diff options
| author | Tom Stellard <tstellar@gmail.com> | 2011-02-05 22:39:58 -0800 |
|---|---|---|
| committer | Tom Stellard <tstellar@gmail.com> | 2011-02-05 22:39:58 -0800 |
| commit | 68b701f5ded5f6b73a6b07cf37d862fab4836607 (patch) | |
| tree | 5bf069633ed3e94f7bf6c5606e781775470e7287 /src/mesa/drivers/dri/r300 | |
| parent | 19202284c069b1295d590aa6c04809e5e33bda57 (diff) | |
r300/compiler: Disable register rename pass on r500
The scheduler and the register allocator are not good enough yet to deal
with the effects of the register rename pass. This was causing a 50%
performance drop in Lightsmark. The pass can be re-enabled once the
scheduler and the register allocator are more mature. r300 and r400
still need this pass, because it prevents a lot of shaders from using
too many texture indirections.
NOTE: This is a candidate for the 7.10 branch.
Diffstat (limited to 'src/mesa/drivers/dri/r300')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c index e0d349b98c..1616306afb 100644 --- a/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c +++ b/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c @@ -124,7 +124,7 @@ void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c) /* This pass makes it easier for the scheduler to group TEX * instructions and reduces the chances of creating too * many texture indirections.*/ - {"register rename", 1, !is_r500 || opt, rc_rename_regs, NULL}, + {"register rename", 1, !is_r500, rc_rename_regs, NULL}, {"pair translate", 1, 1, rc_pair_translate, NULL}, {"pair scheduling", 1, 1, rc_pair_schedule, NULL}, {"register allocation", 1, opt, rc_pair_regalloc, NULL}, |