Fixes #738: Check ebbs used in jump tables in the verifier;

2019-04-16 17:48:15 +02:00
parent 3b1583ebb7
commit 274415d5ee
2 changed files with 39 additions and 5 deletions
--- a/cranelift/filetests/filetests/verifier/jump_table.clif
+++ b/cranelift/filetests/filetests/verifier/jump_table.clif
@@ -0,0 +1,19 @@
+test verifier
+
+function %br_invalid_default(i64) {
+    jt0 = jump_table [ebb1, ebb1]
+
+ebb0(v0: i64):
+    br_table.i64 v0, ebb2, jt0 ; error: invalid ebb reference ebb2
+ebb1:
+    return
+}
+
+function %br(i64) {
+    jt0 = jump_table [ebb1, ebb2] ; error: invalid ebb reference ebb2
+
+ebb0(v0: i64):
+    br_table.i64 v0, ebb1, jt0
+ebb1:
+    return
+}