bolt/test/X86/bug-function-layout-execount.s

   1 # Verifies that llvm-bolt correctly sorts functions by their execution counts.
   2
   3 # REQUIRES: x86_64-linux, asserts
   4
   5 # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
   6 # RUN: link_fdata %s %t.o %t.fdata
   7 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
   8 # RUN: llvm-bolt %t.exe --data %t.fdata --lite --reorder-functions=exec-count \
   9 # RUN:   -v=2 --debug-only=hfsort -o /dev/null 2>&1 | FileCheck %s
  10
  11 # CHECK: Starting pass: reorder-functions
  12 # CHECK-NEXT: hot func func2 (1500)
  13 # CHECK-NEXT: hot func func1 (500)
  14 # CHECK-NEXT: hot func main (400)
  15 # CHECK-NEXT: hot func func5 (110)
  16 # CHECK-NEXT: hot func func3 (100)
  17 # CHECK-NEXT: hot func func4 (99)
  18
  19   .text
  20   .globl main
  21   .type main, %function
  22 main:
  23 # FDATA: 0 [unknown] 0 1 main 0 1 400
  24   .cfi_startproc
  25   call func1
  26   retq
  27   .size _start, .-_start
  28   .cfi_endproc
  29
  30   .globl  func1
  31   .type func1,@function
  32 func1:
  33 # FDATA: 0 [unknown] 0 1 func1 0 1 500
  34   .cfi_startproc
  35   retq
  36   .size func1, .-func1
  37   .cfi_endproc
  38
  39   .globl  func2
  40   .type func2,@function
  41 func2:
  42 # FDATA: 0 [unknown] 0 1 func2 0 1 1500
  43   .cfi_startproc
  44   retq
  45   .size func2, .-func2
  46   .cfi_endproc
  47
  48   .globl  func3
  49   .type func3,@function
  50 func3:
  51 # FDATA: 0 [unknown] 0 1 func3 0 1 100
  52   .cfi_startproc
  53   retq
  54   .size func3, .-func3
  55   .cfi_endproc
  56
  57   .globl  func4
  58   .type func4,@function
  59 func4:
  60 # FDATA: 0 [unknown] 0 1 func4 0 1 99
  61   .cfi_startproc
  62   retq
  63   .size func4, .-func4
  64   .cfi_endproc
  65
  66   .globl  func5
  67   .type func5,@function
  68 func5:
  69 # FDATA: 0 [unknown] 0 1 func5 0 1 110
  70   .cfi_startproc
  71   retq
  72   .size func5, .-func5
  73   .cfi_endproc