| blob | 7de9af29096adbc5e33ac8a1255bae60b78884b3 |
1 ; REQUIRES: asserts
2 ; RUN: llc < %s -mtriple=x86_64-- -mcpu=core2 -pre-RA-sched=source -enable-misched -stats 2>&1 | FileCheck %s
3 ;
4 ; Verify that register pressure heuristics are working in MachineScheduler.
5 ;
6 ; We can further reduce spills in this case with a global register
7 ; pressure heuristic, like sethi-ullman numbers or biasing toward
8 ; scheduled subtrees. However, these heuristics are marginally
9 ; beneficial on x86_64 and exacerbate register pressure in other
10 ; more complex cases.
11 ;
12 ; CHECK: @wrap_mul4
13 ; CHECK: 25 regalloc - Number of spills inserted
15 define void @wrap_mul4(double* nocapture %Out, [4 x double]* nocapture %A, [4 x double]* nocapture %B) #0 {
16 entry:
17 %arrayidx1.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 0
18 %0 = load double, double* %arrayidx1.i, align 8
19 %arrayidx3.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 0
20 %1 = load double, double* %arrayidx3.i, align 8
21 %mul.i = fmul double %0, %1
22 %arrayidx5.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 1
23 %2 = load double, double* %arrayidx5.i, align 8
24 %arrayidx7.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 0
25 %3 = load double, double* %arrayidx7.i, align 8
26 %mul8.i = fmul double %2, %3
27 %add.i = fadd double %mul.i, %mul8.i
28 %arrayidx10.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 2
29 %4 = load double, double* %arrayidx10.i, align 8
30 %arrayidx12.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 0
31 %5 = load double, double* %arrayidx12.i, align 8
32 %mul13.i = fmul double %4, %5
33 %add14.i = fadd double %add.i, %mul13.i
34 %arrayidx16.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 3
35 %6 = load double, double* %arrayidx16.i, align 8
36 %arrayidx18.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 0
37 %7 = load double, double* %arrayidx18.i, align 8
38 %mul19.i = fmul double %6, %7
39 %add20.i = fadd double %add14.i, %mul19.i
40 %arrayidx25.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 1
41 %8 = load double, double* %arrayidx25.i, align 8
42 %mul26.i = fmul double %0, %8
43 %arrayidx30.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 1
44 %9 = load double, double* %arrayidx30.i, align 8
45 %mul31.i = fmul double %2, %9
46 %add32.i = fadd double %mul26.i, %mul31.i
47 %arrayidx36.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 1
48 %10 = load double, double* %arrayidx36.i, align 8
49 %mul37.i = fmul double %4, %10
50 %add38.i = fadd double %add32.i, %mul37.i
51 %arrayidx42.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 1
52 %11 = load double, double* %arrayidx42.i, align 8
53 %mul43.i = fmul double %6, %11
54 %add44.i = fadd double %add38.i, %mul43.i
55 %arrayidx49.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 2
56 %12 = load double, double* %arrayidx49.i, align 8
57 %mul50.i = fmul double %0, %12
58 %arrayidx54.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 2
59 %13 = load double, double* %arrayidx54.i, align 8
60 %mul55.i = fmul double %2, %13
61 %add56.i = fadd double %mul50.i, %mul55.i
62 %arrayidx60.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 2
63 %14 = load double, double* %arrayidx60.i, align 8
64 %mul61.i = fmul double %4, %14
65 %add62.i = fadd double %add56.i, %mul61.i
66 %arrayidx66.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 2
67 %15 = load double, double* %arrayidx66.i, align 8
68 %mul67.i = fmul double %6, %15
69 %add68.i = fadd double %add62.i, %mul67.i
70 %arrayidx73.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 3
71 %16 = load double, double* %arrayidx73.i, align 8
72 %mul74.i = fmul double %0, %16
73 %arrayidx78.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 3
74 %17 = load double, double* %arrayidx78.i, align 8
75 %mul79.i = fmul double %2, %17
76 %add80.i = fadd double %mul74.i, %mul79.i
