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| author | Bernhard Schommer <bernhardschommer@gmail.com> | 2020-04-16 20:23:35 +0200 |
|---|---|---|
| committer | Bernhard Schommer <bernhardschommer@gmail.com> | 2020-04-20 13:30:03 +0200 |
| commit | 438d541dbe5fe7d7fe6b7aacaa6e6ef070c2e237 (patch) | |
| tree | f2ca20b3130b302bdaf3841d6105c8138dd48583 /backend | |
| parent | 0a2db0269809539ccc66f8ec73637c37fbd23580 (diff) | |
| download | compcert-438d541dbe5fe7d7fe6b7aacaa6e6ef070c2e237.tar.gz compcert-438d541dbe5fe7d7fe6b7aacaa6e6ef070c2e237.zip | |
Move reserved_registers to CPragmas.
The list of reserved_registers is never reset between the compilation of
multiple files. Instead of storing them in IRC they are moved in the
CPragmas file and reset in the a new reset function for Cpragmas whic is
called per file.
Diffstat (limited to 'backend')
| -rw-r--r-- | backend/IRC.ml | 4 | ||||
| -rw-r--r-- | backend/IRC.mli | 4 |
2 files changed, 1 insertions, 7 deletions
diff --git a/backend/IRC.ml b/backend/IRC.ml index b359da35..e94d6fbb 100644 --- a/backend/IRC.ml +++ b/backend/IRC.ml @@ -252,12 +252,10 @@ let class_of_loc = function let no_spill_class = 2 -let reserved_registers = ref ([]: mreg list) - let rec remove_reserved = function | [] -> [] | hd :: tl -> - if List.mem hd !reserved_registers + if List.mem hd !CPragmas.reserved_registers then remove_reserved tl else hd :: remove_reserved tl diff --git a/backend/IRC.mli b/backend/IRC.mli index 30b6d5c1..59471329 100644 --- a/backend/IRC.mli +++ b/backend/IRC.mli @@ -13,7 +13,6 @@ (* Iterated Register Coalescing: George and Appel's graph coloring algorithm *) open Registers -open Machregs open Locations open XTL @@ -39,9 +38,6 @@ val add_pref: graph -> var -> var -> unit (* Color the graph. Return an assignment of locations to variables. *) val coloring: graph -> (var -> loc) -(* Machine registers that are reserved and not available for allocation. *) -val reserved_registers: mreg list ref - (* Auxiliaries to deal with register classes *) val class_of_type: AST.typ -> int val class_of_loc: loc -> int |