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| author | Bernhard Schommer <bernhardschommer@gmail.com> | 2023-01-09 15:53:30 +0100 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2023-03-06 11:04:42 +0100 |
| commit | a6e44cd88d2b37a7747d5057d04834c0deaa6601 (patch) | |
| tree | 48cf6c88696cb05f93f50fa1d400a8903bfd911e /Makefile.extr | |
| parent | 30cb8bfbe8c4695a83b11cdaa409ccef1bac0395 (diff) | |
| download | compcert-a6e44cd88d2b37a7747d5057d04834c0deaa6601.tar.gz compcert-a6e44cd88d2b37a7747d5057d04834c0deaa6601.zip | |
Change preference for new register in allocator
Currently, the register allocator picks caller-save registers in preference
to callee-save registers.
But for ARM in Thumb mode, more compact code is obtained if we prefer
integer registers R0...R3 rather than all integer caller-save registers.
This commit introduces an `allocatable_registers` function in
$ARCH/Conventions1.v that determines the preferred and remaining
registers to be used for register allocation.
Diffstat (limited to 'Makefile.extr')
0 files changed, 0 insertions, 0 deletions