[Mesa-dev] [Bug 105052] compiler/test_eu_compact failure with GCC 8

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105052

Francisco Jerez <currojerez at riseup.net> changed:

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

--- Comment #2 from Francisco Jerez <currojerez at riseup.net> ---
Created attachment 137473
  --> https://bugs.freedesktop.org/attachment.cgi?id=137473&action=edit
0001-intel-ir-Fix-invalid-type-aliasing-with-undefined-be.patch

Does it go away with the attached patch? I had it in a branch that was making
some unrelated changes which just happened to affect the order instructions are
emitted by GCC in the test_fuzz_compact_instruction() function, causing the bit
twiddling to be done after the clear_pad_bits() call which modifies the same
data through a pointer of different type, leading to undefined behavior.  I had
seen this happen on GCC 7.

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