blob: 9b2df90ad3900ff9b60295e8b71a870a93bfada0 [file] [log] [blame]
Chandler Carruth06a5dd62015-01-12 04:43:18 +00001#!/usr/bin/env python2.7
2
3"""A test case update script.
4
5This script is a utility to update LLVM X86 'llc' based test cases with new
6FileCheck patterns. It can either update all of the tests in the file or
7a single test function.
8"""
9
10import argparse
Sanjay Patel506fd0d2016-03-24 17:30:38 +000011import os # Used to advertise this file's name ("autogenerated_note").
Chandler Carruth06a5dd62015-01-12 04:43:18 +000012import string
13import subprocess
14import sys
Chandler Carruth06a5dd62015-01-12 04:43:18 +000015import re
16
Sanjay Patelbf623012016-03-23 21:40:53 +000017# Invoke the tool that is being tested.
Chandler Carruth06a5dd62015-01-12 04:43:18 +000018def llc(args, cmd_args, ir):
19 with open(ir) as ir_file:
20 stdout = subprocess.check_output(args.llc_binary + ' ' + cmd_args,
21 shell=True, stdin=ir_file)
Simon Pilgrim6b6dcc42016-01-27 21:13:18 +000022 # Fix line endings to unix CR style.
23 stdout = stdout.replace('\r\n', '\n')
Chandler Carruth06a5dd62015-01-12 04:43:18 +000024 return stdout
25
26
Sanjay Patelbf623012016-03-23 21:40:53 +000027# RegEx: this is where the magic happens.
28
Eli Friedman1a9a8872016-12-19 23:09:51 +000029ASM_FUNCTION_X86_RE = re.compile(
30 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
31 r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
Zvi Rackoverd635eeb2017-09-06 23:04:28 +000032 r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)',
Eli Friedman1a9a8872016-12-19 23:09:51 +000033 flags=(re.M | re.S))
Eli Friedman1a9a8872016-12-19 23:09:51 +000034
35ASM_FUNCTION_ARM_RE = re.compile(
36 r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function)
37 r'\s+\.fnstart\n' # .fnstart
38 r'(?P<body>.*?)\n' # (body of the function)
Chandler Carruth5c69dac2017-08-25 02:32:48 +000039 r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
Eli Friedman1a9a8872016-12-19 23:09:51 +000040 flags=(re.M | re.S))
Sanjay Patelbf623012016-03-23 21:40:53 +000041
Sanjay Patelb2f62a9e2017-08-25 19:33:18 +000042ASM_FUNCTION_AARCH64_RE = re.compile(
43 r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@(?P=func)\n'
44 r'[ \t]+.cfi_startproc\n'
45 r'(?P<body>.*?)\n'
46 # This list is incomplete
47 r'.Lfunc_end[0-9]+:\n',
48 flags=(re.M | re.S))
Chandler Carruth06a5dd62015-01-12 04:43:18 +000049
Tim Shen53ddc1d2016-12-22 20:59:39 +000050ASM_FUNCTION_PPC_RE = re.compile(
51 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
52 r'\.Lfunc_begin[0-9]+:\n'
53 r'[ \t]+.cfi_startproc\n'
54 r'(?:\.Lfunc_[gl]ep[0-9]+:\n(?:[ \t]+.*?\n)*)*'
55 r'(?P<body>.*?)\n'
56 # This list is incomplete
57 r'(?:^[ \t]*(?:\.long[ \t]+[^\n]+|\.quad[ \t]+[^\n]+)\n)*'
58 r'.Lfunc_end[0-9]+:\n',
59 flags=(re.M | re.S))
60
Alex Bradbury86f971c2017-11-08 14:24:42 +000061ASM_FUNCTION_RISCV_RE = re.compile(
62 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
63 r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
64 r'.Lfunc_end[0-9]+:\n',
65 flags=(re.M | re.S))
66
Jonas Paulssonf20386d2017-03-17 07:11:42 +000067ASM_FUNCTION_SYSTEMZ_RE = re.compile(
68 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
69 r'[ \t]+.cfi_startproc\n'
70 r'(?P<body>.*?)\n'
71 r'.Lfunc_end[0-9]+:\n',
72 flags=(re.M | re.S))
73
Chandler Carruth06a5dd62015-01-12 04:43:18 +000074
Sanjay Patelb2f62a9e2017-08-25 19:33:18 +000075SCRUB_WHITESPACE_RE = re.compile(r'(?!^(| \w))[ \t]+', flags=re.M)
76SCRUB_TRAILING_WHITESPACE_RE = re.compile(r'[ \t]+$', flags=re.M)
77SCRUB_KILL_COMMENT_RE = re.compile(r'^ *#+ +kill:.*\n')
78SCRUB_LOOP_COMMENT_RE = re.compile(
