diff options
| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-07-05 21:40:16 +0000 |
|---|---|---|
| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-07-05 21:40:16 +0000 |
| commit | 3edc722e7aca2e6328fe60a21cbb103de15d517a (patch) | |
| tree | 9a466fed04bd1497fcd54cb4ac7e56f6c6da887b | |
| parent | bc7cbc6ab07614a89d03d96e6d25b2e2fe074360 (diff) | |
2002-07-05 Vladimir Makarov <vmakarov@redhat.com>
* genautomata.c (output_max_insn_queue_index_def): Take latencies
into account.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@55269 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/genautomata.c | 27 |
2 files changed, 28 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a3086e1a4b4..39e005ba80f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-07-05 Vladimir Makarov <vmakarov@redhat.com> + + * genautomata.c (output_max_insn_queue_index_def): Take latencies + into account. + 2002-07-06 Stephane Carrez <stcarrez@nerim.fr> * config/m68hc11/m68hc11.md (peephole2): New peephole2 to optimize diff --git a/gcc/genautomata.c b/gcc/genautomata.c index d5a74609538..0fddf2706e1 100644 --- a/gcc/genautomata.c +++ b/gcc/genautomata.c @@ -6872,7 +6872,7 @@ process_state_longest_path_length (state) max_dfa_issue_rate = value; } -/* The following nacro value is name of the corresponding global +/* The following macro value is name of the corresponding global variable in the automaton based pipeline interface. */ #define MAX_DFA_ISSUE_RATE_VAR_NAME "max_dfa_issue_rate" @@ -7960,13 +7960,32 @@ output_tables () } /* The function outputs definition and value of PHR interface variable - `max_insn_queue_index' */ + `max_insn_queue_index'. Its value is not less than maximal queue + length needed for the insn scheduler. */ static void output_max_insn_queue_index_def () { - int i; + int i, max, latency; + decl_t decl; - for (i = 0; (1 << i) <= description->max_insn_reserv_cycles; i++) + max = description->max_insn_reserv_cycles; + for (i = 0; i < description->decls_num; i++) + { + decl = description->decls [i]; + if (decl->mode == dm_insn_reserv && decl != advance_cycle_insn_decl) + { + latency = DECL_INSN_RESERV (decl)->default_latency; + if (latency > max) + max = latency; + } + else if (decl->mode == dm_bypass) + { + latency = DECL_BYPASS (decl)->latency; + if (latency > max) + max = latency; + } + } + for (i = 0; (1 << i) <= max; i++) ; if (i < 0) abort (); |