1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -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[10:11], s[4:5]
61; GFX9-NEXT:    s_cbranch_execz BB1_4
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[12:13], 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_cmp_ge_u32_e64 s[4:5], v0, v1
80; GFX9-NEXT:    v_mul_u32_u24_e32 v18, v8, v5
81; GFX9-NEXT:    v_add_u32_e32 v8, v8, v16
82; GFX9-NEXT:    v_cmp_lt_u32_e64 s[6:7], v8, v13
83; GFX9-NEXT:    v_mul_lo_u32 v8, v8, v15
84; GFX9-NEXT:    v_sub_u32_e32 v19, v9, v18
85; GFX9-NEXT:    v_cmp_lt_u32_e64 s[8:9], v19, v14
86; GFX9-NEXT:    s_and_b64 s[6:7], s[6:7], s[8:9]
87; GFX9-NEXT:    v_sub_u32_e32 v12, v12, v18
88; GFX9-NEXT:    s_and_b64 s[6:7], s[6:7], vcc
89; GFX9-NEXT:    v_add_u32_e32 v8, v12, v8
90; GFX9-NEXT:    v_mov_b32_e32 v9, 0
91; GFX9-NEXT:    v_cndmask_b32_e64 v8, 0, v8, s[6:7]
92; GFX9-NEXT:    v_lshlrev_b64 v[8:9], 2, v[8:9]
93; GFX9-NEXT:    s_or_b64 s[12:13], s[4:5], s[12:13]
94; GFX9-NEXT:    v_add_co_u32_e64 v8, s[4:5], v10, v8
95; GFX9-NEXT:    v_addc_co_u32_e64 v9, s[4:5], v11, v9, s[4:5]
96; GFX9-NEXT:    global_load_dword v8, v[8:9], off
97; GFX9-NEXT:    s_waitcnt vmcnt(0)
98; GFX9-NEXT:    v_cndmask_b32_e64 v8, 0, v8, s[6:7]
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[12:13]
102; GFX9-NEXT:    s_cbranch_execnz BB1_2
103; GFX9-NEXT:  ; %bb.3: ; %Flow
104; GFX9-NEXT:    s_or_b64 exec, exec, s[12:13]
105; GFX9-NEXT:  BB1_4: ; %Flow3
106; GFX9-NEXT:    s_or_b64 exec, exec, s[10:11]
107; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
108; GFX9-NEXT:    s_setpc_b64 s[30:31]
109bb:
110  %tmp = icmp ult i32 %arg, %arg1
111  br i1 %tmp, label %bb19, label %.loopexit
112
113bb19:                                             ; preds = %bb
114  %tmp20 = uitofp i32 %arg6 to float
115  %tmp21 = fdiv float 1.000000e+00, %tmp20, !fpmath !0
116  %tmp22 = and i32 %arg6, 16777215
117  br label %bb23
118
119.loopexit:                                        ; preds = %bb23, %bb
120  ret void
121
122bb23:                                             ; preds = %bb19, %bb23
123  %tmp24 = phi i32 [ %arg, %bb19 ], [ %tmp47, %bb23 ]
124  %tmp25 = uitofp i32 %tmp24 to float
125  %tmp26 = tail call float @llvm.fmuladd.f32(float %tmp25, float %tmp21, float 0x3EE4F8B580000000) #2
126  %tmp27 = fptoui float %tmp26 to i32
127  %tmp28 = and i32 %tmp27, 16777215
128  %tmp29 = mul i32 %tmp28, %tmp22
129  %tmp30 = sub i32 %tmp24, %tmp29
130  %tmp31 = add i32 %tmp30, %arg16
131  %tmp32 = add i32 %tmp27, %arg15
132  %tmp33 = mul i32 %tmp32, %arg14