79 r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)
80
81SCRUB_X86_SHUFFLES_RE = (
82 re.compile(
83 r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$',
84 flags=re.M))
85SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)')
86SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
87SCRUB_X86_LCP_RE = re.compile(r'\.LCPI[0-9]+_[0-9]+')
Sanjay Patelf1735a52017-10-20 21:55:23 +000088SCRUB_X86_RET_RE = re.compile(r'ret[l|q]')
Sanjay Patelb2f62a9e2017-08-25 19:33:18 +000089
90RUN_LINE_RE = re.compile('^\s*;\s*RUN:\s*(.*)$')
91TRIPLE_ARG_RE = re.compile(r'-mtriple=([^ ]+)')
92TRIPLE_IR_RE = re.compile(r'^target\s+triple\s*=\s*"([^"]+)"$')
93IR_FUNCTION_RE = re.compile('^\s*define\s+(?:internal\s+)?[^@]*@(\w+)\s*\(')
94CHECK_PREFIX_RE = re.compile('--?check-prefix(?:es)?=(\S+)')
95CHECK_RE = re.compile(r'^\s*;\s*([^:]+?)(?:-NEXT|-NOT|-DAG|-LABEL)?:')
96
Sanjay Patel9db5da22017-10-24 14:32:52 +000097def scrub_asm_x86(asm, args):
Chandler Carruth06a5dd62015-01-12 04:43:18 +000098 # Scrub runs of whitespace out of the assembly, but leave the leading
99 # whitespace in place.
Sanjay Patelbf623012016-03-23 21:40:53 +0000100 asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000101 # Expand the tabs used for indentation.
102 asm = string.expandtabs(asm, 2)
103 # Detect shuffle asm comments and hide the operands in favor of the comments.
Sanjay Patelbf623012016-03-23 21:40:53 +0000104 asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000105 # Generically match the stack offset of a memory operand.
Sanjay Patelbf623012016-03-23 21:40:53 +0000106 asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000107 # Generically match a RIP-relative memory operand.
Sanjay Patelbf623012016-03-23 21:40:53 +0000108 asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
Simon Pilgrim2b7c02a2016-06-11 20:39:21 +0000109 # Generically match a LCP symbol.
110 asm = SCRUB_X86_LCP_RE.sub(r'{{\.LCPI.*}}', asm)
Sanjay Patel9db5da22017-10-24 14:32:52 +0000111 if args.x86_extra_scrub:
112 # Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
113 asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000114 # Strip kill operands inserted into the asm.
Sanjay Patelbf623012016-03-23 21:40:53 +0000115 asm = SCRUB_KILL_COMMENT_RE.sub('', asm)
Chandler Carruthe3750952015-02-04 10:46:48 +0000116 # Strip trailing whitespace.
Sanjay Patelbf623012016-03-23 21:40:53 +0000117 asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000118 return asm
119
Sanjay Patel9db5da22017-10-24 14:32:52 +0000120def scrub_asm_arm_eabi(asm, args):
Eli Friedman1a9a8872016-12-19 23:09:51 +0000121 # Scrub runs of whitespace out of the assembly, but leave the leading
122 # whitespace in place.
123 asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
124 # Expand the tabs used for indentation.
125 asm = string.expandtabs(asm, 2)
126 # Strip kill operands inserted into the asm.
127 asm = SCRUB_KILL_COMMENT_RE.sub('', asm)
128 # Strip trailing whitespace.
129 asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
130 return asm
131
Sanjay Patel9db5da22017-10-24 14:32:52 +0000132def scrub_asm_powerpc64(asm, args):
Tim Shen53ddc1d2016-12-22 20:59:39 +0000133 # Scrub runs of whitespace out of the assembly, but leave the leading
134 # whitespace in place.
135 asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
136 # Expand the tabs used for indentation.
137 asm = string.expandtabs(asm, 2)
Tim Shence26a452017-03-23 16:02:47 +0000138 # Stripe unimportant comments
139 asm = SCRUB_LOOP_COMMENT_RE.sub(r'', asm)
Tim Shen53ddc1d2016-12-22 20:59:39 +0000140 # Strip trailing whitespace.
