Suyu/dynarmic
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/dynarmic.git synced 2025-12-24 08:14:55 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

backend/x64/emit_x64_vector: Prevent undefined behavior within VectorSignedSaturatedShiftLeft

Browse source 
Avoids undefined behavior by potentially left-shifting a signed negative
value.
This commit is contained in:
Lioncash 2019-04-01 19:53:46 -04:00 • committed by MerryMage
parent 46eae8cf2f
commit b37279f65c
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/backend/x64/emit_x64_vector.cpp
View file

@ -3838,7 +3838,7 @@ static bool VectorSignedSaturatedShiftLeft(VectorArray<T>& dst, const VectorArra
dst[i] = saturate(element);
qc_flag = true;
} else {
const T shifted = element << shift;
const T shifted = T(U(element) << shift);
if ((shifted >> shift) != element) {
dst[i] = saturate(element);