search for: repdstreg

Displaying 4 results from an estimated 4 matches for "repdstreg".

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2007 Jul 17
2
[LLVMdev] [PATCH] Re: Pluggable Register Coalescers
...(JoinIntervals(DstInt, SrcInt)) { [...] 00322 } else { [...] 00332 } Ok, at this point intervals were joined and in the process, DstInt and SrcInt might have been swapped by LiveInterval::join. 00334 bool Swapped = repSrcReg == DstInt.reg; 00335 if (Swapped) 00336 std::swap(repSrcReg, repDstReg); 00337 assert(MRegisterInfo::isVirtualRegister(repSrcReg) && 00338 "LiveInterval::join didn't work right!"); Ok, this code says that if the intervals were swapped, swap the register numbers we previously extracted from the live intervals before joining. This make...
2007 Jul 18
0
[LLVMdev] [PATCH] Re: Pluggable Register Coalescers
...; 00369 // If the intervals were swapped by Join, swap them back so > that the > register > 00370 // mapping (in the r2i map) is correct. > 00371 if (Swapped) SrcInt.swap(DstInt); > > Whoops! At this point repSrcReg is not consistent with SrcInt and the > same goes for repDstReg! > > 00372 li_->removeInterval(repSrcReg); > 00373 r2rMap_[repSrcReg] = repDstReg; > > Does this code get us into trouble due to the inconsistency created > above? > > Is this a bug? There's a lot of indirection going on here and it's > hard to > ke...
2007 Jul 16
0
[LLVMdev] [PATCH] Re: Pluggable Register Coalescers
On Jul 16, 2007, at 9:12 AM, David Greene wrote: > On Friday 13 July 2007 13:32, David A. Greene wrote: >> On Wednesday 11 July 2007 15:07, Christopher Lamb wrote: >>> Could it be possible for there to be a harness type interface that >>> would allow coalescers that support both modes to be hooked into the >>> pass registration, and those that depend on the
2007 Jul 16
2
[LLVMdev] [PATCH] Re: Pluggable Register Coalescers
On Friday 13 July 2007 13:32, David A. Greene wrote: > On Wednesday 11 July 2007 15:07, Christopher Lamb wrote: > > Could it be possible for there to be a harness type interface that > > would allow coalescers that support both modes to be hooked into the > > pass registration, and those that depend on the allocator not be > > registered as passes? > > I have a