1 ; RUN: opt < %s -passes=pgo-memop-opt -verify-dom-info -pgo-memop-count-threshold=90 -pgo-memop-percent-threshold=15 --pgo-memop-optimize-memcmp-bcmp -S | FileCheck %s --check-prefix=MEMOP_OPT
2 ; RUN: opt < %s -passes=pgo-memop-opt -verify-dom-info -pgo-memop-count-threshold=90 -pgo-memop-percent-threshold=15 -pgo-memop-optimize-memcmp-bcmp -pass-remarks-with-hotness -pass-remarks-output=%t.opt.yaml -S | FileCheck %s --check-prefix=MEMOP_OPT
3 ; RUN: FileCheck %s -input-file=%t.opt.yaml --check-prefix=YAML
4 ; RUN: FileCheck %s -input-file=%t.opt.yaml --check-prefix=YAML
7 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
8 target triple = "x86_64-unknown-linux-gnu"
10 define void @foo(ptr %dst, ptr %src, ptr %dst2, ptr %src2, ptr %a, i32 %n) !prof !27 {
15 %i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc4 ]
16 %cmp = icmp slt i32 %i.0, %n
17 br i1 %cmp, label %for.body, label %for.end6, !prof !28
23 %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
24 %idx.ext = sext i32 %i.0 to i64
25 %add.ptr = getelementptr inbounds i32, ptr %a, i64 %idx.ext
26 %0 = load i32, ptr %add.ptr, align 4
27 %cmp2 = icmp slt i32 %j.0, %0
28 br i1 %cmp2, label %for.body3, label %for.end, !prof !29
31 %add = add nsw i32 %i.0, 1
32 %conv = sext i32 %add to i64
33 call void @llvm.memcpy.p0.p0.i64(ptr %dst, ptr %src, i64 %conv, i1 false), !prof !30
34 call void @llvm.memcpy.p0.p0.i64(ptr %dst2, ptr %src2, i64 %conv, i1 false), !prof !31
37 ; MEMOP_OPT: switch i64 %conv, label %[[DEFAULT_LABEL:.*]] [
38 ; MEMOP_OPT: i64 0, label %[[CASE_1_LABEL:.*]]
39 ; MEMOP_OPT: ], !prof [[SWITCH_BW:![0-9]+]]
40 ; MEMOP_OPT: [[CASE_1_LABEL]]:
41 ; MEMOP_OPT: call void @llvm.memcpy.p0.p0.i64(ptr %dst, ptr %src, i64 0, i1 false)
42 ; MEMOP_OPT: br label %[[MERGE_LABEL:.*]]
43 ; MEMOP_OPT: [[DEFAULT_LABEL]]:
44 ; MEMOP_OPT: call void @llvm.memcpy.p0.p0.i64(ptr %dst, ptr %src, i64 %conv, i1 false), !prof [[NEWVP:![0-9]+]]
45 ; MEMOP_OPT: br label %[[MERGE_LABEL]]
46 ; MEMOP_OPT: [[MERGE_LABEL]]:
47 ; MEMOP_OPT: switch i64 %conv, label %[[DEFAULT_LABEL2:.*]] [
48 ; MEMOP_OPT: i64 0, label %[[CASE_1_LABEL2:.*]]
49 ; MEMOP_OPT: ], !prof [[SWITCH_BW:![0-9]+]]
50 ; MEMOP_OPT: [[CASE_1_LABEL2]]:
51 ; MEMOP_OPT: call void @llvm.memcpy.p0.p0.i64(ptr %dst2, ptr %src2, i64 0, i1 false)
52 ; MEMOP_OPT: br label %[[MERGE_LABEL2:.*]]
53 ; MEMOP_OPT: [[DEFAULT_LABEL2]]:
54 ; MEMOP_OPT: call void @llvm.memcpy.p0.p0.i64(ptr %dst2, ptr %src2, i64 %conv, i1 false), !prof [[NEWVP]]
55 ; MEMOP_OPT: br label %[[MERGE_LABEL2]]
56 ; MEMOP_OPT: [[MERGE_LABEL2]]:
57 ; MEMOP_OPT: br label %for.inc
