| Matt Arsenault | 5c004a7 | 2015-08-29 06:48:46 +0000 | [diff] [blame^] | 1 | ; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI %s |
| 2 | |
| 3 | ; The memory operand was dropped from the buffer_load_dword_offset |
| 4 | ; when replaced with the addr64 during operand legalization, resulting |
| 5 | ; in the global loads not being scheduled together. |
| 6 | |
| 7 | ; GCN-LABEL: {{^}}reschedule_global_load_lds_store: |
| 8 | ; GCN: buffer_load_dword |
| 9 | ; GCN: buffer_load_dword |
| 10 | ; GCN: ds_write_b32 |
| 11 | ; GCN: ds_write_b32 |
| 12 | ; GCN: s_endpgm |
| 13 | define void @reschedule_global_load_lds_store(i32 addrspace(1)* noalias %gptr0, i32 addrspace(1)* noalias %gptr1, i32 addrspace(3)* noalias %lptr, i32 %c) #0 { |
| 14 | entry: |
| 15 | %tid = tail call i32 @llvm.r600.read.tidig.x() #1 |
| 16 | %idx = shl i32 %tid, 2 |
| 17 | %gep0 = getelementptr i32, i32 addrspace(1)* %gptr0, i32 %idx |
| 18 | %gep1 = getelementptr i32, i32 addrspace(1)* %gptr1, i32 %idx |
| 19 | %gep2 = getelementptr i32, i32 addrspace(3)* %lptr, i32 %tid |
| 20 | %cmp0 = icmp eq i32 %c, 0 |
| 21 | br i1 %cmp0, label %for.body, label %exit |
| 22 | |
| 23 | for.body: ; preds = %for.body, %entry |
| 24 | %i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ] |
| 25 | %gptr0.phi = phi i32 addrspace(1)* [ %gep0, %entry ], [ %gep0.inc, %for.body ] |
| 26 | %gptr1.phi = phi i32 addrspace(1)* [ %gep1, %entry ], [ %gep1.inc, %for.body ] |
| 27 | %lptr0.phi = phi i32 addrspace(3)* [ %gep2, %entry ], [ %gep2.inc, %for.body ] |
| 28 | %lptr1 = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 1 |
| 29 | %val0 = load i32, i32 addrspace(1)* %gep0 |
| 30 | store i32 %val0, i32 addrspace(3)* %lptr0.phi |
| 31 | %val1 = load i32, i32 addrspace(1)* %gep1 |
| 32 | store i32 %val1, i32 addrspace(3)* %lptr1 |
| 33 | %gep0.inc = getelementptr i32, i32 addrspace(1)* %gptr0.phi, i32 4 |
| 34 | %gep1.inc = getelementptr i32, i32 addrspace(1)* %gptr1.phi, i32 4 |
| 35 | %gep2.inc = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 4 |
| 36 | %i.inc = add nsw i32 %i, 1 |
| 37 | %cmp1 = icmp ne i32 %i, 256 |
| 38 | br i1 %cmp1, label %for.body, label %exit |
| 39 | |
| 40 | exit: ; preds = %for.body, %entry |
| 41 | ret void |
| 42 | } |
| 43 | |
| 44 | ; Function Attrs: nounwind readnone |
| 45 | declare i32 @llvm.r600.read.tidig.x() #1 |
| 46 | |
| 47 | ; Function Attrs: nounwind readnone |
| 48 | declare i32 @llvm.r600.read.tgid.x() #1 |
| 49 | |
| 50 | attributes #0 = { nounwind } |
| 51 | attributes #1 = { nounwind readnone } |
| 52 | attributes #2 = { noduplicate nounwind } |