first.
11 ; FUNC-LABEL: {{^}}cluster_global_arg_loads:
12 ; SI-DAG: buffer_load_dword [[REG0:v[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0{{$}}
13 ; SI-DAG: buffer_load_dword [[REG1:v[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0 offset:4
14 ; SI: buffer_store_dword [[REG0]]
15 ; SI: buffer_store_dword [[REG1]]
16 define void @cluster_global_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %ptr) #0 {
17 %load0 = load i32, i32 addrspace(1)* %ptr, align 4
18 %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 1
19 %load1 = load i32, i32 addrspace(1)* %gep, align 4
20 store i32 %load0, i32 addrspace(1)* %out0, align 4
21 store i32 %load1, i32 addrspace(1)* %out1, align 4
25 ; Test for a crach in SIInstrInfo::areLoadsFromSameBasePtr() when checking
26 ; an MUBUF load which does not have a vaddr operand.
27 ; FUNC-LABEL: {{^}}same_base_ptr_crash:
28 ; SI: buffer_load_dword
29 ; SI: buffer_load_dword
30 define void @same_base_ptr_crash(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %offset) {
32 %out1 = getelementptr i32, i32 addrspace(1)* %out, i32 %offset
33 %tmp0 = load i32, i32 addrspace(1)* %out
34 %tmp1 = load i32, i32 addrspace(1)* %out1
35 %tmp2 = add i32 %tmp0, %tmp1
36 store i32 %tmp2, i32 addrspace(1)* %out
40 attributes #0 = { nounwind }
41 attributes #1 = { nounwind readnone }