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this assert should just be a condition, since this function is just asking if

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the offset is legally encodable, not actually trying to do the encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112622 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-08-31 18:49:31 +00:00
parent b95df124b2
commit d4511e947e
1 changed files with 5 additions and 2 deletions
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7
lib/Target/ARM/ARMBaseRegisterInfo.cpp
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@ -1605,11 +1605,14 @@ bool ARMBaseRegisterInfo::isFrameOffsetLegal(const MachineInstr *MI,
}
Offset += getFrameIndexInstrOffset(MI, i);
assert((Offset & (Scale-1)) == 0 && "Can't encode this offset!");
// Make sure the offset is encodable for instructions that scale the
// immediate.
if ((Offset & (Scale-1)) != 0)
return false;
if (isSigned && Offset < 0)
Offset = -Offset;
unsigned Mask = (1 << NumBits) - 1;
if ((unsigned)Offset <= Mask * Scale)
return true;