#RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d \ #RUN: | FileCheck %s -check-prefix=EMPTY #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e count \ #RUN: | FileCheck %s -check-prefix=COUNT # #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e min \ #RUN: | FileCheck %s -check-prefix=TIME #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e med \ #RUN: | FileCheck %s -check-prefix=TIME #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e 90p \ #RUN: | FileCheck %s -check-prefix=TIME #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e 99p \ #RUN: | FileCheck %s -check-prefix=TIME #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e max \ #RUN: | FileCheck %s -check-prefix=TIME #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e sum \ #RUN: | FileCheck %s -check-prefix=TIME # --- 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 } ... #EMPTY: digraph xray { #EMPTY-DAG: F0 -> F1 [label=""]; #EMPTY-DAG: F1 -> F2 [label=""]; #EMPTY-DAG: F2 -> F3 [label=""]; #EMPTY-DAG: F1 [label="@(1)"]; #EMPTY-DAG: F2 [label="@(2)"]; #EMPTY-DAG: F3 [label="@(3)"]; #EMPTY-NEXT: } #COUNT: digraph xray { #COUNT-DAG: F0 -> F1 [label="1"]; #COUNT-DAG: F1 -> F2 [label="1"]; #COUNT-DAG: F2 -> F3 [label="1"]; #COUNT-DAG: F1 [label="@(1)"]; #COUNT-DAG: F2 [label="@(2)"]; #COUNT-DAG: F3 [label="@(3)"]; #COUNT-NEXT: } #TIME: digraph xray { #TIME-DAG: F0 -> F1 [label="4.{{.*}}"]; #TIME-DAG: F1 -> F2 [label="3.{{.*}}"]; #TIME-DAG: F2 -> F3 [label="1.{{.*}}"]; #TIME-DAG: F1 [label="@(1)"]; #TIME-DAG: F2 [label="@(2)"]; #TIME-DAG: F3 [label="@(3)"]; #TIME-NEXT: }