| // REQUIRES: linux, lld-available |
| |
| // RUN: %clang_profgen=%t.profraw -fuse-ld=lld -fcoverage-mapping -mllvm -counter-link-order -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-readelf -x __llvm_prf_cnts %t | FileCheck %s -check-prefix=PRF_CNTS |
| |
| // RUN: %clang_lto_profgen=%t.lto.profraw -fuse-ld=lld -fcoverage-mapping -mllvm -counter-link-order -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-readelf -x __llvm_prf_cnts %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. |
| |
| // RUN: %clang_profgen -fuse-ld=lld -fcoverage-mapping -mllvm -counter-link-order -ffunction-sections -fdata-sections -Wl,--gc-sections -shared -o %t.nocode.so %s |
| // RUN: llvm-nm -jgU %t.nocode.so | grep -vE "__start_.*|__stop_.*" > %t.nocode.syms |
| // RUN: llvm-nm -jgU %t | grep -vE "main|_start|_IO_stdin_used|__libc_.*" > %t.code.syms |
| // RUN: diff %t.nocode.syms %t.code.syms |
| |
| // 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 -mllvm -counter-link-order -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 {{.*$}} |
| // | | f o o # m a i n |
| // | |___________| |
| // | | |
| // UncompressedLen = 8 | |
| // | |
| // CompressedLen = 0 |
| |
| // Note: We expect the profile counters for garbage collected functions to also |
| // be garbage collected. |
| |
| // PRF_CNTS: Hex dump of section '__llvm_prf_cnts': |
| // PRF_CNTS-NEXT: {{.*}} 00000000 00000000 {{.*$}} |
| |
| // 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: |
