bolt/test/perf2bolt/perf_test.test

# Check perf2bolt binary function which was compiled with pie

REQUIRES: system-linux, perf

RUN: %clang %S/Inputs/perf_test.c -fuse-ld=lld -pie -Wl,--script=%S/Inputs/perf_test.lds -o %t
RUN: perf record -Fmax -e cycles:u -o %t2 -- %t
RUN: perf2bolt %t -p=%t2 -o %t3 -ba -ignore-build-id --show-density \
RUN:   --heatmap %t.hm 2>&1 | FileCheck %s
RUN: FileCheck %s --input-file %t.hm-section-hotness.csv --check-prefix=CHECK-HM
# Multiple perf.data files as input
RUN: perf2bolt %t -p=%t2 -p %t2 -o %t3.multi -ba -ignore-build-id \
RUN:   | FileCheck %s --check-prefix=CHECK-MULTI
RUN: perf2bolt %t -p=%t2,%t2 -o %t3.comma -ba -ignore-build-id \
RUN:   | FileCheck %s --check-prefix=CHECK-MULTI
RUN: cmp %t3.multi %t3.comma
# Check counts are 2x the original
RUN: merge-fdata %t3 %t3 | sort > %t3.x2
RUN: sort %t3.multi > %t3.multi.x2
RUN: cmp %t3.x2 %t3.multi.x2
# Pre-aggregated output: compare perf->preagg->fdata vs perf->fdata
RUN: perf2bolt %t -p=%t2 -o %t2.pa -ba -ignore-build-id --profile-format=preagg
RUN: perf2bolt %t -p=%t2.pa -o %t2.pa.fdata -ba -pa
RUN: cmp %t2.pa.fdata %t3
# PerfScript output: compare perf->perfscript->fdata vs perf->fdata
RUN: perf2bolt %t -p=%t2 -o %t2.ps -ba -ignore-build-id --profile-format=perfscript
RUN: perf2bolt %t -p=%t2.ps -o %t2.ps.fdata -ba -ps
RUN: cmp %t2.ps.fdata %t3

CHECK-NOT: PERF2BOLT-ERROR
CHECK-NOT: !! WARNING !! This high mismatch ratio indicates the input binary is probably not the same binary used during profiling collection.
CHECK: HEATMAP: building heat map
CHECK: BOLT-INFO: Functions with density >= {{.*}} account for 99.00% total sample counts.
CHECK-MULTI: PERF2BOLT: Starting data aggregation job
CHECK-MULTI: PERF2BOLT: Starting data aggregation job

RUN: %clang %S/Inputs/perf_test.c -no-pie -fuse-ld=lld -o %t4
RUN: perf record -Fmax -e cycles:u -o %t5 -- %t4
RUN: perf2bolt %t4 -p=%t5 -o %t6 -ba -ignore-build-id --show-density \
RUN:   --heatmap %t.hm2 2>&1 | FileCheck %s
RUN: FileCheck %s --input-file %t.hm2-section-hotness.csv --check-prefix=CHECK-HM

CHECK-HM: .text

# Expect an error if the process did not match any PID in perf data
RUN: not perf2bolt %t -p=%t2 -o %t.null --pid=99999 2>&1 | FileCheck %s --check-prefix=CHECK-PID
CHECK-PID: PERF2BOLT-ERROR: could not find a profile matching PID "99999" for binary