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: 0000000000000000 l df *ABS* 0000000000000000 bolt-pseudo.o
  14 # CHECK-SYMS-WARM: .text.warm
  15 # CHECK-SYMS-WARM-SAME: chain.warm
  16 # CHECK-SYMS-WARM: .text.cold
  17 # CHECK-SYMS-WARM-SAME: dummy.cold
  18
  19         .text
  20         .globl  chain
  21         .type   chain, @function
  22 chain:
  23         pushq   %rbp
  24         movq    %rsp, %rbp
  25         cmpl    $2, %edi
  26 LLentry_LLchain_start:
  27         jge     LLchain_start
  28 # FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLchain_start# 0 100
  29 # FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLfast# 0 500
  30 LLfast:
  31         movl    $5, %eax
  32 LLfast_LLexit:
  33         jmp     LLexit
  34 # FDATA: 1 chain #LLfast_LLexit# 1 chain #LLexit# 0 500
  35 LLchain_start:
  36         movl    $10, %eax
  37 LLchain_start_LLchain1:
  38         jge     LLchain1
  39 # FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLchain1# 0 99
  40 # FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLloop_entry# 0 1
  41 LLloop_entry:
  42         addl    $1, %eax
  43         addl    $1, %eax
  44         addl    $1, %eax
  45         addl    $1, %eax
  46         xorl    %eax, %eax          // Initialize result
  47         movl    $1000000, %ecx      // Set loop counter to a large value
  48 LLloop_entry_LLloop_start:
  49         jmp     LLloop_start
  50 # FDATA: 1 chain #LLloop_entry_LLloop_start# 1 chain #LLloop_start# 0 1
  51 LLloop_start:
  52         addl    $1, %eax            // Increment result
  53         subl    $1, %ecx            // Decrement loop counter
  54 LLloop_start_LLloop_start:
  55         jg      LLloop_start        // Jump if loop counter is greater than 0
  56 # FDATA: 1 chain #LLloop_start_LLloop_start# 1 chain #LLloop_start# 0 1000000
  57 # FDATA: 1 chain #LLloop_start_LLloop_start# 1 chain #LLchain1# 0 1
  58 LLchain1:
  59         addl    $1, %eax
  60 LLchain1_LLchain2:
  61         jmp     LLchain2
  62 # FDATA: 1 chain #LLchain1_LLchain2# 1 chain #LLchain2# 0 100
  63 LLchain2:
  64         addl    $1, %eax
  65 LLchain2_LLchain3:
  66         jmp     LLchain3
  67 # FDATA: 1 chain #LLchain2_LLchain3# 1 chain #LLchain3# 0 100
  68 LLchain3:
  69         addl    $1, %eax
  70         addl    $1, %eax
  71         addl    $1, %eax
  72         addl    $1, %eax
  73         addl    $1, %eax
  74 LLchain3_LLchain4:
  75         jmp     LLchain4
  76 # FDATA: 1 chain #LLchain3_LLchain4# 1 chain #LLchain4# 0 100
  77 LLchain4:
  78         addl    $1, %eax
  79         addl    $1, %eax
  80         addl    $1, %eax
  81         addl    $1, %eax
  82         addl    $1, %eax
  83 LLchain4_LLexit:
  84         jmp     LLexit
  85 # FDATA: 1 chain #LLchain4_LLexit# 1 chain #LLexit# 0 100
  86 LLexit:
  87         popq    %rbp
  88         ret
  89 LLchain_end:
  90         .size   chain, LLchain_end-chain
  91
  92         .text
  93         .globl  dummy
  94         .type   dummy, @function
  95 dummy:
  96         pushq   %rbp
  97         movq    %rsp, %rbp
  98         cmpl    $2, %edi
  99 dummy_dummy_block1:
 100         jg     dummy_block1
 101 # FDATA: 1 dummy #dummy_dummy_block1# 1 dummy #dummy_block1# 0 0
 102 # FDATA: 1 dummy #dummy_dummy_block1# 1 dummy #dummy_next# 0 100
 103 dummy_next:
 104         addl    $1, %eax
 105         addl    $1, %eax
 106 dummy_next_dummy_exit:
 107         jmp     dummy_exit
 108 # FDATA: 1 dummy #dummy_next_dummy_exit# 1 dummy #dummy_exit# 0 100
 109 dummy_block1:
 110         addl    $1, %eax
 111         addl    $1, %eax
 112         addl    $1, %eax
 113         addl    $1, %eax
 114         addl    $1, %eax
 115 dummy_block1_dummy_block2:
 116         jmp     dummy_block2
 117 # FDATA: 1 dummy #dummy_block1_dummy_block2# 1 dummy #dummy_block2# 0 0
 118 dummy_block2:
 119         addl    $1, %eax
 120         addl    $1, %eax
 121         addl    $1, %eax
 122         addl    $1, %eax
 123         addl    $1, %eax
 124 dummy_block2_dummy_exit:
 125         jmp     dummy_exit
 126 # FDATA: 1 dummy #dummy_block2_dummy_exit# 1 dummy #dummy_exit# 0 0
 127 dummy_exit:
 128         popq    %rbp
 129         ret
 130
 131         .globl  main
 132         .type   main, @function
 133 main:
 134         pushq   %rbp
 135         movq    %rsp, %rbp
 136         movl    $1, %edi
 137 LLmain_chain1:
 138         call    chain
 139 # FDATA: 1 main #LLmain_chain1# 1 chain 0 0 600
 140         movl    $4, %edi
 141 LLmain_dummy:
 142         call    dummy
 143 # FDATA: 1 main #LLmain_dummy# 1 dummy 0 0 100
 144         xorl    %eax, %eax
 145         popq    %rbp
 146         retq
 147 .Lmain_end:
 148         .size   main, .Lmain_end-main