60 %inc = add nsw i32 %j.0, 1
67 %inc5 = add nsw i32 %i.0, 1
74 declare void @consume(i32 %v1, i32 %v2)
76 define void @foo_memcmp_bcmp(ptr %dst, ptr %src, ptr %dst2, ptr %src2, ptr %a, i32 %n) !prof !27 {
81 %i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc4 ]
82 %cmp = icmp slt i32 %i.0, %n
83 br i1 %cmp, label %for.body, label %for.end6, !prof !28
89 %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
90 %idx.ext = sext i32 %i.0 to i64
91 %add.ptr = getelementptr inbounds i32, ptr %a, i64 %idx.ext
92 %0 = load i32, ptr %add.ptr, align 4
93 %cmp2 = icmp slt i32 %j.0, %0
94 br i1 %cmp2, label %for.body3, label %for.end, !prof !29
97 %add = add nsw i32 %i.0, 1
98 %conv = sext i32 %add to i64
99 %memcmp = call i32 @memcmp(ptr %dst, ptr %src, i64 %conv), !prof !30
100 %bcmp = call i32 @bcmp(ptr %dst2, ptr %src2, i64 %conv), !prof !31
101 call void @consume(i32 %memcmp, i32 %bcmp)
104 ; MEMOP_OPT: switch i64 %conv, label %[[DEFAULT_LABEL:.*]] [
105 ; MEMOP_OPT: i64 0, label %[[CASE_1_LABEL:.*]]
106 ; MEMOP_OPT: ], !prof [[SWITCH_BW:![0-9]+]]
107 ; MEMOP_OPT: [[CASE_1_LABEL]]:
108 ; MEMOP_OPT: %[[RV:.*]] = call i32 @memcmp(ptr %dst, ptr %src, i64 0)
109 ; MEMOP_OPT: br label %[[MERGE_LABEL:.*]]
110 ; MEMOP_OPT: [[DEFAULT_LABEL]]:
111 ; MEMOP_OPT: %[[RVD:.*]] = call i32 @memcmp(ptr %dst, ptr %src, i64 %conv), !prof [[NEWVP:![0-9]+]]
112 ; MEMOP_OPT: br label %[[MERGE_LABEL]]
113 ; MEMOP_OPT: [[MERGE_LABEL]]:
114 ; MEMOP_OPT: %[[PHI:.*]] = phi i32 [ %[[RVD]], %[[DEFAULT_LABEL]] ], [ %[[RV]], %[[CASE_1_LABEL]] ]
115 ; MEMOP_OPT: switch i64 %conv, label %[[DEFAULT_LABEL2:.*]] [
116 ; MEMOP_OPT: i64 0, label %[[CASE_1_LABEL2:.*]]
117 ; MEMOP_OPT: ], !prof [[SWITCH_BW:![0-9]+]]
118 ; MEMOP_OPT: [[CASE_1_LABEL2]]:
119 ; MEMOP_OPT: %[[RV2:.*]] = call i32 @bcmp(ptr %dst2, ptr %src2, i64 0)
120 ; MEMOP_OPT: br label %[[MERGE_LABEL2:.*]]
121 ; MEMOP_OPT: [[DEFAULT_LABEL2]]:
122 ; MEMOP_OPT: %[[RVD2:.*]] = call i32 @bcmp(ptr %dst2, ptr %src2, i64 %conv), !prof [[NEWVP]]
123 ; MEMOP_OPT: br label %[[MERGE_LABEL2]]
124 ; MEMOP_OPT: [[MERGE_LABEL2]]:
125 ; MEMOP_OPT: %[[PHI2:.*]] = phi i32 [ %[[RVD2]], %[[DEFAULT_LABEL2]] ], [ %[[RV2]], %[[CASE_1_LABEL2]] ]
126 ; MEMOP_OPT: call void @consume(i32 %[[PHI]], i32 %[[PHI2]])
127 ; MEMOP_OPT: br label %for.inc
130 %inc = add nsw i32 %j.0, 1
137 %inc5 = add nsw i32 %i.0, 1
144 ; MEMOP_OPT: [[SWITCH_BW]] = !{!"branch_weights", i32 457, i32 99}
145 ; Should be 457 total left (original total count 556, minus 99 from specialized
146 ; value 0, which is removed from VP array. This should preserve all unpromoted values.
