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Fix problems in the CBE and InstructionCombining which use the isMaxValue

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and isMinValue methods of ConstantInt. These have been broken since the
isSigned parameter was added. It is necessary to use the signed version
of the type in the call to isValueValidForType or else incorrect results
are returned.

llvm-svn: 32637
This commit is contained in:
Reid Spencer 2006-12-17 06:07:30 +00:00
parent 7f6a73eb5c
commit be18cd1575
1 changed files with 2 additions and 2 deletions
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4
include/llvm/Constants.h
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@ -205,7 +205,7 @@ public:
int64_t V = getSExtValue();
if (V < 0) return false; // Be careful about wrap-around on 'long's
++V;
return !isValueValidForType(getType(), V) || V < 0;
return !isValueValidForType(getType()->getSignedVersion(), V) || V < 0;
}
return isAllOnesValue();
}
@ -219,7 +219,7 @@ public:
int64_t V = getSExtValue();
if (V > 0) return false; // Be careful about wrap-around on 'long's
--V;
return !isValueValidForType(getType(), V) || V > 0;
return !isValueValidForType(getType()->getSignedVersion(), V) || V > 0;
}
return getZExtValue() == 0;
}