From 99ed68ea7fc100ae77cde16219bafc4c693a7d0f Mon Sep 17 00:00:00 2001 From: Vladimir Makarov Date: Fri, 5 Jul 2002 21:40:16 +0000 Subject: [PATCH] genautomata.c (output_max_insn_queue_index_def): Take latencies into account. 2002-07-05 Vladimir Makarov * genautomata.c (output_max_insn_queue_index_def): Take latencies into account. From-SVN: r55269 --- gcc/ChangeLog | 5 +++++ 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 + + * genautomata.c (output_max_insn_queue_index_def): Take latencies + into account. + 2002-07-06 Stephane Carrez * 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 (); -- 2.30.2