Teresa Johnson 546ec641b4 Restore "[MemProf] Use new option/pass for profile feedback and matching"
This restores commit b4a82b62258c5f650a1cccf5b179933e6bae4867, reverted
in 3ab7ef28eebf9019eb3d3c4efd7ebfd160106bb1 because it was thought to
cause a bot failure, which ended up being unrelated to this patch set.

Differential Revision: https://reviews.llvm.org/D154856
2023-07-11 13:16:20 -07:00

30 lines
1.1 KiB
C++

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