1 ; RUN: opt < %s -passes='print<block-freq>' -disable-output 2>&1 | FileCheck %s
3 ; Function Attrs: noinline norecurse nounwind readnone uwtable
4 define i32 @_Z11irreducibleii(i32 %iter_outer, i32 %iter_inner) local_unnamed_addr !prof !27 {
6 %cmp24 = icmp sgt i32 %iter_outer, 0
7 br i1 %cmp24, label %for.body, label %entry.for.cond.cleanup_crit_edge, !prof !28
9 entry.for.cond.cleanup_crit_edge: ; preds = %entry
10 br label %for.cond.cleanup
12 for.cond.cleanup: ; preds = %for.end, %entry.for.cond.cleanup_crit_edge
13 %sum.0.lcssa = phi i32 [ 0, %entry.for.cond.cleanup_crit_edge ], [ %sum.1, %for.end ]
16 for.body: ; preds = %for.end, %entry
17 %k.026 = phi i32 [ %inc12, %for.end ], [ 0, %entry ]
18 %sum.025 = phi i32 [ %sum.1, %for.end ], [ 0, %entry ]
19 %rem23 = and i32 %k.026, 1
20 %cmp1 = icmp eq i32 %rem23, 0
21 br i1 %cmp1, label %entry8, label %for.cond2, !prof !29
23 for.cond2: ; preds = %if.end9, %for.body
24 %sum.1 = phi i32 [ %add10, %if.end9 ], [ %sum.025, %for.body ]
25 %i.0 = phi i32 [ %inc, %if.end9 ], [ 0, %for.body ]
26 %cmp3 = icmp slt i32 %i.0, %iter_inner
27 br i1 %cmp3, label %for.body4, label %for.end, !prof !30, !irr_loop !31
29 for.body4: ; preds = %for.cond2
30 %rem5 = srem i32 %k.026, 3
31 %cmp6 = icmp eq i32 %rem5, 0
32 br i1 %cmp6, label %entry8, label %if.end9, !prof !32
34 entry8: ; preds = %for.body4, %for.body
35 %sum.2 = phi i32 [ %sum.025, %for.body ], [ %sum.1, %for.body4 ]
36 %i.1 = phi i32 [ 0, %for.body ], [ %i.0, %for.body4 ]
37 %add = add nsw i32 %sum.2, 4
38 br label %if.end9, !irr_loop !33
40 if.end9: ; preds = %entry8, %for.body4
41 %sum.3 = phi i32 [ %add, %entry8 ], [ %sum.1, %for.body4 ]
42 %i.2 = phi i32 [ %i.1, %entry8 ], [ %i.0, %for.body4 ]
43 %add10 = add nsw i32 %sum.3, 1
44 %inc = add nsw i32 %i.2, 1
45 br label %for.cond2, !irr_loop !34
47 for.end: ; preds = %for.cond2
48 %inc12 = add nuw nsw i32 %k.026, 1
49 %exitcond = icmp eq i32 %inc12, %iter_outer
50 br i1 %exitcond, label %for.cond.cleanup, label %for.body, !prof !35
53 !27 = !{!"function_entry_count", i64 1}
54 !28 = !{!"branch_weights", i32 1, i32 0}
55 !29 = !{!"branch_weights", i32 50, i32 50}
56 !30 = !{!"branch_weights", i32 950, i32 100}
57 !31 = !{!"loop_header_weight", i64 1050}
58 !32 = !{!"branch_weights", i32 323, i32 627}
59 !33 = !{!"loop_header_weight", i64 373}
60 !34 = !{!"loop_header_weight", i64 1000}
61 !35 = !{!"branch_weights", i32 1, i32 99}
63 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreducibleii':
64 ; CHECK-NEXT: block-frequency-info: _Z11irreducibleii
65 ; CHECK-NEXT: - entry: {{.*}} count = 1
66 ; CHECK-NEXT: - entry.for.cond.cleanup_crit_edge: {{.*}} count = 0
67 ; CHECK-NEXT: - for.cond.cleanup: {{.*}} count = 1
68 ; CHECK-NEXT: - for.body: {{.*}} count = 100
69 ; CHECK-NEXT: - for.cond2: {{.*}} count = 1050, irr_loop_header_weight = 1050
70 ; CHECK-NEXT: - for.body4: {{.*}} count = 950
71 ; CHECK-NEXT: - entry8: {{.*}} count = 373, irr_loop_header_weight = 373
72 ; CHECK-NEXT: - if.end9: {{.*}} count = 1000, irr_loop_header_weight = 1000
73 ; CHECK-NEXT: - for.end: {{.*}} count = 100
75 @targets = local_unnamed_addr global [256 x ptr] zeroinitializer, align 16
76 @tracing = local_unnamed_addr global i32 0, align 4
78 ; Function Attrs: noinline norecurse nounwind uwtable
79 define i32 @_Z11irreduciblePh(ptr nocapture readonly %p) !prof !27 {
81 %0 = load i32, ptr @tracing, align 4
82 %1 = trunc i32 %0 to i8
83 %tobool = icmp eq i32 %0, 0
86 for.cond1: ; preds = %sw.default, %entry
89 dispatch_op: ; preds = %sw.bb6, %for.cond1
90 switch i8 %1, label %sw.default [
92 i8 1, label %dispatch_op.sw.bb6_crit_edge
96 dispatch_op.sw.bb6_crit_edge: ; preds = %dispatch_op
99 sw.bb: ; preds = %indirectgoto, %dispatch_op
102 TARGET_1: ; preds = %indirectgoto
105 sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
