RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

[Matrix] Also run lowering during -O0.

Browse Source 
Currently the backends cannot lower the matrix intrinsics directly and
rely on the lowering to vector instructions happening in the middle-end.
At the moment, this means the backend crashes when matrix types
extension code is compiled with -O0, e.g.
http://green.lab.llvm.org/green/job/test-suite-verify-machineinstrs-aarch64-O0-g/7902/

This patch enables also runs the lowering with -O0 in the middle-end as
a temporary solution. Long term, a lightweight version of the lowering
should run in the backend, on demand.
This commit is contained in:
Florian Hahn 2020-07-16 09:55:34 +01:00
parent 4858da5c88
commit aa7315a8f1
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/IPO/PassManagerBuilder.cpp
View File

@ -294,6 +294,13 @@ void PassManagerBuilder::populateFunctionPassManager(
if (LibraryInfo)
FPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
// The backends do not handle matrix intrinsics currently.
// Make sure they are also lowered in O0.
// FIXME: A lightweight version of the pass should run in the backend
// pipeline on demand.
if (EnableMatrix)
FPM.add(createLowerMatrixIntrinsicsPass());
if (OptLevel == 0) return;
addInitialAliasAnalysisPasses(FPM);