[issue20932] Undefined behavior flagged by Clang 3.4 (Python 3.5 from hg)

[Benjamin Peterson]

Benjamin Peterson added the comment:

No, it still gives

/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1811:9: runtime error: left shift of negative value -22
/home/benjamin/dev/python/3.4/Modules/audioop.c:1587:39: runtime error: left shift of negative value -5504
/home/benjamin/dev/python/3.4/Modules/audioop.c:1546:19: runtime error: left shift of negative value -5504
/home/benjamin/dev/python/3.4/Modules/audioop.c:1546:19: runtime error: left shift of negative value -1409024
/home/benjamin/dev/python/3.4/Modules/audioop.c:1639:19: runtime error: left shift of negative value -69
/home/benjamin/dev/python/3.4/Modules/audioop.c:1639:19: runtime error: left shift of negative value -17767
/home/benjamin/dev/python/3.4/Modules/audioop.c:1639:19: runtime error: left shift of negative value -4548489
/home/benjamin/dev/python/3.4/Modules/audioop.c:1546:19: runtime error: left shift of negative value -69
/home/benjamin/dev/python/3.4/Modules/audioop.c:1244:19: runtime error: left shift of negative value -69
/home/benjamin/dev/python/3.4/Modules/audioop.c:1244:19: runtime error: left shift of negative value -17767
/home/benjamin/dev/python/3.4/Modules/audioop.c:1244:19: runtime error: left shift of negative value -4548489
/home/benjamin/dev/python/3.4/Modules/audioop.c:1473:19: runtime error: left shift of negative value -69
/home/benjamin/dev/python/3.4/Modules/audioop.c:1473:19: runtime error: left shift of negative value -17767
/home/benjamin/dev/python/3.4/Modules/audioop.c:1473:19: runtime error: left shift of negative value -4548489
/home/benjamin/dev/python/3.4/Modules/audioop.c:1418:31: runtime error: left shift of negative value -69
/home/benjamin/dev/python/3.4/Modules/audioop.c:1418:31: runtime error: left shift of negative value -17767
/home/benjamin/dev/python/3.4/Modules/audioop.c:1418:31: runtime error: left shift of negative value -4548489
/home/benjamin/dev/python/3.4/Modules/audioop.c:1513:43: runtime error: left shift of negative value -32124

You, too, can build with the undefined behavior sanitizer using the helpful instructions at http://docs.python.org/devguide/clang.html

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20932>
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