2 files changed, 20 insertions, 4 deletions
diff --git a/src/analyzer.js b/src/analyzer.js
index 1c643303..54e1ab43 100644
--- a/src/analyzer.js
+++ b/src/analyzer.js
@@ -1223,8 +1223,7 @@ function analyzer(data, sidePass) {
         var lines = func.labels[0].lines;
         for (var i = 0; i < lines.length; i++) {
           var item = lines[i];
-          if (!item.assignTo || item.intertype != 'alloca') break;
-          assert(isNumber(item.allocatedNum));
+          if (!item.assignTo || item.intertype != 'alloca' || !isNumber(item.allocatedNum)) break;
           item.allocatedSize = func.variables[item.assignTo].impl === VAR_EMULATED ?
             calcAllocatedSize(item.allocatedType)*item.allocatedNum: 0;
           if (USE_TYPED_ARRAYS === 2) {
@@ -1235,7 +1234,7 @@ function analyzer(data, sidePass) {
         var index = 0;
         for (var i = 0; i < lines.length; i++) {
           var item = lines[i];
-          if (!item.assignTo || item.intertype != 'alloca') break;
+          if (!item.assignTo || item.intertype != 'alloca' || !isNumber(item.allocatedNum)) break;
           item.allocatedIndex = index;
           index += item.allocatedSize;
           delete item.allocatedSize;
@@ -1260,7 +1259,7 @@ function analyzer(data, sidePass) {
           var finishedInitial = false;
           for (var i = 0; i < lines.length; i++) {
             var item = lines[i];
-            if (!item.assignTo || item.intertype != 'alloca') {
+            if (!item.assignTo || item.intertype != 'alloca' || !isNumber(item.allocatedNum)) {
               finishedInitial = true;
               continue;
             }
diff --git a/tests/cases/allocavartop.ll b/tests/cases/allocavartop.ll
new file mode 100644
index 00000000..e9520a19
--- /dev/null
+++ b/tests/cases/allocavartop.ll
@@ -0,0 +1,17 @@
+; ModuleID = 'tests/hello_world.bc'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
+target triple = "i386-pc-linux-gnu"
+
+@.str = private unnamed_addr constant [15 x i8] c"hello, world!\0A\00", align 1 ; [#uses=1 type=[15 x i8]*]
+
+; [#uses=0]
+define i32 @main(i32 %argc) {
+entry:
+  %retval = alloca i32, i32 %argc, align 4                   ; [#uses=1 type=i32*]
+  store i32 0, i32* %retval
+  %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([15 x i8]* @.str, i32 0, i32 0)) ; [#uses=0 type=i32]
+  ret i32 1
+}
+
+; [#uses=1]
+declare i32 @printf(i8*, ...)