From 75db572e8a7a144b3d6fdc2b148ac3921f77f2b2 Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Tue, 16 Sep 2025 17:24:52 +0200
Subject: implement switch statement

---
 optmem.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'optmem.c')

diff --git a/optmem.c b/optmem.c
index 9e8d1c6..1c137b7 100644
--- a/optmem.c
+++ b/optmem.c
@@ -184,8 +184,8 @@ void
 mem2reg(struct function *fn)
 {
    static struct bitset ssealed[4];
-   struct block *blk = fn->entry;
    struct ssabuilder sb = { .nblk = fn->nblk };
+   struct block *blk;
 
    sb.pendingphis = xcalloc(fn->nblk * sizeof *sb.pendingphis);
    if (fn->nblk <= 64 * arraylength(ssealed)) {
@@ -195,6 +195,9 @@ mem2reg(struct function *fn)
       sb.sealed = xcalloc(BSSIZE(fn->nblk) * sizeof *sb.sealed);
    }
 
+   sortrpo(fn);
+   blk = fn->entry;
+
    do {
       for (int i = 0; i < blk->ins.n; ++i) {
          struct use *use, *uend;
-- 
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