Commit Graph

6 Commits

Author SHA1 Message Date
Reid Kleckner f021fab2af [IR] Make getParamAttributes take argument numbers, not ArgNo+1
Add hasParamAttribute() and use it instead of hasAttribute(ArgNo+1,
Kind) everywhere.

The fact that the AttributeList index for an argument is ArgNo+1 should
be a hidden implementation detail.

NFC

llvm-svn: 300272
2017-04-13 23:12:13 +00:00
Yaxun Liu 76ae47cb35 [AMDGPU] Temporarily change constant address space from 4 to 2
Our final address space mapping is to let constant address space to be 4 to match nvptx.
However for now we will make it 2 to avoid unnecessary work in FE/BE/devlib
about intrinsics returning constant pointers.

Differential Revision: https://reviews.llvm.org/D31770

llvm-svn: 299690
2017-04-06 19:17:32 +00:00
Stanislav Mekhanoshin 12aa5b733e [AMDGPU] Remove assumption that vector and scalar types do not alias
Differential Revision: https://reviews.llvm.org/D31547

llvm-svn: 299250
2017-03-31 20:16:54 +00:00
Jan Vesely 3c99441ef4 AMDGPU/R600: Fix amdgpu alias analysis pass.
R600 uses higher AS number to access kernel parameters

Fixes: r298846
Differential Revision: https://reviews.llvm.org/D31520

llvm-svn: 299245
2017-03-31 19:26:23 +00:00
Yaxun Liu 1a14bfa022 [AMDGPU] Get address space mapping by target triple environment
As we introduced target triple environment amdgiz and amdgizcl, the address
space values are no longer enums. We have to decide the value by target triple.

The basic idea is to use struct AMDGPUAS to represent address space values.
For address space values which are not depend on target triple, use static
const members, so that they don't occupy extra memory space and is equivalent
to a compile time constant.

Since the struct is lightweight and cheap, it can be created on the fly at
the point of usage. Or it can be added as member to a pass and created at
the beginning of the run* function.

Differential Revision: https://reviews.llvm.org/D31284

llvm-svn: 298846
2017-03-27 14:04:01 +00:00
Stanislav Mekhanoshin 8e45acfc38 [AMDGPU] Add address space based alias analysis pass
This is direct port of HSAILAliasAnalysis pass, just cleaned for
style and renamed.

Differential Revision: https://reviews.llvm.org/D31103

llvm-svn: 298172
2017-03-17 23:56:58 +00:00