commit 8fb87aec78b52b6133b4359c24c2407431e8c2a4
author Fariborz Jahanian <fjahanian@apple.com> Fri Sep 24 17:30:16 2010 +0000
committer Fariborz Jahanian <fjahanian@apple.com> Fri Sep 24 17:30:16 2010 +0000
tree 9f6e911138ca10f3d9efaef0f8ff6469daa8b99e
parent cbb421887de951f0d689415522430fcad3c764fd

Patch implements passing arrays to functions expecting
vla. Implements pr7827.

llvm-svn: 114737

clang/lib/CodeGen/CodeGenFunction.cpp

diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index c2016e8..5e301b5 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -625,6 +625,9 @@
   EnsureInsertPoint();
 
   if (const VariableArrayType *VAT = getContext().getAsVariableArrayType(Ty)) {
+    // unknown size indication requires no size computation.
+    if (!VAT->getSizeExpr())
+      return 0;
     llvm::Value *&SizeEntry = VLASizeMap[VAT->getSizeExpr()];
 
     if (!SizeEntry) {