compiler's eliminate_empty_basic_blocks does not remove empty block if it is the last in the compilation unit #95922
Description
Because of the next->b_next in the loop condition, this does not remove an empty basic block at the end. I put an assert and saw that this can happen.
for (basicblock *b = entryblock; b != NULL; b = b->b_next) {
basicblock *next = b->b_next;
if (next) {
while (next->b_iused == 0 && next->b_next) {
next = next->b_next;
}
b->b_next = next;
}
}