[llvm-commits] CVS: llvm/lib/Support/APInt.cpp

[Zhou Sheng]

Changes in directory llvm/lib/Support:

APInt.cpp updated: 1.69 -> 1.70
---
Log message:

For APInt::z/sext(width), if width == BitWidth, just return *this.


---
Diffs of the changes:  (+4 -0)

 APInt.cpp |    4 ++++
 1 files changed, 4 insertions(+)


Index: llvm/lib/Support/APInt.cpp
diff -u llvm/lib/Support/APInt.cpp:1.69 llvm/lib/Support/APInt.cpp:1.70
--- llvm/lib/Support/APInt.cpp:1.69	Sun Mar  4 18:00:42 2007
+++ llvm/lib/Support/APInt.cpp	Mon Mar 12 12:47:45 2007
@@ -921,6 +921,8 @@
 
 // Sign extend to a new width.
 APInt &APInt::sext(uint32_t width) {
+  if (width == BitWidth)
+    return *this;
   assert(width > BitWidth && "Invalid APInt SignExtend request");
   assert(width <= IntegerType::MAX_INT_BITS && "Too many bits");
   // If the sign bit isn't set, this is the same as zext.
@@ -969,6 +971,8 @@
 
 //  Zero extend to a new width.
 APInt &APInt::zext(uint32_t width) {
+  if (width == BitWidth)
+    return *this;
   assert(width > BitWidth && "Invalid APInt ZeroExtend request");
   assert(width <= IntegerType::MAX_INT_BITS && "Too many bits");
   uint32_t wordsBefore = getNumWords();