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2012 May 11
2
[LLVMdev] overlaps generation, RA crasch
Hi,
Recently on trunk, the ovlaps list for a register got a dual entry on my target, which caused the RA to crash.
Reg
Subreg1
Subreg b
Subreg2
Subreg b
I have a register with two subregs that have subreg b in common. This causes the SuperReg to appear twice in the ovelaps list for Subreg b.
As this causes a register allocator to crasch (it evicts a register, and then inremenets the *AliasI, but the data structure is then not ready t...
2012 May 11
0
[LLVMdev] overlaps generation, RA crasch
On May 11, 2012, at 6:35 AM, Jonas Paulsson <jonas.paulsson at ericsson.com> wrote:
> Hi,
>
> Recently on trunk, the ovlaps list for a register got a dual entry on my target, which caused the RA to crash.
>
> Reg
> Subreg1
> Subreg b
> Subreg2
> Subreg b
>
> I have a register with two subregs that have subreg b in common. This causes the SuperReg to appear twice in the ovelaps list for Subreg b
This should be fixed in r156629.
/jakob
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