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VarAction2: Combine RST, UMIN sequence to load with neq 0 adjust

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Jonathan G Rennison
2022-06-03 15:34:50 +01:00
parent 9116ca6bb0
commit 04a9c73ec2
1 changed files with 9 additions and 0 deletions
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9
src/newgrf.cpp
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@@ -5920,6 +5920,15 @@ static void OptimiseVarAction2Adjust(VarAction2OptimiseState &state, const GrfSp
break; break;
} else { } else {
state.inference = VA2AIF_SIGNED_NON_NEGATIVE | VA2AIF_ONE_OR_ZERO; state.inference = VA2AIF_SIGNED_NON_NEGATIVE | VA2AIF_ONE_OR_ZERO;
if (group->adjusts.size() >= 2) {
DeterministicSpriteGroupAdjust &prev = group->adjusts[group->adjusts.size() - 2];
if (prev.operation == DSGA_OP_RST && prev.type == DSGA_TYPE_NONE) {
prev.type = DSGA_TYPE_NEQ;
prev.add_val = 0;
group->adjusts.pop_back();
state.inference |= VA2AIF_SINGLE_LOAD;
}
}
} }
} }
break; break;