106 br i1 %tobool, label %dispatch_op, label %if.then, !prof !37, !irr_loop !38
108 if.then: ; preds = %sw.bb6
109 br label %indirectgoto
111 TARGET_2: ; preds = %indirectgoto
114 sw.bb15: ; preds = %TARGET_2, %dispatch_op
115 br i1 %tobool, label %if.then18, label %exit, !prof !39, !irr_loop !40
117 if.then18: ; preds = %sw.bb15
118 br label %indirectgoto
120 unknown_op: ; preds = %indirectgoto
123 sw.default: ; preds = %unknown_op, %dispatch_op
126 exit: ; preds = %sw.bb15, %sw.bb
129 indirectgoto: ; preds = %if.then18, %if.then
130 %idxprom21 = zext i32 %0 to i64
131 %arrayidx22 = getelementptr inbounds [256 x ptr], ptr @targets, i64 0, i64 %idxprom21
132 %target = load ptr, ptr %arrayidx22, align 8
133 indirectbr ptr %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
136 !36 = !{!"branch_weights", i32 0, i32 0, i32 201, i32 1}
137 !37 = !{!"branch_weights", i32 201, i32 300}
138 !38 = !{!"loop_header_weight", i64 501}
139 !39 = !{!"branch_weights", i32 100, i32 0}
140 !40 = !{!"loop_header_weight", i64 100}
141 !41 = !{!"branch_weights", i32 0, i32 1, i32 300, i32 99}
142 !42 = !{!"loop_header_weight", i64 400}
144 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreduciblePh':
145 ; CHECK-NEXT: block-frequency-info: _Z11irreduciblePh
146 ; CHECK-NEXT: - entry: {{.*}} count = 1
147 ; CHECK-NEXT: - for.cond1: {{.*}} count = 1
148 ; CHECK-NEXT: - dispatch_op: {{.*}} count = 202
149 ; CHECK-NEXT: - dispatch_op.sw.bb6_crit_edge: {{.*}} count = 201
150 ; CHECK-NEXT: - sw.bb: {{.*}} count = 1
151 ; CHECK-NEXT: - TARGET_1: {{.*}} count = 300
152 ; CHECK-NEXT: - sw.bb6: {{.*}} count = 501, irr_loop_header_weight = 501
153 ; CHECK-NEXT: - if.then: {{.*}} count = 300
154 ; CHECK-NEXT: - TARGET_2: {{.*}} count = 99
155 ; CHECK-NEXT: - sw.bb15: {{.*}} count = 100, irr_loop_header_weight = 100
156 ; CHECK-NEXT: - if.then18: {{.*}} count = 100
157 ; CHECK-NEXT: - unknown_op: {{.*}} count = 0
158 ; CHECK-NEXT: - sw.default: {{.*}} count = 0
159 ; CHECK-NEXT: - exit: {{.*}} count = 1
160 ; CHECK-NEXT: - indirectgoto: {{.*}} count = 400, irr_loop_header_weight = 400
162 ; Missing some irr loop annotations.
163 ; Function Attrs: noinline norecurse nounwind uwtable
164 define i32 @_Z11irreduciblePh2(ptr nocapture readonly %p) !prof !27 {
166 %0 = load i32, ptr @tracing, align 4
167 %1 = trunc i32 %0 to i8
168 %tobool = icmp eq i32 %0, 0
171 for.cond1: ; preds = %sw.default, %entry
172 br label %dispatch_op
174 dispatch_op: ; preds = %sw.bb6, %for.cond1
175 switch i8 %1, label %sw.default [
177 i8 1, label %dispatch_op.sw.bb6_crit_edge
181 dispatch_op.sw.bb6_crit_edge: ; preds = %dispatch_op
184 sw.bb: ; preds = %indirectgoto, %dispatch_op
187 TARGET_1: ; preds = %indirectgoto
190 sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
191 br i1 %tobool, label %dispatch_op, label %if.then, !prof !37 ; Missing !irr_loop !38
193 if.then: ; preds = %sw.bb6
194 br label %indirectgoto
196 TARGET_2: ; preds = %indirectgoto
199 sw.bb15: ; preds = %TARGET_2, %dispatch_op
200 br i1 %tobool, label %if.then18, label %exit, !prof !39, !irr_loop !40
202 if.then18: ; preds = %sw.bb15
203 br label %indirectgoto
205 unknown_op: ; preds = %indirectgoto
208 sw.default: ; preds = %unknown_op, %dispatch_op
211 exit: ; preds = %sw.bb15, %sw.bb
214 indirectgoto: ; preds = %if.then18, %if.then
215 %idxprom21 = zext i32 %0 to i64
216 %arrayidx22 = getelementptr inbounds [256 x ptr], ptr @targets, i64 0, i64 %idxprom21
217 %target = load ptr, ptr %arrayidx22, align 8
218 indirectbr ptr %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
221 ; CHECK-LABEL: Printing analysis {{.*}} for function '_Z11irreduciblePh2':
222 ; CHECK: block-frequency-info: _Z11irreduciblePh2
223 ; CHECK: - sw.bb6: {{.*}} count = 100
224 ; CHECK: - sw.bb15: {{.*}} count = 100, irr_loop_header_weight = 100
225 ; CHECK: - indirectgoto: {{.*}} count = 400, irr_loop_header_weight = 400