derek.holloway
7502bf64a4
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77 lines
3.4 KiB
C
77 lines
3.4 KiB
C
// REQUIRES: osx-ld64-live_support
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// REQUIRES: lto
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// RUN: %clang_profgen=%t.profraw -fcoverage-mapping -mllvm -enable-name-compression=false -DCODE=1 -Wl,-dead_strip \
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// RUN: -Wl,-sectalign,__DATA,__llvm_prf_cnts,0x1000 -Wl,-sectalign,__DATA,__llvm_prf_data,0x1000 -Wl,-sectalign,__DATA,__llvm_prf_bits,0x1000 -o %t %s
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// RUN: %run %t
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// RUN: llvm-profdata merge -o %t.profdata %t.profraw
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// RUN: llvm-profdata show --all-functions %t.profdata | FileCheck %s -check-prefix=PROF
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// RUN: llvm-cov show %t -instr-profile %t.profdata | FileCheck %s -check-prefix=COV
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// RUN: nm %t | FileCheck %s -check-prefix=NM
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// RUN: otool -V -s __DATA __llvm_prf_names %t | FileCheck %s -check-prefix=PRF_NAMES
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// RUN: otool -V -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 -DCODE=1 -Wl,-dead_strip -Wl,-w -flto \
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// RUN: -Wl,-sectalign,__DATA,__llvm_prf_cnts,0x1000 -Wl,-sectalign,__DATA,__llvm_prf_data,0x1000 -Wl,-sectalign,__DATA,__llvm_prf_bits,0x1000 -o %t.lto %s
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// RUN: %run %t.lto
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// RUN: llvm-profdata merge -o %t.lto.profdata %t.lto.profraw
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// RUN: llvm-profdata show --all-functions %t.lto.profdata | FileCheck %s -check-prefix=PROF
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// RUN: llvm-cov show %t.lto -instr-profile %t.lto.profdata | FileCheck %s -check-prefix=COV
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// RUN: nm %t.lto | FileCheck %s -check-prefix=NM
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// RUN: otool -V -s __DATA __llvm_prf_names %t.lto | FileCheck %s -check-prefix=PRF_NAMES
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// RUN: otool -V -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
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// be dead-stripped.
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// Note: When there is no code in a program, we expect to see the exact same
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// set of external functions provided by the profile runtime.
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// RUN: %clang_profgen -fcoverage-mapping -Wl,-dead_strip -Wl,-sectalign,__DATA,__llvm_prf_cnts,0x1000 \
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// RUN: -Wl,-sectalign,__DATA,__llvm_prf_data,0x1000 -Wl,-sectalign,__DATA,__llvm_prf_bits,0x1000 -dynamiclib -o %t.nocode.dylib %s
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// RUN: nm -jgU %t.nocode.dylib > %t.nocode.syms
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// RUN: nm -jgU %t | sed -e '/_\{1,\}main/d' -e '/_\{1,\}mh_execute_header/d' > %t.code.syms
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// RUN: diff %t.nocode.syms %t.code.syms
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#ifdef CODE
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// COV: [[@LINE+1]]{{ *}}|{{ *}}0|void foo()
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void foo() {}
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// COV: [[@LINE+1]]{{ *}}|{{ *}}1|int main
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int main() { return 0; }
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#endif // CODE
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// NM-NOT: foo
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// PROF: Counters:
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// PROF-NEXT: main:
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// PROF-NEXT: Hash:
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// PROF-NEXT: Counters: 1
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// PROF-NEXT: Function count: 1
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// PROF-NEXT: Instrumentation level: Front-end
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// PROF-NEXT: Functions shown: 1
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// PROF-NEXT: Total functions: 1
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// PROF-NEXT: Maximum function count: 1
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// 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
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// __llvm_prf_names, because collectPGOFuncNameStrings() glues the names
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// together.
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// PRF_NAMES: Contents of (__DATA,__llvm_prf_names) section
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// PRF_NAMES-NEXT: {{.*}} 08 00 66 6f 6f 01 6d 61 69 6e
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// | | f o o # m a i n
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// | |___________|
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// | |
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// UncompressedLen = 8 |
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// |
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// CompressedLen = 0
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// Note: We expect the profile counters for dead-stripped functions to also be
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// dead-stripped.
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// PRF_CNTS: Contents of (__DATA,__llvm_prf_cnts) section
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// PRF_CNTS-NEXT: {{.*}} 00 00 00 00 00 00 00 00
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