141 asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
142 return asm
143
Alex Bradbury2af11912017-11-09 20:01:25 +0000144def scrub_asm_riscv(asm, args):
Alex Bradbury86f971c2017-11-08 14:24:42 +0000145 # Scrub runs of whitespace out of the assembly, but leave the leading
146 # whitespace in place.
147 asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
148 # Expand the tabs used for indentation.
149 asm = string.expandtabs(asm, 2)
150 # Strip trailing whitespace.
151 asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
152 return asm
153
Sanjay Patel9db5da22017-10-24 14:32:52 +0000154def scrub_asm_systemz(asm, args):
Jonas Paulssonf20386d2017-03-17 07:11:42 +0000155 # Scrub runs of whitespace out of the assembly, but leave the leading
156 # whitespace in place.
157 asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)
158 # Expand the tabs used for indentation.
159 asm = string.expandtabs(asm, 2)
160 # Strip trailing whitespace.
161 asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
162 return asm
163
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000164
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000165# Build up a dictionary of all the function bodies.
Tim Shen53ddc1d2016-12-22 20:59:39 +0000166def build_function_body_dictionary(raw_tool_output, triple, prefixes, func_dict,
Sanjay Patel9db5da22017-10-24 14:32:52 +0000167 args):
Tim Shen53ddc1d2016-12-22 20:59:39 +0000168 target_handlers = {
169 'x86_64': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
170 'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
171 'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
172 'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
Sanjay Patelb2f62a9e2017-08-25 19:33:18 +0000173 'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
Tim Shen53ddc1d2016-12-22 20:59:39 +0000174 'arm-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
Sanjay Patel588e4152017-02-24 21:47:44 +0000175 'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
176 'thumbv8-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
Eli Friedman7e0ce822017-02-24 03:04:11 +0000177 'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
Fangrui Songdc168722017-10-22 18:43:23 +0000178 'powerpc64': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
179 'powerpc64le': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
Alex Bradbury86f971c2017-11-08 14:24:42 +0000180 'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
181 'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
Jonas Paulssonf20386d2017-03-17 07:11:42 +0000182 's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
Tim Shen53ddc1d2016-12-22 20:59:39 +0000183 }
184 handlers = None
185 for prefix, s in target_handlers.items():
186 if triple.startswith(prefix):
187 handlers = s
188 break
189 else:
190 raise KeyError('Triple %r is not supported' % (triple))
191
192 scrubber, function_re = handlers
Eli Friedman1a9a8872016-12-19 23:09:51 +0000193 for m in function_re.finditer(raw_tool_output):
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000194 if not m:
195 continue
196 func = m.group('func')
Sanjay Patel9db5da22017-10-24 14:32:52 +0000197 scrubbed_body = scrubber(m.group('body'), args)
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000198 if func.startswith('stress'):
199 # We only use the last line of the function body for stress tests.
200 scrubbed_body = '\n'.join(scrubbed_body.splitlines()[-1:])
Sanjay Patel9db5da22017-10-24 14:32:52 +0000201 if args.verbose:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000202 print >>sys.stderr, 'Processing function: ' + func
203 for l in scrubbed_body.splitlines():
204 print >>sys.stderr, ' ' + l
205 for prefix in prefixes:
206 if func in func_dict[prefix] and func_dict[prefix][func] != scrubbed_body:
207 if prefix == prefixes[-1]:
208 print >>sys.stderr, ('WARNING: Found conflicting asm under the '
209 'same prefix: %r!' % (prefix,))
210 else:
211 func_dict[prefix][func] = None
212 continue
213
214 func_dict[prefix][func] = scrubbed_body
215
216
Tim Shen53ddc1d2016-12-22 20:59:39 +0000217def add_checks(output_lines, run_list, func_dict, func_name):
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000218 printed_prefixes = []
Tim Shen53ddc1d2016-12-22 20:59:39 +0000219 for p in run_list:
220 checkprefixes = p[0]
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000221 for checkprefix in checkprefixes:
222 if checkprefix in printed_prefixes:
223 break
224 if not func_dict[checkprefix][func_name]:
225 continue
226 # Add some space between different check prefixes.
