bolt/test/X86/cdsplit-symbol-names.s

   1 # Test the correctness of section names and function symbol names post cdsplit.
   2 # Warm section should have name .text.warm and warm function fragments should
   3 # have symbol names ending in warm.
   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: llvm-strip --strip-unneeded %t.o
   8 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
   9 # RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --split-strategy=cdsplit \
  10 # RUN:         --call-scale=2 --data=%t.fdata --reorder-blocks=ext-tsp
  11 # RUN: llvm-objdump --syms %t.bolt | FileCheck %s --check-prefix=CHECK-SYMS-WARM
  12
  13 # CHECK-SYMS-WARM: .text.warm
  14 # CHECK-SYMS-WARM-SAME: chain.warm
  15 # CHECK-SYMS-WARM: .text.cold
  16 # CHECK-SYMS-WARM-SAME: dummy.cold
  17
  18         .text
  19         .globl  chain
  20         .type   chain, @function
  21 chain:
  22         pushq   %rbp
  23         movq    %rsp, %rbp
  24         cmpl    $2, %edi
  25 LLentry_LLchain_start:
  26         jge     LLchain_start
  27 # FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLchain_start# 0 100
  28 # FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLfast# 0 500
  29 LLfast:
  30         movl    $5, %eax
  31 LLfast_LLexit:
  32         jmp     LLexit
  33 # FDATA: 1 chain #LLfast_LLexit# 1 chain #LLexit# 0 500
  34 LLchain_start:
  35         movl    $10, %eax
  36 LLchain_start_LLchain1:
  37         jge     LLchain1
  38 # FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLchain1# 0 99
  39 # FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLloop_entry# 0 1
  40 LLloop_entry:
  41         addl    $1, %eax
  42         addl    $1, %eax
  43         addl    $1, %eax
  44         addl    $1, %eax
  45         xorl    %eax, %eax          // Initialize result
  46         movl    $1000000, %ecx      // Set loop counter to a large value
  47 LLloop_entry_LLloop_start:
  48         jmp     LLloop_start
  49 # FDATA: 1 chain #LLloop_entry_LLloop_start# 1 chain #LLloop_start# 0 1
  50 LLloop_start:
  51         addl    $1, %eax            // Increment result
  52         subl    $1, %ecx            // Decrement loop counter
  53 LLloop_start_LLloop_start:
  54         jg      LLloop_start        // Jump if loop counter is greater than 0
  55 # FDATA: 1 chain #LLloop_start_LLloop_start# 1 chain #LLloop_start# 0 1000000
  56 # FDATA: 1 chain #LLloop_start_LLloop_start# 1 chain #LLchain1# 0 1
  57 LLchain1:
  58         addl    $1, %eax
  59 LLchain1_LLchain2:
  60         jmp     LLchain2
  61 # FDATA: 1 chain #LLchain1_LLchain2# 1 chain #LLchain2# 0 100
  62 LLchain2:
  63         addl    $1, %eax
  64 LLchain2_LLchain3:
  65         jmp     LLchain3
  66 # FDATA: 1 chain #LLchain2_LLchain3# 1 chain #LLchain3# 0 100
  67 LLchain3:
  68         addl    $1, %eax
  69         addl    $1, %eax
  70         addl    $1, %eax
  71         addl    $1, %eax
  72         addl    $1, %eax
  73 LLchain3_LLchain4:
  74         jmp     LLchain4
  75 # FDATA: 1 chain #LLchain3_LLchain4# 1 chain #LLchain4# 0 100
  76 LLchain4:
  77         addl    $1, %eax
  78         addl    $1, %eax
  79         addl    $1, %eax
  80         addl    $1, %eax
  81         addl    $1, %eax
  82 LLchain4_LLexit:
  83         jmp     LLexit
  84 # FDATA: 1 chain #LLchain4_LLexit# 1 chain #LLexit# 0 100
  85 LLexit:
  86         popq    %rbp
  87         ret
  88 LLchain_end:
  89         .size   chain, LLchain_end-chain
  90
  91         .text
  92         .globl  dummy
  93         .type   dummy, @function
  94 dummy:
  95         pushq   %rbp
  96         movq    %rsp, %rbp
  97         cmpl    $2, %edi
  98 dummy_dummy_block1:
  99         jg     dummy_block1
 100 # FDATA: 1 dummy #dummy_dummy_block1# 1 dummy #dummy_block1# 0 0
 101 # FDATA: 1 dummy #dummy_dummy_block1# 1 dummy #dummy_next# 0 100
 102 dummy_next:
 103         addl    $1, %eax
 104         addl    $1, %eax
 105 dummy_next_dummy_exit:
 106         jmp     dummy_exit
 107 # FDATA: 1 dummy #dummy_next_dummy_exit# 1 dummy #dummy_exit# 0 100
 108 dummy_block1:
 109         addl    $1, %eax
 110         addl    $1, %eax
 111         addl    $1, %eax
 112         addl    $1, %eax
 113         addl    $1, %eax
 114 dummy_block1_dummy_block2:
 115         jmp     dummy_block2
 116 # FDATA: 1 dummy #dummy_block1_dummy_block2# 1 dummy #dummy_block2# 0 0
 117 dummy_block2:
 118         addl    $1, %eax
 119         addl    $1, %eax
 120         addl    $1, %eax
 121         addl    $1, %eax
 122         addl    $1, %eax
 123 dummy_block2_dummy_exit:
 124         jmp     dummy_exit
 125 # FDATA: 1 dummy #dummy_block2_dummy_exit# 1 dummy #dummy_exit# 0 0
 126 dummy_exit:
 127         popq    %rbp
 128         ret
 129
 130         .globl  main
 131         .type   main, @function
 132 main:
 133         pushq   %rbp
 134         movq    %rsp, %rbp
 135         movl    $1, %edi
 136 LLmain_chain1:
 137         call    chain
 138 # FDATA: 1 main #LLmain_chain1# 1 chain 0 0 600
 139         movl    $4, %edi
 140 LLmain_dummy:
 141         call    dummy
 142 # FDATA: 1 main #LLmain_dummy# 1 dummy 0 0 100
 143         xorl    %eax, %eax
 144         popq    %rbp
 145         retq
 146 .Lmain_end:
 147         .size   main, .Lmain_end-main