diff options
Diffstat (limited to 'contrib/llvm/tools/clang/utils/CmpDriver')
| -rwxr-xr-x | contrib/llvm/tools/clang/utils/CmpDriver | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/contrib/llvm/tools/clang/utils/CmpDriver b/contrib/llvm/tools/clang/utils/CmpDriver deleted file mode 100755 index 16b1081..0000000 --- a/contrib/llvm/tools/clang/utils/CmpDriver +++ /dev/null @@ -1,210 +0,0 @@ -#!/usr/bin/env python - -import subprocess - -def splitArgs(s): - it = iter(s) - current = '' - inQuote = False - for c in it: - if c == '"': - if inQuote: - inQuote = False - yield current + '"' - else: - inQuote = True - current = '"' - elif inQuote: - if c == '\\': - current += c - current += it.next() - else: - current += c - elif not c.isspace(): - yield c - -def insertMinimumPadding(a, b, dist): - """insertMinimumPadding(a,b) -> (a',b') - - Return two lists of equal length, where some number of Nones have - been inserted into the shorter list such that sum(map(dist, a', - b')) is minimized. - - Assumes dist(X, Y) -> int and non-negative. - """ - - def cost(a, b): - return sum(map(dist, a + [None] * (len(b) - len(a)), b)) - - # Normalize so a is shortest. - if len(b) < len(a): - b, a = insertMinimumPadding(b, a, dist) - return a,b - - # For each None we have to insert... - for i in range(len(b) - len(a)): - # For each position we could insert it... - current = cost(a, b) - best = None - for j in range(len(a) + 1): - a_0 = a[:j] + [None] + a[j:] - candidate = cost(a_0, b) - if best is None or candidate < best[0]: - best = (candidate, a_0, j) - a = best[1] - return a,b - -class ZipperDiff(object): - """ZipperDiff - Simple (slow) diff only accomodating inserts.""" - - def __init__(self, a, b): - self.a = a - self.b = b - - def dist(self, a, b): - return a != b - - def getDiffs(self): - a,b = insertMinimumPadding(self.a, self.b, self.dist) - for aElt,bElt in zip(a,b): - if self.dist(aElt, bElt): - yield aElt,bElt - -class DriverZipperDiff(ZipperDiff): - def isTempFile(self, filename): - if filename[0] != '"' or filename[-1] != '"': - return False - return (filename.startswith('/tmp/', 1) or - filename.startswith('/var/', 1)) - - def dist(self, a, b): - if a and b and self.isTempFile(a) and self.isTempFile(b): - return 0 - return super(DriverZipperDiff, self).dist(a,b) - -class CompileInfo: - def __init__(self, out, err, res): - self.commands = [] - - # Standard out isn't used for much. - self.stdout = out - self.stderr = '' - - # FIXME: Compare error messages as well. - for ln in err.split('\n'): - if (ln == 'Using built-in specs.' or - ln.startswith('Target: ') or - ln.startswith('Configured with: ') or - ln.startswith('Thread model: ') or - ln.startswith('gcc version') or - ln.startswith('clang version')): - pass - elif ln.strip().startswith('"'): - self.commands.append(list(splitArgs(ln))) - else: - self.stderr += ln + '\n' - - self.stderr = self.stderr.strip() - self.exitCode = res - -def captureDriverInfo(cmd, args): - p = subprocess.Popen([cmd,'-###'] + args, - stdin=None, - stdout=subprocess.PIPE, - stderr=subprocess.PIPE) - out,err = p.communicate() - res = p.wait() - return CompileInfo(out,err,res) - -def main(): - import os, sys - - args = sys.argv[1:] - driverA = os.getenv('DRIVER_A') or 'gcc' - driverB = os.getenv('DRIVER_B') or 'clang' - - infoA = captureDriverInfo(driverA, args) - infoB = captureDriverInfo(driverB, args) - - differ = False - - # Compare stdout. - if infoA.stdout != infoB.stdout: - print '-- STDOUT DIFFERS -' - print 'A OUTPUT: ',infoA.stdout - print 'B OUTPUT: ',infoB.stdout - print - - diff = ZipperDiff(infoA.stdout.split('\n'), - infoB.stdout.split('\n')) - for i,(aElt,bElt) in enumerate(diff.getDiffs()): - if aElt is None: - print 'A missing: %s' % bElt - elif bElt is None: - print 'B missing: %s' % aElt - else: - print 'mismatch: A: %s' % aElt - print ' B: %s' % bElt - - differ = True - - # Compare stderr. - if infoA.stderr != infoB.stderr: - print '-- STDERR DIFFERS -' - print 'A STDERR: ',infoA.stderr - print 'B STDERR: ',infoB.stderr - print - - diff = ZipperDiff(infoA.stderr.split('\n'), - infoB.stderr.split('\n')) - for i,(aElt,bElt) in enumerate(diff.getDiffs()): - if aElt is None: - print 'A missing: %s' % bElt - elif bElt is None: - print 'B missing: %s' % aElt - else: - print 'mismatch: A: %s' % aElt - print ' B: %s' % bElt - - differ = True - - # Compare commands. - for i,(a,b) in enumerate(map(None, infoA.commands, infoB.commands)): - if a is None: - print 'A MISSING:',' '.join(b) - differ = True - continue - elif b is None: - print 'B MISSING:',' '.join(a) - differ = True - continue - - diff = DriverZipperDiff(a,b) - diffs = list(diff.getDiffs()) - if diffs: - print '-- COMMAND %d DIFFERS -' % i - print 'A COMMAND:',' '.join(a) - print 'B COMMAND:',' '.join(b) - print - for i,(aElt,bElt) in enumerate(diffs): - if aElt is None: - print 'A missing: %s' % bElt - elif bElt is None: - print 'B missing: %s' % aElt - else: - print 'mismatch: A: %s' % aElt - print ' B: %s' % bElt - differ = True - - # Compare result codes. - if infoA.exitCode != infoB.exitCode: - print '-- EXIT CODES DIFFER -' - print 'A: ',infoA.exitCode - print 'B: ',infoB.exitCode - differ = True - - if differ: - sys.exit(1) - -if __name__ == '__main__': - main() |
