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Commit Graph

6 Commits

Author SHA1 Message Date
Matt Arsenault
515e95accf AMDGPU: Use gfx9 carry-less add/sub instructions
llvm-svn: 319491
2017-11-30 22:51:26 +00:00
Stanislav Mekhanoshin
c47c44e786 [AMDGPU] New 64 bit div/rem expansion
Old expansion was 20 VGPRs, 78 SGPRs and ~380 instructions.
This expansion is 11 VGPRs, 12 SGPRs and ~120 instructions.

Passes OpenCL conformance test_integer_ops quick_[u]long_math

Differential Revision: https://reviews.llvm.org/D38607

llvm-svn: 315081
2017-10-06 17:24:45 +00:00
Matt Arsenault
dd9ab77318 AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel
Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.

Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).

llvm-svn: 298444
2017-03-21 21:39:51 +00:00
Matt Arsenault
81a9bfe915 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
44230570f6 AMDGPU: Fix high bits after division optimization
This is essentially doing a 24-bit signed division with FP.
We need to truncate to the N bit result.

llvm-svn: 270305
2016-05-21 01:53:33 +00:00
Tom Stellard
3f1708598e R600 -> AMDGPU rename
llvm-svn: 239657
2015-06-13 03:28:10 +00:00