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run branch fixer again after replacing BRA by JMP. should fix #1936

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This commit is contained in:
mrdudz 2022-12-11 12:08:30 +01:00
parent 299f764c5d
commit ddab16007a
2 changed files with 97 additions and 0 deletions
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4
src/cc65/codeopt.c
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@ -850,6 +850,10 @@ static unsigned RunOptGroup7 (CodeSeg* S)
C += RunOptFunc (S, &DOptJumpCascades, 1);
C += RunOptFunc (S, &DOptBranchDist2, 1);
/* Adjust branch distances again, since the previous step may change code
between branches */
C += RunOptFunc (S, &DOptBranchDist, 3);
Changes += C;
/* If we had changes, we must run dead code elimination again,
** since the changes may have introduced dead code.

93
test/misc/bug1936.c Normal file
View File

@ -0,0 +1,93 @@
/* bug #1936 - Compiler produces broken Assembly (129 operand for bne) */
#include <stdint.h>
static uint8_t item_counter;
static uint8_t freeze;
static uint8_t powerUp;
static uint8_t wall_appeared;
static uint8_t freeze_locked;
static uint8_t zombie_locked;
struct ItemStruct
{
uint8_t _active;
void(*_effect)(void);
} ;
typedef struct ItemStruct Item;
static Item freezeItem;
static Item powerUpItem;
static Item wallItem;
static Item zombieItem;
static Item extraPointsItem[1];
uint8_t find_inactive(Item* itemArray)
{
}
void drop_item(register Item *item, uint8_t max_counter)
{
}
void handle_item_drop(void)
{
{
if(item_counter==1)
{
if(!powerUpItem._active)
{
drop_item(&powerUpItem,35);
}
}
else if((!freeze_locked)&&(!freeze))
{
if(!freezeItem._active)
{
drop_item(&freezeItem,45);
}
}
else if(!wall_appeared&&(powerUp>=9))
{
if(!wallItem._active)
{
drop_item(&wallItem,35);
}
}
else if(!zombie_locked && !zombieItem._active)
{
drop_item(&zombieItem,50);
}
else
{
uint8_t index;
index = find_inactive(extraPointsItem);
if(index!=1) // REMARK: compilation does not fail with 0
{
drop_item(&extraPointsItem[index],90);
}
}
}
}
int main(void)
{
while(1) // Game (re-)start
{
}
return 0;
}