Andrey Semashev 13845129c4 Extended the workaround for missing support for ax:dx pairs in asm statements. ...

Apparently, gcc versions up to 4.6, inclusively, have problems allocating
eax:edx register pairs in asm statements for 32-bit x86 targets. Included those
compilers in the existing workaround.

Also, for clang removed the use of __sync-based workarounds for exchange()
implementation and use the asm branch with the workaround. It should produce
a more efficient code.

2018-02-02 16:19:37 +03:00

..

boost

Extended the workaround for missing support for ax:dx pairs in asm statements.

2018-02-02 16:19:37 +03:00