133  %tmp34 = add i32 %tmp33, %arg11
134  %tmp35 = add i32 %tmp34, %tmp31
135  %tmp36 = add i32 %tmp24, %arg4
136  %tmp37 = icmp ult i32 %tmp31, %arg13
137  %tmp38 = icmp ult i32 %tmp32, %arg12
138  %tmp39 = and i1 %tmp38, %tmp37
139  %tmp40 = and i1 %tmp39, %arg17
140  %tmp41 = zext i32 %tmp35 to i64
141  %tmp42 = select i1 %tmp40, i64 %tmp41, i64 0
142  %tmp43 = getelementptr inbounds float, float addrspace(1)* %arg10, i64 %tmp42
143  %tmp44 = load float, float addrspace(1)* %tmp43, align 4
144  %tmp45 = select i1 %tmp40, float %tmp44, float 0.000000e+00
145  %tmp46 = getelementptr inbounds float, float addrspace(3)* %arg3, i32 %tmp36
146  store float %tmp45, float addrspace(3)* %tmp46, align 4
147  %tmp47 = add i32 %tmp24, %arg2
148  %tmp48 = icmp ult i32 %tmp47, %arg1
149  br i1 %tmp48, label %bb23, label %.loopexit
150}
151
152define void @slsr1_0(i32 %b.arg, i32 %s.arg) #0 {
153; GFX9-LABEL: slsr1_0:
154; GFX9:       ; %bb.0:
155; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
156; GFX9-NEXT:    v_mul_u32_u24_e32 v3, v0, v1
157; GFX9-NEXT:    v_and_b32_e32 v2, 0xffffff, v1
158; GFX9-NEXT:    global_store_dword v[0:1], v3, off
159; GFX9-NEXT:    v_mad_u32_u24 v0, v0, v1, v2
160; GFX9-NEXT:    global_store_dword v[0:1], v0, off
161; GFX9-NEXT:    v_add_u32_e32 v0, v0, v2
162; GFX9-NEXT:    global_store_dword v[0:1], v0, off
163; GFX9-NEXT:    s_waitcnt vmcnt(0)
164; GFX9-NEXT:    s_setpc_b64 s[30:31]
165  %b = and i32 %b.arg, 16777215
166  %s = and i32 %s.arg, 16777215
167
168; CHECK-LABEL: @slsr1(
169  ; foo(b * s);
170  %mul0 = mul i32 %b, %s
171; CHECK: mul i32
172; CHECK-NOT: mul i32
173  store volatile i32 %mul0, i32 addrspace(1)* undef
174
175  ; foo((b + 1) * s);
176  %b1 = add i32 %b, 1
177  %mul1 = mul i32 %b1, %s
178  store volatile i32 %mul1, i32 addrspace(1)* undef
179
180  ; foo((b + 2) * s);
181  %b2 = add i32 %b, 2
182  %mul2 = mul i32 %b2, %s
183  store volatile i32 %mul2, i32 addrspace(1)* undef
184  ret void
185}
186
187define void @slsr1_1(i32 %b.arg, i32 %s.arg) #0 {
188; GFX9-LABEL: slsr1_1:
189; GFX9:       ; %bb.0:
190; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
191; GFX9-NEXT:    s_or_saveexec_b64 s[4:5], -1
192; GFX9-NEXT:    buffer_store_dword v35, off, s[0:3], s32 offset:12 ; 4-byte Folded Spill
193; GFX9-NEXT:    s_mov_b64 exec, s[4:5]
194; GFX9-NEXT:    v_writelane_b32 v35, s34, 4
195; GFX9-NEXT:    s_mov_b32 s34, s32
196; GFX9-NEXT:    s_add_u32 s32, s32, 0x800
197; GFX9-NEXT:    buffer_store_dword v32, off, s[0:3], s34 offset:8 ; 4-byte Folded Spill
