[llvm] r301052 - [APSInt] Make use of APInt's recently acquired in place lshr and shl capabilities in APSInt's >>= and <<= operators.
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Fri Apr 21 15:30:06 PDT 2017
Author: ctopper
Date: Fri Apr 21 17:30:06 2017
New Revision: 301052
URL: http://llvm.org/viewvc/llvm-project?rev=301052&view=rev
Log:
[APSInt] Make use of APInt's recently acquired in place lshr and shl capabilities in APSInt's >>= and <<= operators.
APInt hasn't acquired an in place ashr yet, but hopefully soon.
Modified:
llvm/trunk/include/llvm/ADT/APSInt.h
Modified: llvm/trunk/include/llvm/ADT/APSInt.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APSInt.h?rev=301052&r1=301051&r2=301052&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APSInt.h (original)
+++ llvm/trunk/include/llvm/ADT/APSInt.h Fri Apr 21 17:30:06 2017
@@ -125,7 +125,10 @@ public:
return IsUnsigned ? APSInt(lshr(Amt), true) : APSInt(ashr(Amt), false);
}
APSInt& operator>>=(unsigned Amt) {
- *this = *this >> Amt;
+ if (IsUnsigned)
+ lshrInPlace(Amt);
+ else
+ *this = *this >> Amt;
return *this;
}
@@ -179,7 +182,7 @@ public:
return APSInt(static_cast<const APInt&>(*this) << Bits, IsUnsigned);
}
APSInt& operator<<=(unsigned Amt) {
- *this = *this << Amt;
+ static_cast<APInt&>(*this) <<= Amt;
return *this;
}
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