1 ; RUN: opt < %s -analyze -block-freq -enable-new-pm=0 | FileCheck %s
2 ; RUN: opt < %s -passes='print<block-freq>' -disable-output 2>&1 | FileCheck %s
4 ; Function Attrs: noinline norecurse nounwind readnone uwtable
5 define i32 @_Z11irreducibleii(i32 %iter_outer, i32 %iter_inner) local_unnamed_addr !prof !27 {
7 %cmp24 = icmp sgt i32 %iter_outer, 0
8 br i1 %cmp24, label %for.body, label %entry.for.cond.cleanup_crit_edge, !prof !28
10 entry.for.cond.cleanup_crit_edge: ; preds = %entry
11 br label %for.cond.cleanup
13 for.cond.cleanup: ; preds = %for.end, %entry.for.cond.cleanup_crit_edge
14 %sum.0.lcssa = phi i32 [ 0, %entry.for.cond.cleanup_crit_edge ], [ %sum.1, %for.end ]
17 for.body: ; preds = %for.end, %entry
18 %k.026 = phi i32 [ %inc12, %for.end ], [ 0, %entry ]
19 %sum.025 = phi i32 [ %sum.1, %for.end ], [ 0, %entry ]
20 %rem23 = and i32 %k.026, 1
21 %cmp1 = icmp eq i32 %rem23, 0
22 br i1 %cmp1, label %entry8, label %for.cond2, !prof !29
24 for.cond2: ; preds = %if.end9, %for.body
25 %sum.1 = phi i32 [ %add10, %if.end9 ], [ %sum.025, %for.body ]
26 %i.0 = phi i32 [ %inc, %if.end9 ], [ 0, %for.body ]
27 %cmp3 = icmp slt i32 %i.0, %iter_inner
28 br i1 %cmp3, label %for.body4, label %for.end, !prof !30, !irr_loop !31
30 for.body4: ; preds = %for.cond2
31 %rem5 = srem i32 %k.026, 3
32 %cmp6 = icmp eq i32 %rem5, 0
33 br i1 %cmp6, label %entry8, label %if.end9, !prof !32
35 entry8: ; preds = %for.body4, %for.body
36 %sum.2 = phi i32 [ %sum.025, %for.body ], [ %sum.1, %for.body4 ]
37 %i.1 = phi i32 [ 0, %for.body ], [ %i.0, %for.body4 ]
38 %add = add nsw i32 %sum.2, 4
39 br label %if.end9, !irr_loop !33
41 if.end9: ; preds = %entry8, %for.body4
42 %sum.3 = phi i32 [ %add, %entry8 ], [ %sum.1, %for.body4 ]
43 %i.2 = phi i32 [ %i.1, %entry8 ], [ %i.0, %for.body4 ]
44 %add10 = add nsw i32 %sum.3, 1
45 %inc = add nsw i32 %i.2, 1
46 br label %for.cond2, !irr_loop !34
48 for.end: ; preds = %for.cond2
49 %inc12 = add nuw nsw i32 %k.026, 1
50 %exitcond = icmp eq i32 %inc12, %iter_outer
51 br i1 %exitcond, label %for.cond.cleanup, label %for.body, !prof !35
54 !27 = !{!"function_entry_count", i64 1}
55 !28 = !{!"branch_weights", i32 1, i32 0}
56 !29 = !{!"branch_weights", i32 50, i32 50}
57 !30 = !{!"branch_weights", i32 950, i32 100}
58 !31 = !{!"loop_header_weight", i64 1050}
59 !32 = !{!"branch_weights", i32 323, i32 627}
60 !33 = !{!"loop_header_weight", i64 373}
61 !34 = !{!"loop_header_weight", i64 1000}
62 !35 = !{!"branch_weights", i32 1, i32 99}
64 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreducibleii':
65 ; CHECK-NEXT: block-frequency-info: _Z11irreducibleii
66 ; CHECK-NEXT: - entry: {{.*}} count = 1
67 ; CHECK-NEXT: - entry.for.cond.cleanup_crit_edge: {{.*}} count = 0
68 ; CHECK-NEXT: - for.cond.cleanup: {{.*}} count = 1
69 ; CHECK-NEXT: - for.body: {{.*}} count = 100
70 ; CHECK-NEXT: - for.cond2: {{.*}} count = 1050, irr_loop_header_weight = 1050
71 ; CHECK-NEXT: - for.body4: {{.*}} count = 950
72 ; CHECK-NEXT: - entry8: {{.*}} count = 373, irr_loop_header_weight = 373
73 ; CHECK-NEXT: - if.end9: {{.*}} count = 1000, irr_loop_header_weight = 1000
74 ; CHECK-NEXT: - for.end: {{.*}} count = 100
76 @targets = local_unnamed_addr global [256 x i8*] zeroinitializer, align 16
77 @tracing = local_unnamed_addr global i32 0, align 4
79 ; Function Attrs: noinline norecurse nounwind uwtable
80 define i32 @_Z11irreduciblePh(i8* nocapture readonly %p) !prof !27 {
82 %0 = load i32, i32* @tracing, align 4
83 %1 = trunc i32 %0 to i8
84 %tobool = icmp eq i32 %0, 0
87 for.cond1: ; preds = %sw.default, %entry
90 dispatch_op: ; preds = %sw.bb6, %for.cond1
91 switch i8 %1, label %sw.default [
93 i8 1, label %dispatch_op.sw.bb6_crit_edge
97 dispatch_op.sw.bb6_crit_edge: ; preds = %dispatch_op
100 sw.bb: ; preds = %indirectgoto, %dispatch_op
103 TARGET_1: ; preds = %indirectgoto
106 sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
