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Constant fold int-to-long-double conversions;

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use APFloat for int-to-float/double; use
round-to-nearest for these (implementation-defined,
seems to match gcc).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42484 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2007-09-30 18:19:03 +00:00
parent cce23a4c35
commit 88216af3ea
4 changed files with 13 additions and 21 deletions
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4
lib/ExecutionEngine/ExecutionEngine.cpp
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@@ -398,7 +398,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
APFloat apf = APFloat(APInt(80, 2, zero));
(void)apf.convertFromInteger(GV.IntVal.getRawData(),
GV.IntVal.getBitWidth(), false,
APFloat::rmTowardZero);
APFloat::rmNearestTiesToEven);
GV.IntVal = apf.convertToAPInt();
}
return GV;
@@ -414,7 +414,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
APFloat apf = APFloat(APInt(80, 2, zero));
(void)apf.convertFromInteger(GV.IntVal.getRawData(),
GV.IntVal.getBitWidth(), true,
APFloat::rmTowardZero);
APFloat::rmNearestTiesToEven);
GV.IntVal = apf.convertToAPInt();
}
return GV;