1LLVM-TLI-CHECKER(1)                  LLVM                  LLVM-TLI-CHECKER(1)
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NAME

6       llvm-tli-checker - TargetLibraryInfo vs library checker
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SYNOPSIS

9       llvm-tli-checker [options] [library-file...]
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DESCRIPTION

12       llvm-tli-checker compares TargetLibraryInfo's opinion of the availabil‐
13       ity of library functions against the set of functions exported  by  the
14       specified  library  files,  reporting  any  disagreements between TLI's
15       opinion and whether the function is actually present. This is primarily
16       useful  for  vendors to ensure the TLI for their target is correct, and
17       the compiler will not "optimize" some code sequence into a library call
18       that is not actually available.
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EXAMPLE

21          $ llvm-tli-checker --triple x86_64-scei-ps4 example.so
22          TLI knows 466 symbols, 235 available for 'x86_64-scei-ps4'
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24          Looking for symbols in 'example.so'
25          Found 235 global function symbols in 'example.so'
26          Found a grand total of 235 library symbols
27          << TLI yes SDK no:  '_ZdaPv' aka operator delete[](void*)
28          >> TLI no  SDK yes: '_ZdaPvj' aka operator delete[](void*, unsigned int)
29          << Total TLI yes SDK no:  1
30          >> Total TLI no  SDK yes: 1
31          == Total TLI yes SDK yes: 234
32          FAIL: LLVM TLI doesn't match SDK libraries.
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OPTIONS

35       --dump-tli
36              Print "available"/"not available" for each library function, ac‐
37              cording to TargetLibraryInfo's  information  for  the  specified
38              triple, and exit. This option does not read any input files.
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40       --help, -h
41              Print a summary of command line options and exit.
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43       --libdir=<directory>
44              A  base  directory to prepend to each library file path. This is
45              handy when there are a number of library files all in  the  same
46              directory,  or  a list of input filenames are kept in a response
47              file.
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49       --report=<level>
50              The amount of information to report.  <level>  can  be  summary,
51              discrepancy,  or  full. A summary report gives only the count of
52              matching  and  mis-matching  symbols;  discrepancy   lists   the
53              mis-matching  symbols;  and full lists all symbols known to TLI,
54              matching or mis-matching. The default is discrepancy.
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56       --separate
57              Read and report a summary  for  each  library  file  separately.
58              This can be useful to identify library files that don't contrib‐
59              ute anything that TLI knows about. Implies --report=summary (can
60              be overridden).
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62       --triple=<triple>
63              The triple to use for initializing TargetLibraryInfo.
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65       @<FILE>
66              Read  command-line  options  and/or  library names from response
67              file <FILE>.
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EXIT STATUS

70       llvm-tli-checker returns 0 even if there are mismatches. It  returns  a
71       non-zero  exit  code  if  there  is an unrecognized option, or no input
72       files are provided.
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AUTHOR

75       Maintained by the LLVM Team (https://llvm.org/).
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78       2003-2022, LLVM Project
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8314                                2022-03-23               LLVM-TLI-CHECKER(1)
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