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Oct 9, 2024
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AMDGPU: Add baseline tests for gep flag handling #110814

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197 changes: 197 additions & 0 deletions llvm/test/CodeGen/AMDGPU/gep-flags-stack-offsets.ll
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Original file line number Diff line number Diff line change
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; gfx8 required knowing no overflow happened to fold the addressing mode
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 < %s | FileCheck -check-prefix=GFX8 %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefix=GFX9 %s

define void @gep_noflags_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_noflags_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_noflags_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_inbounds_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_inbounds_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_inbounds_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr inbounds [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_nuw_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_nuw_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_nuw_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr nuw [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_nusw_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_nusw_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_nusw_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr nusw [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_inbounds_nuw_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_inbounds_nuw_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_inbounds_nuw_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr inbounds nuw [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_nusw_nuw_alloca(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_nusw_nuw_alloca:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshlrev_b32_e32 v0, 2, v0
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_nusw_nuw_alloca:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_lshl_add_u32 v0, v0, 2, v2
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [32 x i32], addrspace(5)
%gep0 = getelementptr nusw nuw [32 x i32], ptr addrspace(5) %alloca, i32 0, i32 %idx
%gep1 = getelementptr i32, ptr addrspace(5) %gep0, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1
ret void
}

define void @gep_inbounds_nuw_alloca_nonpow2_scale(i32 %idx, i32 %val) #0 {
; GFX8-LABEL: gep_inbounds_nuw_alloca_nonpow2_scale:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: s_movk_i32 s4, 0x84
; GFX8-NEXT: v_mul_lo_u32 v0, v0, s4
; GFX8-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX8-NEXT: v_add_u32_e32 v0, vcc, v2, v0
; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v0
; GFX8-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen
; GFX8-NEXT: s_waitcnt vmcnt(0)
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: gep_inbounds_nuw_alloca_nonpow2_scale:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: s_movk_i32 s4, 0x84
; GFX9-NEXT: v_mul_lo_u32 v0, v0, s4
; GFX9-NEXT: v_lshrrev_b32_e64 v2, 6, s32
; GFX9-NEXT: v_add_u32_e32 v0, v2, v0
; GFX9-NEXT: buffer_store_dword v1, v0, s[0:3], 0 offen offset:16
; GFX9-NEXT: s_waitcnt vmcnt(0)
; GFX9-NEXT: s_setpc_b64 s[30:31]
%alloca = alloca [5 x [33 x i32]], align 4, addrspace(5)
%gep1 = getelementptr inbounds nuw [5 x [33 x i32]], ptr addrspace(5) %alloca, i32 0, i32 %idx, i32 4
store volatile i32 %val, ptr addrspace(5) %gep1, align 4
ret void
}

attributes #0 = { nounwind }
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