derek.holloway
7502bf64a4
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93 lines
3.6 KiB
C
93 lines
3.6 KiB
C
// REQUIRES: linux, lld-available
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// FIXME: Investigate and fix.
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// XFAIL: powerpc64-target-arch
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// UNSUPPORTED: powerpc64le-target-arch
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// RUN: rm -rf %t.profraw
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// 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
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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: llvm-nm %t | FileCheck %s -check-prefix=NM
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// RUN: llvm-readelf -x __llvm_prf_names %t | FileCheck %s -check-prefix=PRF_NAMES
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// RUN: llvm-size -A %t | FileCheck %s -check-prefix=PRF_CNTS
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// RUN: rm -rf %t.lto.profraw
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// 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
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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: llvm-nm %t.lto | FileCheck %s -check-prefix=NM
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// RUN: llvm-readelf -x __llvm_prf_names %t.lto | FileCheck %s -check-prefix=PRF_NAMES
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// RUN: llvm-size -A %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 garbage collected.
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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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// Note: We also check the IR instrumentation and expect foo() to be garbage
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// collected as well.
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// RUN: rm -rf %t.pgo.profraw
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// RUN: %clang_pgogen=%t.pgo.profraw -fuse-ld=lld -DCODE=1 -ffunction-sections -fdata-sections -Wl,--gc-sections -o %t.pgo %s
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// RUN: %run %t.pgo
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// RUN: llvm-profdata merge -o %t.pgo.profdata %t.pgo.profraw
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// RUN: llvm-profdata show --all-functions %t.pgo.profdata | FileCheck %s -check-prefix=PGO
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// RUN: llvm-nm %t.pgo | FileCheck %s -check-prefix=NM
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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:
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// PROF-NEXT: Maximum internal block count:
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// Note: We don't expect the names of garbage collected functions to disappear
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// from __llvm_prf_names, because collectPGOFuncNameStrings() glues the names
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// together.
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// PRF_NAMES: Hex dump of section '__llvm_prf_names':
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// PRF_NAMES-NEXT: {{.*}} 0800666f 6f016d61 696e{{.*$}}
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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 garbage collected functions to also
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// be garbage collected.
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// PRF_CNTS: __llvm_prf_cnts 8
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// PGO: Counters:
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// PGO-NEXT: main:
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// PGO-NEXT: Hash:
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// PGO-NEXT: Counters: 1
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// PGO-NEXT: Instrumentation level: IR
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// PGO-NEXT: Functions shown: 1
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// PGO-NEXT: Total functions: 1
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// PGO-NEXT: Maximum function count:
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// PGO-NEXT: Maximum internal block count:
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