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3 Commits

Author SHA1 Message Date
Alexander Timofeev 8f483e6fc2 [AMDGPU] Preliminary patch for divergence driven instruction selection. Immediate selection predicate changed 
Differential revision: https://reviews.llvm.org/D51734
Reviewers: rampitec

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341928 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-09-11 11:56:50 +00:00
Matt Arsenault 6241a83e35 AMDGPU: Restrict extract_vector_elt combine to loads 
The intention is to enable the extract_vector_elt load combine,
and doing this for other operations interferes with more
useful optimizations on vectors.

Handle any type of load since in principle we should do the
same combine for the various load intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341219 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-08-31 15:39:52 +00:00
Matt Arsenault a0d83d520e AMDGPU: Custom lower fexp 
This will allow the library to just use __builtin_expf directly
without expanding this itself. Note f64 still won't work because
there is no exp instruction for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339902 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-08-16 17:07:52 +00:00