[Bug 104971] Test failures on 32 bit Mesa compiled with GCC 7.x

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Feb 9 19:13:54 UTC 2018


Francisco Jerez <currojerez at riseup.net> changed:

           What    |Removed                     |Added
                 CC|                            |currojerez at riseup.net

--- Comment #5 from Francisco Jerez <currojerez at riseup.net> ---
Apparently the gen_builtin_packing_tests.py generator goes through some effort
to allow different encodings for each subtest with an ambiguous result, but for
this specific one the two rounding modes which are considered at all by the
generator yield the same result 0xe666, so it only emits one check into the
shader, even though the GLSL spec allows for round(0xe665.8) to give either
0xe665 or 0xe666 as a result.

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