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compiler-rt/test/profile/instrprof-gc-sections.c
- This file was added.
| // REQUIRES: linux, lld-available | |||||
| // RUN: %clang_profgen=%t.profraw -fuse-ld=lld -fcoverage-mapping -mllvm -enable-name-compression=false -DCODE=1 -ffunction-sections -fdata-sections -Wl,--gc-sections -o %t %s | |||||
| // RUN: %run %t | |||||
| // RUN: llvm-profdata merge -o %t.profdata %t.profraw | |||||
| // RUN: llvm-profdata show --all-functions %t.profdata | FileCheck %s -check-prefix=PROF | |||||
| // RUN: llvm-cov show %t -instr-profile %t.profdata | FileCheck %s -check-prefix=COV | |||||
| // RUN: llvm-nm %t | FileCheck %s -check-prefix=NM | |||||
| // RUN: llvm-readelf -x __llvm_prf_names %t | FileCheck %s -check-prefix=PRF_NAMES | |||||
| // RUN: llvm-size -A %t | FileCheck %s -check-prefix=PRF_CNTS | |||||
| // RUN: %clang_lto_profgen=%t.lto.profraw -fuse-ld=lld -fcoverage-mapping -mllvm -enable-name-compression=false -DCODE=1 -ffunction-sections -fdata-sections -Wl,--gc-sections -flto -o %t.lto %s | |||||
| // RUN: %run %t.lto | |||||
| // RUN: llvm-profdata merge -o %t.lto.profdata %t.lto.profraw | |||||
| // RUN: llvm-profdata show --all-functions %t.lto.profdata | FileCheck %s -check-prefix=PROF | |||||
| // RUN: llvm-cov show %t.lto -instr-profile %t.lto.profdata | FileCheck %s -check-prefix=COV | |||||
| // RUN: llvm-nm %t.lto | FileCheck %s -check-prefix=NM | |||||
| // RUN: llvm-readelf -x __llvm_prf_names %t.lto | FileCheck %s -check-prefix=PRF_NAMES | |||||
| // RUN: llvm-size -A %t.lto | FileCheck %s -check-prefix=PRF_CNTS | |||||
| // Note: We expect foo() and some of the profiling data associated with it to | |||||
| // be garbage collected. | |||||
| // Note: When there is no code in a program, we expect to see the exact same | |||||
| // set of external functions provided by the profile runtime. | |||||
| // Note: We also check the IR instrumentation and expect foo() to be garbage | |||||
| // collected as well. | |||||
| // RUN: %clang_pgogen=%t.pgo.profraw -fuse-ld=lld -DCODE=1 -ffunction-sections -fdata-sections -Wl,--gc-sections -o %t.pgo %s | |||||
| // RUN: %run %t.pgo | |||||
| // RUN: llvm-profdata merge -o %t.pgo.profdata %t.pgo.profraw | |||||
| // RUN: llvm-profdata show --all-functions %t.pgo.profdata | FileCheck %s -check-prefix=PGO | |||||
| // RUN: llvm-nm %t.pgo | FileCheck %s -check-prefix=NM | |||||
| #ifdef CODE | |||||
| // COV: [[@LINE+1]]{{ *}}|{{ *}}0|void foo() | |||||
| void foo() {} | |||||
| // COV: [[@LINE+1]]{{ *}}|{{ *}}1|int main | |||||
| int main() { return 0; } | |||||
| #endif // CODE | |||||
| // NM-NOT: foo | |||||
| // PROF: Counters: | |||||
| // PROF-NEXT: main: | |||||
| // PROF-NEXT: Hash: | |||||
| // PROF-NEXT: Counters: 1 | |||||
| // PROF-NEXT: Function count: 1 | |||||
| // PROF-NEXT: Instrumentation level: Front-end | |||||
| // PROF-NEXT: Functions shown: 1 | |||||
| // PROF-NEXT: Total functions: 1 | |||||
| // PROF-NEXT: Maximum function count: | |||||
| // PROF-NEXT: Maximum internal block count: | |||||
| // Note: We don't expect the names of garbage collected functions to disappear | |||||
| // from __llvm_prf_names, because collectPGOFuncNameStrings() glues the names | |||||
| // together. | |||||
| // PRF_NAMES: Hex dump of section '__llvm_prf_names': | |||||
| // PRF_NAMES-NEXT: {{.*}} 0800666f 6f016d61 696e{{.*$}} | |||||
| // | | f o o # m a i n | |||||
| // | |___________| | |||||
| // | | | |||||
| // UncompressedLen = 8 | | |||||
| // | | |||||
| // CompressedLen = 0 | |||||
| // Note: We expect the profile counters for garbage collected functions to also | |||||
| // be garbage collected. | |||||
| // PRF_CNTS: __llvm_prf_cnts 8 | |||||
| // PGO: Counters: | |||||
| // PGO-NEXT: main: | |||||
| // PGO-NEXT: Hash: | |||||
| // PGO-NEXT: Counters: 1 | |||||
| // PGO-NEXT: Instrumentation level: IR | |||||
| // PGO-NEXT: Functions shown: 1 | |||||
| // PGO-NEXT: Total functions: 1 | |||||
| // PGO-NEXT: Maximum function count: | |||||
| // PGO-NEXT: Maximum internal block count: | |||||