steam-frame/FEX-Emu--FEX
1
0 Fork 0
mirror of https://github.com/FEX-Emu/FEX.git synced 2026-10-14 07:00:43 +02:00
Code Issues Packages Projects Releases 67 Wiki Activity

Arm64/VectorOps: Elide moves in ASIMD VUShrNI2 if possible

Browse Source 
In the event the destination and lower source are the same, then
we don't need to perform any moves.
This commit is contained in:
Lioncache committed 2023-09-17 15:49:54 -04:00
1 parent 8168a49d10
commit 047646be6d
1 file changed
+11 -3
Download Patch File Download Diff File Expand all files Collapse all files
FEXCore/Source/Interface/Core/JIT/Arm64/VectorOps.cpp
+11 -3
View File
@@ -3078,9 +3078,17 @@ DEF_OP(VUShrNI2) {
}
splice<ARMEmitter::OpType::Destructive>(SubRegSize, Dst.Z(), Mask, Dst.Z(), VTMP2.Z());
} else {
mov(VTMP1.Q(), VectorLower.Q());
shrn2(SubRegSize, VTMP1.Q(), VectorUpper.Q(), BitShift);
mov(Dst.Q(), VTMP1.Q());
auto Lower = VectorLower;
if (Dst != VectorLower) {
mov(VTMP1.Q(), VectorLower.Q());
Lower = VTMP1;
}
shrn2(SubRegSize, Lower.Q(), VectorUpper.Q(), BitShift);
if (Dst != VectorLower) {
mov(Dst.Q(), Lower.Q());
}
}
}