File: lit.local.cfg

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (29 lines) | stat: -rw-r--r-- 1,077 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
import subprocess
import lit.util

if not ('Mips' in config.root.targets):
    # We need support for Mips.
    config.unsupported = True

elif not ('mips' in config.root.host_triple):
    # We need to be running on an Mips host.
    config.unsupported = True

else:
    # We need libpfm to be installed and allow reading perf counters. We can
    # only know that at runtime, so we try to measure the latency of an empty
    # code snippet and bail out on error.
    llvm_exegesis_exe = lit.util.which('llvm-exegesis', config.llvm_tools_dir)
    if not llvm_exegesis_exe:
        print('llvm-exegesis not found')
        config.unsupported = True
    else:
      try:
          with open(os.devnull, 'w') as quiet:
              check_llvm_exegesis_result = subprocess.call(
                [llvm_exegesis_exe, '-mode', 'latency', '-snippets-file', '/dev/null'], stdout=quiet, stderr=quiet)
      except OSError:
          print('could not exec llvm-exegesis')
          config.unsupported = True
      if not check_llvm_exegesis_result == 0:
        config.unsupported = True