Commit Graph

4 Commits

Author SHA1 Message Date
Tim Renouf c84795ff0d [AMDGPU] Prepare for introduction of v3 and v5 MVTs
AMDGPU would like to have MVTs for v3i32, v3f32, v5i32, v5f32. This
commit does not add them, but makes preparatory changes:

* Fixed assumptions of power-of-2 vector type in kernel arg handling,
  and added v5 kernel arg tests and v3/v5 shader arg tests.

* Added v5 tests for cost analysis.

* Added vec3/vec5 arg test cases.

Some of this patch is from Matt Arsenault, also of AMD.

Differential Revision: https://reviews.llvm.org/D58928

Change-Id: I7279d6b4841464d2080eb255ef3c589e268eabcd

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356342 91177308-0d34-0410-b5e6-96231b3b80d8
2019-03-17 21:04:16 +00:00
Matt Arsenault c11234753f AMDGPU: Make some packed shuffles free
VOP3P instructions can encode access to either
half of the register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302730 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-10 21:29:33 +00:00
Matt Arsenault d706d030af 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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298444 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-21 21:39:51 +00:00
Matt Arsenault 2320de6adb AMDGPU: Report extractelement as free in cost model
The cost for scalarized operations is computed as N * (scalar operation
cost + 1 extractelement + 1 insertelement). This partially fixes
inflating the cost of scalarized operations since every operation is
scalarized and free. I don't think we want any cost asociated with
scalarization, but for now insertelement is still counted. I'm not sure
if we should pretend that insertelement is also free, or add a way
to compute a custom scalarization cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254438 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-01 19:08:39 +00:00