[llvm-commits] Fix floating point numbers in tests on MinGW

[Danil Malyshev]

Hello everyone,

I think I have found a better way to address the "Bug 6745 - .ll output is different on windows" problem.
The tests always expect 2 digits exponent, which is wrong for Windows. So let's force it to be that way by defining PRINTF_EXPONENT_DIGITS environment variable = 2.
See http://sourceforge.net/project/shownotes.php?release_id=24832 for more details.

Please review the attached patch.

The patch has been tested with WinXP, Win7, and Ubuntu.

Thank you,
Danil

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