[issue30104] clang 4.0 miscompiles dtoa.c, giving broken float parsing and printing

[Kubilay Kocak]

Kubilay Kocak added the comment:

2.7 branch on koobs-freebsd-current worker doesn't appear to be failing currently, but there may be differences in (or a lack of equivalent) coverage compared to 3.*.

I also note that -fno-strict-aliasing is being included in 2.7's compile arguments:

cc -pthread -c -fno-strict-aliasing -OPT:Olimit=0 -g -O2 -g -O0 -Wall -Wstrict-prototypes

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