synth: SYNTH_STATS naming doesn't leak implementation details

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/Makefile

@@ -180,7 +180,7 @@ include $(PLATFORM_DIR)/config.mk
 
 # Enables hierarchical yosys
 export SYNTH_HIERARCHICAL ?= 0
-export SYNTH_STOP_MODULE_SCRIPT = $(RESULTS_DIR)/keep_hierarchy.tcl
+export SYNTH_STATS = $(RESULTS_DIR)/synth_stats.txt
 export HIER_REPORT_SCRIPT = $(SCRIPTS_DIR)/synth_hier_report.tcl
 export MAX_UNGROUP_SIZE ?= 0
 
@@ -519,7 +519,7 @@ clean_synth:
 	rm -f $(RESULTS_DIR)/1_* $(RESULTS_DIR)/mem.json
 	rm -f $(REPORTS_DIR)/synth_*
 	rm -f $(LOG_DIR)/1_*
-	rm -f $(SYNTH_STOP_MODULE_SCRIPT)
+	rm -f $(SYNTH_STATS)
 	rm -f $(SDC_FILE_CLOCK_PERIOD)
 	rm -rf _tmp_yosys-abc-*
 

flow/scripts/synth.tcl

@@ -8,19 +8,19 @@ if { $::env(MAX_UNGROUP_SIZE) > 0 } {
   puts "Ungroup modules of size greater than $ungroup_threshold"
 }
 
-set fp [open $::env(SYNTH_STOP_MODULE_SCRIPT) r]
+set fp [open $::env(SYNTH_STATS) r]
 while {[gets $fp line] != -1} {
     set fields [split $line " "]
     set area [lindex $fields 0]
     set module_name [lindex $fields 1]
 
     if {[expr $area > $ungroup_threshold]} {
-      puts "Keeping $area $module_name"
+      puts "Keeping module $module_name (area: $area)"
       select -module $module_name
       setattr -mod -set keep_hierarchy 1
       select -clear
     } else {
-      puts "Flattening $area $module_name"
+      puts "Flattening module $module_name (area: $area)"
     }
 }
 close $fp

flow/scripts/synth_hier_report.tcl

@@ -2,7 +2,7 @@ source $::env(SCRIPTS_DIR)/util.tcl
 
 proc write_keep_hierarchy {} {
   if { ![env_var_equals SYNTH_HIERARCHICAL 1] } {
-    set out_script_ptr [open $::env(SYNTH_STOP_MODULE_SCRIPT) w]
+    set out_script_ptr [open $::env(SYNTH_STATS) w]
     close $out_script_ptr
     return
   }
@@ -65,7 +65,7 @@ proc write_keep_hierarchy {} {
   }
   set areas [lsort -index 0 -real $areas]
 
-  set out_script_ptr [open $::env(SYNTH_STOP_MODULE_SCRIPT) w]
+  set out_script_ptr [open $::env(SYNTH_STATS) w]
   foreach {line} $areas {
     puts $out_script_ptr $line
   }