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Update comment about __sync_lock_test_and_set() bug.

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State the earliest known fixed version, so we can someday judge the
workaround to be obsolete.
This commit is contained in:
Noah Misch 2019-10-26 12:55:06 -07:00
parent cfb7559083
commit e653c714c2
1 changed files with 1 additions and 1 deletions
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src/include/port/atomics.h
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@ -89,7 +89,7 @@
/* /*
* gcc or compatible, including clang and icc. Exclude xlc. The ppc64le "IBM * gcc or compatible, including clang and icc. Exclude xlc. The ppc64le "IBM
* XL C/C++ for Linux, V13.1.2" emulates gcc, but __sync_lock_test_and_set() * XL C/C++ for Linux, V13.1.2" emulates gcc, but __sync_lock_test_and_set()
* of one-byte types elicits SIGSEGV. * of one-byte types elicits SIGSEGV. That bug was gone by V13.1.5 (2016-12).
*/ */
#if (defined(__GNUC__) || defined(__INTEL_COMPILER)) && !(defined(__IBMC__) || defined(__IBMCPP__)) #if (defined(__GNUC__) || defined(__INTEL_COMPILER)) && !(defined(__IBMC__) || defined(__IBMCPP__))
#include "port/atomics/generic-gcc.h" #include "port/atomics/generic-gcc.h"