1 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d \ 2 #RUN: | FileCheck %s -check-prefix=EMPTY 3 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e count \ 4 #RUN: | FileCheck %s -check-prefix=COUNT 5 # 6 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e min \ 7 #RUN: | FileCheck %s -check-prefix=TIME 8 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e med \ 9 #RUN: | FileCheck %s -check-prefix=TIME 10 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e 90p \ 11 #RUN: | FileCheck %s -check-prefix=TIME 12 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e 99p \ 13 #RUN: | FileCheck %s -check-prefix=TIME 14 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e max \ 15 #RUN: | FileCheck %s -check-prefix=TIME 16 #RUN: llvm-xray graph %s -o - -m %S/Inputs/simple-instrmap.yaml -d -e sum \ 17 #RUN: | FileCheck %s -check-prefix=TIME 18 # 19 --- 20 header: 21 version: 1 22 type: 0 23 constant-tsc: true 24 nonstop-tsc: true 25 cycle-frequency: 0 26 records: 27 # Here we reconstruct the following call trace: 28 # 29 # f1() 30 # f2() 31 # f3() 32 # 33 # But we find that we're missing an exit record for f2() because it's 34 # tail-called f3(). We make sure that if we see a trace like this that we can 35 # deduce tail calls, and account the time (potentially wrongly) to f2() when 36 # f1() exits. That is because we don't go back to f3()'s entry record to 37 # properly do the math on the timing of f2(). 38 # 39 # Note that by default, tail/sibling call deduction is disabled, and is enabled 40 # with a flag "-d" or "-deduce-sibling-calls". 41 # 42 - { type: 0, func-id: 1, cpu: 1, thread: 111, kind: function-enter, tsc: 10000 } 43 - { type: 0, func-id: 2, cpu: 1, thread: 111, kind: function-enter, tsc: 10001 } 44 - { type: 0, func-id: 3, cpu: 1, thread: 111, kind: function-enter, tsc: 10002 } 45 - { type: 0, func-id: 3, cpu: 1, thread: 111, kind: function-exit, tsc: 10003 } 46 - { type: 0, func-id: 1, cpu: 1, thread: 111, kind: function-exit, tsc: 10004 } 47 ... 48 49 #EMPTY: digraph xray { 50 #EMPTY-DAG: F0 -> F1 [label=""]; 51 #EMPTY-DAG: F1 -> F2 [label=""]; 52 #EMPTY-DAG: F2 -> F3 [label=""]; 53 #EMPTY-DAG: F1 [label="@(1)"]; 54 #EMPTY-DAG: F2 [label="@(2)"]; 55 #EMPTY-DAG: F3 [label="@(3)"]; 56 #EMPTY-NEXT: } 57 58 #COUNT: digraph xray { 59 #COUNT-DAG: F0 -> F1 [label="1"]; 60 #COUNT-DAG: F1 -> F2 [label="1"]; 61 #COUNT-DAG: F2 -> F3 [label="1"]; 62 #COUNT-DAG: F1 [label="@(1)"]; 63 #COUNT-DAG: F2 [label="@(2)"]; 64 #COUNT-DAG: F3 [label="@(3)"]; 65 #COUNT-NEXT: } 66 67 68 #TIME: digraph xray { 69 #TIME-DAG: F0 -> F1 [label="4.{{.*}}"]; 70 #TIME-DAG: F1 -> F2 [label="3.{{.*}}"]; 71 #TIME-DAG: F2 -> F3 [label="1.{{.*}}"]; 72 #TIME-DAG: F1 [label="@(1)"]; 73 #TIME-DAG: F2 [label="@(2)"]; 74 #TIME-DAG: F3 [label="@(3)"]; 75 #TIME-NEXT: } 76
