fuse elses to remove unnecessary label settings and checks, after we simplified ifs

1 files changed, 51 insertions, 1 deletions

diff --git a/tools/test-js-optimizer-si.js b/tools/test-js-optimizer-si.js
index def2b5d9..78683d6c 100644
--- a/tools/test-js-optimizer-si.js
+++ b/tools/test-js-optimizer-si.js
@@ -125,5 +125,55 @@ function a() {
   } else {
     label = 5;
   }
+  fuseElses();
+  if (x) {
+    if (y) {
+      f();
+    } else {
+      label = 5;
+    }
+  } else {
+    label = 5;
+  }
+  if ((label|0) == 5) {
+    label = 0;
+    a();
+  }
+  if (x) {
+    if (y) {
+      f();
+    } else {
+      label = 5;
+    }
+  } else {
+    label = 5;
+  }
+  if ((label|0) == 6) {
+    label = 0;
+    a();
+  }
+  if (x) {
+    if (y) {
+      f();
+    } else {
+      label = 5;
+    }
+  } else {
+    label = 5;
+  }
+  if ((label|0) == 5) {
+    a();
+  }
+}
+function b() {
+  if (x) { // will not be fused, since we did not eliminate with elses
+    a();
+  } else {
+    label = 5;
+  }
+  if ((label|0) == 5) {
+    label = 0;
+    a();
+  }
 }
-
+// EMSCRIPTEN_GENERATED_FUNCTIONS: ["a", "b"]