1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 %s
3
4; Make sure that AMDGPUCodeGenPrepare introduces mul24 intrinsics
5; after SLSR, as the intrinsics would interfere. It's unclear if these
6; should be introduced before LSR or not. It seems to help in some
7; cases, and hurt others.
8
9define void @lsr_order_mul24_0(i32 %arg, i32 %arg2, i32 %arg6, i32 %arg13, i32 %arg16) #0 {
10; GFX9-LABEL: lsr_order_mul24_0:
11; GFX9:       ; %bb.0: ; %bb
12; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
13; GFX9-NEXT:    global_load_dword v5, v[0:1], off
14; GFX9-NEXT:    v_and_b32_e32 v2, 0xffffff, v2
15; GFX9-NEXT:    v_sub_u32_e32 v4, v4, v1
16; GFX9-NEXT:    s_mov_b64 s[4:5], 0
17; GFX9-NEXT:    s_waitcnt vmcnt(0)
18; GFX9-NEXT:    ds_write_b32 v0, v5
19; GFX9-NEXT:  BB0_1: ; %bb23
20; GFX9-NEXT:    ; =>This Inner Loop Header: Depth=1
21; GFX9-NEXT:    v_mul_u32_u24_e32 v5, v0, v2
22; GFX9-NEXT:    v_add_u32_e32 v0, v0, v1
23; GFX9-NEXT:    v_sub_u32_e32 v5, v4, v5
24; GFX9-NEXT:    v_add_u32_e32 v5, v5, v0
25; GFX9-NEXT:    v_cmp_ge_u32_e32 vcc, v5, v3
26; GFX9-NEXT:    s_or_b64 s[4:5], vcc, s[4:5]
27; GFX9-NEXT:    s_andn2_b64 exec, exec, s[4:5]
28; GFX9-NEXT:    s_cbranch_execnz BB0_1
29; GFX9-NEXT:  ; %bb.2: ; %.loopexit
30; GFX9-NEXT:    s_or_b64 exec, exec, s[4:5]
31; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
32; GFX9-NEXT:    s_setpc_b64 s[30:31]
33bb:
34  %tmp22 = and i32 %arg6, 16777215
35  br label %bb23
36
37.loopexit:                                        ; preds = %bb23
38  ret void
39
40bb23:                                             ; preds = %bb23, %bb
41  %tmp24 = phi i32 [ %arg, %bb ], [ %tmp47, %bb23 ]
42  %tmp28 = and i32 %tmp24, 16777215
43  %tmp29 = mul i32 %tmp28, %tmp22
44  %tmp30 = sub i32 %tmp24, %tmp29
45  %tmp31 = add i32 %tmp30, %arg16
46  %tmp37 = icmp ult i32 %tmp31, %arg13
47  %tmp44 = load float, float addrspace(1)* undef, align 4
48  store float %tmp44, float addrspace(3)* undef, align 4
49  %tmp47 = add i32 %tmp24, %arg2
50  br i1 %tmp37, label %bb23, label %.loopexit
51}
52
53define void @lsr_order_mul24_1(i32 %arg, i32 %arg1, i32 %arg2, float addrspace(3)* nocapture %arg3, i32 %arg4, i32 %arg5, i32 %arg6, i32 %arg7, i32 %arg8, i32 %arg9, float addrspace(1)* nocapture readonly %arg10, i32 %arg11, i32 %arg12, i32 %arg13, i32 %arg14, i32 %arg15, i32 %arg16, i1 zeroext %arg17, i1 zeroext %arg18) #0 {
54; GFX9-LABEL: lsr_order_mul24_1:
55; GFX9:       ; %bb.0: ; %bb
56; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
57; GFX9-NEXT:    v_and_b32_e32 v5, 1, v18
58; GFX9-NEXT:    v_cmp_eq_u32_e32 vcc, 1, v5
59; GFX9-NEXT:    v_cmp_lt_u32_e64 s[4:5], v0, v1
60; GFX9-NEXT:    s_and_saveexec_b64 s[8:9], s[4:5]
61; GFX9-NEXT:    s_cbranch_execz BB1_3
