Commit Graph

8 Commits

Author SHA1 Message Date
Fangrui Song a36ddf0aa9 Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351 2019-12-24 16:27:51 -08:00
Philip Pfaffe 2e171b52ee [Acc] Update testcases for minor changes in the PPCG mapper and
statement naming

- A recent ppcg/isl update caused the grid/block size upper bounds to
deviate by one from the oracle. This is not an effect that's visible at
runtime.
- Statement naming changed in polly. Update the testcases.

llvm-svn: 333090
2018-05-23 14:56:57 +00:00
Siddharth Bhat 9e3db2b756 [PPCGCodeGen] [3/3] Update PPCGCodeGen + tests to latest ppcg.
This commit *WILL COMPILE*.

1. `PPCG` now uses `isl_multi_pw_aff` instead of an array of `pw_aff`.
   This needs us to adjust how we index array bounds and how we construct
   array bounds.

2. `PPCG` introduces two new kinds of nodes: `init_device` and `clear_device`.
   We should investigate what the correct way to handle these are.

3. `PPCG` has gotten smarter with its use of live range reordering, so some of
   the tests have a qualitative improvement.

4. `PPCG` changed its output style, so many test cases need to be updated to
   fit the new style for `polly-acc-dump-code` checks.

Differential Revision: https://reviews.llvm.org/D35677

llvm-svn: 308625
2017-07-20 15:48:36 +00:00
Tobias Grosser d58acf866a [GPGPU] Ensure arrays where only parts are modified are copied to GPU
To do so we change the way array exents are computed. Instead of the precise
set of memory locations accessed, we now compute the extent as the range between
minimal and maximal address in the first dimension and the full extent defined
by the sizes of the inner array dimensions.

We also move the computation of the may_persist region after the construction
of the arrays, as it relies on array information. Without arrays being
constructed no useful information is computed at all.

llvm-svn: 278212
2016-08-10 10:58:19 +00:00
Tobias Grosser 2d58a64e7f GPGPU: Bail out of scops with hoisted invariant loads
This is currently not supported and will only be added later. Also update the
test cases to ensure no invariant code hoisting is applied.

llvm-svn: 275987
2016-07-19 15:56:25 +00:00
Tobias Grosser 5260c041ea GPGPU: Emit in-kernel synchronization statements
We use this opportunity to further classify the different user statements that
can arise and add TODOs for the ones not yet implemented.

llvm-svn: 275957
2016-07-19 07:33:16 +00:00
Tobias Grosser b9fc860a57 GPGPU: collect array references
Initialize the list of references to a GPU array to ensure that the arrays that
need to be passed to kernel calls are computed correctly.  Furthermore, the very
same information is also necessary to compute synchronization correctly. As the
functionality to compute these references is already available, what is left for
us to do is only to connect the necessary functionality to compute array
reference information.

llvm-svn: 275798
2016-07-18 15:44:32 +00:00
Tobias Grosser 2025173494 GPGPU: Format statements scheduled on the host ourselves
Otherwise ppcg would try to call into pet functionality that this not available,
which obviously will cause trouble. As we can easily print these statements
ourselves, we just do so.

llvm-svn: 275579
2016-07-15 17:12:41 +00:00