227 if len(printed_prefixes) != 0:
228 output_lines.append(';')
229 printed_prefixes.append(checkprefix)
230 output_lines.append('; %s-LABEL: %s:' % (checkprefix, func_name))
231 func_body = func_dict[checkprefix][func_name].splitlines()
232 output_lines.append('; %s: %s' % (checkprefix, func_body[0]))
233 for func_line in func_body[1:]:
234 output_lines.append('; %s-NEXT: %s' % (checkprefix, func_line))
235 # Add space between different check prefixes and the first line of code.
236 # output_lines.append(';')
237 break
238 return output_lines
239
240
241def should_add_line_to_output(input_line, prefix_set):
242 # Skip any blank comment lines in the IR.
243 if input_line.strip() == ';':
244 return False
245 # Skip any blank lines in the IR.
246 #if input_line.strip() == '':
247 # return False
248 # And skip any CHECK lines. We're building our own.
249 m = CHECK_RE.match(input_line)
250 if m and m.group(1) in prefix_set:
251 return False
252
253 return True
254
255
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000256def main():
257 parser = argparse.ArgumentParser(description=__doc__)
258 parser.add_argument('-v', '--verbose', action='store_true',
259 help='Show verbose output')
260 parser.add_argument('--llc-binary', default='llc',
261 help='The "llc" binary to use to generate the test case')
262 parser.add_argument(
263 '--function', help='The function in the test file to update')
Sanjay Patel9db5da22017-10-24 14:32:52 +0000264 parser.add_argument(
265 '--x86_extra_scrub', action='store_true',
266 help='Use more regex for x86 matching to reduce diffs between various subtargets')
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000267 parser.add_argument('tests', nargs='+')
268 args = parser.parse_args()
269
James Y Knight7c905062015-11-23 21:33:58 +0000270 autogenerated_note = ('; NOTE: Assertions have been autogenerated by '
Simon Pilgrim2b7c02a2016-06-11 20:39:21 +0000271 'utils/' + os.path.basename(__file__))
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000272
273 for test in args.tests:
274 if args.verbose:
275 print >>sys.stderr, 'Scanning for RUN lines in test file: %s' % (test,)
276 with open(test) as f:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000277 input_lines = [l.rstrip() for l in f]
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000278
Tim Shen53ddc1d2016-12-22 20:59:39 +0000279 triple_in_ir = None
280 for l in input_lines:
281 m = TRIPLE_IR_RE.match(l)
282 if m:
283 triple_in_ir = m.groups()[0]
284 break
285
Bryant Wong291264b2016-12-29 19:32:34 +0000286 raw_lines = [m.group(1)
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000287 for m in [RUN_LINE_RE.match(l) for l in input_lines] if m]
Bryant Wong291264b2016-12-29 19:32:34 +0000288 run_lines = [raw_lines[0]] if len(raw_lines) > 0 else []
289 for l in raw_lines[1:]:
Bryant Wong507256b2016-12-29 20:05:51 +0000290 if run_lines[-1].endswith("\\"):
291 run_lines[-1] = run_lines[-1].rstrip("\\") + " " + l
292 else:
293 run_lines.append(l)
Bryant Wong291264b2016-12-29 19:32:34 +0000294
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000295 if args.verbose:
296 print >>sys.stderr, 'Found %d RUN lines:' % (len(run_lines),)
297 for l in run_lines:
298 print >>sys.stderr, ' RUN: ' + l
299
Tim Shen53ddc1d2016-12-22 20:59:39 +0000300 run_list = []
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000301 for l in run_lines:
Zvi Rackover35a5acf2016-11-07 17:47:21 +0000302 commands = [cmd.strip() for cmd in l.split('|', 1)]
303 llc_cmd = commands[0]
Tim Shen53ddc1d2016-12-22 20:59:39 +0000304
305 triple_in_cmd = None
306 m = TRIPLE_ARG_RE.search(llc_cmd)
307 if m:
308 triple_in_cmd = m.groups()[0]
309
Zvi Rackover35a5acf2016-11-07 17:47:21 +0000310 filecheck_cmd = ''
311 if len(commands) > 1:
312 filecheck_cmd = commands[1]
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000313 if not llc_cmd.startswith('llc '):
314 print >>sys.stderr, 'WARNING: Skipping non-llc RUN line: ' + l
315 continue
316
317 if not filecheck_cmd.startswith('FileCheck '):
318 print >>sys.stderr, 'WARNING: Skipping non-FileChecked RUN line: ' + l
319 continue
320
321 llc_cmd_args = llc_cmd[len('llc'):].strip()
322 llc_cmd_args = llc_cmd_args.replace('< %s', '').replace('%s', '').strip()
323
Nikolai Bozhenov33ee40e2017-01-14 09:39:35 +0000324 check_prefixes = [item for m in CHECK_PREFIX_RE.finditer(filecheck_cmd)
325 for item in m.group(1).split(',')]
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000326 if not check_prefixes:
327 check_prefixes = ['CHECK']
328
329 # FIXME: We should use multiple check prefixes to common check lines. For
330 # now, we just ignore all but the last.
