6b05a62a6b
No-LBR mode wasn't tested and slipped when mayHaveProfileData was added for Lite mode. This enables processing of profiles collected without LBR and converted with `perf2bolt -nl` option. Test Plan: bin/llvm-lit -a tools/bolt/test/X86/nolbr.s https://github.com/rafaelauler/bolt-tests/pull/20 Reviewed By: #bolt, rafauler Differential Revision: https://reviews.llvm.org/D140256
40 lines
1.2 KiB
ArmAsm
40 lines
1.2 KiB
ArmAsm
# This reproduces a bug where profile collected from perf without LBRs and
|
|
# converted into fdata-no-lbr format is reported to not contain profile for any
|
|
# functions.
|
|
|
|
# REQUIRES: system-linux
|
|
|
|
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \
|
|
# RUN: %s -o %t.o
|
|
# RUN: link_fdata --no-lbr %s %t.o %t.fdata
|
|
# RUN: FileCheck %s --input-file %t.fdata --check-prefix=CHECK-FDATA
|
|
# RUN: llvm-strip --strip-unneeded %t.o
|
|
# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib
|
|
# RUN: llvm-bolt %t.exe -o %t.out --data %t.fdata --dyno-stats -nl \
|
|
# RUN: --print-only=_start 2>&1 | FileCheck %s --check-prefix=CHECK-BOLT
|
|
|
|
# CHECK-FDATA: no_lbr
|
|
# CHECK-FDATA-NEXT: 1 _start [[#]] 1
|
|
|
|
# CHECK-BOLT: BOLT-INFO: pre-processing profile using branch profile reader
|
|
# CHECK-BOLT: BOLT-INFO: operating with basic samples profiling data (no LBR).
|
|
# CHECK-BOLT: BOLT-INFO: 1 out of 1 functions in the binary (100.0%) have non-empty execution profile
|
|
|
|
.globl _start
|
|
.type _start, %function
|
|
_start:
|
|
pushq %rbp
|
|
movq %rsp, %rbp
|
|
cmpl $0x0, %eax
|
|
a:
|
|
# FDATA: 1 _start #a# 1
|
|
je b
|
|
movl $0x0, %eax
|
|
jmp c
|
|
b:
|
|
movl $0x1, %eax
|
|
c:
|
|
popq %rbp
|
|
retq
|
|
.size _start, .-_start
|