Running WINE tests with Gallium Nine enabled I found the following test to fail on pre R800 cards.
The failing test is from wine d3d9/tests/visual.c test_mova().
It can be found here: https://source.winehq.org/ident?_i=test_mova&_remember=1
To issue doesn't exists on radeonsi, softpipe and R800+.
The problem seems to be TGSI_OPCODE_ARR that should round on FLT_TO_INT, but pre R800 cards truncate instead.
This might result in wrong addressing, as TGSI_OPCODE_ARR is expected to round.
If the card doesn't support rounding on FLT_TO_INT, r600 driver should insert a rounding instruction.
Tested with latest mesa git on RV770.
Created attachment 122172 [details] [review]
patch r600_shader.c to insert a ALU_OP1_RNDNE instruction on pre r8xx cards for TGSI_OPCODE_ARR
The code in question isn't used by anything non-r600/r700, thus a switch isn't warranted.
(I think it would look nicer if the arl/arr cases were merged and use a conditional to select the rounding instruction too.)
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