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llvm-project/llvm/test/CodeGen/AMDGPU/loop-prefetch.ll

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; RUN: llc -march=amdgcn -mcpu=gfx1030 -verify-machineinstrs -asm-verbose=0 < %s | FileCheck --check-prefixes=GCN,GFX10,GFX10-ASM %s
; RUN: llc -march=amdgcn -mcpu=gfx1030 -verify-machineinstrs < %s -filetype=obj | llvm-objdump -d --arch-name=amdgcn --mcpu=gfx1030 - | FileCheck --check-prefixes=GCN,GFX10,GFX10-DIS %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck --check-prefix=GFX8 %s
; GFX8-NOT: s_inst_prefetch
; GFX8-NOT: .palign 6
; GCN-LABEL: test_loop_64
; GFX10: s_movk_i32 s{{[0-9]+}}, 0x400
; GFX10-DIS-NEXT: {{^$}}
; GFX10-ASM-NEXT: [[L1:BB[0-9_]+]]:
; GFX10-DIS-NEXT: <[[L1:BB[0-9_]+]]>:
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc0 [[L1]]
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_64(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1: ; preds = %bb2
ret void
bb2: ; preds = %bb2, %bb
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb2 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp3, label %bb1, label %bb2
}
; GCN-LABEL: test_loop_128
; GFX10: s_movk_i32 s{{[0-9]+}}, 0x400
; GFX10-ASM-NEXT: .p2align 6
; GFX10-DIS-NEXT: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L1:BB[0-9_]+]]:
; GFX10-DIS: <[[L1:BB[0-9_]+]]>:
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc0 [[L1]]
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_128(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1: ; preds = %bb2
ret void
bb2: ; preds = %bb2, %bb
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb2 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp3, label %bb1, label %bb2
}
; GCN-LABEL: test_loop_192
; GFX10: s_movk_i32 s{{[0-9]+}}, 0x400
; GFX10-NEXT: s_inst_prefetch 0x1
; GFX10-ASM-NEXT: .p2align 6
; GFX10-DIS-NEXT: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L1:BB[0-9_]+]]:
; GFX10-DIS: <[[L1:BB[0-9_]+]]>:
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc0 [[L1]]
; GFX10-NEXT: s_inst_prefetch 0x2
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_192(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1: ; preds = %bb2
ret void
bb2: ; preds = %bb2, %bb
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb2 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp3, label %bb1, label %bb2
}
; GCN-LABEL: test_loop_256
; GFX10: s_movk_i32 s{{[0-9]+}}, 0x400
; GFX10-DIS-NEXT: {{^$}}
; GFX10-ASM-NEXT: [[L1:BB[0-9_]+]]:
; GFX10-DIS-NEXT: <[[L1:BB[0-9_]+]]>:
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc0 [[L1]]
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_256(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1: ; preds = %bb2
ret void
bb2: ; preds = %bb2, %bb
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb2 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp3, label %bb1, label %bb2
}
; GCN-LABEL: test_loop_prefetch_inner_outer
; GFX10: s_inst_prefetch 0x1
; GFX10-ASM-NEXT: .p2align 6
; GFX10-DIS-NEXT: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L1:BB[0-9_]+]]:
; GFX10-DIS: <[[L1:BB[0-9_]+]]>:
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: .p2align 6
; GFX10-DIS: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L2:BB[0-9_]+]]:
; GFX10-DIS: <[[L2:BB[0-9_]+]]>:
; GFX10-NOT: s_inst_prefetch
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc{{[01]}} [[L2]]
; GFX10-NOT: s_inst_prefetch
; GFX10: s_cbranch_scc{{[01]}} [[L1]]
; GFX10-NEXT: s_inst_prefetch 0x2
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_prefetch_inner_outer(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1:
ret void
bb2:
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb4 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
br label %bb3
bb3:
%tmp4 = phi i32 [ 0, %bb2 ], [ %tmp5, %bb3 ]
%tmp5 = add nuw nsw i32 %tmp4, 1
%tmp6 = icmp eq i32 %tmp5, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp6, label %bb4, label %bb3
bb4:
br i1 %tmp3, label %bb1, label %bb2
}
; GCN-LABEL: test_loop_prefetch_inner_outer_noouter
; GFX10-NOT: .p2align 6
; GFX10-NOT: s_nop
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L0:BB[0-9_]+]]:
; GFX10-DIS: <[[L0:BB[0-9_]+]]>:
; GFX10: s_inst_prefetch 0x1
; GFX10-ASM-NEXT: .p2align 6
; GFX10-DIS-NEXT: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L1:BB[0-9_]+]]:
; GFX10-DIS: <[[L1:BB[0-9_]+]]>:
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: .p2align 6
; GFX10-DIS: s_nop 0
; GFX10-NOT: s_inst_prefetch
; GFX10-ASM: [[L2:BB[0-9_]+]]:
; GFX10-DIS: <[[L2:BB[0-9_]+]]>:
; GFX10-NOT: s_inst_prefetch
; GFX10: s_sleep 0
; GFX10: s_cbranch_scc{{[01]}} [[L2]]
; GFX10-NOT: s_inst_prefetch
; GFX10: s_cbranch_scc{{[01]}} [[L1]]
; GFX10-NEXT: s_inst_prefetch 0x2
; GFX10: s_cbranch_scc{{[01]}} [[L0]]
; GFX10-NEXT: s_endpgm
define amdgpu_kernel void @test_loop_prefetch_inner_outer_noouter(i32 addrspace(1)* nocapture %arg) {
bb:
br label %bb2
bb1:
ret void
bb2:
%tmp1 = phi i32 [ 0, %bb ], [ %tmp2, %bb6 ]
%tmp2 = add nuw nsw i32 %tmp1, 1
%tmp3 = icmp eq i32 %tmp2, 1024
br label %bb3
bb3:
%tmp4 = phi i32 [ 0, %bb2 ], [ %tmp5, %bb5 ]
%tmp5 = add nuw nsw i32 %tmp4, 1
%tmp6 = icmp eq i32 %tmp5, 1024
br label %bb4
bb4:
%tmp7 = phi i32 [ 0, %bb3 ], [ %tmp8, %bb4 ]
%tmp8 = add nuw nsw i32 %tmp7, 1
%tmp9 = icmp eq i32 %tmp8, 1024
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp9, label %bb5, label %bb4
bb5:
br i1 %tmp6, label %bb6, label %bb3
bb6:
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
tail call void @llvm.amdgcn.s.sleep(i32 0)
br i1 %tmp3, label %bb1, label %bb2
}
declare void @llvm.amdgcn.s.sleep(i32)
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