Displaying 5 results from an estimated 5 matches for "reg16506".
2011 May 19
3
[LLVMdev] subregisters, def-kill
Hi,
I am combining 16-bit registers to a 32 bit register in order to make a wide store, as per below:
732 %reg16506:hi16<def,dead> = COPY %reg16445<kill>;
740 %reg16506:lo16<def> = COPY %reg16468<kill>;
748 %r3<def,dead> = store %reg16506<kill>, %r3,
As you can see, LiveVariables has marked the high part dead, even though the super-register is used at SlotIndex 748. Why is...
2011 May 20
1
[LLVMdev] subregisters, def-kill
If I write
%reg16506<def> = INSERT_SUBREG %reg16506, %reg16445, hi16; #1
%reg16506<def> = INSERT_SUBREG %reg16506, %reg16468, lo16; #2
store %reg16506 #3
it will not coalesce, as
LiveVariables:
on
#2: %16506 gets #...
2011 May 19
0
[LLVMdev] subregisters, def-kill
On May 19, 2011, at 7:47 AM, Jonas Paulsson wrote:
> Hi,
>
> I am combining 16-bit registers to a 32 bit register in order to make a wide store, as per below:
>
> 732 %reg16506:hi16<def,dead> = COPY %reg16445<kill>;
> 740 %reg16506:lo16<def> = COPY %reg16468<kill>;
> 748 %r3<def,dead> = store %reg16506<kill>, %r3,
>
> As you can see, LiveVariables has marked the high part dead, even though the super-register is used at Sl...
2011 May 20
1
[LLVMdev] subregisters, def-kill
...gt; CC: llvmdev at cs.uiuc.edu
> To: jnspaulsson at hotmail.com
>
>
> On May 19, 2011, at 7:47 AM, Jonas Paulsson wrote:
>
> > Hi,
> >
> > I am combining 16-bit registers to a 32 bit register in order to make a wide store, as per below:
> >
> > 732 %reg16506:hi16<def,dead> = COPY %reg16445<kill>;
> > 740 %reg16506:lo16<def> = COPY %reg16468<kill>;
> > 748 %r3<def,dead> = store %reg16506<kill>, %r3,
> >
> > As you can see, LiveVariables has marked the high part dead, even though the super-re...
2011 May 20
1
[LLVMdev] LLVMdev Digest, Vol 83, Issue 33
...7913 at 2pi.dk>
> Content-Type: text/plain; CHARSET=US-ASCII
>
>
> On May 19, 2011, at 7:47 AM, Jonas Paulsson wrote:
>
> > Hi,
> >
> > I am combining 16-bit registers to a 32 bit register in order to make a
> wide store, as per below:
> >
> > 732 %reg16506:hi16<def,dead> = COPY %reg16445<kill>;
> > 740 %reg16506:lo16<def> = COPY %reg16468<kill>;
> > 748 %r3<def,dead> = store %reg16506<kill>, %r3,
> >
> > As you can see, LiveVariables has marked the high part dead, even though
> the super-...