b1926f308f
This reverts commit 794b7ea960ccc3222f2af582efadbc5e5c464292, and thus restores commit a212d8da94d08e229aa8d65283e4b116310bba10, and follow on fixes 0cd6763fa93159b84d70a5bb602c24996acaafaa, e9ff53d42feac7fc157718523275619a8106f2f3, and 37c6a25e9ab230e5e21fa34e246d9fec55275df0. Use a hash function (BLAKE3) instead of hash_combine/hash_code which are not guaranteed to be stable across executions. Additionally, it adds a "REQUIRES: x86_64-linux" to the tests that have raw profile inputs to avoid failures on big endian bots. Reviewers: snehasish, davidxl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D128142
39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
// Test if memprof instrumentation and use pass are invoked.
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//
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// Instrumentation:
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// Ensure Pass MemProfilerPass and ModuleMemProfilerPass are invoked.
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// RUN: %clang_cc1 -O2 -fmemory-profile %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=INSTRUMENT
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// INSTRUMENT: Running pass: MemProfilerPass on main
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// INSTRUMENT: Running pass: ModuleMemProfilerPass on [module]
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// Avoid failures on big-endian systems that can't read the raw profile properly
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// REQUIRES: x86_64-linux
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// TODO: Use text profile inputs once that is available for memprof.
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//
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// The following commands were used to compile the source to instrumented
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// executables and collect raw binary format profiles:
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//
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// # Collect memory profile:
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// $ clang++ -fuse-ld=lld -no-pie -Wl,--no-rosegment -gmlt \
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// -fdebug-info-for-profiling -mno-omit-leaf-frame-pointer \
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// -fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -Wl,-build-id \
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// memprof.cpp -o memprof.exe -fmemory-profile
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// $ env MEMPROF_OPTIONS=log_path=stdout ./memprof.exe > memprof.memprofraw
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//
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// RUN: llvm-profdata merge %S/Inputs/memprof.memprofraw --profiled-binary %S/Inputs/memprof.exe -o %t.memprofdata
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// Profile use:
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// Ensure Pass PGOInstrumentationUse is invoked with the memprof-only profile.
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// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t.memprofdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=USE
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// USE: Running pass: PGOInstrumentationUse on [module]
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char *foo() {
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return new char[10];
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}
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int main() {
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char *a = foo();
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delete[] a;
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return 0;
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}
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