improve relooper debugging

Author: kripken

src/relooper/Relooper.cpp

@@ -1029,12 +1029,12 @@ void Relooper::SetAsmJSMode(int On) {
 void DebugDump(BlockSet &Blocks, const char *prefix) {
   if (prefix) printf("%s ", prefix);
   for (BlockSet::iterator iter = Blocks.begin(); iter != Blocks.end(); iter++) {
-    printf("%d:\n", (*iter)->Id);
-    for (BlockBranchMap::iterator iter2 = (*iter)->BranchesOut.begin(); iter2 != (*iter)->BranchesOut.end(); iter2++) {
-      printf("  OUT %d\n", iter2->first->Id);
-    }
-    for (BlockSet::iterator iter2 = (*iter)->BranchesIn.begin(); iter2 != (*iter)->BranchesIn.end(); iter2++) {
-      printf("  IN  %d\n", (*iter2)->Id);
+    Block *Curr = *iter;
+    printf("%d:\n", Curr->Id);
+    for (BlockBranchMap::iterator iter2 = Curr->BranchesOut.begin(); iter2 != Curr->BranchesOut.end(); iter2++) {
+      Block *Other = iter2->first;
+      printf("  -> %d\n", Other->Id);
+      assert(Other->BranchesIn.find(Curr) != Other->BranchesIn.end());
     }
   }
 }

src/relooper/test_debug.txt

@@ -34,86 +34,72 @@ int main() {
 // Process() called
 // Process() running
   blocks :  1:
-  OUT 2
-  OUT 4
+  -> 2
+  -> 4
 2:
-  OUT 3
-  OUT 4
-  IN  1
+  -> 3
+  -> 4
 3:
-  OUT 4
-  IN  2
+  -> 4
 4:
-  IN  1
-  IN  2
-  IN  3
   entries:  1:
-  OUT 2
-  OUT 4
+  -> 2
+  -> 4
 // creating simple block with block #1
 // Solipsizing branches into 2
   relevant to solipsize:  1:
-  OUT 2
-  OUT 4
+  -> 2
+  -> 4
 //   eliminated branch from 1
 // Solipsizing branches into 4
   relevant to solipsize:  1:
-  OUT 4
+  -> 4
 //   eliminated branch from 1
 // Process() running
   blocks :  2:
-  OUT 3
-  OUT 4
+  -> 3
+  -> 4
 3:
-  OUT 4
-  IN  2
+  -> 4
 4:
-  IN  2
-  IN  3
   entries:  2:
-  OUT 3
-  OUT 4
+  -> 3
+  -> 4
 4:
-  IN  2
-  IN  3
 // Investigated independent groups:
  group:  2:
-  OUT 3
-  OUT 4
+  -> 3
+  -> 4
 3:
-  OUT 4
-  IN  2
+  -> 4
 // Independent groups: 1
 // Handleable independent groups: 1
 // creating multiple block with 1 inner groups
 //   multiple group with entry 2:
      2:
-  OUT 3
-  OUT 4
+  -> 3
+  -> 4
 3:
-  OUT 4
-  IN  2
+  -> 4
 // Solipsizing branches into 4
   relevant to solipsize:  2:
-  OUT 3
-  OUT 4
+  -> 3
+  -> 4
 3:
-  OUT 4
-  IN  2
+  -> 4
 //   eliminated branch from 2
 //   eliminated branch from 3
 // Process() called
 // Process() running
   blocks :  2:
-  OUT 3
+  -> 3
 3:
-  IN  2
   entries:  2:
-  OUT 3
+  -> 3
 // creating simple block with block #2
 // Solipsizing branches into 3
   relevant to solipsize:  2:
-  OUT 3
+  -> 3
 //   eliminated branch from 2
 // Process() running
   blocks :  3: