You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.7 KiB
50 lines
1.7 KiB
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
|
|
|
|
; Make sure that m0 is not reinitialized in the loop.
|
|
|
|
; GCN-LABEL: {{^}}copy_local_to_global_loop_m0_init:
|
|
; GCN: s_cbranch_scc1 BB0_3
|
|
|
|
; Initialize in preheader
|
|
; GCN: s_mov_b32 m0, -1
|
|
|
|
; GCN: BB0_2:
|
|
; GCN-NOT: m0
|
|
; GCN: ds_read_b32
|
|
; GCN-NOT: m0
|
|
; GCN: buffer_store_dword
|
|
|
|
; GCN: s_cbranch_scc0 BB0_2
|
|
|
|
; GCN: BB0_3:
|
|
; GCN-NEXT: s_endpgm
|
|
define amdgpu_kernel void @copy_local_to_global_loop_m0_init(i32 addrspace(1)* noalias nocapture %out, i32 addrspace(3)* noalias nocapture readonly %in, i32 %n) #0 {
|
|
bb:
|
|
%tmp = icmp sgt i32 %n, 0
|
|
br i1 %tmp, label %.lr.ph.preheader, label %._crit_edge
|
|
|
|
.lr.ph.preheader: ; preds = %bb
|
|
br label %.lr.ph
|
|
|
|
._crit_edge.loopexit: ; preds = %.lr.ph
|
|
br label %._crit_edge
|
|
|
|
._crit_edge: ; preds = %._crit_edge.loopexit, %bb
|
|
ret void
|
|
|
|
.lr.ph: ; preds = %.lr.ph, %.lr.ph.preheader
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph.preheader ]
|
|
%i.01 = phi i32 [ %tmp4, %.lr.ph ], [ 0, %.lr.ph.preheader ]
|
|
%tmp1 = getelementptr inbounds i32, i32 addrspace(3)* %in, i32 %i.01
|
|
%tmp2 = load i32, i32 addrspace(3)* %tmp1, align 4
|
|
%tmp3 = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %indvars.iv
|
|
store i32 %tmp2, i32 addrspace(1)* %tmp3, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%tmp4 = add nuw nsw i32 %i.01, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %._crit_edge.loopexit, label %.lr.ph
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|