diff gen/toir.cpp @ 1292:ad41053c336e

Make static int[] a = [1, 2]; a[0] = 4; not segfault by making the array data ptr a non-const global variable.
author Christian Kamm <kamm incasoftware de>
date Sun, 03 May 2009 11:16:54 +0200
parents dd4766851b37
children a41a40deff73
line wrap: on
line diff
--- a/gen/toir.cpp	Sat May 02 20:42:58 2009 +0200
+++ b/gen/toir.cpp	Sun May 03 11:16:54 2009 +0200
@@ -2405,7 +2405,9 @@
         return initval;
 
     // for dynamic arrays we need to put the initializer in a global, and build a constant dynamic array reference with the .ptr field pointing into this global
-    LLConstant* globalstore = new LLGlobalVariable(arrtype, true, LLGlobalValue::InternalLinkage, initval, ".dynarrayStorage", p->module);
+    // Important: don't make the global constant, since this const initializer might
+    // be used as an initializer for a static T[] - where modifying contents is allowed.
+    LLConstant* globalstore = new LLGlobalVariable(arrtype, false, LLGlobalValue::InternalLinkage, initval, ".dynarrayStorage", p->module);
     LLConstant* idxs[2] = { DtoConstUint(0), DtoConstUint(0) };
     LLConstant* globalstorePtr = llvm::ConstantExpr::getGetElementPtr(globalstore, idxs, 2);