Displaying 2 results from an estimated 2 matches for "isassignedregdep".
2009 Feb 06
2
[LLVMdev] list-td scheduler asserts on targets with implicitly defined registers
Hi,
I just switched to the 2.5 release branch and noticed that llc runs into the following assert in ScheduleDAGList::ScheduleNodeTopDown() using our custom backend:
assert(!I->isAssignedRegDep() &&
"The list-td scheduler doesn't yet support physreg dependencies!");
It turns out that the register dependency concerns the condition code register which is modeled as an implicitly defined register in the backend (the same happens for e.g. for X86 when explici...
2009 Feb 06
0
[LLVMdev] list-td scheduler asserts on targets with implicitly defined registers
...ar register class.
Evan
On Feb 6, 2009, at 2:22 AM, Christian Sayer wrote:
> Hi,
>
> I just switched to the 2.5 release branch and noticed that llc runs
> into the following assert in ScheduleDAGList::ScheduleNodeTopDown()
> using our custom backend:
>
> assert(!I->isAssignedRegDep() &&
> "The list-td scheduler doesn't yet support physreg
> dependencies!");
>
> It turns out that the register dependency concerns the condition
> code register which is modeled as an implicitly defined register in
> the backend (the same hap...