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[profile] Add test for dead_strip+live_support functionality
Differential Revision: https://reviews.llvm.org/D25457 llvm-svn: 283948
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// REQUIRES: osx-ld64-live_support | ||
// REQUIRES: lto | ||
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// RUN: %clang_profgen=%t.profraw -fcoverage-mapping -mllvm -enable-name-compression=false -Wl,-dead_strip -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: nm %t | FileCheck %s -check-prefix=NM | ||
// RUN: otool -s __DATA __llvm_prf_names %t | FileCheck %s -check-prefix=PRF_NAMES | ||
// RUN: otool -s __DATA __llvm_prf_cnts %t | FileCheck %s -check-prefix=PRF_CNTS | ||
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// RUN: %clang_lto_profgen=%t.lto.profraw -fcoverage-mapping -mllvm -enable-name-compression=false -Wl,-dead_strip -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: nm %t.lto | FileCheck %s -check-prefix=NM | ||
// RUN: otool -s __DATA __llvm_prf_names %t.lto | FileCheck %s -check-prefix=PRF_NAMES | ||
// RUN: otool -s __DATA __llvm_prf_cnts %t.lto | FileCheck %s -check-prefix=PRF_CNTS | ||
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// Note: We expect foo() and some of the profiling data associated with it to | ||
// be dead-stripped. | ||
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// COV: [[@LINE+1]]{{ *}}|{{ *}}0|void foo() | ||
void foo() {} | ||
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// COV: [[@LINE+1]]{{ *}}|{{ *}}1|int main | ||
int main() { return 0; } | ||
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// NM-NOT: foo | ||
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// PROF: Counters: | ||
// PROF-NEXT: main: | ||
// PROF-NEXT: Hash: | ||
// PROF-NEXT: Counters: 1 | ||
// PROF-NEXT: Function count: 1 | ||
// PROF-NEXT: Functions shown: 1 | ||
// PROF-NEXT: Total functions: 1 | ||
// PROF-NEXT: Maximum function count: 1 | ||
// PROF-NEXT: Maximum internal block count: 0 | ||
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// Note: We don't expect the names of dead-stripped functions to disappear from | ||
// __llvm_prf_names, because collectPGOFuncNameStrings() glues the names | ||
// together. | ||
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// PRF_NAMES: Contents of (__DATA,__llvm_prf_names) section | ||
// PRF_NAMES-NEXT: {{.*}} 08 00 66 6f 6f 01 6d 61 69 6e{{ +$}} | ||
// | | f o o # m a i n | ||
// | |___________| | ||
// | | | ||
// UncompressedLen = 8 | | ||
// | | ||
// CompressedLen = 0 | ||
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// Note: We expect the profile counters for dead-stripped functions to also be | ||
// dead-stripped. | ||
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// PRF_CNTS: Contents of (__DATA,__llvm_prf_cnts) section | ||
// PRF_CNTS-NEXT: {{.*}} 00 00 00 00 00 00 00 00{{ +$}} |
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