aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm12/utils/DSAclean.py
blob: edc00c7f601bcc7f9f58d909b791394c3d69fd3a (plain) (blame)
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
30
31
32
33
34
35
#!/usr/bin/env python
 
#changelog:  
#10/13/2005b: replaced the # in tmp(.#*)* with alphanumeric and _, this will then remove 
#nodes such as %tmp.1.i and %tmp._i.3 
#10/13/2005: exntended to remove variables of the form %tmp(.#)* rather than just  
#%tmp.#, i.e. it now will remove %tmp.12.3.15 etc, additionally fixed a spelling error in 
#the comments 
#10/12/2005: now it only removes nodes and edges for which the label is %tmp.# rather 
#than removing all lines for which the lable CONTAINS %tmp.# 
 
from __future__ import print_function 
 
import re 
import sys 
if( len(sys.argv) < 3 ): 
	print('usage is: ./DSAclean <dot_file_to_be_cleaned> <out_put_file>') 
	sys.exit(1) 
#get a file object 
input = open(sys.argv[1], 'r') 
output = open(sys.argv[2], 'w') 
#we'll get this one line at a time...while we could just put the whole thing in a string 
#it would kill old computers 
buffer = input.readline() 
while buffer != '': 
	if re.compile("label(\s*)=(\s*)\"\s%tmp(.\w*)*(\s*)\"").search(buffer): 
		#skip next line, write neither this line nor the next 
		buffer = input.readline() 
	else: 
		#this isn't a tmp Node, we can write it 
		output.write(buffer) 
	#prepare for the next iteration 
	buffer = input.readline() 
input.close() 
output.close()