62; GFX9-NEXT:  ; %bb.1: ; %bb19
63; GFX9-NEXT:    v_cvt_f32_u32_e32 v7, v6
64; GFX9-NEXT:    v_and_b32_e32 v5, 0xffffff, v6
65; GFX9-NEXT:    v_add_u32_e32 v6, v4, v0
66; GFX9-NEXT:    v_lshl_add_u32 v3, v6, 2, v3
67; GFX9-NEXT:    v_rcp_iflag_f32_e32 v4, v7
68; GFX9-NEXT:    v_lshlrev_b32_e32 v6, 2, v2
69; GFX9-NEXT:    v_add_u32_e32 v7, v17, v12
70; GFX9-NEXT:    s_mov_b64 s[10:11], 0
71; GFX9-NEXT:  BB1_2: ; %bb23
72; GFX9-NEXT:    ; =>This Inner Loop Header: Depth=1
73; GFX9-NEXT:    v_cvt_f32_u32_e32 v8, v0
74; GFX9-NEXT:    v_add_u32_e32 v9, v17, v0
75; GFX9-NEXT:    v_add_u32_e32 v12, v7, v0
76; GFX9-NEXT:    v_add_u32_e32 v0, v0, v2
77; GFX9-NEXT:    v_madak_f32 v8, v8, v4, 0x3727c5ac
78; GFX9-NEXT:    v_cvt_u32_f32_e32 v8, v8
79; GFX9-NEXT:    v_mul_u32_u24_e32 v18, v8, v5
80; GFX9-NEXT:    v_add_u32_e32 v8, v8, v16
81; GFX9-NEXT:    v_cmp_lt_u32_e64 s[4:5], v8, v13
82; GFX9-NEXT:    v_mul_lo_u32 v8, v8, v15
83; GFX9-NEXT:    v_sub_u32_e32 v19, v9, v18
84; GFX9-NEXT:    v_cmp_lt_u32_e64 s[6:7], v19, v14
85; GFX9-NEXT:    s_and_b64 s[4:5], s[4:5], s[6:7]
86; GFX9-NEXT:    v_sub_u32_e32 v12, v12, v18
87; GFX9-NEXT:    v_add_u32_e32 v8, v12, v8
88; GFX9-NEXT:    s_and_b64 s[4:5], s[4:5], vcc
89; GFX9-NEXT:    v_mov_b32_e32 v9, 0
90; GFX9-NEXT:    v_cndmask_b32_e64 v8, 0, v8, s[4:5]
91; GFX9-NEXT:    v_lshlrev_b64 v[8:9], 2, v[8:9]
92; GFX9-NEXT:    v_add_co_u32_e64 v8, s[6:7], v10, v8
93; GFX9-NEXT:    v_addc_co_u32_e64 v9, s[6:7], v11, v9, s[6:7]
94; GFX9-NEXT:    global_load_dword v8, v[8:9], off
95; GFX9-NEXT:    v_cmp_ge_u32_e64 s[6:7], v0, v1
96; GFX9-NEXT:    s_or_b64 s[10:11], s[6:7], s[10:11]
97; GFX9-NEXT:    s_waitcnt vmcnt(0)
98; GFX9-NEXT:    v_cndmask_b32_e64 v8, 0, v8, s[4:5]
99; GFX9-NEXT:    ds_write_b32 v3, v8
100; GFX9-NEXT:    v_add_u32_e32 v3, v3, v6
101; GFX9-NEXT:    s_andn2_b64 exec, exec, s[10:11]
102; GFX9-NEXT:    s_cbranch_execnz BB1_2
103; GFX9-NEXT:  BB1_3: ; %Flow3
104; GFX9-NEXT:    s_or_b64 exec, exec, s[8:9]
105; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
106; GFX9-NEXT:    s_setpc_b64 s[30:31]
107bb:
108  %tmp = icmp ult i32 %arg, %arg1
109  br i1 %tmp, label %bb19, label %.loopexit
110
111bb19:                                             ; preds = %bb
112  %tmp20 = uitofp i32 %arg6 to float
113  %tmp21 = fdiv float 1.000000e+00, %tmp20, !fpmath !0
114  %tmp22 = and i32 %arg6, 16777215
115  br label %bb23
116
117.loopexit:                                        ; preds = %bb23, %bb
118  ret void
119
120bb23:                                             ; preds = %bb19, %bb23
121  %tmp24 = phi i32 [ %arg, %bb19 ], [ %tmp47, %bb23 ]
122  %tmp25 = uitofp i32 %tmp24 to float
123  %tmp26 = tail call float @llvm.fmuladd.f32(float %tmp25, float %tmp21, float 0x3EE4F8B580000000) #2
