Rename Cretonne to Cranelift!

cranelift/filetests/domtree/loops.clif

@@ -0,0 +1,104 @@
+test domtree
+
+function %test(i32) {
+    ebb0(v0: i32):
+        brz v0, ebb1  ; dominates: ebb1 ebb3 ebb4 ebb5
+        jump ebb2     ; dominates: ebb2
+    ebb1:
+        jump ebb3
+    ebb2:
+        brz v0, ebb4
+        jump ebb5
+    ebb3:
+        jump ebb4
+    ebb4:
+        brz v0, ebb3
+        jump ebb5
+    ebb5:
+        brz v0, ebb4
+        return
+}
+; Fall-through-first, prune-at-source DFT:
+;
+; ebb0 {
+;     ebb0:brz v0, ebb1 {
+;         ebb0:jump ebb2 {
+;             ebb2 {
+;                 ebb2:brz v2, ebb2 -
+;                 ebb2:brz v3, ebb1 -
+;                 ebb2:brz v4, ebb4 {
+;                     ebb2: jump ebb5 {
+;                         ebb5 {}
+;                     }
+;                     ebb4 {}
+;                 }
+;             } ebb2
+;         }
+;         ebb1 {
+;             ebb1:jump ebb3 {
+;                 ebb3 {}
+;             }
+;         } ebb1
+;     }
+; } ebb0
+;
+; check: cfg_postorder:
+; sameln: ebb5
+; sameln: ebb3
+; sameln: ebb4
+; sameln: ebb2
+; sameln: ebb1
+; sameln: ebb0
+
+; check: domtree_preorder {
+; nextln: ebb0: ebb1 ebb2 ebb4 ebb3 ebb5
+; nextln: ebb1:
+; nextln: ebb2:
+; nextln: ebb4:
+; nextln: ebb3:
+; nextln: ebb5:
+; nextln: }
+
+function %loop2(i32) system_v {
+    ebb0(v0: i32):
+        brz v0, ebb1    ; dominates: ebb1 ebb3 ebb4 ebb5
+        jump ebb2       ; dominates: ebb2
+    ebb1:
+        jump ebb3
+    ebb2:
+        brz v0, ebb4
+        jump ebb5
+    ebb3:
+        jump ebb4
+    ebb4:
+        brz v0, ebb3
+        brnz v0, ebb5
+        jump ebb6       ; dominates: ebb6
+    ebb5:
+        brz v0, ebb4
+        trap user0
+    ebb6:
+        jump ebb7       ; dominates: ebb7
+    ebb7:
+        return
+}
+; check: cfg_postorder:
+; sameln: ebb5
+; sameln: ebb7
+; sameln: ebb6
+; sameln: ebb3
+; sameln: ebb4
+; sameln: ebb2
+; sameln: ebb1
+; sameln: ebb0
+
+; check: domtree_preorder {
+; nextln: ebb0: ebb1 ebb2 ebb4 ebb3 ebb5
+; nextln: ebb1:
+; nextln: ebb2:
+; nextln: ebb4: ebb6
+; nextln: ebb6: ebb7
+; nextln: ebb7:
+; nextln: ebb3:
+; nextln: ebb5:
+; nextln: }