Pierre-Eric Pelloux-Prayer
b5e748b49b
'coord' variable was using TGSI_WRITEMASK_XYZ so subsequent uses of
TGSI_WRITEMASK_W were dropped.
The result for a 2 samples program was:
0: UMAD TEMP[0].xy, SV[1].xyyy, IMM[0].xxxx, SV[0].xyyy
1: STORE IMAGE[0], TEMP[0], TEMP[1], RESTRICT, 2D_MSAA
2: STORE IMAGE[0], TEMP[0], TEMP[2], RESTRICT, 2D_MSAA
3: END
instead of the expected:
0: UMAD TEMP[0].xy, SV[1].xyyy, IMM[0].xxxx, SV[0].xyyy
1: MOV TEMP[0].w, IMM[0].yyyy
2: LOAD TEMP[1], IMAGE[0], TEMP[0], RESTRICT, 2D_MSAA
3: MOV TEMP[0].w, IMM[0].zzzz
4: LOAD TEMP[2], IMAGE[0], TEMP[0], RESTRICT, 2D_MSAA
5: MOV TEMP[0].w, IMM[0].yyyy
6: STORE IMAGE[0], TEMP[0], TEMP[1], RESTRICT, 2D_MSAA
7: MOV TEMP[0].w, IMM[0].zzzz
8: STORE IMAGE[0], TEMP[0], TEMP[2], RESTRICT, 2D_MSAA
9: END
This fixes half of https://gitlab.freedesktop.org/mesa/mesa/issues/2248
Fixes: 095a58204d ("radeonsi: expand FMASK before MSAA image stores are used")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3174>
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