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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-05-06 20:16:08 +0200 |
|---|---|---|
| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-05-06 20:16:08 +0200 |
| commit | f1f535cad98f3db3e586f0f7a2dbc329fc5bff6f (patch) | |
| tree | 1a4fed5a512a4db2c62472ba7ee2e7cf2810ed3c /driver | |
| parent | b679621ac631ac2783bfd391042d30c120b5a220 (diff) | |
| download | compcert-kvx-f1f535cad98f3db3e586f0f7a2dbc329fc5bff6f.tar.gz compcert-kvx-f1f535cad98f3db3e586f0f7a2dbc329fc5bff6f.zip | |
CSE3 across merges
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/Clflags.ml | 1 | ||||
| -rw-r--r-- | driver/Compopts.v | 3 | ||||
| -rw-r--r-- | driver/Driver.ml | 2 |
3 files changed, 6 insertions, 0 deletions
diff --git a/driver/Clflags.ml b/driver/Clflags.ml index 14d15ba6..d84a546d 100644 --- a/driver/Clflags.ml +++ b/driver/Clflags.ml @@ -30,6 +30,7 @@ let option_fcse2 = ref false let option_fcse3 = ref true let option_fcse3_alias_analysis = ref true let option_fcse3_across_calls = ref false +let option_fcse3_across_merges = ref true let option_fredundancy = ref true let option_fduplicate = ref (-1) let option_finvertcond = ref true diff --git a/driver/Compopts.v b/driver/Compopts.v index 3c5ccf36..445f5793 100644 --- a/driver/Compopts.v +++ b/driver/Compopts.v @@ -51,6 +51,9 @@ Parameter optim_CSE3_alias_analysis: unit -> bool. (** Flag -fcse3-across-calls. For DMonniaux's common subexpression elimination. Propagate information across function calls (may increase register pressure). *) Parameter optim_CSE3_across_calls: unit -> bool. +(** Flag -fcse3-across-calls. For DMonniaux's common subexpression elimination. Propagate information across control-flow merges (may increase register pressure). *) +Parameter optim_CSE3_across_merges: unit -> bool. + (** Flag -fmove-loop-invariants. *) Parameter optim_move_loop_invariants: unit -> bool. diff --git a/driver/Driver.ml b/driver/Driver.ml index b9060ca7..9d1caa9e 100644 --- a/driver/Driver.ml +++ b/driver/Driver.ml @@ -200,6 +200,7 @@ Processing options: -fcse3 Perform inter-loop common subexpression elimination [on] -fcse3-alias-analysis Perform inter-loop common subexpression elimination with alias analysis [on] -fcse3-across-calls Propagate CSE3 information across function calls [off] + -fcse3-across-merges Propagate CSE3 information across control-flow merges [on] -fmove-loop-invariants Perform loop-invariant code motion [off] -fredundancy Perform redundancy elimination [on] -fpostpass Perform postpass scheduling (only for K1 architecture) [on] @@ -413,6 +414,7 @@ let cmdline_actions = @ f_opt "cse3" option_fcse3 @ f_opt "cse3-alias-analysis" option_fcse3_alias_analysis @ f_opt "cse3-across-calls" option_fcse3_across_calls + @ f_opt "cse3-across-merges" option_fcse3_across_merges @ f_opt "move-loop-invariants" option_fmove_loop_invariants @ f_opt "redundancy" option_fredundancy @ f_opt "postpass" option_fpostpass |