Tom Stellard
c53f76cc0b
AMDGPU : Add S_SETREG instructions to fix fdiv precision issues.
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Patch By: Wei Ding
Summary: This patch fixes the fdiv precision issues.
Reviewers: b-sumner, cfang, wdng, arsenm
Subscribers: kzhuravl, nhaehnle, yaxunl, tony-tye
Differential Revision: https://reviews.llvm.org/D26424
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288879 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-07 02:42:15 +00:00
Matt Arsenault
63be72069d
AMDGPU: Change fdiv lowering based on !fpmath metadata
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If 2.5 ulp is acceptable, denormals are not required, and
isn't a reciprocal which will already be handled, replace
with a faster fdiv.
Simplify the lowering tests by using per function
subtarget features.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276051 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-19 23:16:53 +00:00
Matt Arsenault
9ddc329c4e
AMDGPU: Fix fdiv lowering when f32 denormals supported
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Also fix test not actually using function labels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274969 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-09 07:48:11 +00:00
Wei Ding
39ce7152a2
AMDGPU/SI: Fix 32-bit fdiv lowering
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We were using the fast fdiv lowering for all division, implementation of
IEEE754 fdiv is added.
http://reviews.llvm.org/D20557
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272292 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-09 19:17:15 +00:00
Eric Christopher
c2a7f10882
Revert "Differential Revision: http://reviews.llvm.org/D20557 "
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Author: Wei Ding <wei.ding2@amd.com >
Date: Tue Jun 7 19:04:44 2016 +0000
Differential Revision: http://reviews.llvm.org/D20557
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272044
91177308-0d34-0410-b5e6-96231b3b80d8
as it was breaking the bots.
This reverts commit r272044.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272056 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 20:27:12 +00:00
Wei Ding
e2d1122183
Differential Revision: http://reviews.llvm.org/D20557
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272044 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 19:04:44 +00:00
Matt Arsenault
d707747418
AMDGPU: Run r600 tests last
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268672 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-05 20:07:37 +00:00
Tom Stellard
953c681473
R600 -> AMDGPU rename
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239657 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-13 03:28:10 +00:00
