bolt/test/X86/debug-fission-single.s

   1 # Checks debug fission support in BOLT
   2
   3 # REQUIRES: system-linux
   4
   5 # RUN: llvm-mc -g \
   6 # RUN:   --filetype=obj \
   7 # RUN:   --triple x86_64-unknown-unknown \
   8 # RUN:   --split-dwarf-file=debug-fission-simple.dwo \
   9 # RUN:   %p/Inputs/debug-fission-simple.s \
  10 # RUN:   -o %t.o
  11 # RUN: %clangxx %cxxflags -no-pie -g \
  12 # RUN:   -Wl,--gc-sections,-q,-nostdlib \
  13 # RUN:   -Wl,--undefined=_Z6_startv \
  14 # RUN:   -nostartfiles \
  15 # RUN:   -Wl,--script=%p/Inputs/debug-fission-script.txt \
  16 # RUN:   %t.o -o %t.exe
  17 # RUN: llvm-bolt %t.exe \
  18 # RUN:   --reorder-blocks=reverse \
  19 # RUN:   --update-debug-sections \
  20 # RUN:   --dwarf-output-path=%T \
  21 # RUN:   -o %t.bolt.1.exe 2>&1 | FileCheck %s
  22 # RUN: llvm-dwarfdump --show-form --verbose --debug-ranges %t.bolt.1.exe &> %tAddrIndexTest
  23 # RUN: llvm-dwarfdump --show-form --verbose --debug-info %T/debug-fission-simple.dwo0.dwo >> %tAddrIndexTest
  24 # RUN: cat %tAddrIndexTest | FileCheck %s --check-prefix=CHECK-DWO-DWO
  25 # RUN: llvm-dwarfdump --show-form --verbose   --debug-addr  %t.bolt.1.exe | FileCheck %s --check-prefix=CHECK-ADDR-SEC
  26
  27 # CHECK-NOT: warning: DWARF unit from offset {{.*}} incl. to offset {{.*}} excl. tries to read DIEs at offset {{.*}}
  28
  29 # CHECK-DWO-DWO: 00000010
  30 # CHECK-DWO-DWO: 00000010
  31 # CHECK-DWO-DWO: DW_TAG_subprogram
  32 # CHECK-DWO-DWO-NEXT: DW_AT_low_pc [DW_FORM_GNU_addr_index]     (indexed (00000001)
  33 # CHECK-DWO-DWO-NEXT: DW_AT_high_pc [DW_FORM_data4]     (0x00000031)
  34 # CHECK-DWO-DWO: DW_TAG_subprogram
  35 # CHECK-DWO-DWO-NEXT: DW_AT_low_pc [DW_FORM_GNU_addr_index]     (indexed (00000002)
  36 # CHECK-DWO-DWO-NEXT: DW_AT_high_pc [DW_FORM_data4]     (0x00000012)
  37 # CHECK-DWO-DWO: DW_TAG_subprogram
  38 # CHECK-DWO-DWO-NEXT: DW_AT_low_pc [DW_FORM_GNU_addr_index]     (indexed (00000003)
  39 # CHECK-DWO-DWO-NEXT: DW_AT_high_pc [DW_FORM_data4]     (0x0000001d)
  40
  41 # CHECK-ADDR-SEC: .debug_addr contents:
  42 # CHECK-ADDR-SEC: 0x00000000: Addrs: [
  43 # CHECK-ADDR-SEC: 0x0000000000601000
  44
  45 # RUN: llvm-bolt %t.exe --reorder-blocks=reverse --update-debug-sections --dwarf-output-path=%T -o %t.bolt.2.exe --write-dwp=true
  46 # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt.2.exe.dwp &> %tAddrIndexTestDwp
  47 # RUN: cat %tAddrIndexTestDwp | FileCheck %s --check-prefix=CHECK-DWP-DEBUG
  48
  49 # CHECK-DWP-DEBUG: DW_TAG_compile_unit [1] *
  50 # CHECK-DWP-DEBUG:  DW_AT_producer [DW_FORM_GNU_str_index]  (indexed (0000000a) string = "clang version 13.0.0")
  51 # CHECK-DWP-DEBUG:  DW_AT_language [DW_FORM_data2]  (DW_LANG_C_plus_plus)
  52 # CHECK-DWP-DEBUG:  DW_AT_name [DW_FORM_GNU_str_index]  (indexed (0000000b) string = "foo")
  53 # CHECK-DWP-DEBUG:  DW_AT_GNU_dwo_name [DW_FORM_GNU_str_index]  (indexed (0000000c) string = "foo")
  54 # CHECK-DWP-DEBUG:  DW_AT_GNU_dwo_id [DW_FORM_data8]  (0x06105e732fad3796)
  55
  56
  57 //clang++ -ffunction-sections -fno-exceptions -g -gsplit-dwarf=split -S debug-fission-simple.cpp -o debug-fission-simple.s
  58 static int foo = 2;
  59 int doStuff(int val) {
  60   if (val == 5)
  61     val += 1 + foo;
  62   else
  63     val -= 1;
  64   return val;
  65 }
  66
  67 int doStuff2(int val) {
  68   return val += 3;
  69 }
  70
  71 int main(int argc, const char** argv) {
  72   return doStuff(argc);
  73 }