From 5d2fada44ce77c6db15173a8107bf253c2293170 Mon Sep 17 00:00:00 2001 From: Nuno Lopes Date: Tue, 17 Jul 2012 15:43:59 +0000 Subject: [PATCH] simplify getSetSize() per Duncan's comments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160368 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/ConstantRange.cpp | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp index 221ca948ca5..b7b38e4c2e1 100644 --- a/lib/Support/ConstantRange.cpp +++ b/lib/Support/ConstantRange.cpp @@ -146,14 +146,13 @@ APInt ConstantRange::getSetSize() const { if (isEmptySet()) return APInt(getBitWidth()+1, 0); - if (isFullSet()) - return APInt::getMaxValue(getBitWidth()).zext(getBitWidth()+1) + 1; - - if (isWrappedSet()) { - APInt Result = Upper + (APInt::getMaxValue(getBitWidth()) - Lower + 1); - return Result.zext(getBitWidth()+1); + if (isFullSet()) { + APInt Size(getBitWidth()+1, 0); + Size.setBit(getBitWidth()); + return Size; } + // This is also correct for wrapped sets. return (Upper - Lower).zext(getBitWidth()+1); } -- 2.34.1