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4 Commits

Author SHA1 Message Date
Matt Arsenault d0799df707 AMDGPU: Stop checking intrinsics not used by HSA for dispatch-ptr 
Only the dispatch.ptr intrinsic is supposed to be used now to get
the workgroup size, and the read.local.size intrinsics do not
work correctly.

llvm-svn: 259296
 2016-01-30 05:10:59 +00:00
Matt Arsenault 43976df0da AMDGPU: Add new amdgcn workitem intrinsics 
These use the correct prefix and follow the HSA naming convention
rather than the config register option names.

llvm-svn: 259293
 2016-01-30 04:25:19 +00:00
Tom Stellard 48f29f21ee AMDGPU: Add llvm.amdgcn.dispatch.ptr intrinsic 
Summary:
This returns a pointer to the dispatch packet, which can be used to load
information about the kernel dispach.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D14898

llvm-svn: 254116
 2015-11-26 00:43:29 +00:00
Matt Arsenault 3931948bb6 AMDGPU: Add pass to detect used kernel features 
Mark kernels that use certain features that require user
SGPRs to support with kernel attributes. We need to know
before instruction selection begins because it impacts
the kernel calling convention lowering.

For now this only detects the workitem intrinsics.

llvm-svn: 252323
 2015-11-06 18:01:57 +00:00