We are now extremelly careful when copy propagating a mov that uses
relative addressing. The search for readers will trigger abort when it
sees any other instruction using a relative addressing, irrespective of
the actual used registers or whether an address register load was seen.
Additionally, since ntt switch all movs using the relative addressing are
actually used only once right on the next line, and are result of ntt converting
vec4 32 ssa_10 = intrinsic load_ubo_vec4 (ssa_0, ssa_9) (access=0, base=11, component=0)
into
5: ARL ADDR[0].x, TEMP[0].xxxx
6: MOV TEMP[2], CONST[0][ADDR[0].x+11]
RV530 shader-db:
total instructions in shared programs: 132966 -> 131904 (-0.80%)
instructions in affected programs: 29896 -> 28834 (-3.55%)
helped: 234
HURT: 2
total temps in shared programs: 16969 -> 16905 (-0.38%)
temps in affected programs: 604 -> 540 (-10.60%)
helped: 68
HURT: 12
Partial fix for: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7723
Signed-off-by: Pavel Ondračka <pavel.ondracka@gmail.com>
Reviewed-by: Filip Gawin <filip@gawin.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20577>
Pavel Ondračka
7ab7b9770e