6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-01-21 00:31:53 +00:00
Code Issues Projects Releases Wiki Activity

Better opt chance for certain optimization steps e.g. OptPtrStore1 etc.

Browse Source
This commit is contained in:
acqn 2020-08-31 06:16:36 +08:00 committed by Oliver Schmidt
parent 29d1999947
commit 676b14429d
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/cc65/codeopt.c
View File

@ -1241,10 +1241,10 @@ static unsigned RunOptGroup1 (CodeSeg* S)
Changes += RunOptFunc (S, &DOptGotoSPAdj, 1);
Changes += RunOptFunc (S, &DOptStackPtrOps, 5);
Changes += RunOptFunc (S, &DOptAdd3, 1); /* Before OptPtrLoad5! */
Changes += RunOptFunc (S, &DOptPtrStore1, 1);
Changes += RunOptFunc (S, &DOptPtrStore2, 1);
Changes += RunOptFunc (S, &DOptPtrStore3, 1);
Changes += RunOptFunc (S, &DOptAdd3, 1); /* Before OptPtrLoad5! */
Changes += RunOptFunc (S, &DOptPtrLoad1, 1);
Changes += RunOptFunc (S, &DOptPtrLoad2, 1);
Changes += RunOptFunc (S, &DOptPtrLoad3, 1);
@ -1332,7 +1332,6 @@ static unsigned RunOptGroup3 (CodeSeg* S)
C += RunOptFunc (S, &DOptAdd6, 1);
C += RunOptFunc (S, &DOptJumpCascades, 1);
C += RunOptFunc (S, &DOptDeadJumps, 1);
C += RunOptFunc (S, &DOptRTS, 1);
C += RunOptFunc (S, &DOptDeadCode, 1);
C += RunOptFunc (S, &DOptBoolTrans, 1);
C += RunOptFunc (S, &DOptJumpTarget1, 1);
@ -1487,11 +1486,16 @@ static unsigned RunOptGroup7 (CodeSeg* S)
/* Adjust branch distances */
Changes += RunOptFunc (S, &DOptBranchDist, 3);
/* Replace conditional branches to RTS. If we had changes, we must run dead
** code elimination again, since the change may have introduced dead code.
*/
/* Replace conditional branches to RTS */
C = RunOptFunc (S, &DOptRTSJumps2, 1);
/* Replace JSR followed by RTS to JMP */
C += RunOptFunc (S, &DOptRTS, 1);
Changes += C;
/* If we had changes, we must run dead code elimination again,
** since the changes may have introduced dead code.
*/
if (C) {
Changes += RunOptFunc (S, &DOptDeadCode, 1);
}