Rename Cretonne to Cranelift!

cranelift/filetests/regalloc/unreachable_code.clif

@@ -0,0 +1,47 @@
+; Use "test compile" here otherwise the dead blocks won't be eliminated.
+test compile
+
+set probestack_enabled=0
+target x86_64 haswell
+
+; This function contains unreachable blocks which trip up the register
+; allocator if they don't get cleared out.
+function %unreachable_blocks(i64 vmctx) -> i32 baldrdash {
+ebb0(v0: i64):
+    v1 = iconst.i32 0
+    v2 = iconst.i32 0
+    jump ebb2
+
+ebb2:
+    jump ebb4
+
+ebb4:
+    jump ebb2
+
+; Everything below this point is unreachable.
+
+ebb3(v3: i32):
+    v5 = iadd.i32 v2, v3
+    jump ebb6
+
+ebb6:
+    jump ebb6
+
+ebb7(v6: i32):
+    v7 = iadd.i32 v5, v6
+    jump ebb8
+
+ebb8:
+    jump ebb10
+
+ebb10:
+    jump ebb8
+
+ebb9(v8: i32):
+    v10 = iadd.i32 v7, v8
+    jump ebb1(v10)
+
+ebb1(v11: i32):
+    return v11
+}
+