08e40c12fa
Reapply #147854 after fixes merged in #151398. Change memory access histogram storage from uint64_t to uint16_t to reduce profile size on disk. This change updates the raw profile format to v5. Also add a histogram test in compiler-rt since we didn't have one before. With this change the histogram memprof raw for the basic test reduces from 75KB -> 20KB.
23 lines
699 B
Plaintext
23 lines
699 B
Plaintext
REQUIRES: x86_64-linux
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To update the inputs used below run Inputs/update_memprof_inputs.sh /path/to/updated/clang
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RUN: llvm-profdata show --memory %p/Inputs/multi.memprofraw --profiled-binary %p/Inputs/multi.memprofexe -o - | FileCheck %s
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We expect 2 MIB entries, 1 each for the malloc calls in the program.
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CHECK: MemprofProfile:
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CHECK-NEXT: Summary:
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CHECK-NEXT: Version: 5
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CHECK-NEXT: NumSegments: {{[0-9]+}}
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CHECK-NEXT: NumMibInfo: 2
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CHECK-NEXT: NumAllocFunctions: 1
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CHECK-NEXT: NumStackOffsets: 2
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CHECK: SymbolName: main
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CHECK-NEXT: LineOffset: 1
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CHECK-NEXT: Column: 21
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CHECK: SymbolName: main
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CHECK-NEXT: LineOffset: 5
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CHECK-NEXT: Column: 15
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