backend: general simplification pass skeleton

1 files changed, 4 insertions, 1 deletions

diff --git a/ir/ir.c b/ir/ir.c
index 8ae41a9..5f1797c 100644
--- a/ir/ir.c
+++ b/ir/ir.c
@@ -221,7 +221,7 @@ addpred(struct block *blk, struct block *p)
    xbpush(&blk->_pred, &blk->npred, p);
 }
 
-static void
+void
 delpred(struct block *blk, struct block *p)
 {
    for (int i = 0; i < blk->npred; ++i) {
@@ -640,6 +640,9 @@ irfini(struct function *fn)
       mem2reg(fn);
       copyopt(fn);
    }
+   if (ccopt.o >= OPT1) {
+      simpl(fn);
+   }
    if (ccopt.dbg.o) {
       bfmt(ccopt.dbgout, "<< Before isel >>\n");
       irdump(fn);