198; GFX9-NEXT:    buffer_store_dword v33, off, s[0:3], s34 offset:4 ; 4-byte Folded Spill
199; GFX9-NEXT:    buffer_store_dword v34, off, s[0:3], s34 ; 4-byte Folded Spill
200; GFX9-NEXT:    v_writelane_b32 v35, s36, 0
201; GFX9-NEXT:    s_getpc_b64 s[4:5]
202; GFX9-NEXT:    s_add_u32 s4, s4, foo@gotpcrel32@lo+4
203; GFX9-NEXT:    s_addc_u32 s5, s5, foo@gotpcrel32@hi+4
204; GFX9-NEXT:    v_writelane_b32 v35, s37, 1
205; GFX9-NEXT:    s_load_dwordx2 s[36:37], s[4:5], 0x0
206; GFX9-NEXT:    v_mov_b32_e32 v32, v1
207; GFX9-NEXT:    v_mov_b32_e32 v33, v0
208; GFX9-NEXT:    v_writelane_b32 v35, s30, 2
209; GFX9-NEXT:    v_mul_u32_u24_e32 v0, v33, v32
210; GFX9-NEXT:    v_writelane_b32 v35, s31, 3
211; GFX9-NEXT:    v_and_b32_e32 v34, 0xffffff, v32
212; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
213; GFX9-NEXT:    s_swappc_b64 s[30:31], s[36:37]
214; GFX9-NEXT:    v_mad_u32_u24 v32, v33, v32, v34
215; GFX9-NEXT:    v_mov_b32_e32 v0, v32
216; GFX9-NEXT:    s_swappc_b64 s[30:31], s[36:37]
217; GFX9-NEXT:    v_add_u32_e32 v0, v32, v34
218; GFX9-NEXT:    s_swappc_b64 s[30:31], s[36:37]
219; GFX9-NEXT:    v_readlane_b32 s4, v35, 2
220; GFX9-NEXT:    v_readlane_b32 s5, v35, 3
221; GFX9-NEXT:    v_readlane_b32 s37, v35, 1
222; GFX9-NEXT:    v_readlane_b32 s36, v35, 0
223; GFX9-NEXT:    buffer_load_dword v34, off, s[0:3], s34 ; 4-byte Folded Reload
224; GFX9-NEXT:    buffer_load_dword v33, off, s[0:3], s34 offset:4 ; 4-byte Folded Reload
225; GFX9-NEXT:    buffer_load_dword v32, off, s[0:3], s34 offset:8 ; 4-byte Folded Reload
226; GFX9-NEXT:    s_sub_u32 s32, s32, 0x800
227; GFX9-NEXT:    v_readlane_b32 s34, v35, 4
228; GFX9-NEXT:    s_or_saveexec_b64 s[6:7], -1
229; GFX9-NEXT:    buffer_load_dword v35, off, s[0:3], s32 offset:12 ; 4-byte Folded Reload
230; GFX9-NEXT:    s_mov_b64 exec, s[6:7]
231; GFX9-NEXT:    s_waitcnt vmcnt(0)
232; GFX9-NEXT:    s_setpc_b64 s[4:5]
233  %b = and i32 %b.arg, 16777215
234  %s = and i32 %s.arg, 16777215
235
236; CHECK-LABEL: @slsr1(
237  ; foo(b * s);
238  %mul0 = mul i32 %b, %s
239; CHECK: mul i32
240; CHECK-NOT: mul i32
241  call void @foo(i32 %mul0)
242
243  ; foo((b + 1) * s);
244  %b1 = add i32 %b, 1
245  %mul1 = mul i32 %b1, %s
246  call void @foo(i32 %mul1)
247
248  ; foo((b + 2) * s);
249  %b2 = add i32 %b, 2
250  %mul2 = mul i32 %b2, %s
251  call void @foo(i32 %mul2)
252
253  ret void
254}
255
256declare void @foo(i32) #0
257declare float @llvm.fmuladd.f32(float, float, float) #1
258
259attributes #0 = { nounwind willreturn }
260attributes #1 = { nounwind readnone speculatable }
261
262!0 = !{float 2.500000e+00}
263