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authorOwen Anderson <resistor@mac.com>2009-07-13 22:18:28 +0000
committerOwen Anderson <resistor@mac.com>2009-07-13 22:18:28 +0000
commitfa82b6eba4e1584d7dba291c28fe908272e1e002 (patch)
tree033b1e9a873ad04863a5c5849ab515ba31d17e60 /include/llvm/Constants.h
parent0c39e3839a7d7e0dbd49b6b2d3e1bdc735b2b3aa (diff)
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These don't really need contexts either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75528 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Constants.h')
-rw-r--r--include/llvm/Constants.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index b727de31ae..143f3ad757 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -270,6 +270,12 @@ public:
/// getNullValue. Don't depend on == for doubles to tell us it's zero, it
/// considers -0.0 to be null as well as 0.0. :(
virtual bool isNullValue() const;
+
+ /// isNegativeZeroValue - Return true if the value is what would be returned
+ /// by getZeroValueForNegation.
+ virtual bool isNegativeZeroValue() const {
+ return Val.isZero() && Val.isNegative();
+ }
/// isExactlyValue - We don't rely on operator== working on double values, as
/// it returns true for things that are clearly not equal, like -0.0 and 0.0.