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authorDan Liew <daniel.liew@imperial.ac.uk>2015-12-17 19:50:46 +0000
committerDan Liew <daniel.liew@imperial.ac.uk>2015-12-17 19:50:46 +0000
commit7e75fa79b2e76251c2cd417a7eae8a7620b014ae (patch)
treeae9ec3684edbea3125b046b924dfda14d60031db /lib/Core/Memory.cpp
parent901bd2c429ac51dd143a2a4bfc07c382dfb21e72 (diff)
downloadklee-7e75fa79b2e76251c2cd417a7eae8a7620b014ae.tar.gz
Clean up the check in the previous commit by using one of KLEE's
helper functions.
Diffstat (limited to 'lib/Core/Memory.cpp')
-rw-r--r--lib/Core/Memory.cpp5
1 files changed, 1 insertions, 4 deletions
diff --git a/lib/Core/Memory.cpp b/lib/Core/Memory.cpp
index 47bc7576..12ca7104 100644
--- a/lib/Core/Memory.cpp
+++ b/lib/Core/Memory.cpp
@@ -529,10 +529,7 @@ void ObjectState::write(unsigned offset, ref<Expr> value) {
   // Check for writes of constant values.
   if (ConstantExpr *CE = dyn_cast<ConstantExpr>(value)) {
     Expr::Width w = CE->getWidth();
-    //assuming width can't be 0 so I can miss half of power of two check
-    assert(w > 0);
-    //also checks that w is a power of two
-    if (w <= 64 && !(w & (w - 1))) {
+    if (w <= 64 && klee::bits64::isPowerOfTwo(w)) {
       uint64_t val = CE->getZExtValue();
       switch (w) {
       default: assert(0 && "Invalid write size!");