77 %arrayidx84.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 3
78 %18 = load double, double* %arrayidx84.i, align 8
79 %mul85.i = fmul double %4, %18
80 %add86.i = fadd double %add80.i, %mul85.i
81 %arrayidx90.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 3
82 %19 = load double, double* %arrayidx90.i, align 8
83 %mul91.i = fmul double %6, %19
84 %add92.i = fadd double %add86.i, %mul91.i
85 %arrayidx95.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 0
86 %20 = load double, double* %arrayidx95.i, align 8
87 %mul98.i = fmul double %1, %20
88 %arrayidx100.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 1
89 %21 = load double, double* %arrayidx100.i, align 8
90 %mul103.i = fmul double %3, %21
91 %add104.i = fadd double %mul98.i, %mul103.i
92 %arrayidx106.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 2
93 %22 = load double, double* %arrayidx106.i, align 8
94 %mul109.i = fmul double %5, %22
95 %add110.i = fadd double %add104.i, %mul109.i
96 %arrayidx112.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 3
97 %23 = load double, double* %arrayidx112.i, align 8
98 %mul115.i = fmul double %7, %23
99 %add116.i = fadd double %add110.i, %mul115.i
100 %mul122.i = fmul double %8, %20
101 %mul127.i = fmul double %9, %21
102 %add128.i = fadd double %mul122.i, %mul127.i
103 %mul133.i = fmul double %10, %22
104 %add134.i = fadd double %add128.i, %mul133.i
105 %mul139.i = fmul double %11, %23
106 %add140.i = fadd double %add134.i, %mul139.i
107 %mul146.i = fmul double %12, %20
108 %mul151.i = fmul double %13, %21
109 %add152.i = fadd double %mul146.i, %mul151.i
110 %mul157.i = fmul double %14, %22
111 %add158.i = fadd double %add152.i, %mul157.i
112 %mul163.i = fmul double %15, %23
113 %add164.i = fadd double %add158.i, %mul163.i
114 %mul170.i = fmul double %16, %20
115 %mul175.i = fmul double %17, %21
116 %add176.i = fadd double %mul170.i, %mul175.i
117 %mul181.i = fmul double %18, %22
118 %add182.i = fadd double %add176.i, %mul181.i
119 %mul187.i = fmul double %19, %23
120 %add188.i = fadd double %add182.i, %mul187.i
121 %arrayidx191.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 0
122 %24 = load double, double* %arrayidx191.i, align 8
123 %mul194.i = fmul double %1, %24
124 %arrayidx196.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 1
125 %25 = load double, double* %arrayidx196.i, align 8
126 %mul199.i = fmul double %3, %25
127 %add200.i = fadd double %mul194.i, %mul199.i
128 %arrayidx202.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 2
129 %26 = load double, double* %arrayidx202.i, align 8
130 %mul205.i = fmul double %5, %26
131 %add206.i = fadd double %add200.i, %mul205.i
132 %arrayidx208.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 3
133 %27 = load double, double* %arrayidx208.i, align 8
134 %mul211.i = fmul double %7, %27
135 %add212.i = fadd double %add206.i, %mul211.i
136 %mul218.i = fmul double %8, %24
137 %mul223.i = fmul double %9, %25
138 %add224.i = fadd double %mul218.i, %mul223.i
139 %mul229.i = fmul double %10, %26
140 %add230.i = fadd double %add224.i, %mul229.i
141 %mul235.i = fmul double %11, %27
142 %add236.i = fadd double %add230.i, %mul235.i
143 %mul242.i = fmul double %12, %24
144 %mul247.i = fmul double %13, %25
145 %add248.i = fadd double %mul242.i, %mul247.i
146 %mul253.i = fmul double %14, %26
147 %add254.i = fadd double %add248.i, %mul253.i
148 %mul259.i = fmul double %15, %27
149 %add260.i = fadd double %add254.i, %mul259.i
150 %mul266.i = fmul double %16, %24
151 %mul271.i = fmul double %17, %25
152 %add272.i = fadd double %mul266.i, %mul271.i
153 %mul277.i = fmul double %18, %26
154 %add278.i = fadd double %add272.i, %mul277.i
155 %mul283.i = fmul double %19, %27
156 %add284.i = fadd double %add278.i, %mul283.i
157 %arrayidx287.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 0
158 %28 = load double, double* %arrayidx287.i, align 8
159 %mul290.i = fmul double %1, %28
