diff options
| author | Dave Airlie <airlied@redhat.com> | 2017-10-11 09:48:21 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-10-11 10:11:36 +1000 |
| commit | 2d36efdb7f18f061c519dbb93f6058bf161aad33 (patch) | |
| tree | 29795485442092ab04339cfa3227ee58d7bb5881 | |
| parent | 5be3fdfa327902d6385e3469ae76cca948091464 (diff) | |
nir: bump loop unroll limit to 96.
With the ssao demo from Vulkan demos:
radv/rx480: 440->440fps
anv/haswell: 24->34 fps
The demo does a 0->32 loop across a ubo with 32 members.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/compiler/nir/nir_opt_loop_unroll.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/compiler/nir/nir_opt_loop_unroll.c b/src/compiler/nir/nir_opt_loop_unroll.c index 79d04f978b..dae5bfc902 100644 --- a/src/compiler/nir/nir_opt_loop_unroll.c +++ b/src/compiler/nir/nir_opt_loop_unroll.c @@ -33,8 +33,10 @@ * to give about the same results. Around 5 instructions per node. But some * loops that would unroll with GLSL IR fail to unroll if we set this to 25 so * we set it to 26. + * This was bumped to 96 because it unrolled more loops with a positive + * effect (vulkan ssao demo). */ -#define LOOP_UNROLL_LIMIT 26 +#define LOOP_UNROLL_LIMIT 96 /* Prepare this loop for unrolling by first converting to lcssa and then * converting the phis from the loops first block and the block that follows |