Displaying 5 results from an estimated 5 matches for "getvaluesizeinbits".
2019 May 06
2
RFC: On removing magic numbers assuming 8-bit bytes
...nt to
modify is using the byte terminology today. An example of unmodified
code from my showcase patch set:
assert(!(Shift & 0x7) == 0 &&
"Shifts not aligned on Bytes are not supported.");
uint64_t Offset = Shift / 8;
unsigned TySizeInBytes = Origin->getValueSizeInBits(0) / 8;
assert(!(Origin->getValueSizeInBits(0) & 0x7) == 0 &&
"The size of the original loaded type is not a
"multiple of a byte.");
How would you prefer we handle this? If we only remove the magic
numbers using getAddressableUnitSize() inst...
2019 May 03
2
RFC: On removing magic numbers assuming 8-bit bytes
Jeroen Dobbelaere via llvm-dev <llvm-dev at lists.llvm.org> writes:
> Hi Jesper,
>
>> Thanks, these are interesting differences. The CHAR_BIT and byte
>> relation is established in the C standard and I would prefer the byte
>> terminology. It means the same thing as addressable unit but is a bit
>> shorter and probably more widely known.
>
> Looking
2009 May 21
0
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
On Wed, May 20, 2009 at 4:55 PM, Dan Gohman <gohman at apple.com> wrote:
> Can you explain why you chose the approach of using a new pass?
> I pictured removing LegalizeDAG's type legalization code would
> mostly consist of finding all the places that use TLI.getTypeAction
> and just deleting code for handling its Expand and Promote. Are you
> anticipating something more
2009 May 20
2
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
On May 20, 2009, at 1:34 PM, Eli Friedman wrote:
> On Wed, May 20, 2009 at 1:19 PM, Eli Friedman
> <eli.friedman at gmail.com> wrote:
>
>> Per subject, this patch adding an additional pass to handle vector
>>
>> operations; the idea is that this allows removing the code from
>>
>> LegalizeDAG that handles illegal types, which should be a significant
2009 May 21
2
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
...teOp(Node->getOperand(1)); // Promote the condition.
+ Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition.
- // The top bits of the promoted condition are not necessarily zero, ensure
- // that the value is properly zero extended.
- unsigned BitWidth = Tmp2.getValueSizeInBits();
- if (!DAG.MaskedValueIsZero(Tmp2,
- APInt::getHighBitsSet(BitWidth, BitWidth-1)))
- Tmp2 = DAG.getZeroExtendInReg(Tmp2, dl, MVT::i1);
- break;
- }
- }
-
// Basic block destination (Op#2) is always legal.
Result = DAG.UpdateNodeOpe...