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PR libstdc++/5198 * config/cpu/m68k/bits/atomicity.h (__exchange_and_add): Only use CAS on the cpu variants that support it. Add versions that use TAS and that disable interrupts. (__atomic_add): Use __exchange_and_add to guarantee atomicity. From-SVN: r49160 |
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alpha/bits | ||
arm/bits | ||
cris/bits | ||
generic/bits | ||
i386/bits | ||
i486/bits | ||
ia64/bits | ||
m68k/bits | ||
mips/bits | ||
powerpc/bits | ||
s390/bits | ||
sparc | ||
x86-64/bits |