124  %tmp27 = fptoui float %tmp26 to i32
125  %tmp28 = and i32 %tmp27, 16777215
126  %tmp29 = mul i32 %tmp28, %tmp22
127  %tmp30 = sub i32 %tmp24, %tmp29
128  %tmp31 = add i32 %tmp30, %arg16
129  %tmp32 = add i32 %tmp27, %arg15
130  %tmp33 = mul i32 %tmp32, %arg14
131  %tmp34 = add i32 %tmp33, %arg11
132  %tmp35 = add i32 %tmp34, %tmp31
133  %tmp36 = add i32 %tmp24, %arg4
134  %tmp37 = icmp ult i32 %tmp31, %arg13
135  %tmp38 = icmp ult i32 %tmp32, %arg12
136  %tmp39 = and i1 %tmp38, %tmp37
137  %tmp40 = and i1 %tmp39, %arg17
138  %tmp41 = zext i32 %tmp35 to i64
139  %tmp42 = select i1 %tmp40, i64 %tmp41, i64 0
140  %tmp43 = getelementptr inbounds float, float addrspace(1)* %arg10, i64 %tmp42
141  %tmp44 = load float, float addrspace(1)* %tmp43, align 4
142  %tmp45 = select i1 %tmp40, float %tmp44, float 0.000000e+00
143  %tmp46 = getelementptr inbounds float, float addrspace(3)* %arg3, i32 %tmp36
144  store float %tmp45, float addrspace(3)* %tmp46, align 4
145  %tmp47 = add i32 %tmp24, %arg2
146  %tmp48 = icmp ult i32 %tmp47, %arg1
147  br i1 %tmp48, label %bb23, label %.loopexit
148}
149
150define void @slsr1_0(i32 %b.arg, i32 %s.arg) #0 {
151; GFX9-LABEL: slsr1_0:
152; GFX9:       ; %bb.0:
153; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
154; GFX9-NEXT:    v_mul_u32_u24_e32 v3, v0, v1
155; GFX9-NEXT:    v_and_b32_e32 v2, 0xffffff, v1
156; GFX9-NEXT:    global_store_dword v[0:1], v3, off
157; GFX9-NEXT:    v_mad_u32_u24 v0, v0, v1, v2
158; GFX9-NEXT:    global_store_dword v[0:1], v0, off
159; GFX9-NEXT:    v_add_u32_e32 v0, v0, v2
160; GFX9-NEXT:    global_store_dword v[0:1], v0, off
161; GFX9-NEXT:    s_waitcnt vmcnt(0)
162; GFX9-NEXT:    s_setpc_b64 s[30:31]
163  %b = and i32 %b.arg, 16777215
164  %s = and i32 %s.arg, 16777215
165
166; CHECK-LABEL: @slsr1(
167  ; foo(b * s);
168  %mul0 = mul i32 %b, %s
169; CHECK: mul i32
170; CHECK-NOT: mul i32
171  store volatile i32 %mul0, i32 addrspace(1)* undef
172
173  ; foo((b + 1) * s);
174  %b1 = add i32 %b, 1
175  %mul1 = mul i32 %b1, %s
176  store volatile i32 %mul1, i32 addrspace(1)* undef
177
178  ; foo((b + 2) * s);
179  %b2 = add i32 %b, 2
180  %mul2 = mul i32 %b2, %s
181  store volatile i32 %mul2, i32 addrspace(1)* undef
182  ret void
183}
184
185define void @slsr1_1(i32 %b.arg, i32 %s.arg) #0 {
186; GFX9-LABEL: slsr1_1:
187; GFX9:       ; %bb.0:
188; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
189; GFX9-NEXT:    s_or_saveexec_b64 s[4:5], -1
190; GFX9-NEXT:    buffer_store_dword v43, off, s[0:3], s32 offset:12 ; 4-byte Folded Spill
191; GFX9-NEXT:    s_mov_b64 exec, s[4:5]
192; GFX9-NEXT:    v_writelane_b32 v43, s33, 4
193; GFX9-NEXT:    s_mov_b32 s33, s32
194; GFX9-NEXT:    s_add_u32 s32, s32, 0x800