160 %arrayidx292.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 1
161 %29 = load double, double* %arrayidx292.i, align 8
162 %mul295.i = fmul double %3, %29
163 %add296.i = fadd double %mul290.i, %mul295.i
164 %arrayidx298.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 2
165 %30 = load double, double* %arrayidx298.i, align 8
166 %mul301.i = fmul double %5, %30
167 %add302.i = fadd double %add296.i, %mul301.i
168 %arrayidx304.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 3
169 %31 = load double, double* %arrayidx304.i, align 8
170 %mul307.i = fmul double %7, %31
171 %add308.i = fadd double %add302.i, %mul307.i
172 %mul314.i = fmul double %8, %28
173 %mul319.i = fmul double %9, %29
174 %add320.i = fadd double %mul314.i, %mul319.i
175 %mul325.i = fmul double %10, %30
176 %add326.i = fadd double %add320.i, %mul325.i
177 %mul331.i = fmul double %11, %31
178 %add332.i = fadd double %add326.i, %mul331.i
179 %mul338.i = fmul double %12, %28
180 %mul343.i = fmul double %13, %29
181 %add344.i = fadd double %mul338.i, %mul343.i
182 %mul349.i = fmul double %14, %30
183 %add350.i = fadd double %add344.i, %mul349.i
184 %mul355.i = fmul double %15, %31
185 %add356.i = fadd double %add350.i, %mul355.i
186 %mul362.i = fmul double %16, %28
187 %mul367.i = fmul double %17, %29
188 %add368.i = fadd double %mul362.i, %mul367.i
189 %mul373.i = fmul double %18, %30
190 %add374.i = fadd double %add368.i, %mul373.i
191 %mul379.i = fmul double %19, %31
192 %add380.i = fadd double %add374.i, %mul379.i
193 store double %add20.i, double* %Out, align 8
194 %Res.i.sroa.1.8.idx2 = getelementptr inbounds double, double* %Out, i64 1
195 store double %add44.i, double* %Res.i.sroa.1.8.idx2, align 8
196 %Res.i.sroa.2.16.idx4 = getelementptr inbounds double, double* %Out, i64 2
197 store double %add68.i, double* %Res.i.sroa.2.16.idx4, align 8
198 %Res.i.sroa.3.24.idx6 = getelementptr inbounds double, double* %Out, i64 3
199 store double %add92.i, double* %Res.i.sroa.3.24.idx6, align 8
200 %Res.i.sroa.4.32.idx8 = getelementptr inbounds double, double* %Out, i64 4
201 store double %add116.i, double* %Res.i.sroa.4.32.idx8, align 8
202 %Res.i.sroa.5.40.idx10 = getelementptr inbounds double, double* %Out, i64 5
203 store double %add140.i, double* %Res.i.sroa.5.40.idx10, align 8
204 %Res.i.sroa.6.48.idx12 = getelementptr inbounds double, double* %Out, i64 6
205 store double %add164.i, double* %Res.i.sroa.6.48.idx12, align 8
206 %Res.i.sroa.7.56.idx14 = getelementptr inbounds double, double* %Out, i64 7
207 store double %add188.i, double* %Res.i.sroa.7.56.idx14, align 8
208 %Res.i.sroa.8.64.idx16 = getelementptr inbounds double, double* %Out, i64 8
209 store double %add212.i, double* %Res.i.sroa.8.64.idx16, align 8
210 %Res.i.sroa.9.72.idx18 = getelementptr inbounds double, double* %Out, i64 9
211 store double %add236.i, double* %Res.i.sroa.9.72.idx18, align 8
212 %Res.i.sroa.10.80.idx20 = getelementptr inbounds double, double* %Out, i64 10
213 store double %add260.i, double* %Res.i.sroa.10.80.idx20, align 8
214 %Res.i.sroa.11.88.idx22 = getelementptr inbounds double, double* %Out, i64 11
215 store double %add284.i, double* %Res.i.sroa.11.88.idx22, align 8
216 %Res.i.sroa.12.96.idx24 = getelementptr inbounds double, double* %Out, i64 12
217 store double %add308.i, double* %Res.i.sroa.12.96.idx24, align 8
218 %Res.i.sroa.13.104.idx26 = getelementptr inbounds double, double* %Out, i64 13
219 store double %add332.i, double* %Res.i.sroa.13.104.idx26, align 8
220 %Res.i.sroa.14.112.idx28 = getelementptr inbounds double, double* %Out, i64 14
221 store double %add356.i, double* %Res.i.sroa.14.112.idx28, align 8
222 %Res.i.sroa.15.120.idx30 = getelementptr inbounds double, double* %Out, i64 15
223 store double %add380.i, double* %Res.i.sroa.15.120.idx30, align 8
224 ret void
225 }
227 attributes #0 = { noinline nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }