handle calls to aliases in asm

3 files changed, 33 insertions, 1 deletions

diff --git a/src/jsifier.js b/src/jsifier.js
index bd0e5e75..3483b8b1 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -375,6 +375,7 @@ function JSify(data, functionsOnly, givenFunctions) {
       var ret = [item];
       item.JS = 'var ' + item.ident + ';';
       // Set the actual value in a postset, since it may be a global variable. We also order by dependencies there
+      Variables.globals[item.ident].targetIdent = item.value.ident;
       var value = Variables.globals[item.ident].resolvedAlias = finalizeLLVMParameter(item.value);
       var fix = '';
       if (BUILD_AS_SHARED_LIB == 2 && !item.private_) {
@@ -1284,6 +1285,7 @@ function JSify(data, functionsOnly, givenFunctions) {
     // We cannot compile assembly. See comment in intertyper.js:'Call'
     assert(ident != 'asm', 'Inline assembly cannot be compiled to JavaScript!');
 
+    ident = Variables.resolveAliasToIdent(ident);
     var shortident = ident.slice(1);
     var callIdent = LibraryManager.getRootIdent(shortident);
     if (callIdent) {
diff --git a/src/modules.js b/src/modules.js
index 712d8a78..afdbc21e 100644
--- a/src/modules.js
+++ b/src/modules.js
@@ -179,7 +179,16 @@ var Variables = {
   globals: {},
   indexedGlobals: {}, // for indexed globals, ident ==> index
   // Used in calculation of indexed globals
-  nextIndexedOffset: 0
+  nextIndexedOffset: 0,
+
+  resolveAliasToIdent: function(ident) {
+    while (1) {
+      var varData = Variables.globals[ident];
+      if (!(varData && varData.targetIdent)) break;
+      ident = varData.targetIdent; // might need to eval to turn (6) into 6
+    }
+    return ident;
+  },
 };
 
 var Types = {
diff --git a/tests/cases/callalias.ll b/tests/cases/callalias.ll
new file mode 100644
index 00000000..9bc1ffd0
--- /dev/null
+++ b/tests/cases/callalias.ll
@@ -0,0 +1,21 @@
+; 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]*]
+
+@othername = alias internal void ()* @doit
+
+define internal void @doit() unnamed_addr nounwind align 2 {
+  %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([15 x i8]* @.str, i32 0, i32 0)) ; [#uses=0 type=i32]
+  ret void
+}
+
+define i32 @main() {
+entry:
+  tail call void ()* @othername() nounwind
+  ret i32 1
+}
+
+declare i32 @printf(i8*, ...)
+