## Tests function matching in YAMLProfileReader by function hash. # REQUIRES: system-linux # RUN: split-file %s %t # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %t/main.s -o %t.o # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib # RUN: llvm-bolt %t.exe -o %t.out --data %t/yaml -v=2 \ # RUN: --print-cfg --match-profile-with-function-hash --profile-ignore-hash=0 2>&1 | FileCheck %s # CHECK: BOLT-INFO: matched 1 functions with hash #--- main.s .globl main .type main, @function main: .cfi_startproc .LBB00: pushq %rbp movq %rsp, %rbp subq $16, %rsp testq %rax, %rax js .LBB03 .LBB01: jne .LBB04 .LBB02: nop .LBB03: xorl %eax, %eax addq $16, %rsp popq %rbp retq .LBB04: xorl %eax, %eax addq $16, %rsp popq %rbp retq ## For relocations against .text .reloc 0, R_X86_64_NONE .cfi_endproc .size main, .-main #--- yaml --- header: profile-version: 1 binary-name: 'hashing-based-function-matching.s.tmp.exe' binary-build-id: '' profile-flags: [ lbr ] profile-origin: branch profile reader profile-events: '' dfs-order: false hash-func: xxh3 functions: - name: main2 fid: 0 hash: 0x6E7F15254DE2478 exec: 1 nblocks: 6 blocks: - bid: 1 insns: 1 succ: [ { bid: 3, cnt: 1} ] ...