Tim Shen53ddc1d2016-12-22 20:59:39 +0000331 run_list.append((check_prefixes, llc_cmd_args, triple_in_cmd))
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000332
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000333 func_dict = {}
Tim Shen53ddc1d2016-12-22 20:59:39 +0000334 for p in run_list:
335 prefixes = p[0]
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000336 for prefix in prefixes:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000337 func_dict.update({prefix: dict()})
Tim Shen53ddc1d2016-12-22 20:59:39 +0000338 for prefixes, llc_args, triple_in_cmd in run_list:
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000339 if args.verbose:
340 print >>sys.stderr, 'Extracted LLC cmd: llc ' + llc_args
341 print >>sys.stderr, 'Extracted FileCheck prefixes: ' + str(prefixes)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000342
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000343 raw_tool_output = llc(args, llc_args, test)
Tim Shen53ddc1d2016-12-22 20:59:39 +0000344 if not (triple_in_cmd or triple_in_ir):
345 print >>sys.stderr, "Cannot find a triple. Assume 'x86'"
346
347 build_function_body_dictionary(raw_tool_output,
Sanjay Patel9db5da22017-10-24 14:32:52 +0000348 triple_in_cmd or triple_in_ir or 'x86', prefixes, func_dict, args)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000349
350 is_in_function = False
351 is_in_function_start = False
Zvi Rackover18082ab2016-11-07 18:08:19 +0000352 func_name = None
Tim Shen53ddc1d2016-12-22 20:59:39 +0000353 prefix_set = set([prefix for p in run_list for prefix in p[0]])
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000354 if args.verbose:
355 print >>sys.stderr, 'Rewriting FileCheck prefixes: %s' % (prefix_set,)
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000356 output_lines = []
357 output_lines.append(autogenerated_note)
James Y Knight7c905062015-11-23 21:33:58 +0000358
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000359 for input_line in input_lines:
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000360 if is_in_function_start:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000361 if input_line == '':
362 continue
363 if input_line.lstrip().startswith(';'):
364 m = CHECK_RE.match(input_line)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000365 if not m or m.group(1) not in prefix_set:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000366 output_lines.append(input_line)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000367 continue
368
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000369 # Print out the various check lines here.
Tim Shen53ddc1d2016-12-22 20:59:39 +0000370 output_lines = add_checks(output_lines, run_list, func_dict, func_name)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000371 is_in_function_start = False
372
373 if is_in_function:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000374 if should_add_line_to_output(input_line, prefix_set) == True:
375 # This input line of the function body will go as-is into the output.
376 output_lines.append(input_line)
377 else:
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000378 continue
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000379 if input_line.strip() == '}':
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000380 is_in_function = False
381 continue
382
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000383 if input_line == autogenerated_note:
James Y Knight7c905062015-11-23 21:33:58 +0000384 continue
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000385
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000386 # If it's outside a function, it just gets copied to the output.
387 output_lines.append(input_line)
388
389 m = IR_FUNCTION_RE.match(input_line)
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000390 if not m:
391 continue
Zvi Rackover18082ab2016-11-07 18:08:19 +0000392 func_name = m.group(1)
393 if args.function is not None and func_name != args.function:
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000394 # When filtering on a specific function, skip all others.
395 continue
396 is_in_function = is_in_function_start = True
397
398 if args.verbose:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000399 print>>sys.stderr, 'Writing %d lines to %s...' % (len(output_lines), test)
400
Simon Pilgrim6b6dcc42016-01-27 21:13:18 +0000401 with open(test, 'wb') as f:
Sanjay Patelf3c5f462016-03-24 17:15:42 +0000402 f.writelines([l + '\n' for l in output_lines])
Chandler Carruth06a5dd62015-01-12 04:43:18 +0000403
404
405if __name__ == '__main__':
406 main()