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Fixed a bug

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1242 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-04-17 18:52:03 +00:00
parent 3dcb7dba3b
commit 99de22ffe2
1 changed files with 10 additions and 5 deletions
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15
src/cc65/coptind.c
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@ -500,8 +500,13 @@ unsigned OptJumpTarget (CodeSeg* S)
/* Get next entry */
E2 = CS_GetNextEntry (S, I);
/* Check if we have a jump or branch, and a matching label */
if (E2 && (E2->Info & OF_UBRA) != 0 && E2->JumpTo) {
/* Check if we have a jump or branch, and a matching label, which
* is not attached to the jump itself
*/
if (E2 != 0 &&
(E2->Info & OF_UBRA) != 0 &&
E2->JumpTo &&
E2->JumpTo->Owner != E2) {
/* Get the entry preceeding the branch target */
T1 = CS_GetPrevEntry (S, CS_GetEntryIndex (S, E2->JumpTo->Owner));
@ -908,7 +913,7 @@ unsigned OptDupLoads (CodeSeg* S)
if (In->RegA >= 0 &&
In->RegA == In->RegX &&
(N = CS_GetNextEntry (S, I)) != 0 &&
!CE_UseLoadFlags (N)) {
!CE_UseLoadFlags (N)) {
/* Value is identical and not followed by a branch */
Delete = 1;
}
@ -967,7 +972,7 @@ unsigned OptDupLoads (CodeSeg* S)
}
/* Free register info */
/* Free register info */
CS_FreeRegInfo (S);
/* Return the number of changes made */
@ -1060,7 +1065,7 @@ unsigned OptTransfers (CodeSeg* S)
*/
if ((X = CS_GetNextEntry (S, I+1)) == 0) {
goto NextEntry;
}
}
if (CE_UseLoadFlags (X)) {
if (I == 0) {
/* No preceeding entry */