I totally didn’t know python had a portable way to do that! Updated in r264064.
Thanks! -Chris > On Mar 22, 2016, at 9:26 AM, Vedant Kumar <v...@apple.com> wrote: > > I think setting `cc1_env["LLVM_PROFILE_FILE"] = os.devnull` would be simpler. > > vedant > >> On Mar 21, 2016, at 7:55 PM, Chris Bieneman via cfe-commits >> <cfe-commits@lists.llvm.org> wrote: >> >> Author: cbieneman >> Date: Mon Mar 21 21:55:40 2016 >> New Revision: 264021 >> >> URL: http://llvm.org/viewvc/llvm-project?rev=264021&view=rev >> Log: >> [Perf-training] Fixing an issue with multi-threading PGO generation >> >> When LIT parallelizes the profraw file generation we need to generate unique >> temp filenames then clean them up after the driver executes. >> >> Modified: >> cfe/trunk/utils/perf-training/perf-helper.py >> >> Modified: cfe/trunk/utils/perf-training/perf-helper.py >> URL: >> http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/perf-training/perf-helper.py?rev=264021&r1=264020&r2=264021&view=diff >> ============================================================================== >> --- cfe/trunk/utils/perf-training/perf-helper.py (original) >> +++ cfe/trunk/utils/perf-training/perf-helper.py Mon Mar 21 21:55:40 2016 >> @@ -16,6 +16,7 @@ import argparse >> import time >> import bisect >> import shlex >> +import tempfile >> >> test_env = { 'PATH' : os.environ['PATH'] } >> >> @@ -149,10 +150,12 @@ def cc1(args): >> >> # clear the profile file env, so that we don't generate profdata >> # when capturing the cc1 command >> + handle, profraw_file = tempfile.mkstemp() >> + os.close(handle) >> cc1_env = test_env >> - cc1_env["LLVM_PROFILE_FILE"] = "driver.prfraw" >> + cc1_env["LLVM_PROFILE_FILE"] = profraw_file >> cc1_cmd = get_cc1_command_for_args(cmd, cc1_env) >> - os.remove("driver.prfraw") >> + os.remove(profraw_file) >> >> subprocess.check_call(cc1_cmd) >> return 0; >> >> >> _______________________________________________ >> cfe-commits mailing list >> cfe-commits@lists.llvm.org >> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits > _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
