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authorMon P Wang <wangmp@apple.com>2010-04-29 05:53:29 +0000
committerMon P Wang <wangmp@apple.com>2010-04-29 05:53:29 +0000
commitfc39dc4c7886723310419b1869cf651ca55b7af4 (patch)
treef0789cc89d713529bb2b45f40ae1cd549fae6566 /lib/AST/ExprConstant.cpp
parent77e2c67411084c47b1cf511a191b31adf38662ba (diff)
A not equal for an unordered relation should return true as specified in IEEE-754, e.g.,
NAN != NAN ? 1 : 0 should return 1. Also fix the case for complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102598 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AST/ExprConstant.cpp')
-rw-r--r--lib/AST/ExprConstant.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 1c2b76eede..c1a42d88ff 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -1119,9 +1119,11 @@ bool IntExprEvaluator::VisitBinaryOperator(const BinaryOperator *E) {
assert(E->getOpcode() == BinaryOperator::NE &&
"Invalid complex comparison.");
return Success(((CR_r == APFloat::cmpGreaterThan ||
- CR_r == APFloat::cmpLessThan) &&
+ CR_r == APFloat::cmpLessThan ||
+ CR_r == APFloat::cmpUnordered) ||
(CR_i == APFloat::cmpGreaterThan ||
- CR_i == APFloat::cmpLessThan)), E);
+ CR_i == APFloat::cmpLessThan ||
+ CR_i == APFloat::cmpUnordered)), E);
}
} else {
if (E->getOpcode() == BinaryOperator::EQ)
@@ -1164,7 +1166,8 @@ bool IntExprEvaluator::VisitBinaryOperator(const BinaryOperator *E) {
return Success(CR == APFloat::cmpEqual, E);
case BinaryOperator::NE:
return Success(CR == APFloat::cmpGreaterThan
- || CR == APFloat::cmpLessThan, E);
+ || CR == APFloat::cmpLessThan
+ || CR == APFloat::cmpUnordered, E);
}
}