clang/test/CodeGen/memprof.cpp

   1 // Test if memprof instrumentation and use pass are invoked.
   2 //
   3 // Instrumentation:
   4 // Ensure Pass MemProfilerPass and ModuleMemProfilerPass are invoked.
   5 // RUN: %clang_cc1 -O2 -fmemory-profile %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=INSTRUMENT
   6 // INSTRUMENT: Running pass: MemProfilerPass on main
   7 // INSTRUMENT: Running pass: ModuleMemProfilerPass on [module]
   8
   9 // Avoid failures on big-endian systems that can't read the raw profile properly
  10 // REQUIRES: x86_64-linux
  11
  12 // TODO: Use text profile inputs once that is available for memprof.
  13 //
  14 // To update the inputs below, run Inputs/update_memprof_inputs.sh
  15 // RUN: llvm-profdata merge %S/Inputs/memprof.memprofraw --profiled-binary %S/Inputs/memprof.exe -o %t.memprofdata
  16
  17 // Profile use:
  18 // Ensure Pass PGOInstrumentationUse is invoked with the memprof-only profile.
  19 // RUN: %clang_cc1 -O2 -fmemory-profile-use=%t.memprofdata %s -fdebug-pass-manager  -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=USE
  20 // USE: Running pass: MemProfUsePass on [module]
  21
  22 char *foo() {
  23   return new char[10];
  24 }
  25 int main() {
  26   char *a = foo();
  27   delete[] a;
  28   return 0;
  29 }