147 ; MEMOP_OPT: [[NEWVP]] = !{!"VP", i32 1, i64 457, i64 2, i64 88, i64 3, i64 77, i64 9, i64 72, i64 4, i64 66, i64 5, i64 55, i64 6, i64 44, i64 7, i64 33, i64 8, i64 22}
149 !llvm.module.flags = !{!0}
151 !0 = !{i32 1, !"ProfileSummary", !1}
152 !1 = !{!2, !3, !4, !5, !6, !7, !8, !9}
153 !2 = !{!"ProfileFormat", !"InstrProf"}
154 !3 = !{!"TotalCount", i64 579}
155 !4 = !{!"MaxCount", i64 556}
156 !5 = !{!"MaxInternalCount", i64 20}
157 !6 = !{!"MaxFunctionCount", i64 556}
158 !7 = !{!"NumCounts", i64 6}
159 !8 = !{!"NumFunctions", i64 3}
160 !9 = !{!"DetailedSummary", !10}
161 !10 = !{!11, !12, !13, !14, !15, !16, !16, !17, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26}
162 !11 = !{i32 10000, i64 556, i32 1}
163 !12 = !{i32 100000, i64 556, i32 1}
164 !13 = !{i32 200000, i64 556, i32 1}
165 !14 = !{i32 300000, i64 556, i32 1}
166 !15 = !{i32 400000, i64 556, i32 1}
167 !16 = !{i32 500000, i64 556, i32 1}
168 !17 = !{i32 600000, i64 556, i32 1}
169 !18 = !{i32 700000, i64 556, i32 1}
170 !19 = !{i32 800000, i64 556, i32 1}
171 !20 = !{i32 900000, i64 556, i32 1}
172 !21 = !{i32 950000, i64 556, i32 1}
173 !22 = !{i32 990000, i64 20, i32 2}
174 !23 = !{i32 999000, i64 1, i32 5}
175 !24 = !{i32 999900, i64 1, i32 5}
176 !25 = !{i32 999990, i64 1, i32 5}
177 !26 = !{i32 999999, i64 1, i32 5}
178 !27 = !{!"function_entry_count", i64 1}
179 !28 = !{!"branch_weights", i32 20, i32 1}
180 !29 = !{!"branch_weights", i32 556, i32 20}
181 !30 = !{!"VP", i32 1, i64 556, i64 0, i64 99, i64 2, i64 88, i64 3, i64 77, i64 9, i64 72, i64 4, i64 66, i64 5, i64 55, i64 6, i64 44, i64 7, i64 33, i64 8, i64 22}
182 !31 = !{!"VP", i32 1, i64 556, i64 0, i64 99, i64 2, i64 88, i64 3, i64 77, i64 9, i64 72, i64 4, i64 66, i64 5, i64 55, i64 6, i64 44, i64 7, i64 33, i64 8, i64 22}
184 declare void @llvm.lifetime.start(i64, ptr nocapture)
186 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1)
188 declare i32 @memcmp(ptr, ptr, i64)
189 declare i32 @bcmp(ptr, ptr, i64)
191 declare void @llvm.lifetime.end(i64, ptr nocapture)
194 ; YAML-NEXT: Pass: pgo-memop-opt
195 ; YAML-NEXT: Name: memopt-opt
196 ; YAML-NEXT: Function: foo
197 ; YAML-NEXT: Hotness: 0
199 ; YAML-NEXT: - String: 'optimized '
200 ; YAML-NEXT: - Memop: memcpy
201 ; YAML-NEXT: - String: ' with count '
202 ; YAML-NEXT: - Count: '99'
203 ; YAML-NEXT: - String: ' out of '
204 ; YAML-NEXT: - Total: '556'
205 ; YAML-NEXT: - String: ' for '
206 ; YAML-NEXT: - Versions: '1'
207 ; YAML-NEXT: - String: ' versions'
209 ; YAML-NEXT: --- !Passed
210 ; YAML-NEXT: Pass: pgo-memop-opt
211 ; YAML-NEXT: Name: memopt-opt
212 ; YAML-NEXT: Function: foo
213 ; YAML-NEXT: Hotness: 0
215 ; YAML-NEXT: - String: 'optimized '
216 ; YAML-NEXT: - Memop: memcpy
217 ; YAML-NEXT: - String: ' with count '
218 ; YAML-NEXT: - Count: '99'
219 ; YAML-NEXT: - String: ' out of '
220 ; YAML-NEXT: - Total: '556'
221 ; YAML-NEXT: - String: ' for '
222 ; YAML-NEXT: - Versions: '1'
223 ; YAML-NEXT: - String: ' versions'
225 ; YAML-NEXT: --- !Passed
226 ; YAML-NEXT: Pass: pgo-memop-opt
227 ; YAML-NEXT: Name: memopt-opt
228 ; YAML-NEXT: Function: foo_memcmp_bcmp
229 ; YAML-NEXT: Hotness: 0
231 ; YAML-NEXT: - String: 'optimized '
232 ; YAML-NEXT: - Memop: memcmp
233 ; YAML-NEXT: - String: ' with count '
234 ; YAML-NEXT: - Count: '99'
235 ; YAML-NEXT: - String: ' out of '
236 ; YAML-NEXT: - Total: '556'
237 ; YAML-NEXT: - String: ' for '
238 ; YAML-NEXT: - Versions: '1'
239 ; YAML-NEXT: - String: ' versions'
241 ; YAML-NEXT: --- !Passed
242 ; YAML-NEXT: Pass: pgo-memop-opt
243 ; YAML-NEXT: Name: memopt-opt
244 ; YAML-NEXT: Function: foo_memcmp_bcmp
245 ; YAML-NEXT: Hotness: 0
247 ; YAML-NEXT: - String: 'optimized '
248 ; YAML-NEXT: - Memop: bcmp
249 ; YAML-NEXT: - String: ' with count '
250 ; YAML-NEXT: - Count: '99'
251 ; YAML-NEXT: - String: ' out of '
252 ; YAML-NEXT: - Total: '556'
253 ; YAML-NEXT: - String: ' for '
254 ; YAML-NEXT: - Versions: '1'
255 ; YAML-NEXT: - String: ' versions'