Commit Graph

5 Commits

Author SHA1 Message Date
Matt Arsenault 7aad8fd8f4 Enable FeatureFlatForGlobal on Volcanic Islands
This switches to the workaround that HSA defaults to
for the mesa path.

This should be applied to the 4.0 branch.

Patch by Vedran Miletić <vedran@miletic.net>

llvm-svn: 292982
2017-01-24 22:02:15 +00:00
Matt Arsenault a9dbdcae04 AMDGPU: Add atomic_inc + atomic_dec intrinsics
These are different than atomicrmw add 1 because they have
an additional input value to clamp the result.

llvm-svn: 266074
2016-04-12 14:05:04 +00:00
Tom Stellard 0bc954e3bc AMDGPU/SI: Enable lanemask tracking in misched
Summary:
This results in higher register usage, but should make it easier for
the compiler to hide latency.

This pass is a prerequisite for some more scheduler improvements, and I
think the increase register usage with this patch is acceptable, because
when combined with the scheduler improvements, the total register usage
will decrease.

shader-db stats:

2382 shaders in 478 tests
Totals:
SGPRS: 48672 -> 49088 (0.85 %)
VGPRS: 34148 -> 34847 (2.05 %)
Code Size: 1285816 -> 1289128 (0.26 %) bytes
LDS: 28 -> 28 (0.00 %) blocks
Scratch: 492544 -> 573440 (16.42 %) bytes per wave
Max Waves: 6856 -> 6846 (-0.15 %)
Wait states: 0 -> 0 (0.00 %)

Depends on D18451

Reviewers: nhaehnle, arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D18452

llvm-svn: 264876
2016-03-30 16:35:09 +00:00
Matt Arsenault 30d37a74da AMDGPU: Remove atomic inc/dec patterns
There is no benefit to these since materializing the constant 1
requires the same number of instructions as materializing uint_max

llvm-svn: 264215
2016-03-23 23:23:38 +00:00
Tom Stellard 45bb48ea19 R600 -> AMDGPU rename
llvm-svn: 239657
2015-06-13 03:28:10 +00:00