195; GFX9-NEXT:    v_writelane_b32 v43, s34, 0
196; GFX9-NEXT:    s_getpc_b64 s[4:5]
197; GFX9-NEXT:    s_add_u32 s4, s4, foo@gotpcrel32@lo+4
198; GFX9-NEXT:    s_addc_u32 s5, s5, foo@gotpcrel32@hi+12
199; GFX9-NEXT:    v_writelane_b32 v43, s35, 1
200; GFX9-NEXT:    s_load_dwordx2 s[34:35], s[4:5], 0x0
201; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
202; GFX9-NEXT:    buffer_store_dword v40, off, s[0:3], s33 offset:8 ; 4-byte Folded Spill
203; GFX9-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
204; GFX9-NEXT:    buffer_store_dword v42, off, s[0:3], s33 ; 4-byte Folded Spill
205; GFX9-NEXT:    v_mov_b32_e32 v40, v1
206; GFX9-NEXT:    v_mov_b32_e32 v41, v0
207; GFX9-NEXT:    v_writelane_b32 v43, s30, 2
208; GFX9-NEXT:    v_mul_u32_u24_e32 v0, v41, v40
209; GFX9-NEXT:    v_writelane_b32 v43, s31, 3
210; GFX9-NEXT:    v_and_b32_e32 v42, 0xffffff, v40
211; GFX9-NEXT:    s_swappc_b64 s[30:31], s[34:35]
212; GFX9-NEXT:    v_mad_u32_u24 v40, v41, v40, v42
213; GFX9-NEXT:    v_mov_b32_e32 v0, v40
214; GFX9-NEXT:    s_swappc_b64 s[30:31], s[34:35]
215; GFX9-NEXT:    v_add_u32_e32 v0, v40, v42
216; GFX9-NEXT:    s_swappc_b64 s[30:31], s[34:35]
217; GFX9-NEXT:    buffer_load_dword v42, off, s[0:3], s33 ; 4-byte Folded Reload
218; GFX9-NEXT:    buffer_load_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Reload
219; GFX9-NEXT:    buffer_load_dword v40, off, s[0:3], s33 offset:8 ; 4-byte Folded Reload
220; GFX9-NEXT:    v_readlane_b32 s4, v43, 2
221; GFX9-NEXT:    v_readlane_b32 s5, v43, 3
222; GFX9-NEXT:    v_readlane_b32 s35, v43, 1
223; GFX9-NEXT:    v_readlane_b32 s34, v43, 0
224; GFX9-NEXT:    s_sub_u32 s32, s32, 0x800
225; GFX9-NEXT:    v_readlane_b32 s33, v43, 4
226; GFX9-NEXT:    s_or_saveexec_b64 s[6:7], -1
227; GFX9-NEXT:    buffer_load_dword v43, off, s[0:3], s32 offset:12 ; 4-byte Folded Reload
228; GFX9-NEXT:    s_mov_b64 exec, s[6:7]
229; GFX9-NEXT:    s_waitcnt vmcnt(0)
230; GFX9-NEXT:    s_setpc_b64 s[4:5]
231  %b = and i32 %b.arg, 16777215
232  %s = and i32 %s.arg, 16777215
233
234; CHECK-LABEL: @slsr1(
235  ; foo(b * s);
236  %mul0 = mul i32 %b, %s
237; CHECK: mul i32
238; CHECK-NOT: mul i32
239  call void @foo(i32 %mul0)
240
241  ; foo((b + 1) * s);
242  %b1 = add i32 %b, 1
243  %mul1 = mul i32 %b1, %s
244  call void @foo(i32 %mul1)
245
246  ; foo((b + 2) * s);
247  %b2 = add i32 %b, 2
248  %mul2 = mul i32 %b2, %s
249  call void @foo(i32 %mul2)
250
251  ret void
252}
253
254declare void @foo(i32) #0
255declare float @llvm.fmuladd.f32(float, float, float) #1
256
257attributes #0 = { nounwind willreturn "denormal-fp-math-f32"="preserve-sign,preserve-sign" }
258attributes #1 = { nounwind readnone speculatable }
259
260!0 = !{float 2.500000e+00}
261