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| Related articles |
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| [13 earlier articles] |
| Re: Register allocation gopi@sankhya.com (2004-08-10) |
| Re: Register allocation anton@mips.complang.tuwien.ac.at (2004-08-10) |
| Re: Register allocation anton@mips.complang.tuwien.ac.at (2004-08-10) |
| Re: Register allocation kym@kymhorsell.com (2004-08-11) |
| Re: Register allocation kamalp@acm.org (2004-08-13) |
| Register allocation thibault.langlois@di.fc.ul.pt (thibault.langlois@di.fc.ul.pt) (2005-05-13) |
| Re: Register allocation rgd00@doc.ic.ac.uk (Rob Dimond) (2005-05-16) |
| Re: Register allocation torbenm@diku.dk (2005-05-18) |
| Re: Register allocation thibault.langlois@di.fc.ul.pt (thibault.langlois@di.fc.ul.pt) (2005-05-20) |
| Re: Register allocation c3riechers@adelphia.com (Chuck Riechers) (2005-05-21) |
| register allocation camille@bluegrass.net (David Lindauer) (2005-11-12) |
| register allocation dgb@cs.washington.edu (1989-11-22) |
| Re: register allocation larus@primost.wisc.EDU (1989-11-24) |
| [9 later articles] |
| From: | Rob Dimond <rgd00@doc.ic.ac.uk> |
| Newsgroups: | comp.compilers |
| Date: | 16 May 2005 11:24:34 -0400 |
| Organization: | Department of Computing, Imperial College, London |
| References: | 05-05-062 |
| Keywords: | registers |
| Posted-Date: | 16 May 2005 11:24:34 EDT |
thibault.langlois@di.fc.ul.pt wrote:
> The register allocation should be performed on the intermediate
> representation (to assign temporaries to registers) or should I choose
> the instructions of the target processor first, assuming an infinite
> number of registers and then use the register allocation to match the
> actual set of registers ?
For most instruction sets it would make sense to do instruction
selection before register allocation. The instructions selected might
need to evaluate into a particular register, or else require operands
in another register.
By pre-allocating registers you might prevent the use of certain
instructions or even make code generation impossible.
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