ffcf3c8688
This introduces a new cgdata format for stable function maps. The raw data is embedded in the __llvm_merge section during compile time. This data can be read and merged using the llvm-cgdata tool, into an indexed cgdata file. Consequently, the tool is now capable of handling either outlined hash trees, stable function maps, or both, as they are orthogonal. Depends on #112662. This is a patch for https://discourse.llvm.org/t/rfc-global-function-merging/82608.
42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
# Test various error cases
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# Synthesize a header only cgdata.
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# struct Header {
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# uint64_t Magic;
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# uint32_t Version;
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# uint32_t DataKind;
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# uint64_t OutlinedHashTreeOffset;
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# uint64_t StableFunctionMapOffset;
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# }
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RUN: touch %t_empty.cgdata
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RUN: not llvm-cgdata --show %t_empty.cgdata 2>&1 | FileCheck %s --check-prefix=EMPTY
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EMPTY: {{.}}cgdata: empty codegen data
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# Not a magic.
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RUN: printf '\xff' > %t_malformed.cgdata
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RUN: not llvm-cgdata --show %t_malformed.cgdata 2>&1 | FileCheck %s --check-prefix=MALFORMED
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MALFORMED: {{.}}cgdata: malformed codegen data
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# The minimum header size is 24.
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RUN: printf '\xffcgdata\x81' > %t_corrupt.cgdata
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RUN: not llvm-cgdata --show %t_corrupt.cgdata 2>&1 | FileCheck %s --check-prefix=CORRUPT
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CORRUPT: {{.}}cgdata: invalid codegen data (file header is corrupt)
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# The current version 2 while the header says 3.
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RUN: printf '\xffcgdata\x81' > %t_version.cgdata
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RUN: printf '\x03\x00\x00\x00' >> %t_version.cgdata
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RUN: printf '\x00\x00\x00\x00' >> %t_version.cgdata
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RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_version.cgdata
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RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_version.cgdata
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RUN: not llvm-cgdata --show %t_version.cgdata 2>&1 | FileCheck %s --check-prefix=BAD_VERSION
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BAD_VERSION: {{.}}cgdata: unsupported codegen data version
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# Header says an outlined hash tree, but the file ends after the header.
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RUN: printf '\xffcgdata\x81' > %t_eof.cgdata
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RUN: printf '\x02\x00\x00\x00' >> %t_eof.cgdata
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RUN: printf '\x01\x00\x00\x00' >> %t_eof.cgdata
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RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_eof.cgdata
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RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_eof.cgdata
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RUN: not llvm-cgdata --show %t_eof.cgdata 2>&1 | FileCheck %s --check-prefix=EOF
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EOF: {{.}}cgdata: end of File
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