1fd1f4c0e1
Convert !amdgpu.last.use metadata into MachineMemOperand for last use and handle it in SIMemoryLegalizer similar to nontemporal and volatile.
84 lines
3.3 KiB
LLVM
84 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 < %s | FileCheck --check-prefixes=GFX12,GFX12-WGP %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=+cumode < %s | FileCheck --check-prefixes=GFX12,GFX12-CU %s
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define amdgpu_kernel void @flat_last_use_load_0(ptr %in, ptr %out) {
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; GFX12-LABEL: flat_last_use_load_0:
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; GFX12: ; %bb.0: ; %entry
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; GFX12-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
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; GFX12-NEXT: s_wait_kmcnt 0x0
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; GFX12-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
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; GFX12-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_LU
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; GFX12-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
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; GFX12-NEXT: s_wait_loadcnt_dscnt 0x0
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; GFX12-NEXT: flat_store_b32 v[0:1], v2
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; GFX12-NEXT: s_endpgm
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entry:
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%val = load i32, ptr %in, align 4, !amdgpu.last.use !{}
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store i32 %val, ptr %out
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ret void
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}
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define amdgpu_kernel void @flat_last_use_load_1(ptr %in, ptr %out) {
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; GFX12-LABEL: flat_last_use_load_1:
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; GFX12: ; %bb.0: ; %entry
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; GFX12-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
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; GFX12-NEXT: v_lshlrev_b32_e32 v0, 2, v0
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; GFX12-NEXT: s_wait_kmcnt 0x0
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; GFX12-NEXT: s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
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; GFX12-NEXT: v_add_co_u32 v0, s0, s0, v0
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; GFX12-NEXT: v_add_co_ci_u32_e64 v1, null, s1, 0, s0
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; GFX12-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_LU
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; GFX12-NEXT: v_dual_mov_b32 v1, s3 :: v_dual_mov_b32 v0, s2
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; GFX12-NEXT: s_wait_loadcnt_dscnt 0x0
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; GFX12-NEXT: flat_store_b32 v[0:1], v2
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; GFX12-NEXT: s_endpgm
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entry:
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%val.gep = getelementptr inbounds i32, ptr %in, i32 %tid
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%val = load i32, ptr %val.gep, align 4, !amdgpu.last.use !{}
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store i32 %val, ptr %out
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ret void
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}
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define amdgpu_kernel void @flat_last_use_and_volatile_load(ptr %in, ptr %out) {
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; GFX12-LABEL: flat_last_use_and_volatile_load:
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; GFX12: ; %bb.0: ; %entry
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; GFX12-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
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; GFX12-NEXT: s_wait_kmcnt 0x0
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; GFX12-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
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; GFX12-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_BYPASS scope:SCOPE_SYS
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; GFX12-NEXT: s_wait_loadcnt 0x0
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; GFX12-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
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; GFX12-NEXT: s_wait_dscnt 0x0
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; GFX12-NEXT: flat_store_b32 v[0:1], v2
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; GFX12-NEXT: s_endpgm
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entry:
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%val = load volatile i32, ptr %in, align 4, !amdgpu.last.use !{}
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store i32 %val, ptr %out
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ret void
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}
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define amdgpu_kernel void @flat_last_use_and_nontemporal_load(ptr %in, ptr %out) {
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; GFX12-LABEL: flat_last_use_and_nontemporal_load:
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; GFX12: ; %bb.0: ; %entry
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; GFX12-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
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; GFX12-NEXT: s_wait_kmcnt 0x0
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; GFX12-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
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; GFX12-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_LU
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; GFX12-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
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; GFX12-NEXT: s_wait_loadcnt_dscnt 0x0
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; GFX12-NEXT: flat_store_b32 v[0:1], v2
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; GFX12-NEXT: s_endpgm
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entry:
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%val = load i32, ptr %in, align 4, !amdgpu.last.use !{}, !nontemporal !0
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store i32 %val, ptr %out
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ret void
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}
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!0 = !{i32 1}
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declare i32 @llvm.amdgcn.workitem.id.x()
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;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
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; GFX12-CU: {{.*}}
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; GFX12-WGP: {{.*}}
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