mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
55f6e54b27
Without a memory operand, mayLoad or mayStore instructions are treated as hasUnorderedMemRef, which results in much worse scheduling. We really should have a verifier check that any non-side effecting mayLoad or mayStore has a memory operand. There are a few instructions (interp and images) which I'm not sure what / where to add these. llvm-svn: 246356
53 lines
2.2 KiB
LLVM
53 lines
2.2 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI %s
|
|
|
|
; The memory operand was dropped from the buffer_load_dword_offset
|
|
; when replaced with the addr64 during operand legalization, resulting
|
|
; in the global loads not being scheduled together.
|
|
|
|
; GCN-LABEL: {{^}}reschedule_global_load_lds_store:
|
|
; GCN: buffer_load_dword
|
|
; GCN: buffer_load_dword
|
|
; GCN: ds_write_b32
|
|
; GCN: ds_write_b32
|
|
; GCN: s_endpgm
|
|
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 {
|
|
entry:
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #1
|
|
%idx = shl i32 %tid, 2
|
|
%gep0 = getelementptr i32, i32 addrspace(1)* %gptr0, i32 %idx
|
|
%gep1 = getelementptr i32, i32 addrspace(1)* %gptr1, i32 %idx
|
|
%gep2 = getelementptr i32, i32 addrspace(3)* %lptr, i32 %tid
|
|
%cmp0 = icmp eq i32 %c, 0
|
|
br i1 %cmp0, label %for.body, label %exit
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ]
|
|
%gptr0.phi = phi i32 addrspace(1)* [ %gep0, %entry ], [ %gep0.inc, %for.body ]
|
|
%gptr1.phi = phi i32 addrspace(1)* [ %gep1, %entry ], [ %gep1.inc, %for.body ]
|
|
%lptr0.phi = phi i32 addrspace(3)* [ %gep2, %entry ], [ %gep2.inc, %for.body ]
|
|
%lptr1 = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 1
|
|
%val0 = load i32, i32 addrspace(1)* %gep0
|
|
store i32 %val0, i32 addrspace(3)* %lptr0.phi
|
|
%val1 = load i32, i32 addrspace(1)* %gep1
|
|
store i32 %val1, i32 addrspace(3)* %lptr1
|
|
%gep0.inc = getelementptr i32, i32 addrspace(1)* %gptr0.phi, i32 4
|
|
%gep1.inc = getelementptr i32, i32 addrspace(1)* %gptr1.phi, i32 4
|
|
%gep2.inc = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 4
|
|
%i.inc = add nsw i32 %i, 1
|
|
%cmp1 = icmp ne i32 %i, 256
|
|
br i1 %cmp1, label %for.body, label %exit
|
|
|
|
exit: ; preds = %for.body, %entry
|
|
ret void
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare i32 @llvm.r600.read.tidig.x() #1
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare i32 @llvm.r600.read.tgid.x() #1
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { noduplicate nounwind }
|