[Bug 92590] [BSW] [GLES 3.1 CTS] ES31-CTS.shader_storage_buffer_object.* GPU_HANG

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92590

--- Comment #2 from Iago Toral <itoral at igalia.com> ---
(In reply to Kenneth Graunke from comment #1)
> If these pass on Broadwell but break on Braswell, you might see if the SSBO
> code is emitting integer MUL instructions for indirect address calculations.
> CHV/BSW have funky MUL rules...

Yeah, that can happen. I see this for some local ssbo tests I have that use
indirect addressing:

vec1 ssa_7 = f2i ssa_6
vec1 ssa_8 = imul ssa_7, ssa_3
vec1 ssa_9 = iadd ssa_8, ssa_2
ntrinsic store_ssbo_indirect (ssa_1, ssa_0, ssa_9) () (0, 1)

which leads to:

mov(8)          g3<1>D          g2<8,8,1>F               { align1 1Q compacted
};
mul(8)          g4<1>D          g3<8,8,1>D      16D      { align1 1Q compacted
};
add(8)          g6<1>D          g4<8,8,1>D      12D      { align1 1Q compacted
};
send(8)         null            g5<8,8,1>UD
         data ( DC untyped surface write, 1, 46) mlen 3 rlen 0 { align1 1Q };

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