107 br i1 %tobool, label %dispatch_op, label %if.then, !prof !37, !irr_loop !38
109 if.then: ; preds = %sw.bb6
110 br label %indirectgoto
112 TARGET_2: ; preds = %indirectgoto
115 sw.bb15: ; preds = %TARGET_2, %dispatch_op
116 br i1 %tobool, label %if.then18, label %exit, !prof !39, !irr_loop !40
118 if.then18: ; preds = %sw.bb15
119 br label %indirectgoto
121 unknown_op: ; preds = %indirectgoto
124 sw.default: ; preds = %unknown_op, %dispatch_op
127 exit: ; preds = %sw.bb15, %sw.bb
130 indirectgoto: ; preds = %if.then18, %if.then
131 %idxprom21 = zext i32 %0 to i64
132 %arrayidx22 = getelementptr inbounds [256 x i8*], [256 x i8*]* @targets, i64 0, i64 %idxprom21
133 %target = load i8*, i8** %arrayidx22, align 8
134 indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
137 !36 = !{!"branch_weights", i32 0, i32 0, i32 201, i32 1}
138 !37 = !{!"branch_weights", i32 201, i32 300}
139 !38 = !{!"loop_header_weight", i64 501}
140 !39 = !{!"branch_weights", i32 100, i32 0}
141 !40 = !{!"loop_header_weight", i64 100}
142 !41 = !{!"branch_weights", i32 0, i32 1, i32 300, i32 99}
143 !42 = !{!"loop_header_weight", i64 400}
145 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreduciblePh':
146 ; CHECK-NEXT: block-frequency-info: _Z11irreduciblePh
147 ; CHECK-NEXT: - entry: {{.*}} count = 1
148 ; CHECK-NEXT: - for.cond1: {{.*}} count = 1
149 ; CHECK-NEXT: - dispatch_op: {{.*}} count = 202
150 ; CHECK-NEXT: - dispatch_op.sw.bb6_crit_edge: {{.*}} count = 201
151 ; CHECK-NEXT: - sw.bb: {{.*}} count = 1
152 ; CHECK-NEXT: - TARGET_1: {{.*}} count = 300
153 ; CHECK-NEXT: - sw.bb6: {{.*}} count = 501, irr_loop_header_weight = 501
154 ; CHECK-NEXT: - if.then: {{.*}} count = 300
155 ; CHECK-NEXT: - TARGET_2: {{.*}} count = 99
156 ; CHECK-NEXT: - sw.bb15: {{.*}} count = 100, irr_loop_header_weight = 100
157 ; CHECK-NEXT: - if.then18: {{.*}} count = 100
158 ; CHECK-NEXT: - unknown_op: {{.*}} count = 0
159 ; CHECK-NEXT: - sw.default: {{.*}} count = 0
160 ; CHECK-NEXT: - exit: {{.*}} count = 1
161 ; CHECK-NEXT: - indirectgoto: {{.*}} count = 400, irr_loop_header_weight = 400
163 ; Missing some irr loop annotations.
164 ; Function Attrs: noinline norecurse nounwind uwtable
165 define i32 @_Z11irreduciblePh2(i8* nocapture readonly %p) !prof !27 {
167 %0 = load i32, i32* @tracing, align 4
168 %1 = trunc i32 %0 to i8
169 %tobool = icmp eq i32 %0, 0
172 for.cond1: ; preds = %sw.default, %entry
173 br label %dispatch_op
175 dispatch_op: ; preds = %sw.bb6, %for.cond1
176 switch i8 %1, label %sw.default [
178 i8 1, label %dispatch_op.sw.bb6_crit_edge
182 dispatch_op.sw.bb6_crit_edge: ; preds = %dispatch_op
185 sw.bb: ; preds = %indirectgoto, %dispatch_op
188 TARGET_1: ; preds = %indirectgoto
191 sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
192 br i1 %tobool, label %dispatch_op, label %if.then, !prof !37 ; Missing !irr_loop !38
194 if.then: ; preds = %sw.bb6
195 br label %indirectgoto
197 TARGET_2: ; preds = %indirectgoto
200 sw.bb15: ; preds = %TARGET_2, %dispatch_op
201 br i1 %tobool, label %if.then18, label %exit, !prof !39, !irr_loop !40
203 if.then18: ; preds = %sw.bb15
204 br label %indirectgoto
206 unknown_op: ; preds = %indirectgoto
209 sw.default: ; preds = %unknown_op, %dispatch_op
212 exit: ; preds = %sw.bb15, %sw.bb
215 indirectgoto: ; preds = %if.then18, %if.then
216 %idxprom21 = zext i32 %0 to i64
217 %arrayidx22 = getelementptr inbounds [256 x i8*], [256 x i8*]* @targets, i64 0, i64 %idxprom21
218 %target = load i8*, i8** %arrayidx22, align 8
219 indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
222 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreduciblePh2':
223 ; CHECK: block-frequency-info: _Z11irreduciblePh2
224 ; CHECK: - sw.bb6: {{.*}} count = 100
225 ; CHECK: - sw.bb15: {{.*}} count = 100, irr_loop_header_weight = 100
226 ; CHECK: - indirectgoto: {{.*}} count = 400, irr_loop_header_weight = 400