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64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
## Tests stale block matching with pseudo probes.
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# REQUIRES: system-linux
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %t/main.s -o %t.o
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# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib
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# RUN: llvm-bolt %t.exe -o %t.out --data %t/yaml -v=2 \
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# RUN: --print-cfg --funcs=main --infer-stale-profile \
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# RUN: --stale-matching-with-pseudo-probes 2>&1 | FileCheck %s
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# CHECK: BOLT-INFO: inference found an exact pseudo probe match for 100.00% of basic blocks (1 out of 1 stale)
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#--- main.s
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.text
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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# %bb.0:
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pushq %rbp
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movq %rsp, %rbp
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movl $0, -4(%rbp)
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.pseudoprobe 15822663052811949562 1 0 0 main
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xorl %eax, %eax
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popq %rbp
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retq
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.Lfunc_end0:
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.size main, .Lfunc_end0-main
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# -- End function
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.section .pseudo_probe_desc,"",@progbits
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.quad -2624081020897602054
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.quad 4294967295
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.byte 4
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.ascii "main"
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#--- yaml
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---
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header:
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profile-version: 1
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binary-name: 'match-blocks-with-pseudo-probes.s.tmp.exe'
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binary-build-id: '<unknown>'
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profile-flags: [ lbr ]
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profile-origin: branch profile reader
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profile-events: ''
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dfs-order: false
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hash-func: xxh3
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functions:
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- name: main
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fid: 0
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hash: 0x0000000000000001
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exec: 1
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nblocks: 6
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blocks:
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- bid: 1
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hash: 0xFFFFFFFFFFFFFFF1
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insns: 1
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succ: [ { bid: 3, cnt: 1} ]
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probes: [ { blk: [ 1 ] } ]
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inline_tree: [ { g: 0 } ]
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pseudo_probe_desc:
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gs: [ 0xDB956436E78DD5FA ]
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gh: [ 0 ]
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hs: [ 0xFFFFFFFF ]
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