# Test various error cases

# Synthesize a header only cgdata.
# struct Header {
#   uint64_t Magic;
#   uint32_t Version;
#   uint32_t DataKind;
#   uint64_t OutlinedHashTreeOffset;
#   uint64_t StableFunctionMapOffset;
# }
RUN: touch %t_empty.cgdata
RUN: not llvm-cgdata --show %t_empty.cgdata 2>&1 | FileCheck %s --check-prefix=EMPTY
EMPTY: {{.}}cgdata: empty codegen data

# Not a magic.
RUN: printf '\xff' > %t_malformed.cgdata
RUN: not llvm-cgdata --show %t_malformed.cgdata 2>&1 | FileCheck %s --check-prefix=MALFORMED
MALFORMED: {{.}}cgdata: malformed codegen data

# The minimum header size is 24.
RUN: printf '\xffcgdata\x81' > %t_corrupt.cgdata
RUN: not llvm-cgdata --show %t_corrupt.cgdata 2>&1 | FileCheck %s  --check-prefix=CORRUPT
CORRUPT: {{.}}cgdata: invalid codegen data (file header is corrupt)

# The current version 3 while the header says 4.
RUN: printf '\xffcgdata\x81' > %t_version.cgdata
RUN: printf '\x04\x00\x00\x00' >> %t_version.cgdata
RUN: printf '\x00\x00\x00\x00' >> %t_version.cgdata
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_version.cgdata
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_version.cgdata
RUN: not llvm-cgdata --show %t_version.cgdata 2>&1 | FileCheck %s  --check-prefix=BAD_VERSION
BAD_VERSION: {{.}}cgdata: unsupported codegen data version

# Header says an outlined hash tree, but the file ends after the header.
RUN: printf '\xffcgdata\x81' > %t_eof.cgdata
RUN: printf '\x02\x00\x00\x00' >> %t_eof.cgdata
RUN: printf '\x01\x00\x00\x00' >> %t_eof.cgdata
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_eof.cgdata
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_eof.cgdata
RUN: not llvm-cgdata --show %t_eof.cgdata 2>&1 | FileCheck %s  --check-prefix=EOF
EOF: {{.}}cgdata: end of File