added optimization for indexed 16-bit array load of form (array[i & 0x7f])

[cc65] / src / cc65 / codeopt.c

diff --git a/src/cc65/codeopt.c b/src/cc65/codeopt.c
index db63ba8e77555a9503634f7e50ec1d2bb0c964ce..d920f001a6134488cad838e84aa3302a56e45db3 100644 (file)
--- a/src/cc65/codeopt.c
+++ b/src/cc65/codeopt.c
@@ -815,6 +815,7 @@ static OptFunc DOptPtrLoad15    = { OptPtrLoad15,    "OptPtrLoad15",     86, 0,
 static OptFunc DOptPtrLoad16    = { OptPtrLoad16,    "OptPtrLoad16",    100, 0, 0, 0, 0, 0 };
 static OptFunc DOptPtrLoad17    = { OptPtrLoad17,    "OptPtrLoad17",    190, 0, 0, 0, 0, 0 };
 static OptFunc DOptPtrLoad18    = { OptPtrLoad18,    "OptPtrLoad18",    100, 0, 0, 0, 0, 0 };
+static OptFunc DOptPtrLoad19    = { OptPtrLoad19,    "OptPtrLoad19",     65, 0, 0, 0, 0, 0 };
 static OptFunc DOptPtrStore1    = { OptPtrStore1,    "OptPtrStore1",     65, 0, 0, 0, 0, 0 };
 static OptFunc DOptPtrStore2    = { OptPtrStore2,    "OptPtrStore2",     65, 0, 0, 0, 0, 0 };
 static OptFunc DOptPtrStore3    = { OptPtrStore3,    "OptPtrStore3",    100, 0, 0, 0, 0, 0 };
@@ -907,6 +908,7 @@ static OptFunc* OptFuncs[] = {
     &DOptPtrLoad16,
     &DOptPtrLoad17,
     &DOptPtrLoad18,
+    &DOptPtrLoad19,
     &DOptPtrLoad2,
     &DOptPtrLoad3,
     &DOptPtrLoad4,
@@ -1256,6 +1258,7 @@ static unsigned RunOptGroup1 (CodeSeg* S)
     Changes += RunOptFunc (S, &DOptPtrLoad15, 1);
     Changes += RunOptFunc (S, &DOptPtrLoad16, 1);
     Changes += RunOptFunc (S, &DOptPtrLoad17, 1);
+    Changes += RunOptFunc (S, &DOptPtrLoad19, 1);
     Changes += RunOptFunc (S, &DOptBNegAX1, 1);
     Changes += RunOptFunc (S, &DOptBNegAX2, 1);
     Changes += RunOptFunc (S, &DOptBNegAX3, 1);