commit a7ced2cb4caa71ff09a4674bf4c7d9890eefb5e9
author Ted Kremenek <kremenek@apple.com> Fri Feb 18 02:27:00 2011 +0000
committer Ted Kremenek <kremenek@apple.com> Fri Feb 18 02:27:00 2011 +0000
tree 1e2f33287dc978db9c0e3655bae75e76d9418aba
parent 14a552b2d71d4a4cf496953f62bc1337cbd8f9dc

Fix assertion failure on -Warray-bounds for 32-bit builds of Clang.

llvm-svn: 125821

clang/lib/Sema/SemaChecking.cpp

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 6b1013d..2cddac5 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3109,11 +3109,14 @@
     return;
 
   if (!index.isNegative()) {
-    const llvm::APInt &size = ArrayTy->getSize();
+    llvm::APInt size = ArrayTy->getSize();
     if (!size.isStrictlyPositive())
       return;
     if (size.getBitWidth() > index.getBitWidth())
       index = index.sext(size.getBitWidth());
+    else if (size.getBitWidth() < index.getBitWidth())
+      size = size.sext(index.getBitWidth());
+
     if (index.slt(size))
       return;