RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 20:09:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

AMDGPU: Hoist check for VGPRs

Browse Source
This commit is contained in:
Matt Arsenault 2020-09-09 16:58:52 -04:00
parent cc5cc5b57a
commit cc42fa16c4
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/Target/AMDGPU/SIInsertWaitcnts.cpp
View File

@ -1026,8 +1026,10 @@ bool SIInsertWaitcnts::generateWaitcntInstBefore(
continue;
RegInterval Interval =
ScoreBrackets.getRegInterval(&MI, TII, MRI, TRI, I);
const bool IsVGPR = TRI->isVGPR(*MRI, Op.getReg());
for (int RegNo = Interval.first; RegNo < Interval.second; ++RegNo) {
if (TRI->isVGPR(*MRI, Op.getReg())) {
if (IsVGPR) {
// RAW always needs an s_waitcnt. WAW needs an s_waitcnt unless the
// previous write and this write are the same type of VMEM
// instruction, in which case they're guaranteed to write their