Mirrors/shadPS4
1
0
Fork 0
mirror of https://github.com/shadps4-emu/shadPS4.git synced 2025-05-27 13:53:18 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Optimise out unnecessary shifts (#1021)

Browse source
This commit is contained in:
korenkonder 2024-09-22 15:02:20 +03:00 • committed by GitHub
parent 581ddfec4d
commit 5db27109c9
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 18 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/shader_recompiler/ir/ir_emitter.cpp
View file

@ -1079,6 +1079,10 @@ U32 IREmitter::IAbs(const U32& value) {
}
U32U64 IREmitter::ShiftLeftLogical(const U32U64& base, const U32& shift) {
if (shift.IsImmediate() && shift.U32() == 0) {
return base;
}
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftLeftLogical32, base, shift);
@ -1090,6 +1094,10 @@ U32U64 IREmitter::ShiftLeftLogical(const U32U64& base, const U32& shift) {
}
U32U64 IREmitter::ShiftRightLogical(const U32U64& base, const U32& shift) {
if (shift.IsImmediate() && shift.U32() == 0) {
return base;
}
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftRightLogical32, base, shift);
@ -1101,6 +1109,10 @@ U32U64 IREmitter::ShiftRightLogical(const U32U64& base, const U32& shift) {
}
U32U64 IREmitter::ShiftRightArithmetic(const U32U64& base, const U32& shift) {
if (shift.IsImmediate() && shift.U32() == 0) {
return base;
}
switch (base.Type()) {
case Type::U32:
return Inst<U32>(Opcode::ShiftRightArithmetic32, base, shift);