#RUN: llvm-xray account %s -o - -m %S/Inputs/simple-instrmap.yaml -d | FileCheck %s --- header: version: 1 type: 0 constant-tsc: true nonstop-tsc: true cycle-frequency: 0 records: # Here we reconstruct the following call trace: # # f1() # f2() # f3() # # But we find that we're missing an exit record for f2() because it's # tail-called f3(). We make sure that if we see a trace like this that we can # deduce tail calls, and account the time (potentially wrongly) to f2() when # f1() exits. That is because we don't go back to f3()'s entry record to # properly do the math on the timing of f2(). # # Note that by default, tail/sibling call deduction is disabled, and is enabled # with a flag "-d" or "-deduce-sibling-calls". # - { type: 0, func-id: 1, cpu: 1, thread: 111, kind: function-enter, tsc: 10000 } - { type: 0, func-id: 2, cpu: 1, thread: 111, kind: function-enter, tsc: 10001 } - { type: 0, func-id: 3, cpu: 1, thread: 111, kind: function-enter, tsc: 10002 } - { type: 0, func-id: 3, cpu: 1, thread: 111, kind: function-exit, tsc: 10003 } - { type: 0, func-id: 1, cpu: 1, thread: 111, kind: function-exit, tsc: 10004 } ... #CHECK: Functions with latencies: 3 #CHECK-NEXT: funcid count [ min, med, 90p, 99p, max] sum function #CHECK-NEXT: 1 1 [ 4.{{.*}}, 4.{{.*}}, 4.{{.*}}, 4.{{.*}}, 4.{{.*}}] {{.*}} {{.*}} #CHECK-NEXT: 2 1 [ 3.{{.*}}, 3.{{.*}}, 3.{{.*}}, 3.{{.*}}, 3.{{.*}}] {{.*}} {{.*}} #CHECK-NEXT: 3 1 [ 1.{{.*}}, 1.{{.*}}, 1.{{.*}}, 1.{{.*}}, 1.{{.*}}] {{.*}} {{.*}}